Merge branch 'linus' into core/rcu

148 files changed, 1831 insertions, 1085 deletions

diff --git a/Documentation/HOWTO b/Documentation/HOWTO
index c2371c5..48a3955 100644
--- a/Documentation/HOWTO
+++ b/Documentation/HOWTO
@@ -77,7 +77,8 @@ documentation files are also added which explain how to use the feature.
 When a kernel change causes the interface that the kernel exposes to
 userspace to change, it is recommended that you send the information or
 a patch to the manual pages explaining the change to the manual pages
-maintainer at mtk.manpages@gmail.com.
+maintainer at mtk.manpages@gmail.com, and CC the list
+linux-api@vger.kernel.org.
 
 Here is a list of files that are in the kernel source tree that are
 required reading:
diff --git a/Documentation/SubmitChecklist b/Documentation/SubmitChecklist
index da10e07..21f0795 100644
--- a/Documentation/SubmitChecklist
+++ b/Documentation/SubmitChecklist
@@ -67,6 +67,8 @@ kernel patches.
 
 19: All new userspace interfaces are documented in Documentation/ABI/.
     See Documentation/ABI/README for more information.
+    Patches that change userspace interfaces should be CCed to
+    linux-api@vger.kernel.org.
 
 20: Check that it all passes `make headers_check'.
 
diff --git a/Documentation/video4linux/CARDLIST.em28xx b/Documentation/video4linux/CARDLIST.em28xx
index 89c7f32..53449cb 100644
--- a/Documentation/video4linux/CARDLIST.em28xx
+++ b/Documentation/video4linux/CARDLIST.em28xx
@@ -46,7 +46,7 @@
  45 -> Pinnacle PCTV DVB-T                      (em2870)
  46 -> Compro, VideoMate U3                     (em2870)        [185b:2870]
  47 -> KWorld DVB-T 305U                        (em2880)        [eb1a:e305]
- 48 -> KWorld DVB-T 310U                        (em2880)
+ 48 -> KWorld DVB-T 310U                        (em2880)        [eb1a:e310]
  49 -> MSI DigiVox A/D                          (em2880)        [eb1a:e310]
  50 -> MSI DigiVox A/D II                       (em2880)        [eb1a:e320]
  51 -> Terratec Hybrid XS Secam                 (em2880)        [0ccd:004c]
diff --git a/Documentation/video4linux/gspca.txt b/Documentation/video4linux/gspca.txt
index 0f03900..9a3e4d7 100644
--- a/Documentation/video4linux/gspca.txt
+++ b/Documentation/video4linux/gspca.txt
@@ -190,6 +190,7 @@ pac7311		093a:260f	SnakeCam
 pac7311		093a:2621	PAC731x
 pac7311		093a:2624	PAC7302
 pac7311		093a:2626	Labtec 2200
+pac7311		093a:262a	Webcam 300k
 zc3xx		0ac8:0302	Z-star Vimicro zc0302
 vc032x		0ac8:0321	Vimicro generic vc0321
 vc032x		0ac8:0323	Vimicro Vc0323
diff --git a/MAINTAINERS b/MAINTAINERS
index 3596d17..8dae455 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -1198,9 +1198,7 @@ M:	hpa@zytor.com
 S:	Maintained
 
 CPUSETS
-P:	Paul Jackson
 P:	Paul Menage
-M:	pj@sgi.com
 M:	menage@google.com
 L:	linux-kernel@vger.kernel.org
 W:	http://www.bullopensource.org/cpuset/
@@ -2706,6 +2704,7 @@ MAN-PAGES: MANUAL PAGES FOR LINUX -- Sections 2, 3, 4, 5, and 7
 P:	Michael Kerrisk
 M:	mtk.manpages@gmail.com
 W:	http://www.kernel.org/doc/man-pages
+L:	linux-man@vger.kernel.org
 S:	Supported
 
 MARVELL LIBERTAS WIRELESS DRIVER
diff --git a/Makefile b/Makefile
index 1d03c16..ce9eceb 100644
--- a/Makefile
+++ b/Makefile
@@ -1,7 +1,7 @@
 VERSION = 2
 PATCHLEVEL = 6
 SUBLEVEL = 27
-EXTRAVERSION = -rc8
+EXTRAVERSION = -rc9
 NAME = Rotary Wombat
 
 # *DOCUMENTATION*
diff --git a/arch/ia64/include/asm/sections.h b/arch/ia64/include/asm/sections.h
index f667998..1a873b3 100644
--- a/arch/ia64/include/asm/sections.h
+++ b/arch/ia64/include/asm/sections.h
@@ -11,6 +11,9 @@
 #include <asm-generic/sections.h>
 
 extern char __per_cpu_start[], __per_cpu_end[], __phys_per_cpu_start[];
+#ifdef	CONFIG_SMP
+extern char __cpu0_per_cpu[];
+#endif
 extern char __start___vtop_patchlist[], __end___vtop_patchlist[];
 extern char __start___rse_patchlist[], __end___rse_patchlist[];
 extern char __start___mckinley_e9_bundles[], __end___mckinley_e9_bundles[];
diff --git a/arch/ia64/kernel/head.S b/arch/ia64/kernel/head.S
index 8bdea8e..66e491d 100644
--- a/arch/ia64/kernel/head.S
+++ b/arch/ia64/kernel/head.S
@@ -367,16 +367,17 @@ start_ap:
 	;;
 #else
 (isAP)	br.few 2f
-	mov r20=r19
-	sub r19=r19,r18
+	movl r20=__cpu0_per_cpu
 	;;
 	shr.u r18=r18,3
 1:
-	ld8 r21=[r20],8;;
-	st8[r19]=r21,8
+	ld8 r21=[r19],8;;
+	st8[r20]=r21,8
 	adds r18=-1,r18;;
 	cmp4.lt p7,p6=0,r18
 (p7)	br.cond.dptk.few 1b
+	mov r19=r20
+	;;
 2:
 #endif
 	tpa r19=r19
diff --git a/arch/ia64/kernel/vmlinux.lds.S b/arch/ia64/kernel/vmlinux.lds.S
index de71da8..10a7d47e 100644
--- a/arch/ia64/kernel/vmlinux.lds.S
+++ b/arch/ia64/kernel/vmlinux.lds.S
@@ -215,9 +215,6 @@ SECTIONS
   /* Per-cpu data: */
   percpu : { } :percpu
   . = ALIGN(PERCPU_PAGE_SIZE);
-#ifdef	CONFIG_SMP
-  . = . + PERCPU_PAGE_SIZE;	/* cpu0 per-cpu space */
-#endif
   __phys_per_cpu_start = .;
   .data.percpu PERCPU_ADDR : AT(__phys_per_cpu_start - LOAD_OFFSET)
 	{
@@ -233,6 +230,11 @@ SECTIONS
   data : { } :data
   .data : AT(ADDR(.data) - LOAD_OFFSET)
 	{
+#ifdef	CONFIG_SMP
+  . = ALIGN(PERCPU_PAGE_SIZE);
+		__cpu0_per_cpu = .;
+  . = . + PERCPU_PAGE_SIZE;	/* cpu0 per-cpu space */
+#endif
 		DATA_DATA
 		*(.data1)
 		*(.gnu.linkonce.d*)
diff --git a/arch/ia64/mm/contig.c b/arch/ia64/mm/contig.c
index e566ff4..0ee085e 100644
--- a/arch/ia64/mm/contig.c
+++ b/arch/ia64/mm/contig.c
@@ -163,7 +163,7 @@ per_cpu_init (void)
 	 * get_zeroed_page().
 	 */
 	if (first_time) {
-		void *cpu0_data = __phys_per_cpu_start - PERCPU_PAGE_SIZE;
+		void *cpu0_data = __cpu0_per_cpu;
 
 		first_time=0;
 
diff --git a/arch/ia64/mm/discontig.c b/arch/ia64/mm/discontig.c
index 78026aa..d8c5fcd 100644
--- a/arch/ia64/mm/discontig.c
+++ b/arch/ia64/mm/discontig.c
@@ -144,7 +144,7 @@ static void *per_cpu_node_setup(void *cpu_data, int node)
 
 	for_each_possible_early_cpu(cpu) {
 		if (cpu == 0) {
-			void *cpu0_data = __phys_per_cpu_start - PERCPU_PAGE_SIZE;
+			void *cpu0_data = __cpu0_per_cpu;
 			__per_cpu_offset[cpu] = (char*)cpu0_data -
 				__per_cpu_start;
 		} else if (node == node_cpuid[cpu].nid) {
diff --git a/arch/mips/Kconfig b/arch/mips/Kconfig
index 49896a2..1e06d23 100644
--- a/arch/mips/Kconfig
+++ b/arch/mips/Kconfig
@@ -211,6 +211,7 @@ config MIPS_MALTA
 	select SYS_SUPPORTS_64BIT_KERNEL
 	select SYS_SUPPORTS_BIG_ENDIAN
 	select SYS_SUPPORTS_LITTLE_ENDIAN
+	select SYS_SUPPORTS_MIPS_CMP if BROKEN	# because SYNC_R4K is broken
 	select SYS_SUPPORTS_MULTITHREADING
 	select SYS_SUPPORTS_SMARTMIPS
 	help
@@ -1403,7 +1404,6 @@ config MIPS_MT_SMTC
 	depends on CPU_MIPS32_R2
 	#depends on CPU_MIPS64_R2		# once there is hardware ...
 	depends on SYS_SUPPORTS_MULTITHREADING
-	select GENERIC_CLOCKEVENTS_BROADCAST
 	select CPU_MIPSR2_IRQ_VI
 	select CPU_MIPSR2_IRQ_EI
 	select MIPS_MT
@@ -1451,32 +1451,17 @@ config MIPS_VPE_LOADER
 	  Includes a loader for loading an elf relocatable object
 	  onto another VPE and running it.
 
-config MIPS_MT_SMTC_INSTANT_REPLAY
-	bool "Low-latency Dispatch of Deferred SMTC IPIs"
-	depends on MIPS_MT_SMTC && !PREEMPT
-	default y
-	help
-	  SMTC pseudo-interrupts between TCs are deferred and queued
-	  if the target TC is interrupt-inhibited (IXMT). In the first
-	  SMTC prototypes, these queued IPIs were serviced on return
-	  to user mode, or on entry into the kernel idle loop. The
-	  INSTANT_REPLAY option dispatches them as part of local_irq_restore()
-	  processing, which adds runtime overhead (hence the option to turn
-	  it off), but ensures that IPIs are handled promptly even under
-	  heavy I/O interrupt load.
-
 config MIPS_MT_SMTC_IM_BACKSTOP
 	bool "Use per-TC register bits as backstop for inhibited IM bits"
 	depends on MIPS_MT_SMTC
-	default y
+	default n
 	help
 	  To support multiple TC microthreads acting as "CPUs" within
 	  a VPE, VPE-wide interrupt mask bits must be specially manipulated
 	  during interrupt handling. To support legacy drivers and interrupt
 	  controller management code, SMTC has a "backstop" to track and
 	  if necessary restore the interrupt mask. This has some performance
-	  impact on interrupt service overhead. Disable it only if you know
-	  what you are doing.
+	  impact on interrupt service overhead.
 
 config MIPS_MT_SMTC_IRQAFF
 	bool "Support IRQ affinity API"
@@ -1486,10 +1471,8 @@ config MIPS_MT_SMTC_IRQAFF
 	  Enables SMP IRQ affinity API (/proc/irq/*/smp_affinity, etc.)
 	  for SMTC Linux kernel. Requires platform support, of which
 	  an example can be found in the MIPS kernel i8259 and Malta
-	  platform code.  It is recommended that MIPS_MT_SMTC_INSTANT_REPLAY
-	  be enabled if MIPS_MT_SMTC_IRQAFF is used. Adds overhead to
-	  interrupt dispatch, and should be used only if you know what
-	  you are doing.
+	  platform code.  Adds some overhead to interrupt dispatch, and
+	  should be used only if you know what you are doing.
 
 config MIPS_VPE_LOADER_TOM
 	bool "Load VPE program into memory hidden from linux"
@@ -1517,6 +1500,18 @@ config MIPS_APSP_KSPD
 	  "exit" syscall notifying other kernel modules the SP program is
 	  exiting.  You probably want to say yes here.
 
+config MIPS_CMP
+	bool "MIPS CMP framework support"
+	depends on SYS_SUPPORTS_MIPS_CMP
+	select SYNC_R4K if BROKEN
+	select SYS_SUPPORTS_SMP
+	select SYS_SUPPORTS_SCHED_SMT if SMP
+	select WEAK_ORDERING
+	default n
+	help
+	  This is a placeholder option for the GCMP work. It will need to
+	  be handled differently...
+
 config SB1_PASS_1_WORKAROUNDS
 	bool
 	depends on CPU_SB1_PASS_1
@@ -1693,6 +1688,9 @@ config SMP
 config SMP_UP
 	bool
 
+config SYS_SUPPORTS_MIPS_CMP
+	bool
+
 config SYS_SUPPORTS_SMP
 	bool
 
@@ -1740,17 +1738,6 @@ config NR_CPUS
 	  performance should round up your number of processors to the next
 	  power of two.
 
-config MIPS_CMP
-	bool "MIPS CMP framework support"
-	depends on SMP
-	select SYNC_R4K
-	select SYS_SUPPORTS_SCHED_SMT
-	select WEAK_ORDERING
-	default n
-	help
-	  This is a placeholder option for the GCMP work. It will need to
-	  be handled differently...
-
 source "kernel/time/Kconfig"
 
 #
diff --git a/arch/mips/kernel/Makefile b/arch/mips/kernel/Makefile
index 706f939..25775cb 100644
--- a/arch/mips/kernel/Makefile
+++ b/arch/mips/kernel/Makefile
@@ -10,6 +10,7 @@ obj-y		+= cpu-probe.o branch.o entry.o genex.o irq.o process.o \
 
 obj-$(CONFIG_CEVT_BCM1480)	+= cevt-bcm1480.o
 obj-$(CONFIG_CEVT_R4K)		+= cevt-r4k.o
+obj-$(CONFIG_MIPS_MT_SMTC)	+= cevt-smtc.o
 obj-$(CONFIG_CEVT_DS1287)	+= cevt-ds1287.o
 obj-$(CONFIG_CEVT_GT641XX)	+= cevt-gt641xx.o
 obj-$(CONFIG_CEVT_SB1250)	+= cevt-sb1250.o
diff --git a/arch/mips/kernel/cevt-r4k.c b/arch/mips/kernel/cevt-r4k.c
index 24a2d90..4a4c59f 100644
--- a/arch/mips/kernel/cevt-r4k.c
+++ b/arch/mips/kernel/cevt-r4k.c
@@ -12,6 +12,14 @@
 
 #include <asm/smtc_ipi.h>
 #include <asm/time.h>
+#include <asm/cevt-r4k.h>
+
+/*
+ * The SMTC Kernel for the 34K, 1004K, et. al. replaces several
+ * of these routines with SMTC-specific variants.
+ */
+
+#ifndef CONFIG_MIPS_MT_SMTC
 
 static int mips_next_event(unsigned long delta,
                            struct clock_event_device *evt)
@@ -19,60 +27,27 @@ static int mips_next_event(unsigned long delta,
 	unsigned int cnt;
 	int res;
 
-#ifdef CONFIG_MIPS_MT_SMTC
-	{
-	unsigned long flags, vpflags;
-	local_irq_save(flags);
-	vpflags = dvpe();
-#endif
 	cnt = read_c0_count();
 	cnt += delta;
 	write_c0_compare(cnt);
 	res = ((int)(read_c0_count() - cnt) > 0) ? -ETIME : 0;
-#ifdef CONFIG_MIPS_MT_SMTC
-	evpe(vpflags);
-	local_irq_restore(flags);
-	}
-#endif
 	return res;
 }
 
-static void mips_set_mode(enum clock_event_mode mode,
-                          struct clock_event_device *evt)
+#endif /* CONFIG_MIPS_MT_SMTC */
+
+void mips_set_clock_mode(enum clock_event_mode mode,
+				struct clock_event_device *evt)
 {
 	/* Nothing to do ...  */
 }
 
-static DEFINE_PER_CPU(struct clock_event_device, mips_clockevent_device);
-static int cp0_timer_irq_installed;
+DEFINE_PER_CPU(struct clock_event_device, mips_clockevent_device);
+int cp0_timer_irq_installed;
 
-/*
- * Timer ack for an R4k-compatible timer of a known frequency.
- */
-static void c0_timer_ack(void)
-{
-	write_c0_compare(read_c0_compare());
-}
+#ifndef CONFIG_MIPS_MT_SMTC
 
-/*
- * Possibly handle a performance counter interrupt.
- * Return true if the timer interrupt should not be checked
- */
-static inline int handle_perf_irq(int r2)
-{
-	/*
-	 * The performance counter overflow interrupt may be shared with the
-	 * timer interrupt (cp0_perfcount_irq < 0). If it is and a
-	 * performance counter has overflowed (perf_irq() == IRQ_HANDLED)
-	 * and we can't reliably determine if a counter interrupt has also
-	 * happened (!r2) then don't check for a timer interrupt.
-	 */
-	return (cp0_perfcount_irq < 0) &&
-		perf_irq() == IRQ_HANDLED &&
-		!r2;
-}
-
-static irqreturn_t c0_compare_interrupt(int irq, void *dev_id)
+irqreturn_t c0_compare_interrupt(int irq, void *dev_id)
 {
 	const int r2 = cpu_has_mips_r2;
 	struct clock_event_device *cd;
@@ -93,12 +68,8 @@ static irqreturn_t c0_compare_interrupt(int irq, void *dev_id)
 	 * interrupt.  Being the paranoiacs we are we check anyway.
 	 */
 	if (!r2 || (read_c0_cause() & (1 << 30))) {
-		c0_timer_ack();
-#ifdef CONFIG_MIPS_MT_SMTC
-		if (cpu_data[cpu].vpe_id)
-			goto out;
-		cpu = 0;
-#endif
+		/* Clear Count/Compare Interrupt */
+		write_c0_compare(read_c0_compare());
 		cd = &per_cpu(mips_clockevent_device, cpu);
 		cd->event_handler(cd);
 	}
@@ -107,65 +78,16 @@ out:
 	return IRQ_HANDLED;
 }
 
-static struct irqaction c0_compare_irqaction = {
+#endif /* Not CONFIG_MIPS_MT_SMTC */
+
+struct irqaction c0_compare_irqaction = {
 	.handler = c0_compare_interrupt,
-#ifdef CONFIG_MIPS_MT_SMTC
-	.flags = IRQF_DISABLED,
-#else
 	.flags = IRQF_DISABLED | IRQF_PERCPU,
-#endif
 	.name = "timer",
 };
 
-#ifdef CONFIG_MIPS_MT_SMTC
-DEFINE_PER_CPU(struct clock_event_device, smtc_dummy_clockevent_device);
-
-static void smtc_set_mode(enum clock_event_mode mode,
-                          struct clock_event_device *evt)
-{
-}
-
-static void mips_broadcast(cpumask_t mask)
-{
-	unsigned int cpu;
-
-	for_each_cpu_mask(cpu, mask)
-		smtc_send_ipi(cpu, SMTC_CLOCK_TICK, 0);
-}
-
-static void setup_smtc_dummy_clockevent_device(void)
-{
-	//uint64_t mips_freq = mips_hpt_^frequency;
-	unsigned int cpu = smp_processor_id();
-	struct clock_event_device *cd;
 
-	cd = &per_cpu(smtc_dummy_clockevent_device, cpu);
-
-	cd->name		= "SMTC";
-	cd->features		= CLOCK_EVT_FEAT_DUMMY;
-
-	/* Calculate the min / max delta */
-	cd->mult	= 0; //div_sc((unsigned long) mips_freq, NSEC_PER_SEC, 32);
-	cd->shift		= 0; //32;
-	cd->max_delta_ns	= 0; //clockevent_delta2ns(0x7fffffff, cd);
-	cd->min_delta_ns	= 0; //clockevent_delta2ns(0x30, cd);
-
-	cd->rating		= 200;
-	cd->irq			= 17; //-1;
-//	if (cpu)
-//		cd->cpumask	= CPU_MASK_ALL; // cpumask_of_cpu(cpu);
-//	else
-		cd->cpumask	= cpumask_of_cpu(cpu);
-
-	cd->set_mode		= smtc_set_mode;
-
-	cd->broadcast		= mips_broadcast;
-
-	clockevents_register_device(cd);
-}
-#endif
-
-static void mips_event_handler(struct clock_event_device *dev)
+void mips_event_handler(struct clock_event_device *dev)
 {
 }
 
@@ -177,7 +99,23 @@ static int c0_compare_int_pending(void)
 	return (read_c0_cause() >> cp0_compare_irq) & 0x100;
 }
 
-static int c0_compare_int_usable(void)
+/*
+ * Compare interrupt can be routed and latched outside the core,
+ * so a single execution hazard barrier may not be enough to give
+ * it time to clear as seen in the Cause register.  4 time the
+ * pipeline depth seems reasonably conservative, and empirically
+ * works better in configurations with high CPU/bus clock ratios.
+ */
+
+#define compare_change_hazard() \
+	do { \
+		irq_disable_hazard(); \
+		irq_disable_hazard(); \
+		irq_disable_hazard(); \
+		irq_disable_hazard(); \
+	} while (0)
+
+int c0_compare_int_usable(void)
 {
 	unsigned int delta;
 	unsigned int cnt;
@@ -187,7 +125,7 @@ static int c0_compare_int_usable(void)
 	 */
 	if (c0_compare_int_pending()) {
 		write_c0_compare(read_c0_count());
-		irq_disable_hazard();
+		compare_change_hazard();
 		if (c0_compare_int_pending())
 			return 0;
 	}
@@ -196,7 +134,7 @@ static int c0_compare_int_usable(void)
 		cnt = read_c0_count();
 		cnt += delta;
 		write_c0_compare(cnt);
-		irq_disable_hazard();
+		compare_change_hazard();
 		if ((int)(read_c0_count() - cnt) < 0)
 		    break;
 		/* increase delta if the timer was already expired */
@@ -205,11 +143,12 @@ static int c0_compare_int_usable(void)
 	while ((int)(read_c0_count() - cnt) <= 0)
 		;	/* Wait for expiry  */
 
+	compare_change_hazard();
 	if (!c0_compare_int_pending())
 		return 0;
 
 	write_c0_compare(read_c0_count());
-	irq_disable_hazard();
+	compare_change_hazard();
 	if (c0_compare_int_pending())
 		return 0;
 
@@ -219,6 +158,8 @@ static int c0_compare_int_usable(void)
 	return 1;
 }
 
+#ifndef CONFIG_MIPS_MT_SMTC
+
 int __cpuinit mips_clockevent_init(void)
 {
 	uint64_t mips_freq = mips_hpt_frequency;
@@ -229,17 +170,6 @@ int __cpuinit mips_clockevent_init(void)
 	if (!cpu_has_counter || !mips_hpt_frequency)
 		return -ENXIO;
 
-#ifdef CONFIG_MIPS_MT_SMTC
-	setup_smtc_dummy_clockevent_device();
-
-	/*
-	 * On SMTC we only register VPE0's compare interrupt as clockevent
-	 * device.
-	 */
-	if (cpu)
-		return 0;
-#endif
-
 	if (!c0_compare_int_usable())
 		return -ENXIO;
 
@@ -265,13 +195,9 @@ int __cpuinit mips_clockevent_init(void)
 
 	cd->rating		= 300;
 	cd->irq			= irq;
-#ifdef CONFIG_MIPS_MT_SMTC
-	cd->cpumask		= CPU_MASK_ALL;
-#else
 	cd->cpumask		= cpumask_of_cpu(cpu);
-#endif
 	cd->set_next_event	= mips_next_event;
-	cd->set_mode		= mips_set_mode;
+	cd->set_mode		= mips_set_clock_mode;
 	cd->event_handler	= mips_event_handler;
 
 	clockevents_register_device(cd);
@@ -281,12 +207,9 @@ int __cpuinit mips_clockevent_init(void)
 
 	cp0_timer_irq_installed = 1;
 
-#ifdef CONFIG_MIPS_MT_SMTC
-#define CPUCTR_IMASKBIT (0x100 << cp0_compare_irq)
-	setup_irq_smtc(irq, &c0_compare_irqaction, CPUCTR_IMASKBIT);
-#else
 	setup_irq(irq, &c0_compare_irqaction);
-#endif
 
 	return 0;
 }
+
+#endif /* Not CONFIG_MIPS_MT_SMTC */
diff --git a/arch/mips/kernel/cevt-smtc.c b/arch/mips/kernel/cevt-smtc.c
new file mode 100644
index 0000000..5162fe4
--- /dev/null
+++ b/arch/mips/kernel/cevt-smtc.c
@@ -0,0 +1,321 @@
+/*
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License.  See the file "COPYING" in the main directory of this archive
+ * for more details.
+ *
+ * Copyright (C) 2007 MIPS Technologies, Inc.
+ * Copyright (C) 2007 Ralf Baechle <ralf@linux-mips.org>
+ * Copyright (C) 2008 Kevin D. Kissell, Paralogos sarl
+ */
+#include <linux/clockchips.h>
+#include <linux/interrupt.h>
+#include <linux/percpu.h>
+
+#include <asm/smtc_ipi.h>
+#include <asm/time.h>
+#include <asm/cevt-r4k.h>
+
+/*
+ * Variant clock event timer support for SMTC on MIPS 34K, 1004K
+ * or other MIPS MT cores.
+ *
+ * Notes on SMTC Support:
+ *
+ * SMTC has multiple microthread TCs pretending to be Linux CPUs.
+ * But there's only one Count/Compare pair per VPE, and Compare
+ * interrupts are taken opportunisitically by available TCs
+ * bound to the VPE with the Count register.  The new timer
+ * framework provides for global broadcasts, but we really
+ * want VPE-level multicasts for best behavior. So instead
+ * of invoking the high-level clock-event broadcast code,
+ * this version of SMTC support uses the historical SMTC
+ * multicast mechanisms "under the hood", appearing to the
+ * generic clock layer as if the interrupts are per-CPU.
+ *
+ * The approach taken here is to maintain a set of NR_CPUS
+ * virtual timers, and track which "CPU" needs to be alerted
+ * at each event.
+ *
+ * It's unlikely that we'll see a MIPS MT core with more than
+ * 2 VPEs, but we *know* that we won't need to handle more
+ * VPEs than we have "CPUs".  So NCPUs arrays of NCPUs elements
+ * is always going to be overkill, but always going to be enough.
+ */
+
+unsigned long smtc_nexttime[NR_CPUS][NR_CPUS];
+static int smtc_nextinvpe[NR_CPUS];
+
+/*
+ * Timestamps stored are absolute values to be programmed
+ * into Count register.  Valid timestamps will never be zero.
+ * If a Zero Count value is actually calculated, it is converted
+ * to be a 1, which will introduce 1 or two CPU cycles of error
+ * roughly once every four billion events, which at 1000 HZ means
+ * about once every 50 days.  If that's actually a problem, one
+ * could alternate squashing 0 to 1 and to -1.
+ */
+
+#define MAKEVALID(x) (((x) == 0L) ? 1L : (x))
+#define ISVALID(x) ((x) != 0L)
+
+/*
+ * Time comparison is subtle, as it's really truncated
+ * modular arithmetic.
+ */
+
+#define IS_SOONER(a, b, reference) \
+    (((a) - (unsigned long)(reference)) < ((b) - (unsigned long)(reference)))
+
+/*
+ * CATCHUP_INCREMENT, used when the function falls behind the counter.
+ * Could be an increasing function instead of a constant;
+ */
+
+#define CATCHUP_INCREMENT 64
+
+static int mips_next_event(unsigned long delta,
+				struct clock_event_device *evt)
+{
+	unsigned long flags;
+	unsigned int mtflags;
+	unsigned long timestamp, reference, previous;
+	unsigned long nextcomp = 0L;
+	int vpe = current_cpu_data.vpe_id;
+	int cpu = smp_processor_id();
+	local_irq_save(flags);
+	mtflags = dmt();
+
+	/*
+	 * Maintain the per-TC virtual timer
+	 * and program the per-VPE shared Count register
+	 * as appropriate here...
+	 */
+	reference = (unsigned long)read_c0_count();
+	timestamp = MAKEVALID(reference + delta);
+	/*
+	 * To really model the clock, we have to catch the case
+	 * where the current next-in-VPE timestamp is the old
+	 * timestamp for the calling CPE, but the new value is
+	 * in fact later.  In that case, we have to do a full
+	 * scan and discover the new next-in-VPE CPU id and
+	 * timestamp.
+	 */
+	previous = smtc_nexttime[vpe][cpu];
+	if (cpu == smtc_nextinvpe[vpe] && ISVALID(previous)
+	    && IS_SOONER(previous, timestamp, reference)) {
+		int i;
+		int soonest = cpu;
+
+		/*
+		 * Update timestamp array here, so that new
+		 * value gets considered along with those of
+		 * other virtual CPUs on the VPE.
+		 */
+		smtc_nexttime[vpe][cpu] = timestamp;
+		for_each_online_cpu(i) {
+			if (ISVALID(smtc_nexttime[vpe][i])
+			    && IS_SOONER(smtc_nexttime[vpe][i],
+				smtc_nexttime[vpe][soonest], reference)) {
+				    soonest = i;
+			}
+		}
+		smtc_nextinvpe[vpe] = soonest;
+		nextcomp = smtc_nexttime[vpe][soonest];
+	/*
+	 * Otherwise, we don't have to process the whole array rank,
+	 * we just have to see if the event horizon has gotten closer.
+	 */
+	} else {
+		if (!ISVALID(smtc_nexttime[vpe][smtc_nextinvpe[vpe]]) ||
+		    IS_SOONER(timestamp,
+			smtc_nexttime[vpe][smtc_nextinvpe[vpe]], reference)) {
+			    smtc_nextinvpe[vpe] = cpu;
+			    nextcomp = timestamp;
+		}
+		/*
+		 * Since next-in-VPE may me the same as the executing
+		 * virtual CPU, we update the array *after* checking
+		 * its value.
+		 */
+		smtc_nexttime[vpe][cpu] = timestamp;
+	}
+
+	/*
+	 * It may be that, in fact, we don't need to update Compare,
+	 * but if we do, we want to make sure we didn't fall into
+	 * a crack just behind Count.
+	 */
+	if (ISVALID(nextcomp)) {
+		write_c0_compare(nextcomp);
+		ehb();
+		/*
+		 * We never return an error, we just make sure
+		 * that we trigger the handlers as quickly as
+		 * we can if we fell behind.
+		 */
+		while ((nextcomp - (unsigned long)read_c0_count())
+			> (unsigned long)LONG_MAX) {
+			nextcomp += CATCHUP_INCREMENT;
+			write_c0_compare(nextcomp);
+			ehb();
+		}
+	}
+	emt(mtflags);
+	local_irq_restore(flags);
+	return 0;
+}
+
+
+void smtc_distribute_timer(int vpe)
+{
+	unsigned long flags;
+	unsigned int mtflags;
+	int cpu;
+	struct clock_event_device *cd;
+	unsigned long nextstamp = 0L;
+	unsigned long reference;
+
+
+repeat:
+	for_each_online_cpu(cpu) {
+	    /*
+	     * Find virtual CPUs within the current VPE who have
+	     * unserviced timer requests whose time is now past.
+	     */
+	    local_irq_save(flags);
+	    mtflags = dmt();
+	    if (cpu_data[cpu].vpe_id == vpe &&
+		ISVALID(smtc_nexttime[vpe][cpu])) {
+		reference = (unsigned long)read_c0_count();
+		if ((smtc_nexttime[vpe][cpu] - reference)
+			 > (unsigned long)LONG_MAX) {
+			    smtc_nexttime[vpe][cpu] = 0L;
+			    emt(mtflags);
+			    local_irq_restore(flags);
+			    /*
+			     * We don't send IPIs to ourself.
+			     */
+			    if (cpu != smp_processor_id()) {
+				smtc_send_ipi(cpu, SMTC_CLOCK_TICK, 0);
+			    } else {
+				cd = &per_cpu(mips_clockevent_device, cpu);
+				cd->event_handler(cd);
+			    }
+		} else {
+			/* Local to VPE but Valid Time not yet reached. */
+			if (!ISVALID(nextstamp) ||
+			    IS_SOONER(smtc_nexttime[vpe][cpu], nextstamp,
+			    reference)) {
+				smtc_nextinvpe[vpe] = cpu;
+				nextstamp = smtc_nexttime[vpe][cpu];
+			}
+			emt(mtflags);
+			local_irq_restore(flags);
+		}
+	    } else {
+		emt(mtflags);
+		local_irq_restore(flags);
+
+	    }
+	}
+	/* Reprogram for interrupt at next soonest timestamp for VPE */
+	if (ISVALID(nextstamp)) {
+		write_c0_compare(nextstamp);
+		ehb();
+		if ((nextstamp - (unsigned long)read_c0_count())
+			> (unsigned long)LONG_MAX)
+				goto repeat;
+	}
+}
+
+
+irqreturn_t c0_compare_interrupt(int irq, void *dev_id)
+{
+	int cpu = smp_processor_id();
+
+	/* If we're running SMTC, we've got MIPS MT and therefore MIPS32R2 */
+	handle_perf_irq(1);
+
+	if (read_c0_cause() & (1 << 30)) {
+		/* Clear Count/Compare Interrupt */
+		write_c0_compare(read_c0_compare());
+		smtc_distribute_timer(cpu_data[cpu].vpe_id);
+	}
+	return IRQ_HANDLED;
+}
+
+
+int __cpuinit mips_clockevent_init(void)
+{
+	uint64_t mips_freq = mips_hpt_frequency;
+	unsigned int cpu = smp_processor_id();
+	struct clock_event_device *cd;
+	unsigned int irq;
+	int i;
+	int j;
+
+	if (!cpu_has_counter || !mips_hpt_frequency)
+		return -ENXIO;
+	if (cpu == 0) {
+		for (i = 0; i < num_possible_cpus(); i++) {
+			smtc_nextinvpe[i] = 0;
+			for (j = 0; j < num_possible_cpus(); j++)
+				smtc_nexttime[i][j] = 0L;
+		}
+		/*
+		 * SMTC also can't have the usablility test
+		 * run by secondary TCs once Compare is in use.
+		 */
+		if (!c0_compare_int_usable())
+			return -ENXIO;
+	}
+
+	/*
+	 * With vectored interrupts things are getting platform specific.
+	 * get_c0_compare_int is a hook to allow a platform to return the
+	 * interrupt number of it's liking.
+	 */
+	irq = MIPS_CPU_IRQ_BASE + cp0_compare_irq;
+	if (get_c0_compare_int)
+		irq = get_c0_compare_int();
+
+	cd = &per_cpu(mips_clockevent_device, cpu);
+
+	cd->name		= "MIPS";
+	cd->features		= CLOCK_EVT_FEAT_ONESHOT;
+
+	/* Calculate the min / max delta */
+	cd->mult	= div_sc((unsigned long) mips_freq, NSEC_PER_SEC, 32);
+	cd->shift		= 32;
+	cd->max_delta_ns	= clockevent_delta2ns(0x7fffffff, cd);
+	cd->min_delta_ns	= clockevent_delta2ns(0x300, cd);
+
+	cd->rating		= 300;
+	cd->irq			= irq;
+	cd->cpumask		= cpumask_of_cpu(cpu);
+	cd->set_next_event	= mips_next_event;
+	cd->set_mode		= mips_set_clock_mode;
+	cd->event_handler	= mips_event_handler;
+
+	clockevents_register_device(cd);
+
+	/*
+	 * On SMTC we only want to do the data structure
+	 * initialization and IRQ setup once.
+	 */
+	if (cpu)
+		return 0;
+	/*
+	 * And we need the hwmask associated with the c0_compare
+	 * vector to be initialized.
+	 */
+	irq_hwmask[irq] = (0x100 << cp0_compare_irq);
+	if (cp0_timer_irq_installed)
+		return 0;
+
+	cp0_timer_irq_installed = 1;
+
+	setup_irq(irq, &c0_compare_irqaction);
+
+	return 0;
+}
diff --git a/arch/mips/kernel/cpu-probe.c b/arch/mips/kernel/cpu-probe.c
index 11c92dc..e621fda 100644
--- a/arch/mips/kernel/cpu-probe.c
+++ b/arch/mips/kernel/cpu-probe.c
@@ -54,14 +54,18 @@ extern void r4k_wait(void);
  * interrupt is requested" restriction in the MIPS32/MIPS64 architecture makes
  * using this version a gamble.
  */
-static void r4k_wait_irqoff(void)
+void r4k_wait_irqoff(void)
 {
 	local_irq_disable();
 	if (!need_resched())
-		__asm__("	.set	mips3		\n"
+		__asm__("	.set	push		\n"
+			"	.set	mips3		\n"
 			"	wait			\n"
-			"	.set	mips0		\n");
+			"	.set	pop		\n");
 	local_irq_enable();
+	__asm__(" 	.globl __pastwait	\n"
+		"__pastwait:			\n");
+	return;
 }
 
 /*
diff --git a/arch/mips/kernel/entry.S b/arch/mips/kernel/entry.S
index e29598a..ffa3310 100644
--- a/arch/mips/kernel/entry.S
+++ b/arch/mips/kernel/entry.S
@@ -79,11 +79,6 @@ FEXPORT(syscall_exit)
 
 FEXPORT(restore_all)			# restore full frame
 #ifdef CONFIG_MIPS_MT_SMTC
-/* Detect and execute deferred IPI "interrupts" */
-	LONG_L	s0, TI_REGS($28)
-	LONG_S	sp, TI_REGS($28)
-	jal	deferred_smtc_ipi
-	LONG_S	s0, TI_REGS($28)
 #ifdef CONFIG_MIPS_MT_SMTC_IM_BACKSTOP
 /* Re-arm any temporarily masked interrupts not explicitly "acked" */
 	mfc0	v0, CP0_TCSTATUS
@@ -112,6 +107,11 @@ FEXPORT(restore_all)			# restore full frame
 	xor	t0, t0, t3
 	mtc0	t0, CP0_TCCONTEXT
 #endif /* CONFIG_MIPS_MT_SMTC_IM_BACKSTOP */
+/* Detect and execute deferred IPI "interrupts" */
+	LONG_L	s0, TI_REGS($28)
+	LONG_S	sp, TI_REGS($28)
+	jal	deferred_smtc_ipi
+	LONG_S	s0, TI_REGS($28)
 #endif /* CONFIG_MIPS_MT_SMTC */
 	.set	noat
 	RESTORE_TEMP
diff --git a/arch/mips/kernel/genex.S b/arch/mips/kernel/genex.S
index f886dd7..01dcbe3 100644
--- a/arch/mips/kernel/genex.S
+++ b/arch/mips/kernel/genex.S
@@ -282,8 +282,8 @@ NESTED(except_vec_vi_handler, 0, sp)
 	and	t0, a0, t1
 #ifdef CONFIG_MIPS_MT_SMTC_IM_BACKSTOP
 	mfc0	t2, CP0_TCCONTEXT
-	or	t0, t0, t2
-	mtc0	t0, CP0_TCCONTEXT
+	or	t2, t0, t2
+	mtc0	t2, CP0_TCCONTEXT
 #endif /* CONFIG_MIPS_MT_SMTC_IM_BACKSTOP */
 	xor	t1, t1, t0
 	mtc0	t1, CP0_STATUS
diff --git a/arch/mips/kernel/head.S b/arch/mips/kernel/head.S
index 3613645..492a0a8 100644
--- a/arch/mips/kernel/head.S
+++ b/arch/mips/kernel/head.S
@@ -22,6 +22,7 @@
 #include <asm/irqflags.h>
 #include <asm/regdef.h>
 #include <asm/page.h>
+#include <asm/pgtable-bits.h>
 #include <asm/mipsregs.h>
 #include <asm/stackframe.h>
 
diff --git a/arch/mips/kernel/mips-mt-fpaff.c b/arch/mips/kernel/mips-mt-fpaff.c
index df4d3f2..dc9eb72 100644
--- a/arch/mips/kernel/mips-mt-fpaff.c
+++ b/arch/mips/kernel/mips-mt-fpaff.c
@@ -159,7 +159,7 @@ __setup("fpaff=", fpaff_thresh);
 /*
  * FPU Use Factor empirically derived from experiments on 34K
  */
-#define FPUSEFACTOR 333
+#define FPUSEFACTOR 2000
 
 static __init int mt_fp_affinity_init(void)
 {
diff --git a/arch/mips/kernel/process.c b/arch/mips/kernel/process.c
index ce76843..22fc19b 100644
--- a/arch/mips/kernel/process.c
+++ b/arch/mips/kernel/process.c
@@ -55,7 +55,7 @@ void __noreturn cpu_idle(void)
 	while (1) {
 		tick_nohz_stop_sched_tick(1);
 		while (!need_resched()) {
-#ifdef CONFIG_SMTC_IDLE_HOOK_DEBUG
+#ifdef CONFIG_MIPS_MT_SMTC
 			extern void smtc_idle_loop_hook(void);
 
 			smtc_idle_loop_hook();
@@ -145,19 +145,18 @@ int copy_thread(int nr, unsigned long clone_flags, unsigned long usp,
 	 */
 	p->thread.cp0_status = read_c0_status() & ~(ST0_CU2|ST0_CU1);
 	childregs->cp0_status &= ~(ST0_CU2|ST0_CU1);
+
+#ifdef CONFIG_MIPS_MT_SMTC
+	/*
+	 * SMTC restores TCStatus after Status, and the CU bits
+	 * are aliased there.
+	 */
+	childregs->cp0_tcstatus &= ~(ST0_CU2|ST0_CU1);
+#endif
 	clear_tsk_thread_flag(p, TIF_USEDFPU);
 
 #ifdef CONFIG_MIPS_MT_FPAFF
 	clear_tsk_thread_flag(p, TIF_FPUBOUND);
-
-	/*
-	 * FPU affinity support is cleaner if we track the
-	 * user-visible CPU affinity from the very beginning.
-	 * The generic cpus_allowed mask will already have
-	 * been copied from the parent before copy_thread
-	 * is invoked.
-	 */
-	p->thread.user_cpus_allowed = p->cpus_allowed;
 #endif /* CONFIG_MIPS_MT_FPAFF */
 
 	if (clone_flags & CLONE_SETTLS)
diff --git a/arch/mips/kernel/ptrace.c b/arch/mips/kernel/ptrace.c
index 35234b9..96ffc9c 100644
--- a/arch/mips/kernel/ptrace.c
+++ b/arch/mips/kernel/ptrace.c
@@ -238,7 +238,7 @@ long arch_ptrace(struct task_struct *child, long request, long addr, long data)
 		case FPC_EIR: {	/* implementation / version register */
 			unsigned int flags;
 #ifdef CONFIG_MIPS_MT_SMTC
-			unsigned int irqflags;
+			unsigned long irqflags;
 			unsigned int mtflags;
 #endif /* CONFIG_MIPS_MT_SMTC */
 
diff --git a/arch/mips/kernel/smtc.c b/arch/mips/kernel/smtc.c
index a516286..897fb2b 100644
--- a/arch/mips/kernel/smtc.c
+++ b/arch/mips/kernel/smtc.c
@@ -1,4 +1,21 @@
-/* Copyright (C) 2004 Mips Technologies, Inc */
+/*
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
+ *
+ * Copyright (C) 2004 Mips Technologies, Inc
+ * Copyright (C) 2008 Kevin D. Kissell
+ */
 
 #include <linux/clockchips.h>
 #include <linux/kernel.h>
@@ -21,7 +38,6 @@
 #include <asm/time.h>
 #include <asm/addrspace.h>
 #include <asm/smtc.h>
-#include <asm/smtc_ipi.h>
 #include <asm/smtc_proc.h>
 
 /*
@@ -58,11 +74,6 @@ unsigned long irq_hwmask[NR_IRQS];
 
 asiduse smtc_live_asid[MAX_SMTC_TLBS][MAX_SMTC_ASIDS];
 
-/*
- * Clock interrupt "latch" buffers, per "CPU"
- */
-
-static atomic_t ipi_timer_latch[NR_CPUS];
 
 /*
  * Number of InterProcessor Interrupt (IPI) message buffers to allocate
@@ -70,7 +81,7 @@ static atomic_t ipi_timer_latch[NR_CPUS];
 
 #define IPIBUF_PER_CPU 4
 
-static struct smtc_ipi_q IPIQ[NR_CPUS];
+struct smtc_ipi_q IPIQ[NR_CPUS];
 static struct smtc_ipi_q freeIPIq;
 
 
@@ -282,7 +293,7 @@ static void smtc_configure_tlb(void)
  * phys_cpu_present_map and the logical/physical mappings.
  */
 
-int __init mipsmt_build_cpu_map(int start_cpu_slot)
+int __init smtc_build_cpu_map(int start_cpu_slot)
 {
 	int i, ntcs;
 
@@ -325,7 +336,12 @@ static void smtc_tc_setup(int vpe, int tc, int cpu)
 	write_tc_c0_tcstatus((read_tc_c0_tcstatus()
 			& ~(TCSTATUS_TKSU | TCSTATUS_DA | TCSTATUS_IXMT))
 			| TCSTATUS_A);
-	write_tc_c0_tccontext(0);
+	/*
+	 * TCContext gets an offset from the base of the IPIQ array
+	 * to be used in low-level code to detect the presence of
+	 * an active IPI queue
+	 */
+	write_tc_c0_tccontext((sizeof(struct smtc_ipi_q) * cpu) << 16);
 	/* Bind tc to vpe */
 	write_tc_c0_tcbind(vpe);
 	/* In general, all TCs should have the same cpu_data indications */
@@ -336,10 +352,18 @@ static void smtc_tc_setup(int vpe, int tc, int cpu)
 		cpu_data[cpu].options &= ~MIPS_CPU_FPU;
 	cpu_data[cpu].vpe_id = vpe;
 	cpu_data[cpu].tc_id = tc;
+	/* Multi-core SMTC hasn't been tested, but be prepared */
+	cpu_data[cpu].core = (read_vpe_c0_ebase() >> 1) & 0xff;
 }
 
+/*
+ * Tweak to get Count registes in as close a sync as possible.
+ * Value seems good for 34K-class cores.
+ */
+
+#define CP0_SKEW 8
 
-void mipsmt_prepare_cpus(void)
+void smtc_prepare_cpus(int cpus)
 {
 	int i, vpe, tc, ntc, nvpe, tcpervpe[NR_CPUS], slop, cpu;
 	unsigned long flags;
@@ -363,13 +387,13 @@ void mipsmt_prepare_cpus(void)
 		IPIQ[i].head = IPIQ[i].tail = NULL;
 		spin_lock_init(&IPIQ[i].lock);
 		IPIQ[i].depth = 0;
-		atomic_set(&ipi_timer_latch[i], 0);
 	}
 
 	/* cpu_data index starts at zero */
 	cpu = 0;
 	cpu_data[cpu].vpe_id = 0;
 	cpu_data[cpu].tc_id = 0;
+	cpu_data[cpu].core = (read_c0_ebase() >> 1) & 0xff;
 	cpu++;
 
 	/* Report on boot-time options */
@@ -484,7 +508,8 @@ void mipsmt_prepare_cpus(void)
 			write_vpe_c0_compare(0);
 			/* Propagate Config7 */
 			write_vpe_c0_config7(read_c0_config7());
-			write_vpe_c0_count(read_c0_count());
+			write_vpe_c0_count(read_c0_count() + CP0_SKEW);
+			ehb();
 		}
 		/* enable multi-threading within VPE */
 		write_vpe_c0_vpecontrol(read_vpe_c0_vpecontrol() | VPECONTROL_TE);
@@ -556,7 +581,7 @@ void mipsmt_prepare_cpus(void)
 void __cpuinit smtc_boot_secondary(int cpu, struct task_struct *idle)
 {
 	extern u32 kernelsp[NR_CPUS];
-	long flags;
+	unsigned long flags;
 	int mtflags;
 
 	LOCK_MT_PRA();
@@ -585,24 +610,22 @@ void __cpuinit smtc_boot_secondary(int cpu, struct task_struct *idle)
 
 void smtc_init_secondary(void)
 {
-	/*
-	 * Start timer on secondary VPEs if necessary.
-	 * plat_timer_setup has already have been invoked by init/main
-	 * on "boot" TC.  Like per_cpu_trap_init() hack, this assumes that
-	 * SMTC init code assigns TCs consdecutively and in ascending order
-	 * to across available VPEs.
-	 */
-	if (((read_c0_tcbind() & TCBIND_CURTC) != 0) &&
-	    ((read_c0_tcbind() & TCBIND_CURVPE)
-	    != cpu_data[smp_processor_id() - 1].vpe_id)){
-		write_c0_compare(read_c0_count() + mips_hpt_frequency/HZ);
-	}
-
 	local_irq_enable();
 }
 
 void smtc_smp_finish(void)
 {
+	int cpu = smp_processor_id();
+
+	/*
+	 * Lowest-numbered CPU per VPE starts a clock tick.
+	 * Like per_cpu_trap_init() hack, this assumes that
+	 * SMTC init code assigns TCs consdecutively and
+	 * in ascending order across available VPEs.
+	 */
+	if (cpu > 0 && (cpu_data[cpu].vpe_id != cpu_data[cpu - 1].vpe_id))
+		write_c0_compare(read_c0_count() + mips_hpt_frequency/HZ);
+
 	printk("TC %d going on-line as CPU %d\n",
 		cpu_data[smp_processor_id()].tc_id, smp_processor_id());
 }
@@ -753,8 +776,10 @@ void smtc_send_ipi(int cpu, int type, unsigned int action)
 {
 	int tcstatus;
 	struct smtc_ipi *pipi;
-	long flags;
+	unsigned long flags;
 	int mtflags;
+	unsigned long tcrestart;
+	extern void r4k_wait_irqoff(void), __pastwait(void);
 
 	if (cpu == smp_processor_id()) {
 		printk("Cannot Send IPI to self!\n");
@@ -771,8 +796,6 @@ void smtc_send_ipi(int cpu, int type, unsigned int action)
 	pipi->arg = (void *)action;
 	pipi->dest = cpu;
 	if (cpu_data[cpu].vpe_id != cpu_data[smp_processor_id()].vpe_id) {
-		if (type == SMTC_CLOCK_TICK)
-			atomic_inc(&ipi_timer_latch[cpu]);
 		/* If not on same VPE, enqueue and send cross-VPE interrupt */
 		smtc_ipi_nq(&IPIQ[cpu], pipi);
 		LOCK_CORE_PRA();
@@ -800,22 +823,29 @@ void smtc_send_ipi(int cpu, int type, unsigned int action)
 
 		if ((tcstatus & TCSTATUS_IXMT) != 0) {
 			/*
-			 * Spin-waiting here can deadlock,
-			 * so we queue the message for the target TC.
+			 * If we're in the the irq-off version of the wait
+			 * loop, we need to force exit from the wait and
+			 * do a direct post of the IPI.
+			 */
+			if (cpu_wait == r4k_wait_irqoff) {
+				tcrestart = read_tc_c0_tcrestart();
+				if (tcrestart >= (unsigned long)r4k_wait_irqoff
+				    && tcrestart < (unsigned long)__pastwait) {
+					write_tc_c0_tcrestart(__pastwait);
+					tcstatus &= ~TCSTATUS_IXMT;
+					write_tc_c0_tcstatus(tcstatus);
+					goto postdirect;
+				}
+			}
+			/*
+			 * Otherwise we queue the message for the target TC
+			 * to pick up when he does a local_irq_restore()
 			 */
 			write_tc_c0_tchalt(0);
 			UNLOCK_CORE_PRA();
-			/* Try to reduce redundant timer interrupt messages */
-			if (type == SMTC_CLOCK_TICK) {
-			    if (atomic_postincrement(&ipi_timer_latch[cpu])!=0){
-				smtc_ipi_nq(&freeIPIq, pipi);
-				return;
-			    }
-			}
 			smtc_ipi_nq(&IPIQ[cpu], pipi);
 		} else {
-			if (type == SMTC_CLOCK_TICK)
-				atomic_inc(&ipi_timer_latch[cpu]);
+postdirect:
 			post_direct_ipi(cpu, pipi);
 			write_tc_c0_tchalt(0);
 			UNLOCK_CORE_PRA();
@@ -883,7 +913,7 @@ static void ipi_call_interrupt(void)
 	smp_call_function_interrupt();
 }
 
-DECLARE_PER_CPU(struct clock_event_device, smtc_dummy_clockevent_device);
+DECLARE_PER_CPU(struct clock_event_device, mips_clockevent_device);
 
 void ipi_decode(struct smtc_ipi *pipi)
 {
@@ -891,20 +921,13 @@ void ipi_decode(struct smtc_ipi *pipi)
 	struct clock_event_device *cd;
 	void *arg_copy = pipi->arg;
 	int type_copy = pipi->type;
-	int ticks;
-
 	smtc_ipi_nq(&freeIPIq, pipi);
 	switch (type_copy) {
 	case SMTC_CLOCK_TICK:
 		irq_enter();
 		kstat_this_cpu.irqs[MIPS_CPU_IRQ_BASE + 1]++;
-		cd = &per_cpu(smtc_dummy_clockevent_device, cpu);
-		ticks = atomic_read(&ipi_timer_latch[cpu]);
-		atomic_sub(ticks, &ipi_timer_latch[cpu]);
-		while (ticks) {
-			cd->event_handler(cd);
-			ticks--;
-		}
+		cd = &per_cpu(mips_clockevent_device, cpu);
+		cd->event_handler(cd);
 		irq_exit();
 		break;
 
@@ -937,24 +960,48 @@ void ipi_decode(struct smtc_ipi *pipi)
 	}
 }
 
+/*
+ * Similar to smtc_ipi_replay(), but invoked from context restore,
+ * so it reuses the current exception frame rather than set up a
+ * new one with self_ipi.
+ */
+
 void deferred_smtc_ipi(void)
 {
-	struct smtc_ipi *pipi;
-	unsigned long flags;
-/* DEBUG */
-	int q = smp_processor_id();
+	int cpu = smp_processor_id();
 
 	/*
 	 * Test is not atomic, but much faster than a dequeue,
 	 * and the vast majority of invocations will have a null queue.
+	 * If irq_disabled when this was called, then any IPIs queued
+	 * after we test last will be taken on the next irq_enable/restore.
+	 * If interrupts were enabled, then any IPIs added after the
+	 * last test will be taken directly.
 	 */
-	if (IPIQ[q].head != NULL) {
-		while((pipi = smtc_ipi_dq(&IPIQ[q])) != NULL) {
-			/* ipi_decode() should be called with interrupts off */
-			local_irq_save(flags);
+
+	while (IPIQ[cpu].head != NULL) {
+		struct smtc_ipi_q *q = &IPIQ[cpu];
+		struct smtc_ipi *pipi;
+		unsigned long flags;
+
+		/*
+		 * It may be possible we'll come in with interrupts
+		 * already enabled.
+		 */
+		local_irq_save(flags);
+
+		spin_lock(&q->lock);
+		pipi = __smtc_ipi_dq(q);
+		spin_unlock(&q->lock);
+		if (pipi != NULL)
 			ipi_decode(pipi);
-			local_irq_restore(flags);
-		}
+		/*
+		 * The use of the __raw_local restore isn't
+		 * as obviously necessary here as in smtc_ipi_replay(),
+		 * but it's more efficient, given that we're already
+		 * running down the IPI queue.
+		 */
+		__raw_local_irq_restore(flags);
 	}
 }
 
@@ -975,7 +1022,7 @@ static irqreturn_t ipi_interrupt(int irq, void *dev_idm)
 	struct smtc_ipi *pipi;
 	unsigned long tcstatus;
 	int sent;
-	long flags;
+	unsigned long flags;
 	unsigned int mtflags;
 	unsigned int vpflags;
 
@@ -1066,55 +1113,53 @@ static void setup_cross_vpe_interrupts(unsigned int nvpe)
 
 /*
  * SMTC-specific hacks invoked from elsewhere in the kernel.
- *
- * smtc_ipi_replay is called from raw_local_irq_restore which is only ever
- * called with interrupts disabled.  We do rely on interrupts being disabled
- * here because using spin_lock_irqsave()/spin_unlock_irqrestore() would
- * result in a recursive call to raw_local_irq_restore().
  */
 
-static void __smtc_ipi_replay(void)
+ /*
+  * smtc_ipi_replay is called from raw_local_irq_restore
+  */
+
+void smtc_ipi_replay(void)
 {
 	unsigned int cpu = smp_processor_id();
 
 	/*
 	 * To the extent that we've ever turned interrupts off,
 	 * we may have accumulated deferred IPIs.  This is subtle.
-	 * If we use the smtc_ipi_qdepth() macro, we'll get an
-	 * exact number - but we'll also disable interrupts
-	 * and create a window of failure where a new IPI gets
-	 * queued after we test the depth but before we re-enable
-	 * interrupts. So long as IXMT never gets set, however,
 	 * we should be OK:  If we pick up something and dispatch
 	 * it here, that's great. If we see nothing, but concurrent
 	 * with this operation, another TC sends us an IPI, IXMT
 	 * is clear, and we'll handle it as a real pseudo-interrupt
-	 * and not a pseudo-pseudo interrupt.
+	 * and not a pseudo-pseudo interrupt.  The important thing
+	 * is to do the last check for queued message *after* the
+	 * re-enabling of interrupts.
 	 */
-	if (IPIQ[cpu].depth > 0) {
-		while (1) {
-			struct smtc_ipi_q *q = &IPIQ[cpu];
-			struct smtc_ipi *pipi;
-			extern void self_ipi(struct smtc_ipi *);
-
-			spin_lock(&q->lock);
-			pipi = __smtc_ipi_dq(q);
-			spin_unlock(&q->lock);
-			if (!pipi)
-				break;
+	while (IPIQ[cpu].head != NULL) {
+		struct smtc_ipi_q *q = &IPIQ[cpu];
+		struct smtc_ipi *pipi;
+		unsigned long flags;
+
+		/*
+		 * It's just possible we'll come in with interrupts
+		 * already enabled.
+		 */
+		local_irq_save(flags);
+
+		spin_lock(&q->lock);
+		pipi = __smtc_ipi_dq(q);
+		spin_unlock(&q->lock);
+		/*
+		 ** But use a raw restore here to avoid recursion.
+		 */
+		__raw_local_irq_restore(flags);
 
+		if (pipi) {
 			self_ipi(pipi);
 			smtc_cpu_stats[cpu].selfipis++;
 		}
 	}
 }
 
-void smtc_ipi_replay(void)
-{
-	raw_local_irq_disable();
-	__smtc_ipi_replay();
-}
-
 EXPORT_SYMBOL(smtc_ipi_replay);
 
 void smtc_idle_loop_hook(void)
@@ -1193,40 +1238,13 @@ void smtc_idle_loop_hook(void)
 		}
 	}
 
-	/*
-	 * Now that we limit outstanding timer IPIs, check for hung TC
-	 */
-	for (tc = 0; tc < NR_CPUS; tc++) {
-		/* Don't check ourself - we'll dequeue IPIs just below */
-		if ((tc != smp_processor_id()) &&
-		    atomic_read(&ipi_timer_latch[tc]) > timerq_limit) {
-		    if (clock_hang_reported[tc] == 0) {
-			pdb_msg += sprintf(pdb_msg,
-				"TC %d looks hung with timer latch at %d\n",
-				tc, atomic_read(&ipi_timer_latch[tc]));
-			clock_hang_reported[tc]++;
-			}
-		}
-	}
 	emt(mtflags);
 	local_irq_restore(flags);
 	if (pdb_msg != &id_ho_db_msg[0])
 		printk("CPU%d: %s", smp_processor_id(), id_ho_db_msg);
 #endif /* CONFIG_SMTC_IDLE_HOOK_DEBUG */
 
-	/*
-	 * Replay any accumulated deferred IPIs. If "Instant Replay"
-	 * is in use, there should never be any.
-	 */
-#ifndef CONFIG_MIPS_MT_SMTC_INSTANT_REPLAY
-	{
-		unsigned long flags;
-
-		local_irq_save(flags);
-		__smtc_ipi_replay();
-		local_irq_restore(flags);
-	}
-#endif /* CONFIG_MIPS_MT_SMTC_INSTANT_REPLAY */
+	smtc_ipi_replay();
 }
 
 void smtc_soft_dump(void)
@@ -1242,10 +1260,6 @@ void smtc_soft_dump(void)
 		printk("%d: %ld\n", i, smtc_cpu_stats[i].selfipis);
 	}
 	smtc_ipi_qdump();
-	printk("Timer IPI Backlogs:\n");
-	for (i=0; i < NR_CPUS; i++) {
-		printk("%d: %d\n", i, atomic_read(&ipi_timer_latch[i]));
-	}
 	printk("%d Recoveries of \"stolen\" FPU\n",
 	       atomic_read(&smtc_fpu_recoveries));
 }
diff --git a/arch/mips/kernel/traps.c b/arch/mips/kernel/traps.c
index 5fd0cd0..b602ac6 100644
--- a/arch/mips/kernel/traps.c
+++ b/arch/mips/kernel/traps.c
@@ -825,8 +825,10 @@ static void mt_ase_fp_affinity(void)
 		if (cpus_intersects(current->cpus_allowed, mt_fpu_cpumask)) {
 			cpumask_t tmask;
 
-			cpus_and(tmask, current->thread.user_cpus_allowed,
-			         mt_fpu_cpumask);
+			current->thread.user_cpus_allowed
+				= current->cpus_allowed;
+			cpus_and(tmask, current->cpus_allowed,
+				mt_fpu_cpumask);
 			set_cpus_allowed(current, tmask);
 			set_thread_flag(TIF_FPUBOUND);
 		}
diff --git a/arch/mips/mti-malta/Makefile b/arch/mips/mti-malta/Makefile
index 3b7dd72..cef2db8 100644
--- a/arch/mips/mti-malta/Makefile
+++ b/arch/mips/mti-malta/Makefile
@@ -15,6 +15,6 @@ obj-$(CONFIG_EARLY_PRINTK)	+= malta-console.o
 obj-$(CONFIG_PCI)		+= malta-pci.o
 
 # FIXME FIXME FIXME
-obj-$(CONFIG_MIPS_MT_SMTC)	+= malta_smtc.o
+obj-$(CONFIG_MIPS_MT_SMTC)	+= malta-smtc.o
 
 EXTRA_CFLAGS += -Werror
diff --git a/arch/mips/mti-malta/malta-smtc.c b/arch/mips/mti-malta/malta-smtc.c
index 5ea705e..f84a46a 100644
--- a/arch/mips/mti-malta/malta-smtc.c
+++ b/arch/mips/mti-malta/malta-smtc.c
@@ -84,12 +84,17 @@ static void msmtc_cpus_done(void)
 
 static void __init msmtc_smp_setup(void)
 {
-	mipsmt_build_cpu_map(0);
+	/*
+	 * we won't get the definitive value until
+	 * we've run smtc_prepare_cpus later, but
+	 * we would appear to need an upper bound now.
+	 */
+	smp_num_siblings = smtc_build_cpu_map(0);
 }
 
 static void __init msmtc_prepare_cpus(unsigned int max_cpus)
 {
-	mipsmt_prepare_cpus();
+	smtc_prepare_cpus(max_cpus);
 }
 
 struct plat_smp_ops msmtc_smp_ops = {
diff --git a/arch/mips/sibyte/swarm/Makefile b/arch/mips/sibyte/swarm/Makefile
index f18ba92..7b45f19 100644
--- a/arch/mips/sibyte/swarm/Makefile
+++ b/arch/mips/sibyte/swarm/Makefile
@@ -1,3 +1,4 @@
-obj-y				:= setup.o rtc_xicor1241.o rtc_m41t81.o
+obj-y				:= platform.o setup.o rtc_xicor1241.o \
+				   rtc_m41t81.o
 
 obj-$(CONFIG_I2C_BOARDINFO)	+= swarm-i2c.o
diff --git a/arch/mips/sibyte/swarm/platform.c b/arch/mips/sibyte/swarm/platform.c
new file mode 100644
index 0000000..54847fe
--- /dev/null
+++ b/arch/mips/sibyte/swarm/platform.c
@@ -0,0 +1,85 @@
+#include <linux/err.h>
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/io.h>
+#include <linux/platform_device.h>
+#include <linux/ata_platform.h>
+
+#include <asm/sibyte/board.h>
+#include <asm/sibyte/sb1250_genbus.h>
+#include <asm/sibyte/sb1250_regs.h>
+
+#if defined(CONFIG_SIBYTE_SWARM) || defined(CONFIG_SIBYTE_LITTLESUR)
+
+#define DRV_NAME	"pata-swarm"
+
+#define SWARM_IDE_SHIFT	5
+#define SWARM_IDE_BASE	0x1f0
+#define SWARM_IDE_CTRL	0x3f6
+
+static struct resource swarm_pata_resource[] = {
+	{
+		.name	= "Swarm GenBus IDE",
+		.flags	= IORESOURCE_MEM,
+	}, {
+		.name	= "Swarm GenBus IDE",
+		.flags	= IORESOURCE_MEM,
+	}, {
+		.name	= "Swarm GenBus IDE",
+		.flags	= IORESOURCE_IRQ,
+		.start	= K_INT_GB_IDE,
+		.end	= K_INT_GB_IDE,
+	},
+};
+
+static struct pata_platform_info pata_platform_data = {
+	.ioport_shift	= SWARM_IDE_SHIFT,
+};
+
+static struct platform_device swarm_pata_device = {
+	.name		= "pata_platform",
+	.id		= -1,
+	.resource	= swarm_pata_resource,
+	.num_resources	= ARRAY_SIZE(swarm_pata_resource),
+	.dev  = {
+		.platform_data		= &pata_platform_data,
+		.coherent_dma_mask	= ~0,	/* grumble */
+	},
+};
+
+static int __init swarm_pata_init(void)
+{
+	u8 __iomem *base;
+	phys_t offset, size;
+	struct resource *r;
+
+	if (!SIBYTE_HAVE_IDE)
+		return -ENODEV;
+
+	base = ioremap(A_IO_EXT_BASE, 0x800);
+	offset = __raw_readq(base + R_IO_EXT_REG(R_IO_EXT_START_ADDR, IDE_CS));
+	size = __raw_readq(base + R_IO_EXT_REG(R_IO_EXT_MULT_SIZE, IDE_CS));
+	iounmap(base);
+
+	offset = G_IO_START_ADDR(offset) << S_IO_ADDRBASE;
+	size = (G_IO_MULT_SIZE(size) + 1) << S_IO_REGSIZE;
+	if (offset < A_PHYS_GENBUS || offset >= A_PHYS_GENBUS_END) {
+		pr_info(DRV_NAME ": PATA interface at GenBus disabled\n");
+
+		return -EBUSY;
+	}
+
+	pr_info(DRV_NAME ": PATA interface at GenBus slot %i\n", IDE_CS);
+
+	r = swarm_pata_resource;
+	r[0].start = offset + (SWARM_IDE_BASE << SWARM_IDE_SHIFT);
+	r[0].end   = offset + ((SWARM_IDE_BASE + 8) << SWARM_IDE_SHIFT) - 1;
+	r[1].start = offset + (SWARM_IDE_CTRL << SWARM_IDE_SHIFT);
+	r[1].end   = offset + ((SWARM_IDE_CTRL + 1) << SWARM_IDE_SHIFT) - 1;
+
+	return platform_device_register(&swarm_pata_device);
+}
+
+device_initcall(swarm_pata_init);
+
+#endif /* defined(CONFIG_SIBYTE_SWARM) || defined(CONFIG_SIBYTE_LITTLESUR) */
diff --git a/arch/mn10300/kernel/irq.c b/arch/mn10300/kernel/irq.c
index 761c434..56c64cc 100644
--- a/arch/mn10300/kernel/irq.c
+++ b/arch/mn10300/kernel/irq.c
@@ -20,22 +20,8 @@ EXPORT_SYMBOL(__mn10300_irq_enabled_epsw);
 atomic_t irq_err_count;
 
 /*
- * MN10300 INTC controller operations
+ * MN10300 interrupt controller operations
  */
-static void mn10300_cpupic_disable(unsigned int irq)
-{
-	u16 tmp = GxICR(irq);
-	GxICR(irq) = (tmp & GxICR_LEVEL) | GxICR_DETECT;
-	tmp = GxICR(irq);
-}
-
-static void mn10300_cpupic_enable(unsigned int irq)
-{
-	u16 tmp = GxICR(irq);
-	GxICR(irq) = (tmp & GxICR_LEVEL) | GxICR_ENABLE;
-	tmp = GxICR(irq);
-}
-
 static void mn10300_cpupic_ack(unsigned int irq)
 {
 	u16 tmp;
@@ -60,26 +46,54 @@ static void mn10300_cpupic_mask_ack(unsigned int irq)
 static void mn10300_cpupic_unmask(unsigned int irq)
 {
 	u16 tmp = GxICR(irq);
-	GxICR(irq) = (tmp & GxICR_LEVEL) | GxICR_ENABLE | GxICR_DETECT;
+	GxICR(irq) = (tmp & GxICR_LEVEL) | GxICR_ENABLE;
 	tmp = GxICR(irq);
 }
 
-static void mn10300_cpupic_end(unsigned int irq)
+static void mn10300_cpupic_unmask_clear(unsigned int irq)
 {
+	/* the MN10300 PIC latches its interrupt request bit, even after the
+	 * device has ceased to assert its interrupt line and the interrupt
+	 * channel has been disabled in the PIC, so for level-triggered
+	 * interrupts we need to clear the request bit when we re-enable */
 	u16 tmp = GxICR(irq);
-	GxICR(irq) = (tmp & GxICR_LEVEL) | GxICR_ENABLE;
+	GxICR(irq) = (tmp & GxICR_LEVEL) | GxICR_ENABLE | GxICR_DETECT;
 	tmp = GxICR(irq);
 }
 
-static struct irq_chip mn10300_cpu_pic = {
-	.name		= "cpu",
-	.disable	= mn10300_cpupic_disable,
-	.enable		= mn10300_cpupic_enable,
+/*
+ * MN10300 PIC level-triggered IRQ handling.
+ *
+ * The PIC has no 'ACK' function per se.  It is possible to clear individual
+ * channel latches, but each latch relatches whether or not the channel is
+ * masked, so we need to clear the latch when we unmask the channel.
+ *
+ * Also for this reason, we don't supply an ack() op (it's unused anyway if
+ * mask_ack() is provided), and mask_ack() just masks.
+ */
+static struct irq_chip mn10300_cpu_pic_level = {
+	.name		= "cpu_l",
+	.disable	= mn10300_cpupic_mask,
+	.enable		= mn10300_cpupic_unmask_clear,
+	.ack		= NULL,
+	.mask		= mn10300_cpupic_mask,
+	.mask_ack	= mn10300_cpupic_mask,
+	.unmask		= mn10300_cpupic_unmask_clear,
+};
+
+/*
+ * MN10300 PIC edge-triggered IRQ handling.
+ *
+ * We use the latch clearing function of the PIC as the 'ACK' function.
+ */
+static struct irq_chip mn10300_cpu_pic_edge = {
+	.name		= "cpu_e",
+	.disable	= mn10300_cpupic_mask,
+	.enable		= mn10300_cpupic_unmask,
 	.ack		= mn10300_cpupic_ack,
 	.mask		= mn10300_cpupic_mask,
 	.mask_ack	= mn10300_cpupic_mask_ack,
 	.unmask		= mn10300_cpupic_unmask,
-	.end		= mn10300_cpupic_end,
 };
 
 /*
@@ -114,7 +128,8 @@ void set_intr_level(int irq, u16 level)
  */
 void set_intr_postackable(int irq)
 {
-	set_irq_handler(irq, handle_level_irq);
+	set_irq_chip_and_handler(irq, &mn10300_cpu_pic_level,
+				 handle_level_irq);
 }
 
 /*
@@ -126,8 +141,12 @@ void __init init_IRQ(void)
 
 	for (irq = 0; irq < NR_IRQS; irq++)
 		if (irq_desc[irq].chip == &no_irq_type)
-			set_irq_chip_and_handler(irq, &mn10300_cpu_pic,
-						 handle_edge_irq);
+			/* due to the PIC latching interrupt requests, even
+			 * when the IRQ is disabled, IRQ_PENDING is superfluous
+			 * and we can use handle_level_irq() for edge-triggered
+			 * interrupts */
+			set_irq_chip_and_handler(irq, &mn10300_cpu_pic_edge,
+						 handle_level_irq);
 	unit_init_IRQ();
 }
 
diff --git a/arch/mn10300/unit-asb2303/unit-init.c b/arch/mn10300/unit-asb2303/unit-init.c
index 14b2c81..70e8cb4 100644
--- a/arch/mn10300/unit-asb2303/unit-init.c
+++ b/arch/mn10300/unit-asb2303/unit-init.c
@@ -51,7 +51,7 @@ void __init unit_init_IRQ(void)
 		switch (GET_XIRQ_TRIGGER(extnum)) {
 		case XIRQ_TRIGGER_HILEVEL:
 		case XIRQ_TRIGGER_LOWLEVEL:
-			set_irq_handler(XIRQ2IRQ(extnum), handle_level_irq);
+			set_intr_postackable(XIRQ2IRQ(extnum));
 			break;
 		default:
 			break;
diff --git a/arch/mn10300/unit-asb2305/unit-init.c b/arch/mn10300/unit-asb2305/unit-init.c
index 6a35241..72812a9 100644
--- a/arch/mn10300/unit-asb2305/unit-init.c
+++ b/arch/mn10300/unit-asb2305/unit-init.c
@@ -52,7 +52,7 @@ void __init unit_init_IRQ(void)
 		switch (GET_XIRQ_TRIGGER(extnum)) {
 		case XIRQ_TRIGGER_HILEVEL:
 		case XIRQ_TRIGGER_LOWLEVEL:
-			set_irq_handler(XIRQ2IRQ(extnum), handle_level_irq);
+			set_intr_postackable(XIRQ2IRQ(extnum));
 			break;
 		default:
 			break;
diff --git a/arch/powerpc/boot/dts/holly.dts b/arch/powerpc/boot/dts/holly.dts
index f87fe7b..c6e11eb 100644
--- a/arch/powerpc/boot/dts/holly.dts
+++ b/arch/powerpc/boot/dts/holly.dts
@@ -133,61 +133,61 @@
 			reg = <0x00007400 0x00000400>;
 			big-endian;
 		};
+	};
 
-		pci@1000 {
-			device_type = "pci";
-			compatible = "tsi109-pci", "tsi108-pci";
-			#interrupt-cells = <1>;
-			#size-cells = <2>;
-			#address-cells = <3>;
-			reg = <0x00001000 0x00001000>;
-			bus-range = <0x0 0x0>;
-			/*----------------------------------------------------+
-			| PCI memory range.
-			| 01 denotes I/O space
-			| 02 denotes 32-bit memory space
-			+----------------------------------------------------*/
-			ranges = <0x02000000 0x00000000 0x40000000 0x40000000 0x00000000 0x10000000
-				  0x01000000 0x00000000 0x00000000 0x7e000000 0x00000000 0x00010000>;
-			clock-frequency = <133333332>;
-			interrupt-parent = <&MPIC>;
+	pci@c0001000 {
+		device_type = "pci";
+		compatible = "tsi109-pci", "tsi108-pci";
+		#interrupt-cells = <1>;
+		#size-cells = <2>;
+		#address-cells = <3>;
+		reg = <0xc0001000 0x00001000>;
+		bus-range = <0x0 0x0>;
+		/*----------------------------------------------------+
+		| PCI memory range.
+		| 01 denotes I/O space
+		| 02 denotes 32-bit memory space
+		+----------------------------------------------------*/
+		ranges = <0x02000000 0x00000000 0x40000000 0x40000000 0x00000000 0x10000000
+			  0x01000000 0x00000000 0x00000000 0x7e000000 0x00000000 0x00010000>;
+		clock-frequency = <133333332>;
+		interrupt-parent = <&MPIC>;
+		interrupts = <0x17 0x2>;
+		interrupt-map-mask = <0xf800 0x0 0x0 0x7>;
+		/*----------------------------------------------------+
+		| The INTA, INTB, INTC, INTD are shared.
+		+----------------------------------------------------*/
+		interrupt-map = <
+			0x800 0x0 0x0 0x1 &RT0 0x24 0x0
+			0x800 0x0 0x0 0x2 &RT0 0x25 0x0
+			0x800 0x0 0x0 0x3 &RT0 0x26 0x0
+			0x800 0x0 0x0 0x4 &RT0 0x27 0x0
+
+			0x1000 0x0 0x0 0x1 &RT0 0x25 0x0
+			0x1000 0x0 0x0 0x2 &RT0 0x26 0x0
+			0x1000 0x0 0x0 0x3 &RT0 0x27 0x0
+			0x1000 0x0 0x0 0x4 &RT0 0x24 0x0
+
+			0x1800 0x0 0x0 0x1 &RT0 0x26 0x0
+			0x1800 0x0 0x0 0x2 &RT0 0x27 0x0
+			0x1800 0x0 0x0 0x3 &RT0 0x24 0x0
+			0x1800 0x0 0x0 0x4 &RT0 0x25 0x0
+
+			0x2000 0x0 0x0 0x1 &RT0 0x27 0x0
+			0x2000 0x0 0x0 0x2 &RT0 0x24 0x0
+			0x2000 0x0 0x0 0x3 &RT0 0x25 0x0
+			0x2000 0x0 0x0 0x4 &RT0 0x26 0x0
+			>;
+
+		RT0: router@1180 {
+			device_type = "pic-router";
+			interrupt-controller;
+			big-endian;
+			clock-frequency = <0>;
+			#address-cells = <0>;
+			#interrupt-cells = <2>;
 			interrupts = <0x17 0x2>;
-			interrupt-map-mask = <0xf800 0x0 0x0 0x7>;
-			/*----------------------------------------------------+
-			| The INTA, INTB, INTC, INTD are shared.
-			+----------------------------------------------------*/
-			interrupt-map = <
-				0x800 0x0 0x0 0x1 &RT0 0x24 0x0
-				0x800 0x0 0x0 0x2 &RT0 0x25 0x0
-				0x800 0x0 0x0 0x3 &RT0 0x26 0x0
-				0x800 0x0 0x0 0x4 &RT0 0x27 0x0
-
-				0x1000 0x0 0x0 0x1 &RT0 0x25 0x0
-				0x1000 0x0 0x0 0x2 &RT0 0x26 0x0
-				0x1000 0x0 0x0 0x3 &RT0 0x27 0x0
-				0x1000 0x0 0x0 0x4 &RT0 0x24 0x0
-
-				0x1800 0x0 0x0 0x1 &RT0 0x26 0x0
-				0x1800 0x0 0x0 0x2 &RT0 0x27 0x0
-				0x1800 0x0 0x0 0x3 &RT0 0x24 0x0
-				0x1800 0x0 0x0 0x4 &RT0 0x25 0x0
-
-				0x2000 0x0 0x0 0x1 &RT0 0x27 0x0
-				0x2000 0x0 0x0 0x2 &RT0 0x24 0x0
-				0x2000 0x0 0x0 0x3 &RT0 0x25 0x0
-				0x2000 0x0 0x0 0x4 &RT0 0x26 0x0
-				>;
-
-			RT0: router@1180 {
- 				device_type = "pic-router";
- 				interrupt-controller;
- 				big-endian;
- 				clock-frequency = <0>;
- 				#address-cells = <0>;
- 				#interrupt-cells = <2>;
- 				interrupts = <0x17 0x2>;
-				interrupt-parent = <&MPIC>;
-			};
+			interrupt-parent = <&MPIC>;
 		};
 	};
 
diff --git a/arch/powerpc/kernel/idle.c b/arch/powerpc/kernel/idle.c
index d308a9f..31982d0 100644
--- a/arch/powerpc/kernel/idle.c
+++ b/arch/powerpc/kernel/idle.c
@@ -34,11 +34,7 @@
 #include <asm/smp.h>
 
 #ifdef CONFIG_HOTPLUG_CPU
-/* this is used for software suspend, and that shuts down
- * CPUs even while the system is still booting... */
-#define cpu_should_die()	(cpu_is_offline(smp_processor_id()) && \
-				   (system_state == SYSTEM_RUNNING     \
-				 || system_state == SYSTEM_BOOTING))
+#define cpu_should_die()	cpu_is_offline(smp_processor_id())
 #else
 #define cpu_should_die()	0
 #endif
diff --git a/arch/powerpc/platforms/fsl_uli1575.c b/arch/powerpc/platforms/fsl_uli1575.c
index ef74a07..8c61996 100644
--- a/arch/powerpc/platforms/fsl_uli1575.c
+++ b/arch/powerpc/platforms/fsl_uli1575.c
@@ -219,11 +219,21 @@ static void __devinit quirk_final_uli5249(struct pci_dev *dev)
 	int i;
 	u8 *dummy;
 	struct pci_bus *bus = dev->bus;
+	resource_size_t end = 0;
+
+	for (i = PCI_BRIDGE_RESOURCES; i < PCI_BRIDGE_RESOURCES+3; i++) {
+		unsigned long flags = pci_resource_flags(dev, i);
+		if ((flags & (IORESOURCE_MEM|IORESOURCE_PREFETCH)) == IORESOURCE_MEM)
+			end = pci_resource_end(dev, i);
+	}
 
 	for (i = 0; i < PCI_BUS_NUM_RESOURCES; i++) {
 		if ((bus->resource[i]) &&
 			(bus->resource[i]->flags & IORESOURCE_MEM)) {
-			dummy = ioremap(bus->resource[i]->end - 3, 0x4);
+			if (bus->resource[i]->end == end)
+				dummy = ioremap(bus->resource[i]->start, 0x4);
+			else
+				dummy = ioremap(bus->resource[i]->end - 3, 0x4);
 			if (dummy) {
 				in_8(dummy);
 				iounmap(dummy);
diff --git a/arch/s390/kernel/time.c b/arch/s390/kernel/time.c
index ca114fe..06acb1a 100644
--- a/arch/s390/kernel/time.c
+++ b/arch/s390/kernel/time.c
@@ -169,6 +169,8 @@ void init_cpu_timer(void)
 
 static void clock_comparator_interrupt(__u16 code)
 {
+	if (S390_lowcore.clock_comparator == -1ULL)
+		set_clock_comparator(S390_lowcore.clock_comparator);
 }
 
 static void etr_timing_alert(struct etr_irq_parm *);
diff --git a/arch/s390/lib/delay.c b/arch/s390/lib/delay.c
index fc6ab60..0953cee 100644
--- a/arch/s390/lib/delay.c
+++ b/arch/s390/lib/delay.c
@@ -1,14 +1,9 @@
 /*
- *  arch/s390/lib/delay.c
  *    Precise Delay Loops for S390
  *
- *  S390 version
- *    Copyright (C) 1999 IBM Deutschland Entwicklung GmbH, IBM Corporation
- *    Author(s): Martin Schwidefsky (schwidefsky@de.ibm.com),
- *
- *  Derived from "arch/i386/lib/delay.c"
- *    Copyright (C) 1993 Linus Torvalds
- *    Copyright (C) 1997 Martin Mares <mj@atrey.karlin.mff.cuni.cz>
+ *    Copyright IBM Corp. 1999,2008
+ *    Author(s): Martin Schwidefsky <schwidefsky@de.ibm.com>,
+ *		 Heiko Carstens <heiko.carstens@de.ibm.com>,
  */
 
 #include <linux/sched.h>
@@ -29,30 +24,31 @@ void __delay(unsigned long loops)
 	asm volatile("0: brct %0,0b" : : "d" ((loops/2) + 1));
 }
 
-/*
- * Waits for 'usecs' microseconds using the TOD clock comparator.
- */
-void __udelay(unsigned long usecs)
+static void __udelay_disabled(unsigned long usecs)
 {
-	u64 end, time, old_cc = 0;
-	unsigned long flags, cr0, mask, dummy;
-	int irq_context;
+	unsigned long mask, cr0, cr0_saved;
+	u64 clock_saved;
 
-	irq_context = in_interrupt();
-	if (!irq_context)
-		local_bh_disable();
-	local_irq_save(flags);
-	if (raw_irqs_disabled_flags(flags)) {
-		old_cc = local_tick_disable();
-		S390_lowcore.clock_comparator = -1ULL;
-		__ctl_store(cr0, 0, 0);
-		dummy = (cr0 & 0xffff00e0) | 0x00000800;
-		__ctl_load(dummy , 0, 0);
-		mask = psw_kernel_bits | PSW_MASK_WAIT | PSW_MASK_EXT;
-	} else
-		mask = psw_kernel_bits | PSW_MASK_WAIT |
-			PSW_MASK_EXT | PSW_MASK_IO;
+	clock_saved = local_tick_disable();
+	set_clock_comparator(get_clock() + ((u64) usecs << 12));
+	__ctl_store(cr0_saved, 0, 0);
+	cr0 = (cr0_saved & 0xffff00e0) | 0x00000800;
+	__ctl_load(cr0 , 0, 0);
+	mask = psw_kernel_bits | PSW_MASK_WAIT | PSW_MASK_EXT;
+	trace_hardirqs_on();
+	__load_psw_mask(mask);
+	local_irq_disable();
+	__ctl_load(cr0_saved, 0, 0);
+	local_tick_enable(clock_saved);
+	set_clock_comparator(S390_lowcore.clock_comparator);
+}
 
+static void __udelay_enabled(unsigned long usecs)
+{
+	unsigned long mask;
+	u64 end, time;
+
+	mask = psw_kernel_bits | PSW_MASK_WAIT | PSW_MASK_EXT | PSW_MASK_IO;
 	end = get_clock() + ((u64) usecs << 12);
 	do {
 		time = end < S390_lowcore.clock_comparator ?
@@ -62,13 +58,37 @@ void __udelay(unsigned long usecs)
 		__load_psw_mask(mask);
 		local_irq_disable();
 	} while (get_clock() < end);
+	set_clock_comparator(S390_lowcore.clock_comparator);
+}
 
-	if (raw_irqs_disabled_flags(flags)) {
-		__ctl_load(cr0, 0, 0);
-		local_tick_enable(old_cc);
+/*
+ * Waits for 'usecs' microseconds using the TOD clock comparator.
+ */
+void __udelay(unsigned long usecs)
+{
+	unsigned long flags;
+
+	preempt_disable();
+	local_irq_save(flags);
+	if (in_irq()) {
+		__udelay_disabled(usecs);
+		goto out;
+	}
+	if (in_softirq()) {
+		if (raw_irqs_disabled_flags(flags))
+			__udelay_disabled(usecs);
+		else
+			__udelay_enabled(usecs);
+		goto out;
 	}
-	if (!irq_context)
+	if (raw_irqs_disabled_flags(flags)) {
+		local_bh_disable();
+		__udelay_disabled(usecs);
 		_local_bh_enable();
-	set_clock_comparator(S390_lowcore.clock_comparator);
+		goto out;
+	}
+	__udelay_enabled(usecs);
+out:
 	local_irq_restore(flags);
+	preempt_enable();
 }
diff --git a/arch/x86/boot/compressed/relocs.c b/arch/x86/boot/compressed/relocs.c
index a1310c5..857e492 100644
--- a/arch/x86/boot/compressed/relocs.c
+++ b/arch/x86/boot/compressed/relocs.c
@@ -492,7 +492,7 @@ static void walk_relocs(void (*visit)(Elf32_Rel *rel, Elf32_Sym *sym))
 			continue;
 		}
 		sh_symtab = sec_symtab->symtab;
-		sym_strtab = sec->link->strtab;
+		sym_strtab = sec_symtab->link->strtab;
 		for (j = 0; j < sec->shdr.sh_size/sizeof(Elf32_Rel); j++) {
 			Elf32_Rel *rel;
 			Elf32_Sym *sym;
diff --git a/arch/x86/kernel/acpi/boot.c b/arch/x86/kernel/acpi/boot.c
index bfd10fd..c102af8 100644
--- a/arch/x86/kernel/acpi/boot.c
+++ b/arch/x86/kernel/acpi/boot.c
@@ -1605,6 +1605,14 @@ static struct dmi_system_id __initdata acpi_dmi_table[] = {
 	 */
 	{
 	 .callback = dmi_ignore_irq0_timer_override,
+	 .ident = "HP nx6115 laptop",
+	 .matches = {
+		     DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"),
+		     DMI_MATCH(DMI_PRODUCT_NAME, "HP Compaq nx6115"),
+		     },
+	 },
+	{
+	 .callback = dmi_ignore_irq0_timer_override,
 	 .ident = "HP NX6125 laptop",
 	 .matches = {
 		     DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"),
@@ -1619,6 +1627,14 @@ static struct dmi_system_id __initdata acpi_dmi_table[] = {
 		     DMI_MATCH(DMI_PRODUCT_NAME, "HP Compaq nx6325"),
 		     },
 	 },
+	{
+	 .callback = dmi_ignore_irq0_timer_override,
+	 .ident = "HP 6715b laptop",
+	 .matches = {
+		     DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"),
+		     DMI_MATCH(DMI_PRODUCT_NAME, "HP Compaq 6715b"),
+		     },
+	 },
 	{}
 };
 
diff --git a/arch/x86/kernel/cpu/mtrr/main.c b/arch/x86/kernel/cpu/mtrr/main.c
index b117d7f..885c826 100644
--- a/arch/x86/kernel/cpu/mtrr/main.c
+++ b/arch/x86/kernel/cpu/mtrr/main.c
@@ -834,7 +834,7 @@ static int __init enable_mtrr_cleanup_setup(char *str)
 		enable_mtrr_cleanup = 1;
 	return 0;
 }
-early_param("enble_mtrr_cleanup", enable_mtrr_cleanup_setup);
+early_param("enable_mtrr_cleanup", enable_mtrr_cleanup_setup);
 
 struct var_mtrr_state {
 	unsigned long	range_startk;
diff --git a/arch/x86/kernel/kgdb.c b/arch/x86/kernel/kgdb.c
index 8282a21..10435a1 100644
--- a/arch/x86/kernel/kgdb.c
+++ b/arch/x86/kernel/kgdb.c
@@ -455,12 +455,7 @@ static int __kgdb_notify(struct die_args *args, unsigned long cmd)
 		return NOTIFY_DONE;
 
 	case DIE_NMI_IPI:
-		if (atomic_read(&kgdb_active) != -1) {
-			/* KGDB CPU roundup */
-			kgdb_nmicallback(raw_smp_processor_id(), regs);
-			was_in_debug_nmi[raw_smp_processor_id()] = 1;
-			touch_nmi_watchdog();
-		}
+		/* Just ignore, we will handle the roundup on DIE_NMI. */
 		return NOTIFY_DONE;
 
 	case DIE_NMIUNKNOWN:
diff --git a/arch/x86/kernel/pci-gart_64.c b/arch/x86/kernel/pci-gart_64.c
index 49285f8..be33a54 100644
--- a/arch/x86/kernel/pci-gart_64.c
+++ b/arch/x86/kernel/pci-gart_64.c
@@ -626,7 +626,6 @@ static __init int init_k8_gatt(struct agp_kern_info *info)
 	struct pci_dev *dev;
 	void *gatt;
 	int i, error;
-	unsigned long start_pfn, end_pfn;
 
 	printk(KERN_INFO "PCI-DMA: Disabling AGP.\n");
 	aper_size = aper_base = info->aper_size = 0;
@@ -672,12 +671,6 @@ static __init int init_k8_gatt(struct agp_kern_info *info)
 	printk(KERN_INFO "PCI-DMA: aperture base @ %x size %u KB\n",
 	       aper_base, aper_size>>10);
 
-	/* need to map that range */
-	end_pfn = (aper_base>>PAGE_SHIFT) + (aper_size>>PAGE_SHIFT);
-	if (end_pfn > max_low_pfn_mapped) {
-		start_pfn = (aper_base>>PAGE_SHIFT);
-		init_memory_mapping(start_pfn<<PAGE_SHIFT, end_pfn<<PAGE_SHIFT);
-	}
 	return 0;
 
  nommu:
@@ -727,7 +720,8 @@ void __init gart_iommu_init(void)
 {
 	struct agp_kern_info info;
 	unsigned long iommu_start;
-	unsigned long aper_size;
+	unsigned long aper_base, aper_size;
+	unsigned long start_pfn, end_pfn;
 	unsigned long scratch;
 	long i;
 
@@ -765,8 +759,16 @@ void __init gart_iommu_init(void)
 		return;
 	}
 
+	/* need to map that range */
+	aper_size = info.aper_size << 20;
+	aper_base = info.aper_base;
+	end_pfn = (aper_base>>PAGE_SHIFT) + (aper_size>>PAGE_SHIFT);
+	if (end_pfn > max_low_pfn_mapped) {
+		start_pfn = (aper_base>>PAGE_SHIFT);
+		init_memory_mapping(start_pfn<<PAGE_SHIFT, end_pfn<<PAGE_SHIFT);
+	}
+
 	printk(KERN_INFO "PCI-DMA: using GART IOMMU.\n");
-	aper_size = info.aper_size * 1024 * 1024;
 	iommu_size = check_iommu_size(info.aper_base, aper_size);
 	iommu_pages = iommu_size >> PAGE_SHIFT;
 
diff --git a/arch/x86/kernel/vmi_32.c b/arch/x86/kernel/vmi_32.c
index 6ca515d..edfb09f 100644
--- a/arch/x86/kernel/vmi_32.c
+++ b/arch/x86/kernel/vmi_32.c
@@ -235,7 +235,7 @@ static void vmi_write_ldt_entry(struct desc_struct *dt, int entry,
 				const void *desc)
 {
 	u32 *ldt_entry = (u32 *)desc;
-	vmi_ops.write_idt_entry(dt, entry, ldt_entry[0], ldt_entry[1]);
+	vmi_ops.write_ldt_entry(dt, entry, ldt_entry[0], ldt_entry[1]);
 }
 
 static void vmi_load_sp0(struct tss_struct *tss,
diff --git a/drivers/accessibility/braille/braille_console.c b/drivers/accessibility/braille/braille_console.c
index 0a5f6b2..d672cfe 100644
--- a/drivers/accessibility/braille/braille_console.c
+++ b/drivers/accessibility/braille/braille_console.c
@@ -376,6 +376,8 @@ int braille_register_console(struct console *console, int index,
 	console->flags |= CON_ENABLED;
 	console->index = index;
 	braille_co = console;
+	register_keyboard_notifier(&keyboard_notifier_block);
+	register_vt_notifier(&vt_notifier_block);
 	return 0;
 }
 
@@ -383,15 +385,8 @@ int braille_unregister_console(struct console *console)
 {
 	if (braille_co != console)
 		return -EINVAL;
+	unregister_keyboard_notifier(&keyboard_notifier_block);
+	unregister_vt_notifier(&vt_notifier_block);
 	braille_co = NULL;
 	return 0;
 }
-
-static int __init braille_init(void)
-{
-	register_keyboard_notifier(&keyboard_notifier_block);
-	register_vt_notifier(&vt_notifier_block);
-	return 0;
-}
-
-console_initcall(braille_init);
diff --git a/drivers/acpi/glue.c b/drivers/acpi/glue.c
index 0841095..8dd3336 100644
--- a/drivers/acpi/glue.c
+++ b/drivers/acpi/glue.c
@@ -165,8 +165,11 @@ static int acpi_bind_one(struct device *dev, acpi_handle handle)
 				"firmware_node");
 		ret = sysfs_create_link(&acpi_dev->dev.kobj, &dev->kobj,
 				"physical_node");
-		if (acpi_dev->wakeup.flags.valid)
+		if (acpi_dev->wakeup.flags.valid) {
 			device_set_wakeup_capable(dev, true);
+			device_set_wakeup_enable(dev,
+						acpi_dev->wakeup.state.enabled);
+		}
 	}
 
 	return 0;
diff --git a/drivers/acpi/sleep/proc.c b/drivers/acpi/sleep/proc.c
index 4ebbba2..bf5b04d 100644
--- a/drivers/acpi/sleep/proc.c
+++ b/drivers/acpi/sleep/proc.c
@@ -377,6 +377,14 @@ acpi_system_wakeup_device_seq_show(struct seq_file *seq, void *offset)
 	return 0;
 }
 
+static void physical_device_enable_wakeup(struct acpi_device *adev)
+{
+	struct device *dev = acpi_get_physical_device(adev->handle);
+
+	if (dev && device_can_wakeup(dev))
+		device_set_wakeup_enable(dev, adev->wakeup.state.enabled);
+}
+
 static ssize_t
 acpi_system_write_wakeup_device(struct file *file,
 				const char __user * buffer,
@@ -411,6 +419,7 @@ acpi_system_write_wakeup_device(struct file *file,
 		}
 	}
 	if (found_dev) {
+		physical_device_enable_wakeup(found_dev);
 		list_for_each_safe(node, next, &acpi_wakeup_device_list) {
 			struct acpi_device *dev = container_of(node,
 							       struct
@@ -428,6 +437,7 @@ acpi_system_write_wakeup_device(struct file *file,
 				       dev->pnp.bus_id, found_dev->pnp.bus_id);
 				dev->wakeup.state.enabled =
 				    found_dev->wakeup.state.enabled;
+				physical_device_enable_wakeup(dev);
 			}
 		}
 	}
diff --git a/drivers/bluetooth/bpa10x.c b/drivers/bluetooth/bpa10x.c
index 1e55a65..32f3a8e 100644
--- a/drivers/bluetooth/bpa10x.c
+++ b/drivers/bluetooth/bpa10x.c
@@ -256,7 +256,6 @@ static inline int bpa10x_submit_intr_urb(struct hci_dev *hdev)
 		BT_ERR("%s urb %p submission failed (%d)",
 						hdev->name, urb, -err);
 		usb_unanchor_urb(urb);
-		kfree(buf);
 	}
 
 	usb_free_urb(urb);
@@ -298,7 +297,6 @@ static inline int bpa10x_submit_bulk_urb(struct hci_dev *hdev)
 		BT_ERR("%s urb %p submission failed (%d)",
 						hdev->name, urb, -err);
 		usb_unanchor_urb(urb);
-		kfree(buf);
 	}
 
 	usb_free_urb(urb);
diff --git a/drivers/bluetooth/btusb.c b/drivers/bluetooth/btusb.c
index 29ae998..af472e0 100644
--- a/drivers/bluetooth/btusb.c
+++ b/drivers/bluetooth/btusb.c
@@ -102,6 +102,7 @@ static struct usb_device_id blacklist_table[] = {
 	{ USB_DEVICE(0x0a5c, 0x2101), .driver_info = BTUSB_RESET | BTUSB_WRONG_SCO_MTU },
 
 	/* Broadcom BCM2046 */
+	{ USB_DEVICE(0x0a5c, 0x2146), .driver_info = BTUSB_RESET },
 	{ USB_DEVICE(0x0a5c, 0x2151), .driver_info = BTUSB_RESET },
 
 	/* Apple MacBook Pro with Broadcom chip */
@@ -113,6 +114,7 @@ static struct usb_device_id blacklist_table[] = {
 
 	/* Targus ACB10US */
 	{ USB_DEVICE(0x0a5c, 0x2100), .driver_info = BTUSB_RESET },
+	{ USB_DEVICE(0x0a5c, 0x2154), .driver_info = BTUSB_RESET },
 
 	/* ANYCOM Bluetooth USB-200 and USB-250 */
 	{ USB_DEVICE(0x0a5c, 0x2111), .driver_info = BTUSB_RESET },
@@ -150,6 +152,9 @@ static struct usb_device_id blacklist_table[] = {
 	{ USB_DEVICE(0x050d, 0x0012), .driver_info = BTUSB_RESET | BTUSB_WRONG_SCO_MTU },
 	{ USB_DEVICE(0x050d, 0x0013), .driver_info = BTUSB_RESET | BTUSB_WRONG_SCO_MTU },
 
+	/* Belkin F8T016 device */
+	{ USB_DEVICE(0x050d, 0x016a), .driver_info = BTUSB_RESET },
+
 	/* Digianswer devices */
 	{ USB_DEVICE(0x08fd, 0x0001), .driver_info = BTUSB_DIGIANSWER },
 	{ USB_DEVICE(0x08fd, 0x0002), .driver_info = BTUSB_IGNORE },
@@ -271,7 +276,6 @@ static int btusb_submit_intr_urb(struct hci_dev *hdev)
 		BT_ERR("%s urb %p submission failed (%d)",
 						hdev->name, urb, -err);
 		usb_unanchor_urb(urb);
-		kfree(buf);
 	}
 
 	usb_free_urb(urb);
@@ -354,7 +358,6 @@ static int btusb_submit_bulk_urb(struct hci_dev *hdev)
 		BT_ERR("%s urb %p submission failed (%d)",
 						hdev->name, urb, -err);
 		usb_unanchor_urb(urb);
-		kfree(buf);
 	}
 
 	usb_free_urb(urb);
@@ -475,7 +478,6 @@ static int btusb_submit_isoc_urb(struct hci_dev *hdev)
 		BT_ERR("%s urb %p submission failed (%d)",
 						hdev->name, urb, -err);
 		usb_unanchor_urb(urb);
-		kfree(buf);
 	}
 
 	usb_free_urb(urb);
diff --git a/drivers/dma/dw_dmac.c b/drivers/dma/dw_dmac.c
index 94df917..0778d99 100644
--- a/drivers/dma/dw_dmac.c
+++ b/drivers/dma/dw_dmac.c
@@ -364,7 +364,7 @@ static void dw_dma_tasklet(unsigned long data)
 	int i;
 
 	status_block = dma_readl(dw, RAW.BLOCK);
-	status_xfer = dma_readl(dw, RAW.BLOCK);
+	status_xfer = dma_readl(dw, RAW.XFER);
 	status_err = dma_readl(dw, RAW.ERROR);
 
 	dev_vdbg(dw->dma.dev, "tasklet: status_block=%x status_err=%x\n",
diff --git a/drivers/ide/Kconfig b/drivers/ide/Kconfig
index 8e93a79..052879a 100644
--- a/drivers/ide/Kconfig
+++ b/drivers/ide/Kconfig
@@ -780,10 +780,6 @@ config BLK_DEV_IDEDMA_PMAC
 	  to transfer data to and from memory.  Saying Y is safe and improves
 	  performance.
 
-config BLK_DEV_IDE_SWARM
-	tristate "IDE for Sibyte evaluation boards"
-	depends on SIBYTE_SB1xxx_SOC
-
 config BLK_DEV_IDE_AU1XXX
        bool "IDE for AMD Alchemy Au1200"
        depends on SOC_AU1200
diff --git a/drivers/ide/ide-cd.c b/drivers/ide/ide-cd.c
index 49a8c58..f16bb46 100644
--- a/drivers/ide/ide-cd.c
+++ b/drivers/ide/ide-cd.c
@@ -1661,7 +1661,9 @@ static int ide_cdrom_probe_capabilities(ide_drive_t *drive)
 		cdi->mask &= ~CDC_PLAY_AUDIO;
 
 	mechtype = buf[8 + 6] >> 5;
-	if (mechtype == mechtype_caddy || mechtype == mechtype_popup)
+	if (mechtype == mechtype_caddy ||
+	    mechtype == mechtype_popup ||
+	    (drive->atapi_flags & IDE_AFLAG_NO_AUTOCLOSE))
 		cdi->mask |= CDC_CLOSE_TRAY;
 
 	if (cdi->sanyo_slot > 0) {
@@ -1859,6 +1861,8 @@ static const struct cd_list_entry ide_cd_quirks_list[] = {
 	{ "MATSHITADVD-ROM SR-8176", NULL,   IDE_AFLAG_PLAY_AUDIO_OK	     },
 	{ "MATSHITADVD-ROM SR-8174", NULL,   IDE_AFLAG_PLAY_AUDIO_OK	     },
 	{ "Optiarc DVD RW AD-5200A", NULL,   IDE_AFLAG_PLAY_AUDIO_OK	     },
+	{ "Optiarc DVD RW AD-7200A", NULL,   IDE_AFLAG_PLAY_AUDIO_OK	     },
+	{ "Optiarc DVD RW AD-7543A", NULL,   IDE_AFLAG_NO_AUTOCLOSE	     },
 	{ NULL, NULL, 0 }
 };
 
diff --git a/drivers/ide/ide-dma.c b/drivers/ide/ide-dma.c
index adc6827..3fa07c0 100644
--- a/drivers/ide/ide-dma.c
+++ b/drivers/ide/ide-dma.c
@@ -211,7 +211,7 @@ int ide_build_dmatable (ide_drive_t *drive, struct request *rq)
 				xcount = bcount & 0xffff;
 				if (is_trm290)
 					xcount = ((xcount >> 2) - 1) << 16;
-				if (xcount == 0x0000) {
+				else if (xcount == 0x0000) {
 	/* 
 	 * Most chipsets correctly interpret a length of 0x0000 as 64KB,
 	 * but at least one (e.g. CS5530) misinterprets it as zero (!).
diff --git a/drivers/ide/ide-probe.c b/drivers/ide/ide-probe.c
index 994e410..a51a30e 100644
--- a/drivers/ide/ide-probe.c
+++ b/drivers/ide/ide-probe.c
@@ -1492,7 +1492,7 @@ static struct device_attribute *ide_port_attrs[] = {
 
 static int ide_sysfs_register_port(ide_hwif_t *hwif)
 {
-	int i, rc;
+	int i, uninitialized_var(rc);
 
 	for (i = 0; ide_port_attrs[i]; i++) {
 		rc = device_create_file(hwif->portdev, ide_port_attrs[i]);
diff --git a/drivers/ide/mips/Makefile b/drivers/ide/mips/Makefile
index 677c7b2..5873fa0 100644
--- a/drivers/ide/mips/Makefile
+++ b/drivers/ide/mips/Makefile
@@ -1,4 +1,3 @@
-obj-$(CONFIG_BLK_DEV_IDE_SWARM)		+= swarm.o
 obj-$(CONFIG_BLK_DEV_IDE_AU1XXX)	+= au1xxx-ide.o
 
 EXTRA_CFLAGS    := -Idrivers/ide
diff --git a/drivers/ide/mips/swarm.c b/drivers/ide/mips/swarm.c
deleted file mode 100644
index 39c9ee9..0000000
--- a/drivers/ide/mips/swarm.c
+++ /dev/null
@@ -1,197 +0,0 @@
-/*
- * Copyright (C) 2001, 2002, 2003 Broadcom Corporation
- * Copyright (C) 2004 MontaVista Software Inc.
- *	Author:	Manish Lachwani, mlachwani@mvista.com
- * Copyright (C) 2004  MIPS Technologies, Inc.  All rights reserved.
- *	Author: Maciej W. Rozycki <macro@mips.com>
- * Copyright (c) 2006, 2008  Maciej W. Rozycki
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; either version 2
- * of the License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
- */
-
-/*
- *  Derived loosely from ide-pmac.c, so:
- *  Copyright (C) 1998 Paul Mackerras.
- *  Copyright (C) 1995-1998 Mark Lord
- */
-
-/*
- * Boards with SiByte processors so far have supported IDE devices via
- * the Generic Bus, PCI bus, and built-in PCMCIA interface.  In all
- * cases, byte-swapping must be avoided for these devices (whereas
- * other PCI devices, for example, will require swapping).  Any
- * SiByte-targetted kernel including IDE support will include this
- * file.  Probing of a Generic Bus for an IDE device is controlled by
- * the definition of "SIBYTE_HAVE_IDE", which is provided by
- * <asm/sibyte/board.h> for Broadcom boards.
- */
-
-#include <linux/ide.h>
-#include <linux/ioport.h>
-#include <linux/kernel.h>
-#include <linux/types.h>
-#include <linux/platform_device.h>
-
-#include <asm/io.h>
-
-#include <asm/sibyte/board.h>
-#include <asm/sibyte/sb1250_genbus.h>
-#include <asm/sibyte/sb1250_regs.h>
-
-#define DRV_NAME "ide-swarm"
-
-static char swarm_ide_string[] = DRV_NAME;
-
-static struct resource swarm_ide_resource = {
-	.name	= "SWARM GenBus IDE",
-	.flags	= IORESOURCE_MEM,
-};
-
-static struct platform_device *swarm_ide_dev;
-
-static const struct ide_port_info swarm_port_info = {
-	.name			= DRV_NAME,
-	.host_flags		= IDE_HFLAG_MMIO | IDE_HFLAG_NO_DMA,
-};
-
-/*
- * swarm_ide_probe - if the board header indicates the existence of
- * Generic Bus IDE, allocate a HWIF for it.
- */
-static int __devinit swarm_ide_probe(struct device *dev)
-{
-	u8 __iomem *base;
-	struct ide_host *host;
-	phys_t offset, size;
-	int i, rc;
-	hw_regs_t hw, *hws[] = { &hw, NULL, NULL, NULL };
-
-	if (!SIBYTE_HAVE_IDE)
-		return -ENODEV;
-
-	base = ioremap(A_IO_EXT_BASE, 0x800);
-	offset = __raw_readq(base + R_IO_EXT_REG(R_IO_EXT_START_ADDR, IDE_CS));
-	size = __raw_readq(base + R_IO_EXT_REG(R_IO_EXT_MULT_SIZE, IDE_CS));
-	iounmap(base);
-
-	offset = G_IO_START_ADDR(offset) << S_IO_ADDRBASE;
-	size = (G_IO_MULT_SIZE(size) + 1) << S_IO_REGSIZE;
-	if (offset < A_PHYS_GENBUS || offset >= A_PHYS_GENBUS_END) {
-		printk(KERN_INFO DRV_NAME
-		       ": IDE interface at GenBus disabled\n");
-		return -EBUSY;
-	}
-
-	printk(KERN_INFO DRV_NAME ": IDE interface at GenBus slot %i\n",
-	       IDE_CS);
-
-	swarm_ide_resource.start = offset;
-	swarm_ide_resource.end = offset + size - 1;
-	if (request_resource(&iomem_resource, &swarm_ide_resource)) {
-		printk(KERN_ERR DRV_NAME
-		       ": can't request I/O memory resource\n");
-		return -EBUSY;
-	}
-
-	base = ioremap(offset, size);
-
-	memset(&hw, 0, sizeof(hw));
-	for (i = 0; i <= 7; i++)
-		hw.io_ports_array[i] =
-				(unsigned long)(base + ((0x1f0 + i) << 5));
-	hw.io_ports.ctl_addr =
-				(unsigned long)(base + (0x3f6 << 5));
-	hw.irq = K_INT_GB_IDE;
-	hw.chipset = ide_generic;
-
-	rc = ide_host_add(&swarm_port_info, hws, &host);
-	if (rc)
-		goto err;
-
-	dev_set_drvdata(dev, host);
-
-	return 0;
-err:
-	release_resource(&swarm_ide_resource);
-	iounmap(base);
-	return rc;
-}
-
-static struct device_driver swarm_ide_driver = {
-	.name	= swarm_ide_string,
-	.bus	= &platform_bus_type,
-	.probe	= swarm_ide_probe,
-};
-
-static void swarm_ide_platform_release(struct device *device)
-{
-	struct platform_device *pldev;
-
-	/* free device */
-	pldev = to_platform_device(device);
-	kfree(pldev);
-}
-
-static int __devinit swarm_ide_init_module(void)
-{
-	struct platform_device *pldev;
-	int err;
-
-	printk(KERN_INFO "SWARM IDE driver\n");
-
-	if (driver_register(&swarm_ide_driver)) {
-		printk(KERN_ERR "Driver registration failed\n");
-		err = -ENODEV;
-		goto out;
-	}
-
-        if (!(pldev = kzalloc(sizeof (*pldev), GFP_KERNEL))) {
-		err = -ENOMEM;
-		goto out_unregister_driver;
-	}
-
-	pldev->name		= swarm_ide_string;
-	pldev->id		= 0;
-	pldev->dev.release	= swarm_ide_platform_release;
-
-	if (platform_device_register(pldev)) {
-		err = -ENODEV;
-		goto out_free_pldev;
-	}
-
-        if (!pldev->dev.driver) {
-		/*
-		 * The driver was not bound to this device, there was
-                 * no hardware at this address. Unregister it, as the
-		 * release fuction will take care of freeing the
-		 * allocated structure
-		 */
-		platform_device_unregister (pldev);
-	}
-
-	swarm_ide_dev = pldev;
-
-	return 0;
-
-out_free_pldev:
-	kfree(pldev);
-
-out_unregister_driver:
-	driver_unregister(&swarm_ide_driver);
-out:
-	return err;
-}
-
-module_init(swarm_ide_init_module);
diff --git a/drivers/leds/leds-fsg.c b/drivers/leds/leds-fsg.c
index be0e121..3493515 100644
--- a/drivers/leds/leds-fsg.c
+++ b/drivers/leds/leds-fsg.c
@@ -161,6 +161,16 @@ static int fsg_led_probe(struct platform_device *pdev)
 {
 	int ret;
 
+	/* Map the LED chip select address space */
+	latch_address = (unsigned short *) ioremap(IXP4XX_EXP_BUS_BASE(2), 512);
+	if (!latch_address) {
+		ret = -ENOMEM;
+		goto failremap;
+	}
+
+	latch_value = 0xffff;
+	*latch_address = latch_value;
+
 	ret = led_classdev_register(&pdev->dev, &fsg_wlan_led);
 	if (ret < 0)
 		goto failwlan;
@@ -185,20 +195,8 @@ static int fsg_led_probe(struct platform_device *pdev)
 	if (ret < 0)
 		goto failring;
 
-	/* Map the LED chip select address space */
-	latch_address = (unsigned short *) ioremap(IXP4XX_EXP_BUS_BASE(2), 512);
-	if (!latch_address) {
-		ret = -ENOMEM;
-		goto failremap;
-	}
-
-	latch_value = 0xffff;
-	*latch_address = latch_value;
-
 	return ret;
 
- failremap:
-	led_classdev_unregister(&fsg_ring_led);
  failring:
 	led_classdev_unregister(&fsg_sync_led);
  failsync:
@@ -210,14 +208,14 @@ static int fsg_led_probe(struct platform_device *pdev)
  failwan:
 	led_classdev_unregister(&fsg_wlan_led);
  failwlan:
+	iounmap(latch_address);
+ failremap:
 
 	return ret;
 }
 
 static int fsg_led_remove(struct platform_device *pdev)
 {
-	iounmap(latch_address);
-
 	led_classdev_unregister(&fsg_wlan_led);
 	led_classdev_unregister(&fsg_wan_led);
 	led_classdev_unregister(&fsg_sata_led);
@@ -225,6 +223,8 @@ static int fsg_led_remove(struct platform_device *pdev)
 	led_classdev_unregister(&fsg_sync_led);
 	led_classdev_unregister(&fsg_ring_led);
 
+	iounmap(latch_address);
+
 	return 0;
 }
 
diff --git a/drivers/leds/leds-pca955x.c b/drivers/leds/leds-pca955x.c
index 146c069..f508729 100644
--- a/drivers/leds/leds-pca955x.c
+++ b/drivers/leds/leds-pca955x.c
@@ -248,11 +248,10 @@ static int __devinit pca955x_probe(struct i2c_client *client,
 					const struct i2c_device_id *id)
 {
 	struct pca955x_led *pca955x;
-	int i;
-	int err = -ENODEV;
 	struct pca955x_chipdef *chip;
 	struct i2c_adapter *adapter;
 	struct led_platform_data *pdata;
+	int i, err;
 
 	chip = &pca955x_chipdefs[id->driver_data];
 	adapter = to_i2c_adapter(client->dev.parent);
@@ -282,43 +281,41 @@ static int __devinit pca955x_probe(struct i2c_client *client,
 		}
 	}
 
+	pca955x = kzalloc(sizeof(*pca955x) * chip->bits, GFP_KERNEL);
+	if (!pca955x)
+		return -ENOMEM;
+
+	i2c_set_clientdata(client, pca955x);
+
 	for (i = 0; i < chip->bits; i++) {
-		pca955x = kzalloc(sizeof(struct pca955x_led), GFP_KERNEL);
-		if (!pca955x) {
-			err = -ENOMEM;
-			goto exit;
-		}
+		pca955x[i].chipdef = chip;
+		pca955x[i].client = client;
+		pca955x[i].led_num = i;
 
-		pca955x->chipdef = chip;
-		pca955x->client = client;
-		pca955x->led_num = i;
 		/* Platform data can specify LED names and default triggers */
 		if (pdata) {
 			if (pdata->leds[i].name)
-				snprintf(pca955x->name, 32, "pca955x:%s",
-							pdata->leds[i].name);
+				snprintf(pca955x[i].name,
+					 sizeof(pca955x[i].name), "pca955x:%s",
+					 pdata->leds[i].name);
 			if (pdata->leds[i].default_trigger)
-				pca955x->led_cdev.default_trigger =
+				pca955x[i].led_cdev.default_trigger =
 					pdata->leds[i].default_trigger;
 		} else {
-			snprintf(pca955x->name, 32, "pca955x:%d", i);
+			snprintf(pca955x[i].name, sizeof(pca955x[i].name),
+				 "pca955x:%d", i);
 		}
-		spin_lock_init(&pca955x->lock);
 
-		pca955x->led_cdev.name = pca955x->name;
-		pca955x->led_cdev.brightness_set =
-				pca955x_led_set;
+		spin_lock_init(&pca955x[i].lock);
 
-		/*
-		 * Client data is a pointer to the _first_ pca955x_led
-		 * struct
-		 */
-		if (i == 0)
-			i2c_set_clientdata(client, pca955x);
+		pca955x[i].led_cdev.name = pca955x[i].name;
+		pca955x[i].led_cdev.brightness_set = pca955x_led_set;
 
-		INIT_WORK(&(pca955x->work), pca955x_led_work);
+		INIT_WORK(&pca955x[i].work, pca955x_led_work);
 
-		led_classdev_register(&client->dev, &(pca955x->led_cdev));
+		err = led_classdev_register(&client->dev, &pca955x[i].led_cdev);
+		if (err < 0)
+			goto exit;
 	}
 
 	/* Turn off LEDs */
@@ -336,23 +333,32 @@ static int __devinit pca955x_probe(struct i2c_client *client,
 	pca955x_write_psc(client, 1, 0);
 
 	return 0;
+
 exit:
+	while (i--) {
+		led_classdev_unregister(&pca955x[i].led_cdev);
+		cancel_work_sync(&pca955x[i].work);
+	}
+
+	kfree(pca955x);
+	i2c_set_clientdata(client, NULL);
+
 	return err;
 }
 
 static int __devexit pca955x_remove(struct i2c_client *client)
 {
 	struct pca955x_led *pca955x = i2c_get_clientdata(client);
-	int leds = pca955x->chipdef->bits;
 	int i;
 
-	for (i = 0; i < leds; i++) {
-		led_classdev_unregister(&(pca955x->led_cdev));
-		cancel_work_sync(&(pca955x->work));
-		kfree(pca955x);
-		pca955x = pca955x + 1;
+	for (i = 0; i < pca955x->chipdef->bits; i++) {
+		led_classdev_unregister(&pca955x[i].led_cdev);
+		cancel_work_sync(&pca955x[i].work);
 	}
 
+	kfree(pca955x);
+	i2c_set_clientdata(client, NULL);
+
 	return 0;
 }
 
diff --git a/drivers/md/dm-mpath.c b/drivers/md/dm-mpath.c
index 71dd65a..c2fcf28 100644
--- a/drivers/md/dm-mpath.c
+++ b/drivers/md/dm-mpath.c
@@ -63,6 +63,7 @@ struct multipath {
 
 	const char *hw_handler_name;
 	struct work_struct activate_path;
+	struct pgpath *pgpath_to_activate;
 	unsigned nr_priority_groups;
 	struct list_head priority_groups;
 	unsigned pg_init_required;	/* pg_init needs calling? */
@@ -146,6 +147,7 @@ static struct priority_group *alloc_priority_group(void)
 
 static void free_pgpaths(struct list_head *pgpaths, struct dm_target *ti)
 {
+	unsigned long flags;
 	struct pgpath *pgpath, *tmp;
 	struct multipath *m = ti->private;
 
@@ -154,6 +156,10 @@ static void free_pgpaths(struct list_head *pgpaths, struct dm_target *ti)
 		if (m->hw_handler_name)
 			scsi_dh_detach(bdev_get_queue(pgpath->path.dev->bdev));
 		dm_put_device(ti, pgpath->path.dev);
+		spin_lock_irqsave(&m->lock, flags);
+		if (m->pgpath_to_activate == pgpath)
+			m->pgpath_to_activate = NULL;
+		spin_unlock_irqrestore(&m->lock, flags);
 		free_pgpath(pgpath);
 	}
 }
@@ -421,6 +427,7 @@ static void process_queued_ios(struct work_struct *work)
 		__choose_pgpath(m);
 
 	pgpath = m->current_pgpath;
+	m->pgpath_to_activate = m->current_pgpath;
 
 	if ((pgpath && !m->queue_io) ||
 	    (!pgpath && !m->queue_if_no_path))
@@ -1093,8 +1100,15 @@ static void activate_path(struct work_struct *work)
 	int ret;
 	struct multipath *m =
 		container_of(work, struct multipath, activate_path);
-	struct dm_path *path = &m->current_pgpath->path;
+	struct dm_path *path;
+	unsigned long flags;
 
+	spin_lock_irqsave(&m->lock, flags);
+	path = &m->pgpath_to_activate->path;
+	m->pgpath_to_activate = NULL;
+	spin_unlock_irqrestore(&m->lock, flags);
+	if (!path)
+		return;
 	ret = scsi_dh_activate(bdev_get_queue(path->dev->bdev));
 	pg_init_done(path, ret);
 }
diff --git a/drivers/md/dm.c b/drivers/md/dm.c
index bca448e..ace998c 100644
--- a/drivers/md/dm.c
+++ b/drivers/md/dm.c
@@ -837,12 +837,14 @@ static int dm_merge_bvec(struct request_queue *q,
 	struct dm_table *map = dm_get_table(md);
 	struct dm_target *ti;
 	sector_t max_sectors;
-	int max_size;
+	int max_size = 0;
 
 	if (unlikely(!map))
-		return 0;
+		goto out;
 
 	ti = dm_table_find_target(map, bvm->bi_sector);
+	if (!dm_target_is_valid(ti))
+		goto out_table;
 
 	/*
 	 * Find maximum amount of I/O that won't need splitting
@@ -861,14 +863,16 @@ static int dm_merge_bvec(struct request_queue *q,
 	if (max_size && ti->type->merge)
 		max_size = ti->type->merge(ti, bvm, biovec, max_size);
 
+out_table:
+	dm_table_put(map);
+
+out:
 	/*
 	 * Always allow an entire first page
 	 */
 	if (max_size <= biovec->bv_len && !(bvm->bi_size >> SECTOR_SHIFT))
 		max_size = biovec->bv_len;
 
-	dm_table_put(map);
-
 	return max_size;
 }
 
diff --git a/drivers/media/common/tuners/tuner-xc2028.h b/drivers/media/common/tuners/tuner-xc2028.h
index 216025c..2c5b628 100644
--- a/drivers/media/common/tuners/tuner-xc2028.h
+++ b/drivers/media/common/tuners/tuner-xc2028.h
@@ -10,6 +10,7 @@
 #include "dvb_frontend.h"
 
 #define XC2028_DEFAULT_FIRMWARE "xc3028-v27.fw"
+#define XC3028L_DEFAULT_FIRMWARE "xc3028L-v36.fw"
 
 /*      Dmoduler		IF (kHz) */
 #define	XC3028_FE_DEFAULT	0		/* Don't load SCODE */
diff --git a/drivers/media/dvb/b2c2/flexcop-fe-tuner.c b/drivers/media/dvb/b2c2/flexcop-fe-tuner.c
index 4eed783..a127a41 100644
--- a/drivers/media/dvb/b2c2/flexcop-fe-tuner.c
+++ b/drivers/media/dvb/b2c2/flexcop-fe-tuner.c
@@ -491,6 +491,7 @@ static struct s5h1420_config skystar2_rev2_7_s5h1420_config = {
 	.demod_address = 0x53,
 	.invert = 1,
 	.repeated_start_workaround = 1,
+	.serial_mpeg = 1,
 };
 
 static struct itd1000_config skystar2_rev2_7_itd1000_config = {
diff --git a/drivers/media/dvb/dvb-core/dmxdev.c b/drivers/media/dvb/dvb-core/dmxdev.c
index 069d847..0c733c6 100644
--- a/drivers/media/dvb/dvb-core/dmxdev.c
+++ b/drivers/media/dvb/dvb-core/dmxdev.c
@@ -364,15 +364,16 @@ static int dvb_dmxdev_section_callback(const u8 *buffer1, size_t buffer1_len,
 				       enum dmx_success success)
 {
 	struct dmxdev_filter *dmxdevfilter = filter->priv;
+	unsigned long flags;
 	int ret;
 
 	if (dmxdevfilter->buffer.error) {
 		wake_up(&dmxdevfilter->buffer.queue);
 		return 0;
 	}
-	spin_lock(&dmxdevfilter->dev->lock);
+	spin_lock_irqsave(&dmxdevfilter->dev->lock, flags);
 	if (dmxdevfilter->state != DMXDEV_STATE_GO) {
-		spin_unlock(&dmxdevfilter->dev->lock);
+		spin_unlock_irqrestore(&dmxdevfilter->dev->lock, flags);
 		return 0;
 	}
 	del_timer(&dmxdevfilter->timer);
@@ -391,7 +392,7 @@ static int dvb_dmxdev_section_callback(const u8 *buffer1, size_t buffer1_len,
 	}
 	if (dmxdevfilter->params.sec.flags & DMX_ONESHOT)
 		dmxdevfilter->state = DMXDEV_STATE_DONE;
-	spin_unlock(&dmxdevfilter->dev->lock);
+	spin_unlock_irqrestore(&dmxdevfilter->dev->lock, flags);
 	wake_up(&dmxdevfilter->buffer.queue);
 	return 0;
 }
@@ -403,11 +404,12 @@ static int dvb_dmxdev_ts_callback(const u8 *buffer1, size_t buffer1_len,
 {
 	struct dmxdev_filter *dmxdevfilter = feed->priv;
 	struct dvb_ringbuffer *buffer;
+	unsigned long flags;
 	int ret;
 
-	spin_lock(&dmxdevfilter->dev->lock);
+	spin_lock_irqsave(&dmxdevfilter->dev->lock, flags);
 	if (dmxdevfilter->params.pes.output == DMX_OUT_DECODER) {
-		spin_unlock(&dmxdevfilter->dev->lock);
+		spin_unlock_irqrestore(&dmxdevfilter->dev->lock, flags);
 		return 0;
 	}
 
@@ -417,7 +419,7 @@ static int dvb_dmxdev_ts_callback(const u8 *buffer1, size_t buffer1_len,
 	else
 		buffer = &dmxdevfilter->dev->dvr_buffer;
 	if (buffer->error) {
-		spin_unlock(&dmxdevfilter->dev->lock);
+		spin_unlock_irqrestore(&dmxdevfilter->dev->lock, flags);
 		wake_up(&buffer->queue);
 		return 0;
 	}
@@ -428,7 +430,7 @@ static int dvb_dmxdev_ts_callback(const u8 *buffer1, size_t buffer1_len,
 		dvb_ringbuffer_flush(buffer);
 		buffer->error = ret;
 	}
-	spin_unlock(&dmxdevfilter->dev->lock);
+	spin_unlock_irqrestore(&dmxdevfilter->dev->lock, flags);
 	wake_up(&buffer->queue);
 	return 0;
 }
diff --git a/drivers/media/dvb/dvb-core/dvb_demux.c b/drivers/media/dvb/dvb-core/dvb_demux.c
index e2eca0b..a2c1fd5 100644
--- a/drivers/media/dvb/dvb-core/dvb_demux.c
+++ b/drivers/media/dvb/dvb-core/dvb_demux.c
@@ -399,7 +399,9 @@ static void dvb_dmx_swfilter_packet(struct dvb_demux *demux, const u8 *buf)
 void dvb_dmx_swfilter_packets(struct dvb_demux *demux, const u8 *buf,
 			      size_t count)
 {
-	spin_lock(&demux->lock);
+	unsigned long flags;
+
+	spin_lock_irqsave(&demux->lock, flags);
 
 	while (count--) {
 		if (buf[0] == 0x47)
@@ -407,16 +409,17 @@ void dvb_dmx_swfilter_packets(struct dvb_demux *demux, const u8 *buf,
 		buf += 188;
 	}
 
-	spin_unlock(&demux->lock);
+	spin_unlock_irqrestore(&demux->lock, flags);
 }
 
 EXPORT_SYMBOL(dvb_dmx_swfilter_packets);
 
 void dvb_dmx_swfilter(struct dvb_demux *demux, const u8 *buf, size_t count)
 {
+	unsigned long flags;
 	int p = 0, i, j;
 
-	spin_lock(&demux->lock);
+	spin_lock_irqsave(&demux->lock, flags);
 
 	if (demux->tsbufp) {
 		i = demux->tsbufp;
@@ -449,17 +452,18 @@ void dvb_dmx_swfilter(struct dvb_demux *demux, const u8 *buf, size_t count)
 	}
 
 bailout:
-	spin_unlock(&demux->lock);
+	spin_unlock_irqrestore(&demux->lock, flags);
 }
 
 EXPORT_SYMBOL(dvb_dmx_swfilter);
 
 void dvb_dmx_swfilter_204(struct dvb_demux *demux, const u8 *buf, size_t count)
 {
+	unsigned long flags;
 	int p = 0, i, j;
 	u8 tmppack[188];
 
-	spin_lock(&demux->lock);
+	spin_lock_irqsave(&demux->lock, flags);
 
 	if (demux->tsbufp) {
 		i = demux->tsbufp;
@@ -500,7 +504,7 @@ void dvb_dmx_swfilter_204(struct dvb_demux *demux, const u8 *buf, size_t count)
 	}
 
 bailout:
-	spin_unlock(&demux->lock);
+	spin_unlock_irqrestore(&demux->lock, flags);
 }
 
 EXPORT_SYMBOL(dvb_dmx_swfilter_204);
diff --git a/drivers/media/dvb/frontends/s5h1420.c b/drivers/media/dvb/frontends/s5h1420.c
index 747d3fa..2e9fd28 100644
--- a/drivers/media/dvb/frontends/s5h1420.c
+++ b/drivers/media/dvb/frontends/s5h1420.c
@@ -59,7 +59,7 @@ struct s5h1420_state {
 	 * it does not support repeated-start, workaround: write addr-1
 	 * and then read
 	 */
-	u8 shadow[255];
+	u8 shadow[256];
 };
 
 static u32 s5h1420_getsymbolrate(struct s5h1420_state* state);
@@ -94,8 +94,11 @@ static u8 s5h1420_readreg(struct s5h1420_state *state, u8 reg)
 		if (ret != 3)
 			return ret;
 	} else {
-		ret = i2c_transfer(state->i2c, &msg[1], 2);
-		if (ret != 2)
+		ret = i2c_transfer(state->i2c, &msg[1], 1);
+		if (ret != 1)
+			return ret;
+		ret = i2c_transfer(state->i2c, &msg[2], 1);
+		if (ret != 1)
 			return ret;
 	}
 
@@ -823,7 +826,7 @@ static int s5h1420_init (struct dvb_frontend* fe)
 	struct s5h1420_state* state = fe->demodulator_priv;
 
 	/* disable power down and do reset */
-	state->CON_1_val = 0x10;
+	state->CON_1_val = state->config->serial_mpeg << 4;
 	s5h1420_writereg(state, 0x02, state->CON_1_val);
 	msleep(10);
 	s5h1420_reset(state);
diff --git a/drivers/media/dvb/frontends/s5h1420.h b/drivers/media/dvb/frontends/s5h1420.h
index 4c913f1..ff30813 100644
--- a/drivers/media/dvb/frontends/s5h1420.h
+++ b/drivers/media/dvb/frontends/s5h1420.h
@@ -32,10 +32,12 @@ struct s5h1420_config
 	u8 demod_address;
 
 	/* does the inversion require inversion? */
-	u8 invert : 1;
+	u8 invert:1;
 
-	u8 repeated_start_workaround : 1;
-	u8 cdclk_polarity : 1; /* 1 == falling edge, 0 == raising edge */
+	u8 repeated_start_workaround:1;
+	u8 cdclk_polarity:1; /* 1 == falling edge, 0 == raising edge */
+
+	u8 serial_mpeg:1;
 };
 
 #if defined(CONFIG_DVB_S5H1420) || (defined(CONFIG_DVB_S5H1420_MODULE) && defined(MODULE))
diff --git a/drivers/media/dvb/siano/sms-cards.c b/drivers/media/dvb/siano/sms-cards.c
index cc5efb6..9da260f 100644
--- a/drivers/media/dvb/siano/sms-cards.c
+++ b/drivers/media/dvb/siano/sms-cards.c
@@ -40,6 +40,8 @@ struct usb_device_id smsusb_id_table[] = {
 		.driver_info = SMS1XXX_BOARD_HAUPPAUGE_OKEMO_B },
 	{ USB_DEVICE(0x2040, 0x5500),
 		.driver_info = SMS1XXX_BOARD_HAUPPAUGE_WINDHAM },
+	{ USB_DEVICE(0x2040, 0x5510),
+		.driver_info = SMS1XXX_BOARD_HAUPPAUGE_WINDHAM },
 	{ USB_DEVICE(0x2040, 0x5580),
 		.driver_info = SMS1XXX_BOARD_HAUPPAUGE_WINDHAM },
 	{ USB_DEVICE(0x2040, 0x5590),
@@ -87,7 +89,7 @@ static struct sms_board sms_boards[] = {
 		.fw[DEVICE_MODE_DVBT_BDA] = "sms1xxx-nova-b-dvbt-01.fw",
 	},
 	[SMS1XXX_BOARD_HAUPPAUGE_WINDHAM] = {
-		.name	= "Hauppauge WinTV-Nova-T-MiniStick",
+		.name	= "Hauppauge WinTV MiniStick",
 		.type	= SMS_NOVA_B0,
 		.fw[DEVICE_MODE_DVBT_BDA] = "sms1xxx-hcw-55xxx-dvbt-01.fw",
 	},
diff --git a/drivers/media/video/bt8xx/bttv-driver.c b/drivers/media/video/bt8xx/bttv-driver.c
index 6ae4cc8..933eaef 100644
--- a/drivers/media/video/bt8xx/bttv-driver.c
+++ b/drivers/media/video/bt8xx/bttv-driver.c
@@ -3431,7 +3431,7 @@ static int radio_open(struct inode *inode, struct file *file)
 	dprintk("bttv: open minor=%d\n",minor);
 
 	for (i = 0; i < bttv_num; i++) {
-		if (bttvs[i].radio_dev->minor == minor) {
+		if (bttvs[i].radio_dev && bttvs[i].radio_dev->minor == minor) {
 			btv = &bttvs[i];
 			break;
 		}
diff --git a/drivers/media/video/cafe_ccic.c b/drivers/media/video/cafe_ccic.c
index c149b7d..5405c30 100644
--- a/drivers/media/video/cafe_ccic.c
+++ b/drivers/media/video/cafe_ccic.c
@@ -19,6 +19,7 @@
 #include <linux/module.h>
 #include <linux/init.h>
 #include <linux/fs.h>
+#include <linux/mm.h>
 #include <linux/pci.h>
 #include <linux/i2c.h>
 #include <linux/interrupt.h>
diff --git a/drivers/media/video/cpia2/cpia2_usb.c b/drivers/media/video/cpia2/cpia2_usb.c
index a4574740..a8a1990 100644
--- a/drivers/media/video/cpia2/cpia2_usb.c
+++ b/drivers/media/video/cpia2/cpia2_usb.c
@@ -632,7 +632,7 @@ int cpia2_usb_transfer_cmd(struct camera_data *cam,
 static int submit_urbs(struct camera_data *cam)
 {
 	struct urb *urb;
-	int fx, err, i;
+	int fx, err, i, j;
 
 	for(i=0; i<NUM_SBUF; ++i) {
 		if (cam->sbuf[i].data)
@@ -657,6 +657,9 @@ static int submit_urbs(struct camera_data *cam)
 		}
 		urb = usb_alloc_urb(FRAMES_PER_DESC, GFP_KERNEL);
 		if (!urb) {
+			ERR("%s: usb_alloc_urb error!\n", __func__);
+			for (j = 0; j < i; j++)
+				usb_free_urb(cam->sbuf[j].urb);
 			return -ENOMEM;
 		}
 
diff --git a/drivers/media/video/cx18/cx18-cards.c b/drivers/media/video/cx18/cx18-cards.c
index 8fe5f38..3cb9734 100644
--- a/drivers/media/video/cx18/cx18-cards.c
+++ b/drivers/media/video/cx18/cx18-cards.c
@@ -163,7 +163,7 @@ static const struct cx18_card cx18_card_h900 = {
 	},
 	.audio_inputs = {
 		{ CX18_CARD_INPUT_AUD_TUNER,
-		  CX18_AV_AUDIO8, 0 },
+		  CX18_AV_AUDIO5, 0 },
 		{ CX18_CARD_INPUT_LINE_IN1,
 		  CX18_AV_AUDIO_SERIAL1, 0 },
 	},
diff --git a/drivers/media/video/em28xx/em28xx-audio.c b/drivers/media/video/em28xx/em28xx-audio.c
index 3c00610..ac3292d 100644
--- a/drivers/media/video/em28xx/em28xx-audio.c
+++ b/drivers/media/video/em28xx/em28xx-audio.c
@@ -117,10 +117,10 @@ static void em28xx_audio_isocirq(struct urb *urb)
 
 			if (oldptr + length >= runtime->buffer_size) {
 				unsigned int cnt =
-				    runtime->buffer_size - oldptr - 1;
+				    runtime->buffer_size - oldptr;
 				memcpy(runtime->dma_area + oldptr * stride, cp,
 				       cnt * stride);
-				memcpy(runtime->dma_area, cp + cnt,
+				memcpy(runtime->dma_area, cp + cnt * stride,
 				       length * stride - cnt * stride);
 			} else {
 				memcpy(runtime->dma_area + oldptr * stride, cp,
@@ -161,8 +161,14 @@ static int em28xx_init_audio_isoc(struct em28xx *dev)
 
 		memset(dev->adev->transfer_buffer[i], 0x80, sb_size);
 		urb = usb_alloc_urb(EM28XX_NUM_AUDIO_PACKETS, GFP_ATOMIC);
-		if (!urb)
+		if (!urb) {
+			em28xx_errdev("usb_alloc_urb failed!\n");
+			for (j = 0; j < i; j++) {
+				usb_free_urb(dev->adev->urb[j]);
+				kfree(dev->adev->transfer_buffer[j]);
+			}
 			return -ENOMEM;
+		}
 
 		urb->dev = dev->udev;
 		urb->context = dev;
diff --git a/drivers/media/video/em28xx/em28xx-cards.c b/drivers/media/video/em28xx/em28xx-cards.c
index 452da70..de943cf 100644
--- a/drivers/media/video/em28xx/em28xx-cards.c
+++ b/drivers/media/video/em28xx/em28xx-cards.c
@@ -93,28 +93,6 @@ struct em28xx_board em28xx_boards[] = {
 			.amux     = 0,
 		} },
 	},
-	[EM2800_BOARD_KWORLD_USB2800] = {
-		.name         = "Kworld USB2800",
-		.valid        = EM28XX_BOARD_NOT_VALIDATED,
-		.is_em2800    = 1,
-		.vchannels    = 3,
-		.tuner_type   = TUNER_PHILIPS_FCV1236D,
-		.tda9887_conf = TDA9887_PRESENT,
-		.decoder      = EM28XX_SAA7113,
-		.input          = { {
-			.type     = EM28XX_VMUX_TELEVISION,
-			.vmux     = SAA7115_COMPOSITE2,
-			.amux     = 0,
-		}, {
-			.type     = EM28XX_VMUX_COMPOSITE1,
-			.vmux     = SAA7115_COMPOSITE0,
-			.amux     = 1,
-		}, {
-			.type     = EM28XX_VMUX_SVIDEO,
-			.vmux     = SAA7115_SVIDEO3,
-			.amux     = 1,
-		} },
-	},
 	[EM2820_BOARD_KWORLD_PVRTV2800RF] = {
 		.name         = "Kworld PVR TV 2800 RF",
 		.is_em2800    = 0,
@@ -599,7 +577,7 @@ struct em28xx_board em28xx_boards[] = {
 		}, {
 			.type     = EM28XX_VMUX_COMPOSITE1,
 			.vmux     = TVP5150_COMPOSITE1,
-			.amux     = 1,
+			.amux     = 3,
 		}, {
 			.type     = EM28XX_VMUX_SVIDEO,
 			.vmux     = TVP5150_SVIDEO,
@@ -952,22 +930,23 @@ struct em28xx_board em28xx_boards[] = {
 	},
 	[EM2880_BOARD_KWORLD_DVB_310U] = {
 		.name	      = "KWorld DVB-T 310U",
-		.valid        = EM28XX_BOARD_NOT_VALIDATED,
 		.vchannels    = 3,
 		.tuner_type   = TUNER_XC2028,
+		.has_dvb      = 1,
+		.mts_firmware = 1,
 		.decoder      = EM28XX_TVP5150,
 		.input          = { {
 			.type     = EM28XX_VMUX_TELEVISION,
 			.vmux     = TVP5150_COMPOSITE0,
-			.amux     = 0,
+			.amux     = EM28XX_AMUX_VIDEO,
 		}, {
 			.type     = EM28XX_VMUX_COMPOSITE1,
 			.vmux     = TVP5150_COMPOSITE1,
-			.amux     = 1,
-		}, {
+			.amux     = EM28XX_AMUX_AC97_LINE_IN,
+		}, {	/* S-video has not been tested yet */
 			.type     = EM28XX_VMUX_SVIDEO,
 			.vmux     = TVP5150_SVIDEO,
-			.amux     = 1,
+			.amux     = EM28XX_AMUX_AC97_LINE_IN,
 		} },
 	},
 	[EM2881_BOARD_DNT_DA2_HYBRID] = {
@@ -1282,6 +1261,7 @@ static struct em28xx_reg_seq em2882_terratec_hybrid_xs_digital[] = {
 static struct em28xx_hash_table em28xx_eeprom_hash [] = {
 	/* P/N: SA 60002070465 Tuner: TVF7533-MF */
 	{0x6ce05a8f, EM2820_BOARD_PROLINK_PLAYTV_USB2, TUNER_YMEC_TVF_5533MF},
+	{0x966a0441, EM2880_BOARD_KWORLD_DVB_310U, TUNER_XC2028},
 };
 
 /* I2C devicelist hash table for devices with generic USB IDs */
@@ -1552,9 +1532,12 @@ static void em28xx_setup_xc3028(struct em28xx *dev, struct xc2028_ctrl *ctl)
 		/* djh - Not sure which demod we need here */
 		ctl->demod = XC3028_FE_DEFAULT;
 		break;
+	case EM2880_BOARD_AMD_ATI_TV_WONDER_HD_600:
+		ctl->demod = XC3028_FE_DEFAULT;
+		ctl->fname = XC3028L_DEFAULT_FIRMWARE;
+		break;
 	case EM2883_BOARD_HAUPPAUGE_WINTV_HVR_950:
 	case EM2880_BOARD_PINNACLE_PCTV_HD_PRO:
-	case EM2880_BOARD_AMD_ATI_TV_WONDER_HD_600:
 		/* FIXME: Better to specify the needed IF */
 		ctl->demod = XC3028_FE_DEFAULT;
 		break;
@@ -1764,6 +1747,20 @@ void em28xx_card_setup(struct em28xx *dev)
 		break;
 	case EM2820_BOARD_UNKNOWN:
 	case EM2800_BOARD_UNKNOWN:
+		/*
+		 * The K-WORLD DVB-T 310U is detected as an MSI Digivox AD.
+		 *
+		 * This occurs because they share identical USB vendor and
+		 * product IDs.
+		 *
+		 * What we do here is look up the EEPROM hash of the K-WORLD
+		 * and if it is found then we decide that we do not have
+		 * a DIGIVOX and reset the device to the K-WORLD instead.
+		 *
+		 * This solution is only valid if they do not share eeprom
+		 * hash identities which has not been determined as yet.
+		 */
+	case EM2880_BOARD_MSI_DIGIVOX_AD:
 		if (!em28xx_hint_board(dev))
 			em28xx_set_model(dev);
 		break;
diff --git a/drivers/media/video/em28xx/em28xx-dvb.c b/drivers/media/video/em28xx/em28xx-dvb.c
index 4b992bc..d2b1a1a 100644
--- a/drivers/media/video/em28xx/em28xx-dvb.c
+++ b/drivers/media/video/em28xx/em28xx-dvb.c
@@ -452,6 +452,15 @@ static int dvb_init(struct em28xx *dev)
 			goto out_free;
 		}
 		break;
+	case EM2880_BOARD_KWORLD_DVB_310U:
+		dvb->frontend = dvb_attach(zl10353_attach,
+						&em28xx_zl10353_with_xc3028,
+						&dev->i2c_adap);
+		if (attach_xc3028(0x61, dev) < 0) {
+			result = -EINVAL;
+			goto out_free;
+		}
+		break;
 	default:
 		printk(KERN_ERR "%s/2: The frontend of your DVB/ATSC card"
 				" isn't supported yet\n",
diff --git a/drivers/media/video/gspca/gspca.c b/drivers/media/video/gspca/gspca.c
index 7be6928..ac95c55 100644
--- a/drivers/media/video/gspca/gspca.c
+++ b/drivers/media/video/gspca/gspca.c
@@ -459,6 +459,7 @@ static int create_urbs(struct gspca_dev *gspca_dev,
 		urb = usb_alloc_urb(npkt, GFP_KERNEL);
 		if (!urb) {
 			err("usb_alloc_urb failed");
+			destroy_urbs(gspca_dev);
 			return -ENOMEM;
 		}
 		urb->transfer_buffer = usb_buffer_alloc(gspca_dev->dev,
@@ -468,8 +469,8 @@ static int create_urbs(struct gspca_dev *gspca_dev,
 
 		if (urb->transfer_buffer == NULL) {
 			usb_free_urb(urb);
-			destroy_urbs(gspca_dev);
 			err("usb_buffer_urb failed");
+			destroy_urbs(gspca_dev);
 			return -ENOMEM;
 		}
 		gspca_dev->urb[n] = urb;
diff --git a/drivers/media/video/gspca/pac7311.c b/drivers/media/video/gspca/pac7311.c
index d4be518..ba865b7 100644
--- a/drivers/media/video/gspca/pac7311.c
+++ b/drivers/media/video/gspca/pac7311.c
@@ -1063,6 +1063,7 @@ static __devinitdata struct usb_device_id device_table[] = {
 	{USB_DEVICE(0x093a, 0x2621), .driver_info = SENSOR_PAC7302},
 	{USB_DEVICE(0x093a, 0x2624), .driver_info = SENSOR_PAC7302},
 	{USB_DEVICE(0x093a, 0x2626), .driver_info = SENSOR_PAC7302},
+	{USB_DEVICE(0x093a, 0x262a), .driver_info = SENSOR_PAC7302},
 	{}
 };
 MODULE_DEVICE_TABLE(usb, device_table);
diff --git a/drivers/media/video/gspca/sonixb.c b/drivers/media/video/gspca/sonixb.c
index 5dd78c6..12b81ae 100644
--- a/drivers/media/video/gspca/sonixb.c
+++ b/drivers/media/video/gspca/sonixb.c
@@ -232,7 +232,7 @@ static struct ctrl sd_ctrls[] = {
 static struct v4l2_pix_format vga_mode[] = {
 	{160, 120, V4L2_PIX_FMT_SBGGR8, V4L2_FIELD_NONE,
 		.bytesperline = 160,
-		.sizeimage = 160 * 120 * 5 / 4,
+		.sizeimage = 160 * 120,
 		.colorspace = V4L2_COLORSPACE_SRGB,
 		.priv = 2 | MODE_RAW},
 	{160, 120, V4L2_PIX_FMT_SN9C10X, V4L2_FIELD_NONE,
@@ -264,7 +264,7 @@ static struct v4l2_pix_format sif_mode[] = {
 		.priv = 1 | MODE_REDUCED_SIF},
 	{176, 144, V4L2_PIX_FMT_SBGGR8, V4L2_FIELD_NONE,
 		.bytesperline = 176,
-		.sizeimage = 176 * 144 * 5 / 4,
+		.sizeimage = 176 * 144,
 		.colorspace = V4L2_COLORSPACE_SRGB,
 		.priv = 1 | MODE_RAW},
 	{176, 144, V4L2_PIX_FMT_SN9C10X, V4L2_FIELD_NONE,
diff --git a/drivers/media/video/gspca/sonixj.c b/drivers/media/video/gspca/sonixj.c
index d75b1d2..572b0f3 100644
--- a/drivers/media/video/gspca/sonixj.c
+++ b/drivers/media/video/gspca/sonixj.c
@@ -707,6 +707,7 @@ static void i2c_w8(struct gspca_dev *gspca_dev,
 			0x08, 0,		/* value, index */
 			gspca_dev->usb_buf, 8,
 			500);
+	msleep(2);
 }
 
 /* read 5 bytes in gspca_dev->usb_buf */
@@ -976,13 +977,13 @@ static int sd_init(struct gspca_dev *gspca_dev)
 	case BRIDGE_SN9C105:
 		if (regF1 != 0x11)
 			return -ENODEV;
-		reg_w(gspca_dev, 0x02, regGpio, 2);
+		reg_w(gspca_dev, 0x01, regGpio, 2);
 		break;
 	case BRIDGE_SN9C120:
 		if (regF1 != 0x12)
 			return -ENODEV;
 		regGpio[1] = 0x70;
-		reg_w(gspca_dev, 0x02, regGpio, 2);
+		reg_w(gspca_dev, 0x01, regGpio, 2);
 		break;
 	default:
 /*	case BRIDGE_SN9C110: */
@@ -1183,7 +1184,7 @@ static void sd_start(struct gspca_dev *gspca_dev)
 	static const __u8 CA[] = { 0x28, 0xd8, 0x14, 0xec };
 	static const __u8 CE[] = { 0x32, 0xdd, 0x2d, 0xdd };	/* MI0360 */
 	static const __u8 CE_ov76xx[] =
-			{ 0x32, 0xdd, 0x32, 0xdd };	/* OV7630/48 */
+				{ 0x32, 0xdd, 0x32, 0xdd };
 
 	sn9c1xx = sn_tb[(int) sd->sensor];
 	configure_gpio(gspca_dev, sn9c1xx);
@@ -1223,8 +1224,15 @@ static void sd_start(struct gspca_dev *gspca_dev)
 	reg_w(gspca_dev, 0x20, gamma_def, sizeof gamma_def);
 	for (i = 0; i < 8; i++)
 		reg_w(gspca_dev, 0x84, reg84, sizeof reg84);
+	switch (sd->sensor) {
+	case SENSOR_OV7660:
+		reg_w1(gspca_dev, 0x9a, 0x05);
+		break;
+	default:
 		reg_w1(gspca_dev, 0x9a, 0x08);
 		reg_w1(gspca_dev, 0x99, 0x59);
+		break;
+	}
 
 	mode = gspca_dev->cam.cam_mode[(int) gspca_dev->curr_mode].priv;
 	if (mode)
@@ -1275,8 +1283,8 @@ static void sd_start(struct gspca_dev *gspca_dev)
 /*			reg1 = 0x44; */
 /*			reg1 = 0x46;	(done) */
 		} else {
-			reg17 = 0x22;	/* 640 MCKSIZE */
-			reg1 = 0x06;
+			reg17 = 0xa2;	/* 640 */
+			reg1 = 0x44;
 		}
 		break;
 	}
@@ -1285,6 +1293,7 @@ static void sd_start(struct gspca_dev *gspca_dev)
 	switch (sd->sensor) {
 	case SENSOR_OV7630:
 	case SENSOR_OV7648:
+	case SENSOR_OV7660:
 		reg_w(gspca_dev, 0xce, CE_ov76xx, 4);
 		break;
 	default:
diff --git a/drivers/media/video/gspca/spca561.c b/drivers/media/video/gspca/spca561.c
index cfbc9eb..95fcfcb 100644
--- a/drivers/media/video/gspca/spca561.c
+++ b/drivers/media/video/gspca/spca561.c
@@ -225,7 +225,7 @@ static int i2c_read(struct gspca_dev *gspca_dev, __u16 reg, __u8 mode)
 	reg_w_val(gspca_dev->dev, 0x8802, (mode | 0x01));
 	do {
 		reg_r(gspca_dev, 0x8803, 1);
-		if (!gspca_dev->usb_buf)
+		if (!gspca_dev->usb_buf[0])
 			break;
 	} while (--retry);
 	if (retry == 0)
diff --git a/drivers/media/video/gspca/zc3xx.c b/drivers/media/video/gspca/zc3xx.c
index 8d7c27e..d61ef72 100644
--- a/drivers/media/video/gspca/zc3xx.c
+++ b/drivers/media/video/gspca/zc3xx.c
@@ -6576,8 +6576,8 @@ static int setlightfreq(struct gspca_dev *gspca_dev)
 		 cs2102_60HZ, cs2102_60HZScale},
 /* SENSOR_CS2102K 1 */
 		{cs2102_NoFliker, cs2102_NoFlikerScale,
-		 cs2102_50HZ, cs2102_50HZScale,
-		 cs2102_60HZ, cs2102_60HZScale},
+		 NULL, NULL, /* currently disabled */
+		 NULL, NULL},
 /* SENSOR_GC0305 2 */
 		{gc0305_NoFliker, gc0305_NoFliker,
 		 gc0305_50HZ, gc0305_50HZ,
diff --git a/drivers/media/video/ov511.c b/drivers/media/video/ov511.c
index 3d3c48d..c685240 100644
--- a/drivers/media/video/ov511.c
+++ b/drivers/media/video/ov511.c
@@ -3591,7 +3591,7 @@ static int
 ov51x_init_isoc(struct usb_ov511 *ov)
 {
 	struct urb *urb;
-	int fx, err, n, size;
+	int fx, err, n, i, size;
 
 	PDEBUG(3, "*** Initializing capture ***");
 
@@ -3662,6 +3662,8 @@ ov51x_init_isoc(struct usb_ov511 *ov)
 		urb = usb_alloc_urb(FRAMES_PER_DESC, GFP_KERNEL);
 		if (!urb) {
 			err("init isoc: usb_alloc_urb ret. NULL");
+			for (i = 0; i < n; i++)
+				usb_free_urb(ov->sbuf[i].urb);
 			return -ENOMEM;
 		}
 		ov->sbuf[n].urb = urb;
@@ -5651,7 +5653,7 @@ static ssize_t show_exposure(struct device *cd,
 	if (!ov->dev)
 		return -ENODEV;
 	sensor_get_exposure(ov, &exp);
-	return sprintf(buf, "%d\n", exp >> 8);
+	return sprintf(buf, "%d\n", exp);
 }
 static DEVICE_ATTR(exposure, S_IRUGO, show_exposure, NULL);
 
diff --git a/drivers/media/video/pvrusb2/pvrusb2-devattr.c b/drivers/media/video/pvrusb2/pvrusb2-devattr.c
index 88e1751..cbe2a34 100644
--- a/drivers/media/video/pvrusb2/pvrusb2-devattr.c
+++ b/drivers/media/video/pvrusb2/pvrusb2-devattr.c
@@ -489,6 +489,8 @@ static const struct pvr2_device_desc pvr2_device_751xx = {
 struct usb_device_id pvr2_device_table[] = {
 	{ USB_DEVICE(0x2040, 0x2900),
 	  .driver_info = (kernel_ulong_t)&pvr2_device_29xxx},
+	{ USB_DEVICE(0x2040, 0x2950), /* Logically identical to 2900 */
+	  .driver_info = (kernel_ulong_t)&pvr2_device_29xxx},
 	{ USB_DEVICE(0x2040, 0x2400),
 	  .driver_info = (kernel_ulong_t)&pvr2_device_24xxx},
 	{ USB_DEVICE(0x1164, 0x0622),
diff --git a/drivers/media/video/s2255drv.c b/drivers/media/video/s2255drv.c
index b1d09d8..92b83fe 100644
--- a/drivers/media/video/s2255drv.c
+++ b/drivers/media/video/s2255drv.c
@@ -669,7 +669,7 @@ static void s2255_fillbuff(struct s2255_dev *dev, struct s2255_buffer *buf,
 		(unsigned long)vbuf, pos);
 	/* tell v4l buffer was filled */
 
-	buf->vb.field_count++;
+	buf->vb.field_count = dev->frame_count[chn] * 2;
 	do_gettimeofday(&ts);
 	buf->vb.ts = ts;
 	buf->vb.state = VIDEOBUF_DONE;
@@ -1268,6 +1268,7 @@ static int vidioc_streamon(struct file *file, void *priv, enum v4l2_buf_type i)
 	dev->last_frame[chn] = -1;
 	dev->bad_payload[chn] = 0;
 	dev->cur_frame[chn] = 0;
+	dev->frame_count[chn] = 0;
 	for (j = 0; j < SYS_FRAMES; j++) {
 		dev->buffer[chn].frame[j].ulState = 0;
 		dev->buffer[chn].frame[j].cur_size = 0;
diff --git a/drivers/media/video/uvc/uvc_ctrl.c b/drivers/media/video/uvc/uvc_ctrl.c
index 6ef3e52..feab12a 100644
--- a/drivers/media/video/uvc/uvc_ctrl.c
+++ b/drivers/media/video/uvc/uvc_ctrl.c
@@ -592,7 +592,7 @@ int uvc_query_v4l2_ctrl(struct uvc_video_device *video,
 	if (ctrl == NULL)
 		return -EINVAL;
 
-	data = kmalloc(8, GFP_KERNEL);
+	data = kmalloc(ctrl->info->size, GFP_KERNEL);
 	if (data == NULL)
 		return -ENOMEM;
 
diff --git a/drivers/media/video/w9968cf.c b/drivers/media/video/w9968cf.c
index 168baab..11edf79 100644
--- a/drivers/media/video/w9968cf.c
+++ b/drivers/media/video/w9968cf.c
@@ -911,7 +911,6 @@ static int w9968cf_start_transfer(struct w9968cf_device* cam)
 
 	for (i = 0; i < W9968CF_URBS; i++) {
 		urb = usb_alloc_urb(W9968CF_ISO_PACKETS, GFP_KERNEL);
-		cam->urb[i] = urb;
 		if (!urb) {
 			for (j = 0; j < i; j++)
 				usb_free_urb(cam->urb[j]);
@@ -919,6 +918,7 @@ static int w9968cf_start_transfer(struct w9968cf_device* cam)
 			return -ENOMEM;
 		}
 
+		cam->urb[i] = urb;
 		urb->dev = udev;
 		urb->context = (void*)cam;
 		urb->pipe = usb_rcvisocpipe(udev, 1);
diff --git a/drivers/media/video/wm8739.c b/drivers/media/video/wm8739.c
index 95c79ad..54ac3fe 100644
--- a/drivers/media/video/wm8739.c
+++ b/drivers/media/video/wm8739.c
@@ -274,10 +274,8 @@ static int wm8739_probe(struct i2c_client *client,
 			client->addr << 1, client->adapter->name);
 
 	state = kmalloc(sizeof(struct wm8739_state), GFP_KERNEL);
-	if (state == NULL) {
-		kfree(client);
+	if (state == NULL)
 		return -ENOMEM;
-	}
 	state->vol_l = 0x17; /* 0dB */
 	state->vol_r = 0x17; /* 0dB */
 	state->muted = 0;
diff --git a/drivers/media/video/zoran_card.c b/drivers/media/video/zoran_card.c
index d842a7c..3282be7 100644
--- a/drivers/media/video/zoran_card.c
+++ b/drivers/media/video/zoran_card.c
@@ -988,7 +988,7 @@ zoran_open_init_params (struct zoran *zr)
 	zr->v4l_grab_seq = 0;
 	zr->v4l_settings.width = 192;
 	zr->v4l_settings.height = 144;
-	zr->v4l_settings.format = &zoran_formats[4];	/* YUY2 - YUV-4:2:2 packed */
+	zr->v4l_settings.format = &zoran_formats[7];	/* YUY2 - YUV-4:2:2 packed */
 	zr->v4l_settings.bytesperline =
 	    zr->v4l_settings.width *
 	    ((zr->v4l_settings.format->depth + 7) / 8);
diff --git a/drivers/media/video/zoran_driver.c b/drivers/media/video/zoran_driver.c
index ec6f596..2dab9ee 100644
--- a/drivers/media/video/zoran_driver.c
+++ b/drivers/media/video/zoran_driver.c
@@ -134,7 +134,7 @@ const struct zoran_format zoran_formats[] = {
 	}, {
 		.name = "16-bit RGB BE",
 		ZFMT(-1,
-		     V4L2_PIX_FMT_RGB565, V4L2_COLORSPACE_SRGB),
+		     V4L2_PIX_FMT_RGB565X, V4L2_COLORSPACE_SRGB),
 		.depth = 16,
 		.flags = ZORAN_FORMAT_CAPTURE |
 			 ZORAN_FORMAT_OVERLAY,
@@ -2737,7 +2737,8 @@ zoran_do_ioctl (struct inode *inode,
 				    fh->v4l_settings.format->fourcc;
 				fmt->fmt.pix.colorspace =
 				    fh->v4l_settings.format->colorspace;
-				fmt->fmt.pix.bytesperline = 0;
+				fmt->fmt.pix.bytesperline =
+				    fh->v4l_settings.bytesperline;
 				if (BUZ_MAX_HEIGHT <
 				    (fh->v4l_settings.height * 2))
 					fmt->fmt.pix.field =
@@ -2833,13 +2834,6 @@ zoran_do_ioctl (struct inode *inode,
 				fmt->fmt.pix.pixelformat,
 				(char *) &printformat);
 
-			if (fmt->fmt.pix.bytesperline > 0) {
-				dprintk(5,
-					KERN_ERR "%s: bpl not supported\n",
-					ZR_DEVNAME(zr));
-				return -EINVAL;
-			}
-
 			/* we can be requested to do JPEG/raw playback/capture */
 			if (!
 			    (fmt->type == V4L2_BUF_TYPE_VIDEO_CAPTURE ||
@@ -2923,6 +2917,7 @@ zoran_do_ioctl (struct inode *inode,
 				fh->jpg_buffers.buffer_size =
 				    zoran_v4l2_calc_bufsize(&fh->
 							    jpg_settings);
+				fmt->fmt.pix.bytesperline = 0;
 				fmt->fmt.pix.sizeimage =
 				    fh->jpg_buffers.buffer_size;
 
@@ -2979,6 +2974,8 @@ zoran_do_ioctl (struct inode *inode,
 
 				/* tell the user the
 				 * results/missing stuff */
+				fmt->fmt.pix.bytesperline =
+					fh->v4l_settings.bytesperline;
 				fmt->fmt.pix.sizeimage =
 					fh->v4l_settings.height *
 					fh->v4l_settings.bytesperline;
diff --git a/drivers/mfd/Kconfig b/drivers/mfd/Kconfig
index 10c44d3..68dc8d9 100644
--- a/drivers/mfd/Kconfig
+++ b/drivers/mfd/Kconfig
@@ -21,7 +21,7 @@ config MFD_SM501
 
 config MFD_SM501_GPIO
 	bool "Export GPIO via GPIO layer"
-	depends on MFD_SM501 && HAVE_GPIO_LIB
+	depends on MFD_SM501 && GPIOLIB
 	 ---help---
 	 This option uses the gpio library layer to export the 64 GPIO
 	 lines on the SM501. The platform data is used to supply the
@@ -29,7 +29,7 @@ config MFD_SM501_GPIO
 
 config MFD_ASIC3
 	bool "Support for Compaq ASIC3"
-	depends on GENERIC_HARDIRQS && HAVE_GPIO_LIB && ARM
+	depends on GENERIC_HARDIRQS && GPIOLIB && ARM
 	 ---help---
 	  This driver supports the ASIC3 multifunction chip found on many
 	  PDAs (mainly iPAQ and HTC based ones)
diff --git a/drivers/mfd/asic3.c b/drivers/mfd/asic3.c
index bc2a807..ba5aa20 100644
--- a/drivers/mfd/asic3.c
+++ b/drivers/mfd/asic3.c
@@ -312,7 +312,6 @@ static int __init asic3_irq_probe(struct platform_device *pdev)
 	struct asic3 *asic = platform_get_drvdata(pdev);
 	unsigned long clksel = 0;
 	unsigned int irq, irq_base;
-	int map_size;
 	int ret;
 
 	ret = platform_get_irq(pdev, 0);
@@ -534,6 +533,7 @@ static int __init asic3_probe(struct platform_device *pdev)
 	struct asic3 *asic;
 	struct resource *mem;
 	unsigned long clksel;
+	int map_size;
 	int ret = 0;
 
 	asic = kzalloc(sizeof(struct asic3), GFP_KERNEL);
diff --git a/drivers/mmc/host/atmel-mci.c b/drivers/mmc/host/atmel-mci.c
index 917035e..0000896 100644
--- a/drivers/mmc/host/atmel-mci.c
+++ b/drivers/mmc/host/atmel-mci.c
@@ -426,8 +426,6 @@ static u32 atmci_submit_data(struct mmc_host *mmc, struct mmc_data *data)
 	host->sg = NULL;
 	host->data = data;
 
-	mci_writel(host, BLKR, MCI_BCNT(data->blocks)
-			| MCI_BLKLEN(data->blksz));
 	dev_vdbg(&mmc->class_dev, "BLKR=0x%08x\n",
 			MCI_BCNT(data->blocks) | MCI_BLKLEN(data->blksz));
 
@@ -483,6 +481,10 @@ static void atmci_request(struct mmc_host *mmc, struct mmc_request *mrq)
 		if (data->blocks > 1 && data->blksz & 3)
 			goto fail;
 		atmci_set_timeout(host, data);
+
+		/* Must set block count/size before sending command */
+		mci_writel(host, BLKR, MCI_BCNT(data->blocks)
+				| MCI_BLKLEN(data->blksz));
 	}
 
 	iflags = MCI_CMDRDY;
diff --git a/drivers/net/e1000e/e1000.h b/drivers/net/e1000e/e1000.h
index ac4e506..5ea6b60 100644
--- a/drivers/net/e1000e/e1000.h
+++ b/drivers/net/e1000e/e1000.h
@@ -257,7 +257,6 @@ struct e1000_adapter {
 	struct net_device *netdev;
 	struct pci_dev *pdev;
 	struct net_device_stats net_stats;
-	spinlock_t stats_lock;      /* prevent concurrent stats updates */
 
 	/* structs defined in e1000_hw.h */
 	struct e1000_hw hw;
@@ -284,6 +283,8 @@ struct e1000_adapter {
 	unsigned long led_status;
 
 	unsigned int flags;
+	struct work_struct downshift_task;
+	struct work_struct update_phy_task;
 };
 
 struct e1000_info {
@@ -305,6 +306,7 @@ struct e1000_info {
 #define FLAG_HAS_CTRLEXT_ON_LOAD          (1 << 5)
 #define FLAG_HAS_SWSM_ON_LOAD             (1 << 6)
 #define FLAG_HAS_JUMBO_FRAMES             (1 << 7)
+#define FLAG_READ_ONLY_NVM                (1 << 8)
 #define FLAG_IS_ICH                       (1 << 9)
 #define FLAG_HAS_SMART_POWER_DOWN         (1 << 11)
 #define FLAG_IS_QUAD_PORT_A               (1 << 12)
@@ -385,6 +387,7 @@ extern bool e1000e_enable_mng_pass_thru(struct e1000_hw *hw);
 extern bool e1000e_get_laa_state_82571(struct e1000_hw *hw);
 extern void e1000e_set_laa_state_82571(struct e1000_hw *hw, bool state);
 
+extern void e1000e_write_protect_nvm_ich8lan(struct e1000_hw *hw);
 extern void e1000e_set_kmrn_lock_loss_workaround_ich8lan(struct e1000_hw *hw,
 						 bool state);
 extern void e1000e_igp3_phy_powerdown_workaround_ich8lan(struct e1000_hw *hw);
diff --git a/drivers/net/e1000e/ethtool.c b/drivers/net/e1000e/ethtool.c
index e21c9e0..33a3ff1 100644
--- a/drivers/net/e1000e/ethtool.c
+++ b/drivers/net/e1000e/ethtool.c
@@ -432,6 +432,10 @@ static void e1000_get_regs(struct net_device *netdev,
 	regs_buff[11] = er32(TIDV);
 
 	regs_buff[12] = adapter->hw.phy.type;  /* PHY type (IGP=1, M88=0) */
+
+	/* ethtool doesn't use anything past this point, so all this
+	 * code is likely legacy junk for apps that may or may not
+	 * exist */
 	if (hw->phy.type == e1000_phy_m88) {
 		e1e_rphy(hw, M88E1000_PHY_SPEC_STATUS, &phy_data);
 		regs_buff[13] = (u32)phy_data; /* cable length */
@@ -447,7 +451,7 @@ static void e1000_get_regs(struct net_device *netdev,
 		regs_buff[22] = adapter->phy_stats.receive_errors;
 		regs_buff[23] = regs_buff[13]; /* mdix mode */
 	}
-	regs_buff[21] = adapter->phy_stats.idle_errors;  /* phy idle errors */
+	regs_buff[21] = 0; /* was idle_errors */
 	e1e_rphy(hw, PHY_1000T_STATUS, &phy_data);
 	regs_buff[24] = (u32)phy_data;  /* phy local receiver status */
 	regs_buff[25] = regs_buff[24];  /* phy remote receiver status */
@@ -529,6 +533,9 @@ static int e1000_set_eeprom(struct net_device *netdev,
 	if (eeprom->magic != (adapter->pdev->vendor | (adapter->pdev->device << 16)))
 		return -EFAULT;
 
+	if (adapter->flags & FLAG_READ_ONLY_NVM)
+		return -EINVAL;
+
 	max_len = hw->nvm.word_size * 2;
 
 	first_word = eeprom->offset >> 1;
diff --git a/drivers/net/e1000e/ich8lan.c b/drivers/net/e1000e/ich8lan.c
index 9e38452..bcd2bc4 100644
--- a/drivers/net/e1000e/ich8lan.c
+++ b/drivers/net/e1000e/ich8lan.c
@@ -58,6 +58,7 @@
 #define ICH_FLASH_HSFCTL		0x0006
 #define ICH_FLASH_FADDR			0x0008
 #define ICH_FLASH_FDATA0		0x0010
+#define ICH_FLASH_PR0			0x0074
 
 #define ICH_FLASH_READ_COMMAND_TIMEOUT	500
 #define ICH_FLASH_WRITE_COMMAND_TIMEOUT	500
@@ -150,6 +151,19 @@ union ich8_hws_flash_regacc {
 	u16 regval;
 };
 
+/* ICH Flash Protected Region */
+union ich8_flash_protected_range {
+	struct ich8_pr {
+		u32 base:13;     /* 0:12 Protected Range Base */
+		u32 reserved1:2; /* 13:14 Reserved */
+		u32 rpe:1;       /* 15 Read Protection Enable */
+		u32 limit:13;    /* 16:28 Protected Range Limit */
+		u32 reserved2:2; /* 29:30 Reserved */
+		u32 wpe:1;       /* 31 Write Protection Enable */
+	} range;
+	u32 regval;
+};
+
 static s32 e1000_setup_link_ich8lan(struct e1000_hw *hw);
 static void e1000_clear_hw_cntrs_ich8lan(struct e1000_hw *hw);
 static void e1000_initialize_hw_bits_ich8lan(struct e1000_hw *hw);
@@ -366,6 +380,9 @@ static s32 e1000_get_variants_ich8lan(struct e1000_adapter *adapter)
 	return 0;
 }
 
+static DEFINE_MUTEX(nvm_mutex);
+static pid_t nvm_owner = -1;
+
 /**
  *  e1000_acquire_swflag_ich8lan - Acquire software control flag
  *  @hw: pointer to the HW structure
@@ -379,6 +396,15 @@ static s32 e1000_acquire_swflag_ich8lan(struct e1000_hw *hw)
 	u32 extcnf_ctrl;
 	u32 timeout = PHY_CFG_TIMEOUT;
 
+	might_sleep();
+
+	if (!mutex_trylock(&nvm_mutex)) {
+		WARN(1, KERN_ERR "e1000e mutex contention. Owned by pid %d\n",
+		     nvm_owner);
+		mutex_lock(&nvm_mutex);
+	}
+	nvm_owner = current->pid;
+
 	while (timeout) {
 		extcnf_ctrl = er32(EXTCNF_CTRL);
 		extcnf_ctrl |= E1000_EXTCNF_CTRL_SWFLAG;
@@ -393,6 +419,8 @@ static s32 e1000_acquire_swflag_ich8lan(struct e1000_hw *hw)
 
 	if (!timeout) {
 		hw_dbg(hw, "FW or HW has locked the resource for too long.\n");
+		nvm_owner = -1;
+		mutex_unlock(&nvm_mutex);
 		return -E1000_ERR_CONFIG;
 	}
 
@@ -414,6 +442,9 @@ static void e1000_release_swflag_ich8lan(struct e1000_hw *hw)
 	extcnf_ctrl = er32(EXTCNF_CTRL);
 	extcnf_ctrl &= ~E1000_EXTCNF_CTRL_SWFLAG;
 	ew32(EXTCNF_CTRL, extcnf_ctrl);
+
+	nvm_owner = -1;
+	mutex_unlock(&nvm_mutex);
 }
 
 /**
@@ -1284,6 +1315,7 @@ static s32 e1000_update_nvm_checksum_ich8lan(struct e1000_hw *hw)
 	 * programming failed.
 	 */
 	if (ret_val) {
+		/* Possibly read-only, see e1000e_write_protect_nvm_ich8lan() */
 		hw_dbg(hw, "Flash commit failed.\n");
 		e1000_release_swflag_ich8lan(hw);
 		return ret_val;
@@ -1374,6 +1406,49 @@ static s32 e1000_validate_nvm_checksum_ich8lan(struct e1000_hw *hw)
 }
 
 /**
+ *  e1000e_write_protect_nvm_ich8lan - Make the NVM read-only
+ *  @hw: pointer to the HW structure
+ *
+ *  To prevent malicious write/erase of the NVM, set it to be read-only
+ *  so that the hardware ignores all write/erase cycles of the NVM via
+ *  the flash control registers.  The shadow-ram copy of the NVM will
+ *  still be updated, however any updates to this copy will not stick
+ *  across driver reloads.
+ **/
+void e1000e_write_protect_nvm_ich8lan(struct e1000_hw *hw)
+{
+	union ich8_flash_protected_range pr0;
+	union ich8_hws_flash_status hsfsts;
+	u32 gfpreg;
+	s32 ret_val;
+
+	ret_val = e1000_acquire_swflag_ich8lan(hw);
+	if (ret_val)
+		return;
+
+	gfpreg = er32flash(ICH_FLASH_GFPREG);
+
+	/* Write-protect GbE Sector of NVM */
+	pr0.regval = er32flash(ICH_FLASH_PR0);
+	pr0.range.base = gfpreg & FLASH_GFPREG_BASE_MASK;
+	pr0.range.limit = ((gfpreg >> 16) & FLASH_GFPREG_BASE_MASK);
+	pr0.range.wpe = true;
+	ew32flash(ICH_FLASH_PR0, pr0.regval);
+
+	/*
+	 * Lock down a subset of GbE Flash Control Registers, e.g.
+	 * PR0 to prevent the write-protection from being lifted.
+	 * Once FLOCKDN is set, the registers protected by it cannot
+	 * be written until FLOCKDN is cleared by a hardware reset.
+	 */
+	hsfsts.regval = er16flash(ICH_FLASH_HSFSTS);
+	hsfsts.hsf_status.flockdn = true;
+	ew32flash(ICH_FLASH_HSFSTS, hsfsts.regval);
+
+	e1000_release_swflag_ich8lan(hw);
+}
+
+/**
  *  e1000_write_flash_data_ich8lan - Writes bytes to the NVM
  *  @hw: pointer to the HW structure
  *  @offset: The offset (in bytes) of the byte/word to read.
@@ -1720,6 +1795,9 @@ static s32 e1000_reset_hw_ich8lan(struct e1000_hw *hw)
 	ew32(CTRL, (ctrl | E1000_CTRL_RST));
 	msleep(20);
 
+	/* release the swflag because it is not reset by hardware reset */
+	e1000_release_swflag_ich8lan(hw);
+
 	ret_val = e1000e_get_auto_rd_done(hw);
 	if (ret_val) {
 		/*
diff --git a/drivers/net/e1000e/netdev.c b/drivers/net/e1000e/netdev.c
index d266510..b81c423 100644
--- a/drivers/net/e1000e/netdev.c
+++ b/drivers/net/e1000e/netdev.c
@@ -47,7 +47,7 @@
 
 #include "e1000.h"
 
-#define DRV_VERSION "0.3.3.3-k2"
+#define DRV_VERSION "0.3.3.3-k6"
 char e1000e_driver_name[] = "e1000e";
 const char e1000e_driver_version[] = DRV_VERSION;
 
@@ -1115,6 +1115,14 @@ static void e1000_clean_rx_ring(struct e1000_adapter *adapter)
 	writel(0, adapter->hw.hw_addr + rx_ring->tail);
 }
 
+static void e1000e_downshift_workaround(struct work_struct *work)
+{
+	struct e1000_adapter *adapter = container_of(work,
+					struct e1000_adapter, downshift_task);
+
+	e1000e_gig_downshift_workaround_ich8lan(&adapter->hw);
+}
+
 /**
  * e1000_intr_msi - Interrupt Handler
  * @irq: interrupt number
@@ -1139,7 +1147,7 @@ static irqreturn_t e1000_intr_msi(int irq, void *data)
 		 */
 		if ((adapter->flags & FLAG_LSC_GIG_SPEED_DROP) &&
 		    (!(er32(STATUS) & E1000_STATUS_LU)))
-			e1000e_gig_downshift_workaround_ich8lan(hw);
+			schedule_work(&adapter->downshift_task);
 
 		/*
 		 * 80003ES2LAN workaround-- For packet buffer work-around on
@@ -1205,7 +1213,7 @@ static irqreturn_t e1000_intr(int irq, void *data)
 		 */
 		if ((adapter->flags & FLAG_LSC_GIG_SPEED_DROP) &&
 		    (!(er32(STATUS) & E1000_STATUS_LU)))
-			e1000e_gig_downshift_workaround_ich8lan(hw);
+			schedule_work(&adapter->downshift_task);
 
 		/*
 		 * 80003ES2LAN workaround--
@@ -2592,8 +2600,6 @@ static int __devinit e1000_sw_init(struct e1000_adapter *adapter)
 	/* Explicitly disable IRQ since the NIC can be in any state. */
 	e1000_irq_disable(adapter);
 
-	spin_lock_init(&adapter->stats_lock);
-
 	set_bit(__E1000_DOWN, &adapter->state);
 	return 0;
 
@@ -2912,6 +2918,21 @@ static int e1000_set_mac(struct net_device *netdev, void *p)
 	return 0;
 }
 
+/**
+ * e1000e_update_phy_task - work thread to update phy
+ * @work: pointer to our work struct
+ *
+ * this worker thread exists because we must acquire a
+ * semaphore to read the phy, which we could msleep while
+ * waiting for it, and we can't msleep in a timer.
+ **/
+static void e1000e_update_phy_task(struct work_struct *work)
+{
+	struct e1000_adapter *adapter = container_of(work,
+					struct e1000_adapter, update_phy_task);
+	e1000_get_phy_info(&adapter->hw);
+}
+
 /*
  * Need to wait a few seconds after link up to get diagnostic information from
  * the phy
@@ -2919,7 +2940,7 @@ static int e1000_set_mac(struct net_device *netdev, void *p)
 static void e1000_update_phy_info(unsigned long data)
 {
 	struct e1000_adapter *adapter = (struct e1000_adapter *) data;
-	e1000_get_phy_info(&adapter->hw);
+	schedule_work(&adapter->update_phy_task);
 }
 
 /**
@@ -2930,10 +2951,6 @@ void e1000e_update_stats(struct e1000_adapter *adapter)
 {
 	struct e1000_hw *hw = &adapter->hw;
 	struct pci_dev *pdev = adapter->pdev;
-	unsigned long irq_flags;
-	u16 phy_tmp;
-
-#define PHY_IDLE_ERROR_COUNT_MASK 0x00FF
 
 	/*
 	 * Prevent stats update while adapter is being reset, or if the pci
@@ -2944,14 +2961,6 @@ void e1000e_update_stats(struct e1000_adapter *adapter)
 	if (pci_channel_offline(pdev))
 		return;
 
-	spin_lock_irqsave(&adapter->stats_lock, irq_flags);
-
-	/*
-	 * these counters are modified from e1000_adjust_tbi_stats,
-	 * called from the interrupt context, so they must only
-	 * be written while holding adapter->stats_lock
-	 */
-
 	adapter->stats.crcerrs += er32(CRCERRS);
 	adapter->stats.gprc += er32(GPRC);
 	adapter->stats.gorc += er32(GORCL);
@@ -3022,21 +3031,10 @@ void e1000e_update_stats(struct e1000_adapter *adapter)
 
 	/* Tx Dropped needs to be maintained elsewhere */
 
-	/* Phy Stats */
-	if (hw->phy.media_type == e1000_media_type_copper) {
-		if ((adapter->link_speed == SPEED_1000) &&
-		   (!e1e_rphy(hw, PHY_1000T_STATUS, &phy_tmp))) {
-			phy_tmp &= PHY_IDLE_ERROR_COUNT_MASK;
-			adapter->phy_stats.idle_errors += phy_tmp;
-		}
-	}
-
 	/* Management Stats */
 	adapter->stats.mgptc += er32(MGTPTC);
 	adapter->stats.mgprc += er32(MGTPRC);
 	adapter->stats.mgpdc += er32(MGTPDC);
-
-	spin_unlock_irqrestore(&adapter->stats_lock, irq_flags);
 }
 
 /**
@@ -3048,10 +3046,6 @@ static void e1000_phy_read_status(struct e1000_adapter *adapter)
 	struct e1000_hw *hw = &adapter->hw;
 	struct e1000_phy_regs *phy = &adapter->phy_regs;
 	int ret_val;
-	unsigned long irq_flags;
-
-
-	spin_lock_irqsave(&adapter->stats_lock, irq_flags);
 
 	if ((er32(STATUS) & E1000_STATUS_LU) &&
 	    (adapter->hw.phy.media_type == e1000_media_type_copper)) {
@@ -3082,8 +3076,6 @@ static void e1000_phy_read_status(struct e1000_adapter *adapter)
 		phy->stat1000 = 0;
 		phy->estatus = (ESTATUS_1000_TFULL | ESTATUS_1000_THALF);
 	}
-
-	spin_unlock_irqrestore(&adapter->stats_lock, irq_flags);
 }
 
 static void e1000_print_link_info(struct e1000_adapter *adapter)
@@ -4467,6 +4459,8 @@ static int __devinit e1000_probe(struct pci_dev *pdev,
 
 	adapter->bd_number = cards_found++;
 
+	e1000e_check_options(adapter);
+
 	/* setup adapter struct */
 	err = e1000_sw_init(adapter);
 	if (err)
@@ -4482,6 +4476,10 @@ static int __devinit e1000_probe(struct pci_dev *pdev,
 	if (err)
 		goto err_hw_init;
 
+	if ((adapter->flags & FLAG_IS_ICH) &&
+	    (adapter->flags & FLAG_READ_ONLY_NVM))
+		e1000e_write_protect_nvm_ich8lan(&adapter->hw);
+
 	hw->mac.ops.get_bus_info(&adapter->hw);
 
 	adapter->hw.phy.autoneg_wait_to_complete = 0;
@@ -4572,8 +4570,8 @@ static int __devinit e1000_probe(struct pci_dev *pdev,
 
 	INIT_WORK(&adapter->reset_task, e1000_reset_task);
 	INIT_WORK(&adapter->watchdog_task, e1000_watchdog_task);
-
-	e1000e_check_options(adapter);
+	INIT_WORK(&adapter->downshift_task, e1000e_downshift_workaround);
+	INIT_WORK(&adapter->update_phy_task, e1000e_update_phy_task);
 
 	/* Initialize link parameters. User can change them with ethtool */
 	adapter->hw.mac.autoneg = 1;
diff --git a/drivers/net/e1000e/param.c b/drivers/net/e1000e/param.c
index ed912e0..d91dbf7 100644
--- a/drivers/net/e1000e/param.c
+++ b/drivers/net/e1000e/param.c
@@ -133,6 +133,15 @@ E1000_PARAM(SmartPowerDownEnable, "Enable PHY smart power down");
  */
 E1000_PARAM(KumeranLockLoss, "Enable Kumeran lock loss workaround");
 
+/*
+ * Write Protect NVM
+ *
+ * Valid Range: 0, 1
+ *
+ * Default Value: 1 (enabled)
+ */
+E1000_PARAM(WriteProtectNVM, "Write-protect NVM [WARNING: disabling this can lead to corrupted NVM]");
+
 struct e1000_option {
 	enum { enable_option, range_option, list_option } type;
 	const char *name;
@@ -388,4 +397,25 @@ void __devinit e1000e_check_options(struct e1000_adapter *adapter)
 								       opt.def);
 		}
 	}
+	{ /* Write-protect NVM */
+		const struct e1000_option opt = {
+			.type = enable_option,
+			.name = "Write-protect NVM",
+			.err  = "defaulting to Enabled",
+			.def  = OPTION_ENABLED
+		};
+
+		if (adapter->flags & FLAG_IS_ICH) {
+			if (num_WriteProtectNVM > bd) {
+				unsigned int write_protect_nvm = WriteProtectNVM[bd];
+				e1000_validate_option(&write_protect_nvm, &opt,
+						      adapter);
+				if (write_protect_nvm)
+					adapter->flags |= FLAG_READ_ONLY_NVM;
+			} else {
+				if (opt.def)
+					adapter->flags |= FLAG_READ_ONLY_NVM;
+			}
+		}
+	}
 }
diff --git a/drivers/pci/pci-sysfs.c b/drivers/pci/pci-sysfs.c
index 9c71858..77baff0 100644
--- a/drivers/pci/pci-sysfs.c
+++ b/drivers/pci/pci-sysfs.c
@@ -16,6 +16,7 @@
 
 
 #include <linux/kernel.h>
+#include <linux/sched.h>
 #include <linux/pci.h>
 #include <linux/stat.h>
 #include <linux/topology.h>
@@ -484,6 +485,21 @@ pci_mmap_legacy_mem(struct kobject *kobj, struct bin_attribute *attr,
 #endif /* HAVE_PCI_LEGACY */
 
 #ifdef HAVE_PCI_MMAP
+
+static int pci_mmap_fits(struct pci_dev *pdev, int resno, struct vm_area_struct *vma)
+{
+	unsigned long nr, start, size;
+
+	nr = (vma->vm_end - vma->vm_start) >> PAGE_SHIFT;
+	start = vma->vm_pgoff;
+	size = pci_resource_len(pdev, resno) >> PAGE_SHIFT;
+	if (start < size && size - start >= nr)
+		return 1;
+	WARN(1, "process \"%s\" tried to map 0x%08lx-0x%08lx on %s BAR %d (size 0x%08lx)\n",
+		current->comm, start, start+nr, pci_name(pdev), resno, size);
+	return 0;
+}
+
 /**
  * pci_mmap_resource - map a PCI resource into user memory space
  * @kobj: kobject for mapping
@@ -510,6 +526,9 @@ pci_mmap_resource(struct kobject *kobj, struct bin_attribute *attr,
 	if (i >= PCI_ROM_RESOURCE)
 		return -ENODEV;
 
+	if (!pci_mmap_fits(pdev, i, vma))
+		return -EINVAL;
+
 	/* pci_mmap_page_range() expects the same kind of entry as coming
 	 * from /proc/bus/pci/ which is a "user visible" value. If this is
 	 * different from the resource itself, arch will do necessary fixup.
diff --git a/drivers/rtc/rtc-dev.c b/drivers/rtc/rtc-dev.c
index f118252..52e2743 100644
--- a/drivers/rtc/rtc-dev.c
+++ b/drivers/rtc/rtc-dev.c
@@ -422,6 +422,12 @@ done:
 	return err;
 }
 
+static int rtc_dev_fasync(int fd, struct file *file, int on)
+{
+	struct rtc_device *rtc = file->private_data;
+	return fasync_helper(fd, file, on, &rtc->async_queue);
+}
+
 static int rtc_dev_release(struct inode *inode, struct file *file)
 {
 	struct rtc_device *rtc = file->private_data;
@@ -434,16 +440,13 @@ static int rtc_dev_release(struct inode *inode, struct file *file)
 	if (rtc->ops->release)
 		rtc->ops->release(rtc->dev.parent);
 
+	if (file->f_flags & FASYNC)
+		rtc_dev_fasync(-1, file, 0);
+
 	clear_bit_unlock(RTC_DEV_BUSY, &rtc->flags);
 	return 0;
 }
 
-static int rtc_dev_fasync(int fd, struct file *file, int on)
-{
-	struct rtc_device *rtc = file->private_data;
-	return fasync_helper(fd, file, on, &rtc->async_queue);
-}
-
 static const struct file_operations rtc_dev_fops = {
 	.owner		= THIS_MODULE,
 	.llseek		= no_llseek,
diff --git a/drivers/s390/cio/qdio_setup.c b/drivers/s390/cio/qdio_setup.c
index 1679e2f..a0b6b46 100644
--- a/drivers/s390/cio/qdio_setup.c
+++ b/drivers/s390/cio/qdio_setup.c
@@ -447,51 +447,36 @@ void qdio_print_subchannel_info(struct qdio_irq *irq_ptr,
 {
 	char s[80];
 
-	sprintf(s, "%s sc:%x ", cdev->dev.bus_id, irq_ptr->schid.sch_no);
-
+	sprintf(s, "qdio: %s ", dev_name(&cdev->dev));
 	switch (irq_ptr->qib.qfmt) {
 	case QDIO_QETH_QFMT:
-		sprintf(s + strlen(s), "OSADE ");
+		sprintf(s + strlen(s), "OSA ");
 		break;
 	case QDIO_ZFCP_QFMT:
 		sprintf(s + strlen(s), "ZFCP ");
 		break;
 	case QDIO_IQDIO_QFMT:
-		sprintf(s + strlen(s), "HiperSockets ");
+		sprintf(s + strlen(s), "HS ");
 		break;
 	}
-	sprintf(s + strlen(s), "using: ");
-
-	if (!is_thinint_irq(irq_ptr))
-		sprintf(s + strlen(s), "no");
-	sprintf(s + strlen(s), "AdapterInterrupts ");
-	if (!(irq_ptr->sch_token != 0))
-		sprintf(s + strlen(s), "no");
-	sprintf(s + strlen(s), "QEBSM ");
-	if (!(irq_ptr->qib.ac & QIB_AC_OUTBOUND_PCI_SUPPORTED))
-		sprintf(s + strlen(s), "no");
-	sprintf(s + strlen(s), "OutboundPCI ");
-	if (!css_general_characteristics.aif_tdd)
-		sprintf(s + strlen(s), "no");
-	sprintf(s + strlen(s), "TDD\n");
-	printk(KERN_INFO "qdio: %s", s);
-
-	memset(s, 0, sizeof(s));
-	sprintf(s, "%s SIGA required: ", cdev->dev.bus_id);
-	if (irq_ptr->siga_flag.input)
-		sprintf(s + strlen(s), "Read ");
-	if (irq_ptr->siga_flag.output)
-		sprintf(s + strlen(s), "Write ");
-	if (irq_ptr->siga_flag.sync)
-		sprintf(s + strlen(s), "Sync ");
-	if (!irq_ptr->siga_flag.no_sync_ti)
-		sprintf(s + strlen(s), "SyncAI ");
-	if (!irq_ptr->siga_flag.no_sync_out_ti)
-		sprintf(s + strlen(s), "SyncOutAI ");
-	if (!irq_ptr->siga_flag.no_sync_out_pci)
-		sprintf(s + strlen(s), "SyncOutPCI");
+	sprintf(s + strlen(s), "on SC %x using ", irq_ptr->schid.sch_no);
+	sprintf(s + strlen(s), "AI:%d ", is_thinint_irq(irq_ptr));
+	sprintf(s + strlen(s), "QEBSM:%d ", (irq_ptr->sch_token) ? 1 : 0);
+	sprintf(s + strlen(s), "PCI:%d ",
+		(irq_ptr->qib.ac & QIB_AC_OUTBOUND_PCI_SUPPORTED) ? 1 : 0);
+	sprintf(s + strlen(s), "TDD:%d ", css_general_characteristics.aif_tdd);
+	sprintf(s + strlen(s), "SIGA:");
+	sprintf(s + strlen(s), "%s", (irq_ptr->siga_flag.input) ? "R" : " ");
+	sprintf(s + strlen(s), "%s", (irq_ptr->siga_flag.output) ? "W" : " ");
+	sprintf(s + strlen(s), "%s", (irq_ptr->siga_flag.sync) ? "S" : " ");
+	sprintf(s + strlen(s), "%s",
+		(!irq_ptr->siga_flag.no_sync_ti) ? "A" : " ");
+	sprintf(s + strlen(s), "%s",
+		(!irq_ptr->siga_flag.no_sync_out_ti) ? "O" : " ");
+	sprintf(s + strlen(s), "%s",
+		(!irq_ptr->siga_flag.no_sync_out_pci) ? "P" : " ");
 	sprintf(s + strlen(s), "\n");
-	printk(KERN_INFO "qdio: %s", s);
+	printk(KERN_INFO "%s", s);
 }
 
 int __init qdio_setup_init(void)
diff --git a/drivers/spi/orion_spi.c b/drivers/spi/orion_spi.c
index c4eaacd..b872bfa 100644
--- a/drivers/spi/orion_spi.c
+++ b/drivers/spi/orion_spi.c
@@ -427,7 +427,7 @@ static int orion_spi_transfer(struct spi_device *spi, struct spi_message *m)
 			goto msg_rejected;
 		}
 
-		if (t->speed_hz < orion_spi->min_speed) {
+		if (t->speed_hz && t->speed_hz < orion_spi->min_speed) {
 			dev_err(&spi->dev,
 				"message rejected : "
 				"device min speed (%d Hz) exceeds "
diff --git a/drivers/spi/pxa2xx_spi.c b/drivers/spi/pxa2xx_spi.c
index 0e53354..d47d363 100644
--- a/drivers/spi/pxa2xx_spi.c
+++ b/drivers/spi/pxa2xx_spi.c
@@ -49,7 +49,7 @@ MODULE_ALIAS("platform:pxa2xx-spi");
 
 #define DMA_INT_MASK		(DCSR_ENDINTR | DCSR_STARTINTR | DCSR_BUSERR)
 #define RESET_DMA_CHANNEL	(DCSR_NODESC | DMA_INT_MASK)
-#define IS_DMA_ALIGNED(x)	(((x) & 0x07) == 0)
+#define IS_DMA_ALIGNED(x)	((((u32)(x)) & 0x07) == 0)
 #define MAX_DMA_LEN		8191
 
 /*
@@ -896,7 +896,7 @@ static void pump_transfers(unsigned long data)
 				|| transfer->rx_dma || transfer->tx_dma) {
 			dev_err(&drv_data->pdev->dev,
 				"pump_transfers: mapped transfer length "
-				"of %lu is greater than %d\n",
+				"of %u is greater than %d\n",
 				transfer->len, MAX_DMA_LEN);
 			message->status = -EINVAL;
 			giveback(drv_data);
diff --git a/drivers/video/console/fbcon.c b/drivers/video/console/fbcon.c
index c6299e8..9cbff84 100644
--- a/drivers/video/console/fbcon.c
+++ b/drivers/video/console/fbcon.c
@@ -2400,11 +2400,15 @@ static int fbcon_blank(struct vc_data *vc, int blank, int mode_switch)
 
  	if (!fbcon_is_inactive(vc, info)) {
 		if (ops->blank_state != blank) {
+			int ret = 1;
+
 			ops->blank_state = blank;
 			fbcon_cursor(vc, blank ? CM_ERASE : CM_DRAW);
 			ops->cursor_flash = (!blank);
 
-			if (fb_blank(info, blank))
+			if (info->fbops->fb_blank)
+				ret = info->fbops->fb_blank(blank, info);
+			if (ret)
 				fbcon_generic_blank(vc, info, blank);
 		}
 
diff --git a/drivers/video/console/fbcon.h b/drivers/video/console/fbcon.h
index a6e38e9..89a34688 100644
--- a/drivers/video/console/fbcon.h
+++ b/drivers/video/console/fbcon.h
@@ -110,7 +110,7 @@ static inline int mono_col(const struct fb_info *info)
 	__u32 max_len;
 	max_len = max(info->var.green.length, info->var.red.length);
 	max_len = max(info->var.blue.length, max_len);
-	return ~(0xfff << (max_len & 0xff));
+	return (~(0xfff << max_len)) & 0xff;
 }
 
 static inline int attr_col_ec(int shift, struct vc_data *vc,
diff --git a/fs/inotify_user.c b/fs/inotify_user.c
index 6024942..d85c7d9 100644
--- a/fs/inotify_user.c
+++ b/fs/inotify_user.c
@@ -323,7 +323,7 @@ out:
 }
 
 /*
- * remove_kevent - cleans up and ultimately frees the given kevent
+ * remove_kevent - cleans up the given kevent
  *
  * Caller must hold dev->ev_mutex.
  */
@@ -334,7 +334,13 @@ static void remove_kevent(struct inotify_device *dev,
 
 	dev->event_count--;
 	dev->queue_size -= sizeof(struct inotify_event) + kevent->event.len;
+}
 
+/*
+ * free_kevent - frees the given kevent.
+ */
+static void free_kevent(struct inotify_kernel_event *kevent)
+{
 	kfree(kevent->name);
 	kmem_cache_free(event_cachep, kevent);
 }
@@ -350,6 +356,7 @@ static void inotify_dev_event_dequeue(struct inotify_device *dev)
 		struct inotify_kernel_event *kevent;
 		kevent = inotify_dev_get_event(dev);
 		remove_kevent(dev, kevent);
+		free_kevent(kevent);
 	}
 }
 
@@ -433,17 +440,15 @@ static ssize_t inotify_read(struct file *file, char __user *buf,
 	dev = file->private_data;
 
 	while (1) {
-		int events;
 
 		prepare_to_wait(&dev->wq, &wait, TASK_INTERRUPTIBLE);
 
 		mutex_lock(&dev->ev_mutex);
-		events = !list_empty(&dev->events);
-		mutex_unlock(&dev->ev_mutex);
-		if (events) {
+		if (!list_empty(&dev->events)) {
 			ret = 0;
 			break;
 		}
+		mutex_unlock(&dev->ev_mutex);
 
 		if (file->f_flags & O_NONBLOCK) {
 			ret = -EAGAIN;
@@ -462,7 +467,6 @@ static ssize_t inotify_read(struct file *file, char __user *buf,
 	if (ret)
 		return ret;
 
-	mutex_lock(&dev->ev_mutex);
 	while (1) {
 		struct inotify_kernel_event *kevent;
 
@@ -481,6 +485,13 @@ static ssize_t inotify_read(struct file *file, char __user *buf,
 			}
 			break;
 		}
+		remove_kevent(dev, kevent);
+
+		/*
+		 * Must perform the copy_to_user outside the mutex in order
+		 * to avoid a lock order reversal with mmap_sem.
+		 */
+		mutex_unlock(&dev->ev_mutex);
 
 		if (copy_to_user(buf, &kevent->event, event_size)) {
 			ret = -EFAULT;
@@ -498,7 +509,9 @@ static ssize_t inotify_read(struct file *file, char __user *buf,
 			count -= kevent->event.len;
 		}
 
-		remove_kevent(dev, kevent);
+		free_kevent(kevent);
+
+		mutex_lock(&dev->ev_mutex);
 	}
 	mutex_unlock(&dev->ev_mutex);
 
diff --git a/fs/ramfs/file-nommu.c b/fs/ramfs/file-nommu.c
index 52312ec..5145cb9 100644
--- a/fs/ramfs/file-nommu.c
+++ b/fs/ramfs/file-nommu.c
@@ -58,7 +58,7 @@ const struct inode_operations ramfs_file_inode_operations = {
  * size 0 on the assumption that it's going to be used for an mmap of shared
  * memory
  */
-static int ramfs_nommu_expand_for_mapping(struct inode *inode, size_t newsize)
+int ramfs_nommu_expand_for_mapping(struct inode *inode, size_t newsize)
 {
 	struct pagevec lru_pvec;
 	unsigned long npages, xpages, loop, limit;
diff --git a/include/asm-mips/cevt-r4k.h b/include/asm-mips/cevt-r4k.h
new file mode 100644
index 0000000..fa4328f
--- /dev/null
+++ b/include/asm-mips/cevt-r4k.h
@@ -0,0 +1,46 @@
+/*
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License.  See the file "COPYING" in the main directory of this archive
+ * for more details.
+ *
+ * Copyright (C) 2008 Kevin D. Kissell
+ */
+
+/*
+ * Definitions used for common event timer implementation
+ * for MIPS 4K-type processors and their MIPS MT variants.
+ * Avoids unsightly extern declarations in C files.
+ */
+#ifndef __ASM_CEVT_R4K_H
+#define __ASM_CEVT_R4K_H
+
+DECLARE_PER_CPU(struct clock_event_device, mips_clockevent_device);
+
+void mips_event_handler(struct clock_event_device *dev);
+int c0_compare_int_usable(void);
+void mips_set_clock_mode(enum clock_event_mode, struct clock_event_device *);
+irqreturn_t c0_compare_interrupt(int, void *);
+
+extern struct irqaction c0_compare_irqaction;
+extern int cp0_timer_irq_installed;
+
+/*
+ * Possibly handle a performance counter interrupt.
+ * Return true if the timer interrupt should not be checked
+ */
+
+static inline int handle_perf_irq(int r2)
+{
+	/*
+	 * The performance counter overflow interrupt may be shared with the
+	 * timer interrupt (cp0_perfcount_irq < 0). If it is and a
+	 * performance counter has overflowed (perf_irq() == IRQ_HANDLED)
+	 * and we can't reliably determine if a counter interrupt has also
+	 * happened (!r2) then don't check for a timer interrupt.
+	 */
+	return (cp0_perfcount_irq < 0) &&
+		perf_irq() == IRQ_HANDLED &&
+		!r2;
+}
+
+#endif /* __ASM_CEVT_R4K_H */
diff --git a/include/asm-mips/irqflags.h b/include/asm-mips/irqflags.h
index 881e886..701ec0b 100644
--- a/include/asm-mips/irqflags.h
+++ b/include/asm-mips/irqflags.h
@@ -38,8 +38,17 @@ __asm__(
 	"	.set	pop						\n"
 	"	.endm");
 
+extern void smtc_ipi_replay(void);
+
 static inline void raw_local_irq_enable(void)
 {
+#ifdef CONFIG_MIPS_MT_SMTC
+	/*
+	 * SMTC kernel needs to do a software replay of queued
+	 * IPIs, at the cost of call overhead on each local_irq_enable()
+	 */
+	smtc_ipi_replay();
+#endif
 	__asm__ __volatile__(
 		"raw_local_irq_enable"
 		: /* no outputs */
@@ -47,6 +56,7 @@ static inline void raw_local_irq_enable(void)
 		: "memory");
 }
 
+
 /*
  * For cli() we have to insert nops to make sure that the new value
  * has actually arrived in the status register before the end of this
@@ -185,15 +195,14 @@ __asm__(
 	"	.set	pop						\n"
 	"	.endm							\n");
 
-extern void smtc_ipi_replay(void);
 
 static inline void raw_local_irq_restore(unsigned long flags)
 {
 	unsigned long __tmp1;
 
-#ifdef CONFIG_MIPS_MT_SMTC_INSTANT_REPLAY
+#ifdef CONFIG_MIPS_MT_SMTC
 	/*
-	 * CONFIG_MIPS_MT_SMTC_INSTANT_REPLAY does prompt replay of deferred
+	 * SMTC kernel needs to do a software replay of queued
 	 * IPIs, at the cost of branch and call overhead on each
 	 * local_irq_restore()
 	 */
@@ -208,6 +217,17 @@ static inline void raw_local_irq_restore(unsigned long flags)
 		: "memory");
 }
 
+static inline void __raw_local_irq_restore(unsigned long flags)
+{
+	unsigned long __tmp1;
+
+	__asm__ __volatile__(
+		"raw_local_irq_restore\t%0"
+		: "=r" (__tmp1)
+		: "0" (flags)
+		: "memory");
+}
+
 static inline int raw_irqs_disabled_flags(unsigned long flags)
 {
 #ifdef CONFIG_MIPS_MT_SMTC
diff --git a/include/asm-mips/mipsregs.h b/include/asm-mips/mipsregs.h
index a46f8e2..9798660 100644
--- a/include/asm-mips/mipsregs.h
+++ b/include/asm-mips/mipsregs.h
@@ -1462,7 +1462,7 @@ set_c0_##name(unsigned int set)					\
 {								\
 	unsigned int res;					\
 	unsigned int omt;					\
-	unsigned int flags;					\
+	unsigned long flags;					\
 								\
 	local_irq_save(flags);					\
 	omt = __dmt();						\
@@ -1480,7 +1480,7 @@ clear_c0_##name(unsigned int clear)				\
 {								\
 	unsigned int res;					\
 	unsigned int omt;					\
-	unsigned int flags;					\
+	unsigned long flags;					\
 								\
 	local_irq_save(flags);					\
 	omt = __dmt();						\
@@ -1498,7 +1498,7 @@ change_c0_##name(unsigned int change, unsigned int new)		\
 {								\
 	unsigned int res;					\
 	unsigned int omt;					\
-	unsigned int flags;					\
+	unsigned long flags;					\
 								\
 	local_irq_save(flags);					\
 								\
diff --git a/include/asm-mips/smtc.h b/include/asm-mips/smtc.h
index 3639b28..ea60bf0 100644
--- a/include/asm-mips/smtc.h
+++ b/include/asm-mips/smtc.h
@@ -6,6 +6,7 @@
  */
 
 #include <asm/mips_mt.h>
+#include <asm/smtc_ipi.h>
 
 /*
  * System-wide SMTC status information
@@ -38,14 +39,15 @@ struct mm_struct;
 struct task_struct;
 
 void smtc_get_new_mmu_context(struct mm_struct *mm, unsigned long cpu);
-
+void self_ipi(struct smtc_ipi *);
 void smtc_flush_tlb_asid(unsigned long asid);
-extern int mipsmt_build_cpu_map(int startslot);
-extern void mipsmt_prepare_cpus(void);
+extern int smtc_build_cpu_map(int startslot);
+extern void smtc_prepare_cpus(int cpus);
 extern void smtc_smp_finish(void);
 extern void smtc_boot_secondary(int cpu, struct task_struct *t);
 extern void smtc_cpus_done(void);
 
+
 /*
  * Sharing the TLB between multiple VPEs means that the
  * "random" index selection function is not allowed to
diff --git a/include/asm-mips/sn/mapped_kernel.h b/include/asm-mips/sn/mapped_kernel.h
index c3dd5d0..721496a 100644
--- a/include/asm-mips/sn/mapped_kernel.h
+++ b/include/asm-mips/sn/mapped_kernel.h
@@ -5,6 +5,8 @@
 #ifndef __ASM_SN_MAPPED_KERNEL_H
 #define __ASM_SN_MAPPED_KERNEL_H
 
+#include <linux/mmzone.h>
+
 /*
  * Note on how mapped kernels work: the text and data section is
  * compiled at cksseg segment (LOADADDR = 0xc001c000), and the
@@ -29,10 +31,8 @@
 #define MAPPED_ADDR_RO_TO_PHYS(x)	(x - REP_BASE)
 #define MAPPED_ADDR_RW_TO_PHYS(x)	(x - REP_BASE - 16777216)
 
-#define MAPPED_KERN_RO_PHYSBASE(n) \
-			(PLAT_NODE_DATA(n)->kern_vars.kv_ro_baseaddr)
-#define MAPPED_KERN_RW_PHYSBASE(n) \
-			(PLAT_NODE_DATA(n)->kern_vars.kv_rw_baseaddr)
+#define MAPPED_KERN_RO_PHYSBASE(n) (hub_data(n)->kern_vars.kv_ro_baseaddr)
+#define MAPPED_KERN_RW_PHYSBASE(n) (hub_data(n)->kern_vars.kv_rw_baseaddr)
 
 #define MAPPED_KERN_RO_TO_PHYS(x) \
 				((unsigned long)MAPPED_ADDR_RO_TO_PHYS(x) | \
diff --git a/include/asm-mips/stackframe.h b/include/asm-mips/stackframe.h
index 051e1af..4c37c4e5 100644
--- a/include/asm-mips/stackframe.h
+++ b/include/asm-mips/stackframe.h
@@ -297,14 +297,31 @@
 #ifdef CONFIG_MIPS_MT_SMTC
 		.set	mips32r2
 		/*
-		 * This may not really be necessary if ints are already
-		 * inhibited here.
+		 * We need to make sure the read-modify-write
+		 * of Status below isn't perturbed by an interrupt
+		 * or cross-TC access, so we need to do at least a DMT,
+		 * protected by an interrupt-inhibit. But setting IXMT
+		 * also creates a few-cycle window where an IPI could
+		 * be queued and not be detected before potentially
+		 * returning to a WAIT or user-mode loop. It must be
+		 * replayed.
+		 *
+		 * We're in the middle of a context switch, and
+		 * we can't dispatch it directly without trashing
+		 * some registers, so we'll try to detect this unlikely
+		 * case and program a software interrupt in the VPE,
+		 * as would be done for a cross-VPE IPI.  To accomodate
+		 * the handling of that case, we're doing a DVPE instead
+		 * of just a DMT here to protect against other threads.
+		 * This is a lot of cruft to cover a tiny window.
+		 * If you can find a better design, implement it!
+		 *
 		 */
 		mfc0	v0, CP0_TCSTATUS
 		ori	v0, TCSTATUS_IXMT
 		mtc0	v0, CP0_TCSTATUS
 		_ehb
-		DMT	5				# dmt a1
+		DVPE	5				# dvpe a1
 		jal	mips_ihb
 #endif /* CONFIG_MIPS_MT_SMTC */
 		mfc0	a0, CP0_STATUS
@@ -325,17 +342,50 @@
  */
 		LONG_L	v1, PT_TCSTATUS(sp)
 		_ehb
-		mfc0	v0, CP0_TCSTATUS
+		mfc0	a0, CP0_TCSTATUS
 		andi	v1, TCSTATUS_IXMT
-		/* We know that TCStatua.IXMT should be set from above */
-		xori	v0, v0, TCSTATUS_IXMT
-		or	v0, v0, v1
-		mtc0	v0, CP0_TCSTATUS
-		_ehb
-		andi	a1, a1, VPECONTROL_TE
+		bnez	v1, 0f
+
+/*
+ * We'd like to detect any IPIs queued in the tiny window
+ * above and request an software interrupt to service them
+ * when we ERET.
+ *
+ * Computing the offset into the IPIQ array of the executing
+ * TC's IPI queue in-line would be tedious.  We use part of
+ * the TCContext register to hold 16 bits of offset that we
+ * can add in-line to find the queue head.
+ */
+		mfc0	v0, CP0_TCCONTEXT
+		la	a2, IPIQ
+		srl	v0, v0, 16
+		addu	a2, a2, v0
+		LONG_L	v0, 0(a2)
+		beqz	v0, 0f
+/*
+ * If we have a queue, provoke dispatch within the VPE by setting C_SW1
+ */
+		mfc0	v0, CP0_CAUSE
+		ori	v0, v0, C_SW1
+		mtc0	v0, CP0_CAUSE
+0:
+		/*
+		 * This test should really never branch but
+		 * let's be prudent here.  Having atomized
+		 * the shared register modifications, we can
+		 * now EVPE, and must do so before interrupts
+		 * are potentially re-enabled.
+		 */
+		andi	a1, a1, MVPCONTROL_EVP
 		beqz	a1, 1f
-		emt
+		evpe
 1:
+		/* We know that TCStatua.IXMT should be set from above */
+		xori	a0, a0, TCSTATUS_IXMT
+		or	a0, a0, v1
+		mtc0	a0, CP0_TCSTATUS
+		_ehb
+
 		.set	mips0
 #endif /* CONFIG_MIPS_MT_SMTC */
 		LONG_L	v1, PT_EPC(sp)
diff --git a/include/asm-x86/uaccess_64.h b/include/asm-x86/uaccess_64.h
index 515d4dc..45806d6 100644
--- a/include/asm-x86/uaccess_64.h
+++ b/include/asm-x86/uaccess_64.h
@@ -7,6 +7,7 @@
 #include <linux/compiler.h>
 #include <linux/errno.h>
 #include <linux/prefetch.h>
+#include <linux/lockdep.h>
 #include <asm/page.h>
 
 /*
diff --git a/include/linux/hrtimer.h b/include/linux/hrtimer.h
index 6d93dce..2f245fe 100644
--- a/include/linux/hrtimer.h
+++ b/include/linux/hrtimer.h
@@ -47,14 +47,22 @@ enum hrtimer_restart {
  *	HRTIMER_CB_IRQSAFE:		Callback may run in hardirq context
  *	HRTIMER_CB_IRQSAFE_NO_RESTART:	Callback may run in hardirq context and
  *					does not restart the timer
- *	HRTIMER_CB_IRQSAFE_NO_SOFTIRQ:	Callback must run in hardirq context
- *					Special mode for tick emultation
+ *	HRTIMER_CB_IRQSAFE_PERCPU:	Callback must run in hardirq context
+ *					Special mode for tick emulation and
+ *					scheduler timer. Such timers are per
+ *					cpu and not allowed to be migrated on
+ *					cpu unplug.
+ *	HRTIMER_CB_IRQSAFE_UNLOCKED:	Callback should run in hardirq context
+ *					with timer->base lock unlocked
+ *					used for timers which call wakeup to
+ *					avoid lock order problems with rq->lock
  */
 enum hrtimer_cb_mode {
 	HRTIMER_CB_SOFTIRQ,
 	HRTIMER_CB_IRQSAFE,
 	HRTIMER_CB_IRQSAFE_NO_RESTART,
-	HRTIMER_CB_IRQSAFE_NO_SOFTIRQ,
+	HRTIMER_CB_IRQSAFE_PERCPU,
+	HRTIMER_CB_IRQSAFE_UNLOCKED,
 };
 
 /*
@@ -67,9 +75,10 @@ enum hrtimer_cb_mode {
  * 0x02		callback function running
  * 0x04		callback pending (high resolution mode)
  *
- * Special case:
+ * Special cases:
  * 0x03		callback function running and enqueued
  *		(was requeued on another CPU)
+ * 0x09		timer was migrated on CPU hotunplug
  * The "callback function running and enqueued" status is only possible on
  * SMP. It happens for example when a posix timer expired and the callback
  * queued a signal. Between dropping the lock which protects the posix timer
@@ -87,6 +96,7 @@ enum hrtimer_cb_mode {
 #define HRTIMER_STATE_ENQUEUED	0x01
 #define HRTIMER_STATE_CALLBACK	0x02
 #define HRTIMER_STATE_PENDING	0x04
+#define HRTIMER_STATE_MIGRATE	0x08
 
 /**
  * struct hrtimer - the basic hrtimer structure
diff --git a/include/linux/ide.h b/include/linux/ide.h
index 1524829..6514db8 100644
--- a/include/linux/ide.h
+++ b/include/linux/ide.h
@@ -366,7 +366,9 @@ enum {
 	/* Currently on a filemark */
 	IDE_AFLAG_FILEMARK		= (1 << 25),
 	/* 0 = no tape is loaded, so we don't rewind after ejecting */
-	IDE_AFLAG_MEDIUM_PRESENT	= (1 << 26)
+	IDE_AFLAG_MEDIUM_PRESENT	= (1 << 26),
+
+	IDE_AFLAG_NO_AUTOCLOSE		= (1 << 27),
 };
 
 struct ide_drive_s {
diff --git a/include/linux/ramfs.h b/include/linux/ramfs.h
index b160fb18..37aaf2b 100644
--- a/include/linux/ramfs.h
+++ b/include/linux/ramfs.h
@@ -6,6 +6,7 @@ extern int ramfs_get_sb(struct file_system_type *fs_type,
 	 int flags, const char *dev_name, void *data, struct vfsmount *mnt);
 
 #ifndef CONFIG_MMU
+extern int ramfs_nommu_expand_for_mapping(struct inode *inode, size_t newsize);
 extern unsigned long ramfs_nommu_get_unmapped_area(struct file *file,
 						   unsigned long addr,
 						   unsigned long len,
diff --git a/include/linux/stacktrace.h b/include/linux/stacktrace.h
index 5da9794..b106fd8 100644
--- a/include/linux/stacktrace.h
+++ b/include/linux/stacktrace.h
@@ -1,6 +1,8 @@
 #ifndef __LINUX_STACKTRACE_H
 #define __LINUX_STACKTRACE_H
 
+struct task_struct;
+
 #ifdef CONFIG_STACKTRACE
 struct stack_trace {
 	unsigned int nr_entries, max_entries;
diff --git a/include/net/sctp/sm.h b/include/net/sctp/sm.h
index 2481173..029a54a 100644
--- a/include/net/sctp/sm.h
+++ b/include/net/sctp/sm.h
@@ -227,6 +227,9 @@ struct sctp_chunk *sctp_make_abort_violation(const struct sctp_association *,
 				   const struct sctp_chunk *,
 				   const __u8 *,
 				   const size_t );
+struct sctp_chunk *sctp_make_violation_paramlen(const struct sctp_association *,
+				   const struct sctp_chunk *,
+				   struct sctp_paramhdr *);
 struct sctp_chunk *sctp_make_heartbeat(const struct sctp_association *,
 				  const struct sctp_transport *,
 				  const void *payload,
diff --git a/init/main.c b/init/main.c
index f6f7042..3820323 100644
--- a/init/main.c
+++ b/init/main.c
@@ -708,7 +708,7 @@ int do_one_initcall(initcall_t fn)
 	int result;
 
 	if (initcall_debug) {
-		print_fn_descriptor_symbol("calling  %s\n", fn);
+		printk("calling  %pF\n", fn);
 		t0 = ktime_get();
 	}
 
@@ -718,8 +718,8 @@ int do_one_initcall(initcall_t fn)
 		t1 = ktime_get();
 		delta = ktime_sub(t1, t0);
 
-		print_fn_descriptor_symbol("initcall %s", fn);
-		printk(" returned %d after %Ld msecs\n", result,
+		printk("initcall %pF returned %d after %Ld msecs\n",
+			fn, result,
 			(unsigned long long) delta.tv64 >> 20);
 	}
 
@@ -737,8 +737,7 @@ int do_one_initcall(initcall_t fn)
 		local_irq_enable();
 	}
 	if (msgbuf[0]) {
-		print_fn_descriptor_symbol(KERN_WARNING "initcall %s", fn);
-		printk(" returned with %s\n", msgbuf);
+		printk("initcall %pF returned with %s\n", fn, msgbuf);
 	}
 
 	return result;
diff --git a/kernel/hrtimer.c b/kernel/hrtimer.c
index b8e4dce..cdec83e 100644
--- a/kernel/hrtimer.c
+++ b/kernel/hrtimer.c
@@ -672,13 +672,14 @@ static inline int hrtimer_enqueue_reprogram(struct hrtimer *timer,
 			 */
 			BUG_ON(timer->function(timer) != HRTIMER_NORESTART);
 			return 1;
-		case HRTIMER_CB_IRQSAFE_NO_SOFTIRQ:
+		case HRTIMER_CB_IRQSAFE_PERCPU:
+		case HRTIMER_CB_IRQSAFE_UNLOCKED:
 			/*
 			 * This is solely for the sched tick emulation with
 			 * dynamic tick support to ensure that we do not
 			 * restart the tick right on the edge and end up with
 			 * the tick timer in the softirq ! The calling site
-			 * takes care of this.
+			 * takes care of this. Also used for hrtimer sleeper !
 			 */
 			debug_hrtimer_deactivate(timer);
 			return 1;
@@ -1245,7 +1246,8 @@ static void __run_hrtimer(struct hrtimer *timer)
 	timer_stats_account_hrtimer(timer);
 
 	fn = timer->function;
-	if (timer->cb_mode == HRTIMER_CB_IRQSAFE_NO_SOFTIRQ) {
+	if (timer->cb_mode == HRTIMER_CB_IRQSAFE_PERCPU ||
+	    timer->cb_mode == HRTIMER_CB_IRQSAFE_UNLOCKED) {
 		/*
 		 * Used for scheduler timers, avoid lock inversion with
 		 * rq->lock and tasklist_lock.
@@ -1452,7 +1454,7 @@ void hrtimer_init_sleeper(struct hrtimer_sleeper *sl, struct task_struct *task)
 	sl->timer.function = hrtimer_wakeup;
 	sl->task = task;
 #ifdef CONFIG_HIGH_RES_TIMERS
-	sl->timer.cb_mode = HRTIMER_CB_IRQSAFE_NO_SOFTIRQ;
+	sl->timer.cb_mode = HRTIMER_CB_IRQSAFE_UNLOCKED;
 #endif
 }
 
@@ -1591,29 +1593,95 @@ static void __cpuinit init_hrtimers_cpu(int cpu)
 
 #ifdef CONFIG_HOTPLUG_CPU
 
-static void migrate_hrtimer_list(struct hrtimer_clock_base *old_base,
-				struct hrtimer_clock_base *new_base)
+static int migrate_hrtimer_list(struct hrtimer_clock_base *old_base,
+				struct hrtimer_clock_base *new_base, int dcpu)
 {
 	struct hrtimer *timer;
 	struct rb_node *node;
+	int raise = 0;
 
 	while ((node = rb_first(&old_base->active))) {
 		timer = rb_entry(node, struct hrtimer, node);
 		BUG_ON(hrtimer_callback_running(timer));
 		debug_hrtimer_deactivate(timer);
-		__remove_hrtimer(timer, old_base, HRTIMER_STATE_INACTIVE, 0);
+
+		/*
+		 * Should not happen. Per CPU timers should be
+		 * canceled _before_ the migration code is called
+		 */
+		if (timer->cb_mode == HRTIMER_CB_IRQSAFE_PERCPU) {
+			__remove_hrtimer(timer, old_base,
+					 HRTIMER_STATE_INACTIVE, 0);
+			WARN(1, "hrtimer (%p %p)active but cpu %d dead\n",
+			     timer, timer->function, dcpu);
+			continue;
+		}
+
+		/*
+		 * Mark it as STATE_MIGRATE not INACTIVE otherwise the
+		 * timer could be seen as !active and just vanish away
+		 * under us on another CPU
+		 */
+		__remove_hrtimer(timer, old_base, HRTIMER_STATE_MIGRATE, 0);
 		timer->base = new_base;
 		/*
 		 * Enqueue the timer. Allow reprogramming of the event device
 		 */
 		enqueue_hrtimer(timer, new_base, 1);
+
+#ifdef CONFIG_HIGH_RES_TIMERS
+		/*
+		 * Happens with high res enabled when the timer was
+		 * already expired and the callback mode is
+		 * HRTIMER_CB_IRQSAFE_UNLOCKED (hrtimer_sleeper). The
+		 * enqueue code does not move them to the soft irq
+		 * pending list for performance/latency reasons, but
+		 * in the migration state, we need to do that
+		 * otherwise we end up with a stale timer.
+		 */
+		if (timer->state == HRTIMER_STATE_MIGRATE) {
+			timer->state = HRTIMER_STATE_PENDING;
+			list_add_tail(&timer->cb_entry,
+				      &new_base->cpu_base->cb_pending);
+			raise = 1;
+		}
+#endif
+		/* Clear the migration state bit */
+		timer->state &= ~HRTIMER_STATE_MIGRATE;
+	}
+	return raise;
+}
+
+#ifdef CONFIG_HIGH_RES_TIMERS
+static int migrate_hrtimer_pending(struct hrtimer_cpu_base *old_base,
+				   struct hrtimer_cpu_base *new_base)
+{
+	struct hrtimer *timer;
+	int raise = 0;
+
+	while (!list_empty(&old_base->cb_pending)) {
+		timer = list_entry(old_base->cb_pending.next,
+				   struct hrtimer, cb_entry);
+
+		__remove_hrtimer(timer, timer->base, HRTIMER_STATE_PENDING, 0);
+		timer->base = &new_base->clock_base[timer->base->index];
+		list_add_tail(&timer->cb_entry, &new_base->cb_pending);
+		raise = 1;
 	}
+	return raise;
+}
+#else
+static int migrate_hrtimer_pending(struct hrtimer_cpu_base *old_base,
+				   struct hrtimer_cpu_base *new_base)
+{
+	return 0;
 }
+#endif
 
 static void migrate_hrtimers(int cpu)
 {
 	struct hrtimer_cpu_base *old_base, *new_base;
-	int i;
+	int i, raise = 0;
 
 	BUG_ON(cpu_online(cpu));
 	old_base = &per_cpu(hrtimer_bases, cpu);
@@ -1626,14 +1694,21 @@ static void migrate_hrtimers(int cpu)
 	spin_lock_nested(&old_base->lock, SINGLE_DEPTH_NESTING);
 
 	for (i = 0; i < HRTIMER_MAX_CLOCK_BASES; i++) {
-		migrate_hrtimer_list(&old_base->clock_base[i],
-				     &new_base->clock_base[i]);
+		if (migrate_hrtimer_list(&old_base->clock_base[i],
+					 &new_base->clock_base[i], cpu))
+			raise = 1;
 	}
 
+	if (migrate_hrtimer_pending(old_base, new_base))
+		raise = 1;
+
 	spin_unlock(&old_base->lock);
 	spin_unlock(&new_base->lock);
 	local_irq_enable();
 	put_cpu_var(hrtimer_bases);
+
+	if (raise)
+		hrtimer_raise_softirq();
 }
 #endif /* CONFIG_HOTPLUG_CPU */
 
diff --git a/kernel/kgdb.c b/kernel/kgdb.c
index 25d955d..e4dcfb2 100644
--- a/kernel/kgdb.c
+++ b/kernel/kgdb.c
@@ -590,6 +590,7 @@ static void kgdb_wait(struct pt_regs *regs)
 
 	/* Signal the primary CPU that we are done: */
 	atomic_set(&cpu_in_kgdb[cpu], 0);
+	touch_softlockup_watchdog();
 	clocksource_touch_watchdog();
 	local_irq_restore(flags);
 }
@@ -1432,6 +1433,7 @@ acquirelock:
 	    atomic_read(&kgdb_cpu_doing_single_step) != cpu) {
 
 		atomic_set(&kgdb_active, -1);
+		touch_softlockup_watchdog();
 		clocksource_touch_watchdog();
 		local_irq_restore(flags);
 
@@ -1524,6 +1526,7 @@ acquirelock:
 kgdb_restore:
 	/* Free kgdb_active */
 	atomic_set(&kgdb_active, -1);
+	touch_softlockup_watchdog();
 	clocksource_touch_watchdog();
 	local_irq_restore(flags);
 
diff --git a/kernel/posix-timers.c b/kernel/posix-timers.c
index e36d579..5131e54 100644
--- a/kernel/posix-timers.c
+++ b/kernel/posix-timers.c
@@ -441,7 +441,7 @@ static struct k_itimer * alloc_posix_timer(void)
 		return tmr;
 	if (unlikely(!(tmr->sigq = sigqueue_alloc()))) {
 		kmem_cache_free(posix_timers_cache, tmr);
-		tmr = NULL;
+		return NULL;
 	}
 	memset(&tmr->sigq->info, 0, sizeof(siginfo_t));
 	return tmr;
diff --git a/kernel/sched.c b/kernel/sched.c
index 13dd2db..ad1962d 100644
--- a/kernel/sched.c
+++ b/kernel/sched.c
@@ -201,7 +201,7 @@ void init_rt_bandwidth(struct rt_bandwidth *rt_b, u64 period, u64 runtime)
 	hrtimer_init(&rt_b->rt_period_timer,
 			CLOCK_MONOTONIC, HRTIMER_MODE_REL);
 	rt_b->rt_period_timer.function = sched_rt_period_timer;
-	rt_b->rt_period_timer.cb_mode = HRTIMER_CB_IRQSAFE_NO_SOFTIRQ;
+	rt_b->rt_period_timer.cb_mode = HRTIMER_CB_IRQSAFE_UNLOCKED;
 }
 
 static void start_rt_bandwidth(struct rt_bandwidth *rt_b)
@@ -1119,7 +1119,7 @@ static void init_rq_hrtick(struct rq *rq)
 
 	hrtimer_init(&rq->hrtick_timer, CLOCK_MONOTONIC, HRTIMER_MODE_REL);
 	rq->hrtick_timer.function = hrtick;
-	rq->hrtick_timer.cb_mode = HRTIMER_CB_IRQSAFE_NO_SOFTIRQ;
+	rq->hrtick_timer.cb_mode = HRTIMER_CB_IRQSAFE_PERCPU;
 }
 #else
 static inline void hrtick_clear(struct rq *rq)
diff --git a/kernel/time/tick-broadcast.c b/kernel/time/tick-broadcast.c
index bd70345..cb01cd8 100644
--- a/kernel/time/tick-broadcast.c
+++ b/kernel/time/tick-broadcast.c
@@ -235,7 +235,8 @@ static void tick_do_broadcast_on_off(void *why)
 	case CLOCK_EVT_NOTIFY_BROADCAST_FORCE:
 		if (!cpu_isset(cpu, tick_broadcast_mask)) {
 			cpu_set(cpu, tick_broadcast_mask);
-			if (bc->mode == TICKDEV_MODE_PERIODIC)
+			if (tick_broadcast_device.mode ==
+			    TICKDEV_MODE_PERIODIC)
 				clockevents_shutdown(dev);
 		}
 		if (*reason == CLOCK_EVT_NOTIFY_BROADCAST_FORCE)
@@ -245,7 +246,8 @@ static void tick_do_broadcast_on_off(void *why)
 		if (!tick_broadcast_force &&
 		    cpu_isset(cpu, tick_broadcast_mask)) {
 			cpu_clear(cpu, tick_broadcast_mask);
-			if (bc->mode == TICKDEV_MODE_PERIODIC)
+			if (tick_broadcast_device.mode ==
+			    TICKDEV_MODE_PERIODIC)
 				tick_setup_periodic(dev, 0);
 		}
 		break;
diff --git a/kernel/time/tick-sched.c b/kernel/time/tick-sched.c
index 39019b3f..cb02324 100644
--- a/kernel/time/tick-sched.c
+++ b/kernel/time/tick-sched.c
@@ -625,7 +625,7 @@ void tick_setup_sched_timer(void)
 	 */
 	hrtimer_init(&ts->sched_timer, CLOCK_MONOTONIC, HRTIMER_MODE_ABS);
 	ts->sched_timer.function = tick_sched_timer;
-	ts->sched_timer.cb_mode = HRTIMER_CB_IRQSAFE_NO_SOFTIRQ;
+	ts->sched_timer.cb_mode = HRTIMER_CB_IRQSAFE_PERCPU;
 
 	/* Get the next period (per cpu) */
 	ts->sched_timer.expires = tick_init_jiffy_update();
diff --git a/kernel/trace/trace_sysprof.c b/kernel/trace/trace_sysprof.c
index bb948e52..db58fb6 100644
--- a/kernel/trace/trace_sysprof.c
+++ b/kernel/trace/trace_sysprof.c
@@ -202,7 +202,7 @@ static void start_stack_timer(int cpu)
 
 	hrtimer_init(hrtimer, CLOCK_MONOTONIC, HRTIMER_MODE_REL);
 	hrtimer->function = stack_trace_timer_fn;
-	hrtimer->cb_mode = HRTIMER_CB_IRQSAFE_NO_SOFTIRQ;
+	hrtimer->cb_mode = HRTIMER_CB_IRQSAFE_PERCPU;
 
 	hrtimer_start(hrtimer, ns_to_ktime(sample_period), HRTIMER_MODE_REL);
 }
diff --git a/mm/page_alloc.c b/mm/page_alloc.c
index e293c58..27b8681 100644
--- a/mm/page_alloc.c
+++ b/mm/page_alloc.c
@@ -268,13 +268,14 @@ void prep_compound_page(struct page *page, unsigned long order)
 {
 	int i;
 	int nr_pages = 1 << order;
+	struct page *p = page + 1;
 
 	set_compound_page_dtor(page, free_compound_page);
 	set_compound_order(page, order);
 	__SetPageHead(page);
-	for (i = 1; i < nr_pages; i++) {
-		struct page *p = page + i;
-
+	for (i = 1; i < nr_pages; i++, p++) {
+		if (unlikely((i & (MAX_ORDER_NR_PAGES - 1)) == 0))
+			p = pfn_to_page(page_to_pfn(page) + i);
 		__SetPageTail(p);
 		p->first_page = page;
 	}
@@ -284,6 +285,7 @@ static void destroy_compound_page(struct page *page, unsigned long order)
 {
 	int i;
 	int nr_pages = 1 << order;
+	struct page *p = page + 1;
 
 	if (unlikely(compound_order(page) != order))
 		bad_page(page);
@@ -291,8 +293,9 @@ static void destroy_compound_page(struct page *page, unsigned long order)
 	if (unlikely(!PageHead(page)))
 			bad_page(page);
 	__ClearPageHead(page);
-	for (i = 1; i < nr_pages; i++) {
-		struct page *p = page + i;
+	for (i = 1; i < nr_pages; i++, p++) {
+		if (unlikely((i & (MAX_ORDER_NR_PAGES - 1)) == 0))
+			p = pfn_to_page(page_to_pfn(page) + i);
 
 		if (unlikely(!PageTail(p) |
 				(p->first_page != page)))
diff --git a/mm/page_isolation.c b/mm/page_isolation.c
index c69f84f..b70a7fe 100644
--- a/mm/page_isolation.c
+++ b/mm/page_isolation.c
@@ -114,8 +114,10 @@ __test_page_isolated_in_pageblock(unsigned long pfn, unsigned long end_pfn)
 
 int test_pages_isolated(unsigned long start_pfn, unsigned long end_pfn)
 {
-	unsigned long pfn;
+	unsigned long pfn, flags;
 	struct page *page;
+	struct zone *zone;
+	int ret;
 
 	pfn = start_pfn;
 	/*
@@ -131,7 +133,9 @@ int test_pages_isolated(unsigned long start_pfn, unsigned long end_pfn)
 	if (pfn < end_pfn)
 		return -EBUSY;
 	/* Check all pages are free or Marked as ISOLATED */
-	if (__test_page_isolated_in_pageblock(start_pfn, end_pfn))
-		return 0;
-	return -EBUSY;
+	zone = page_zone(pfn_to_page(pfn));
+	spin_lock_irqsave(&zone->lock, flags);
+	ret = __test_page_isolated_in_pageblock(start_pfn, end_pfn);
+	spin_unlock_irqrestore(&zone->lock, flags);
+	return ret ? 0 : -EBUSY;
 }
diff --git a/mm/slob.c b/mm/slob.c
index 4c82dd41..62b679d 100644
--- a/mm/slob.c
+++ b/mm/slob.c
@@ -515,7 +515,7 @@ size_t ksize(const void *block)
 
 	sp = (struct slob_page *)virt_to_page(block);
 	if (slob_page(sp))
-		return ((slob_t *)block - 1)->units + SLOB_UNIT;
+		return (((slob_t *)block - 1)->units - 1) * SLOB_UNIT;
 	else
 		return sp->page.private;
 }
diff --git a/mm/tiny-shmem.c b/mm/tiny-shmem.c
index d17cb6f..8d7a27a 100644
--- a/mm/tiny-shmem.c
+++ b/mm/tiny-shmem.c
@@ -80,6 +80,12 @@ struct file *shmem_file_setup(char *name, loff_t size, unsigned long flags)
 	inode->i_nlink = 0;	/* It is unlinked */
 	init_file(file, shm_mnt, dentry, FMODE_WRITE | FMODE_READ,
 			&ramfs_file_operations);
+
+#ifndef CONFIG_MMU
+	error = ramfs_nommu_expand_for_mapping(inode, size);
+	if (error)
+		goto close_file;
+#endif
 	return file;
 
 close_file:
diff --git a/net/ax25/af_ax25.c b/net/ax25/af_ax25.c
index 01c83e2..28c7157 100644
--- a/net/ax25/af_ax25.c
+++ b/net/ax25/af_ax25.c
@@ -317,6 +317,9 @@ void ax25_destroy_socket(ax25_cb *ax25)
 				/* Queue the unaccepted socket for death */
 				sock_orphan(skb->sk);
 
+				/* 9A4GL: hack to release unaccepted sockets */
+				skb->sk->sk_state = TCP_LISTEN;
+
 				ax25_start_heartbeat(sax25);
 				sax25->state = AX25_STATE_0;
 			}
diff --git a/net/ax25/ax25_std_timer.c b/net/ax25/ax25_std_timer.c
index cdc7e75..96e4b92 100644
--- a/net/ax25/ax25_std_timer.c
+++ b/net/ax25/ax25_std_timer.c
@@ -39,9 +39,11 @@ void ax25_std_heartbeat_expiry(ax25_cb *ax25)
 
 	switch (ax25->state) {
 	case AX25_STATE_0:
-		if (!sk ||
-		    sock_flag(sk, SOCK_DESTROY) ||
-		    sock_flag(sk, SOCK_DEAD)) {
+		/* Magic here: If we listen() and a new link dies before it
+		   is accepted() it isn't 'dead' so doesn't get removed. */
+		if (!sk || sock_flag(sk, SOCK_DESTROY) ||
+		    (sk->sk_state == TCP_LISTEN &&
+		     sock_flag(sk, SOCK_DEAD))) {
 			if (sk) {
 				sock_hold(sk);
 				ax25_destroy_socket(ax25);
diff --git a/net/core/dev.c b/net/core/dev.c
index e8eb2b4..0ae08d3 100644
--- a/net/core/dev.c
+++ b/net/core/dev.c
@@ -2918,6 +2918,12 @@ int netdev_set_master(struct net_device *slave, struct net_device *master)
 	return 0;
 }
 
+static void dev_change_rx_flags(struct net_device *dev, int flags)
+{
+	if (dev->flags & IFF_UP && dev->change_rx_flags)
+		dev->change_rx_flags(dev, flags);
+}
+
 static int __dev_set_promiscuity(struct net_device *dev, int inc)
 {
 	unsigned short old_flags = dev->flags;
@@ -2955,8 +2961,7 @@ static int __dev_set_promiscuity(struct net_device *dev, int inc)
 				current->uid, current->gid,
 				audit_get_sessionid(current));
 
-		if (dev->change_rx_flags)
-			dev->change_rx_flags(dev, IFF_PROMISC);
+		dev_change_rx_flags(dev, IFF_PROMISC);
 	}
 	return 0;
 }
@@ -3022,8 +3027,7 @@ int dev_set_allmulti(struct net_device *dev, int inc)
 		}
 	}
 	if (dev->flags ^ old_flags) {
-		if (dev->change_rx_flags)
-			dev->change_rx_flags(dev, IFF_ALLMULTI);
+		dev_change_rx_flags(dev, IFF_ALLMULTI);
 		dev_set_rx_mode(dev);
 	}
 	return 0;
@@ -3347,8 +3351,8 @@ int dev_change_flags(struct net_device *dev, unsigned flags)
 	 *	Load in the correct multicast list now the flags have changed.
 	 */
 
-	if (dev->change_rx_flags && (old_flags ^ flags) & IFF_MULTICAST)
-		dev->change_rx_flags(dev, IFF_MULTICAST);
+	if ((old_flags ^ flags) & IFF_MULTICAST)
+		dev_change_rx_flags(dev, IFF_MULTICAST);
 
 	dev_set_rx_mode(dev);
 
@@ -3808,14 +3812,11 @@ static int dev_new_index(struct net *net)
 }
 
 /* Delayed registration/unregisteration */
-static DEFINE_SPINLOCK(net_todo_list_lock);
 static LIST_HEAD(net_todo_list);
 
 static void net_set_todo(struct net_device *dev)
 {
-	spin_lock(&net_todo_list_lock);
 	list_add_tail(&dev->todo_list, &net_todo_list);
-	spin_unlock(&net_todo_list_lock);
 }
 
 static void rollback_registered(struct net_device *dev)
@@ -4142,33 +4143,24 @@ static void netdev_wait_allrefs(struct net_device *dev)
  *	free_netdev(y1);
  *	free_netdev(y2);
  *
- * We are invoked by rtnl_unlock() after it drops the semaphore.
+ * We are invoked by rtnl_unlock().
  * This allows us to deal with problems:
  * 1) We can delete sysfs objects which invoke hotplug
  *    without deadlocking with linkwatch via keventd.
  * 2) Since we run with the RTNL semaphore not held, we can sleep
  *    safely in order to wait for the netdev refcnt to drop to zero.
+ *
+ * We must not return until all unregister events added during
+ * the interval the lock was held have been completed.
  */
-static DEFINE_MUTEX(net_todo_run_mutex);
 void netdev_run_todo(void)
 {
 	struct list_head list;
 
-	/* Need to guard against multiple cpu's getting out of order. */
-	mutex_lock(&net_todo_run_mutex);
-
-	/* Not safe to do outside the semaphore.  We must not return
-	 * until all unregister events invoked by the local processor
-	 * have been completed (either by this todo run, or one on
-	 * another cpu).
-	 */
-	if (list_empty(&net_todo_list))
-		goto out;
-
 	/* Snapshot list, allow later requests */
-	spin_lock(&net_todo_list_lock);
 	list_replace_init(&net_todo_list, &list);
-	spin_unlock(&net_todo_list_lock);
+
+	__rtnl_unlock();
 
 	while (!list_empty(&list)) {
 		struct net_device *dev
@@ -4200,9 +4192,6 @@ void netdev_run_todo(void)
 		/* Free network device */
 		kobject_put(&dev->dev.kobj);
 	}
-
-out:
-	mutex_unlock(&net_todo_run_mutex);
 }
 
 static struct net_device_stats *internal_stats(struct net_device *dev)
diff --git a/net/core/rtnetlink.c b/net/core/rtnetlink.c
index 71edb8b..d6381c2 100644
--- a/net/core/rtnetlink.c
+++ b/net/core/rtnetlink.c
@@ -73,7 +73,7 @@ void __rtnl_unlock(void)
 
 void rtnl_unlock(void)
 {
-	mutex_unlock(&rtnl_mutex);
+	/* This fellow will unlock it for us. */
 	netdev_run_todo();
 }
 
diff --git a/net/ipv4/tcp_hybla.c b/net/ipv4/tcp_hybla.c
index bfcbd14..c209e05 100644
--- a/net/ipv4/tcp_hybla.c
+++ b/net/ipv4/tcp_hybla.c
@@ -150,7 +150,11 @@ static void hybla_cong_avoid(struct sock *sk, u32 ack, u32 in_flight)
 		ca->snd_cwnd_cents -= 128;
 		tp->snd_cwnd_cnt = 0;
 	}
-
+	/* check when cwnd has not been incremented for a while */
+	if (increment == 0 && odd == 0 && tp->snd_cwnd_cnt >= tp->snd_cwnd) {
+		tp->snd_cwnd++;
+		tp->snd_cwnd_cnt = 0;
+	}
 	/* clamp down slowstart cwnd to ssthresh value. */
 	if (is_slowstart)
 		tp->snd_cwnd = min(tp->snd_cwnd, tp->snd_ssthresh);
diff --git a/net/ipv4/tcp_input.c b/net/ipv4/tcp_input.c
index 67ccce2..7abc6b8 100644
--- a/net/ipv4/tcp_input.c
+++ b/net/ipv4/tcp_input.c
@@ -4879,7 +4879,8 @@ int tcp_rcv_established(struct sock *sk, struct sk_buff *skb,
 					goto no_ack;
 			}
 
-			__tcp_ack_snd_check(sk, 0);
+			if (!copied_early || tp->rcv_nxt != tp->rcv_wup)
+				__tcp_ack_snd_check(sk, 0);
 no_ack:
 #ifdef CONFIG_NET_DMA
 			if (copied_early)
diff --git a/net/ipv4/tcp_ipv4.c b/net/ipv4/tcp_ipv4.c
index 1b4fee2..011478e 100644
--- a/net/ipv4/tcp_ipv4.c
+++ b/net/ipv4/tcp_ipv4.c
@@ -618,7 +618,7 @@ static void tcp_v4_send_ack(struct sk_buff *skb, u32 seq, u32 ack,
 			];
 	} rep;
 	struct ip_reply_arg arg;
-	struct net *net = dev_net(skb->dev);
+	struct net *net = dev_net(skb->dst->dev);
 
 	memset(&rep.th, 0, sizeof(struct tcphdr));
 	memset(&arg, 0, sizeof(arg));
diff --git a/net/ipv6/route.c b/net/ipv6/route.c
index 9af6115..63442a1 100644
--- a/net/ipv6/route.c
+++ b/net/ipv6/route.c
@@ -2688,6 +2688,8 @@ int __init ip6_route_init(void)
 	if (ret)
 		goto out_kmem_cache;
 
+	ip6_dst_blackhole_ops.kmem_cachep = ip6_dst_ops_template.kmem_cachep;
+
 	/* Registering of the loopback is done before this portion of code,
 	 * the loopback reference in rt6_info will not be taken, do it
 	 * manually for init_net */
diff --git a/net/ipv6/tcp_ipv6.c b/net/ipv6/tcp_ipv6.c
index b585c850..10e22fd 100644
--- a/net/ipv6/tcp_ipv6.c
+++ b/net/ipv6/tcp_ipv6.c
@@ -1050,7 +1050,7 @@ static void tcp_v6_send_ack(struct sk_buff *skb, u32 seq, u32 ack, u32 win, u32
 	struct tcphdr *th = tcp_hdr(skb), *t1;
 	struct sk_buff *buff;
 	struct flowi fl;
-	struct net *net = dev_net(skb->dev);
+	struct net *net = dev_net(skb->dst->dev);
 	struct sock *ctl_sk = net->ipv6.tcp_sk;
 	unsigned int tot_len = sizeof(struct tcphdr);
 	__be32 *topt;
diff --git a/net/iucv/iucv.c b/net/iucv/iucv.c
index 705959b..d7b54b5 100644
--- a/net/iucv/iucv.c
+++ b/net/iucv/iucv.c
@@ -524,7 +524,6 @@ static int iucv_enable(void)
 	get_online_cpus();
 	for_each_online_cpu(cpu)
 		smp_call_function_single(cpu, iucv_declare_cpu, NULL, 1);
-	preempt_enable();
 	if (cpus_empty(iucv_buffer_cpumask))
 		/* No cpu could declare an iucv buffer. */
 		goto out_path;
@@ -547,7 +546,9 @@ out:
  */
 static void iucv_disable(void)
 {
+	get_online_cpus();
 	on_each_cpu(iucv_retrieve_cpu, NULL, 1);
+	put_online_cpus();
 	kfree(iucv_path_table);
 }
 
diff --git a/net/key/af_key.c b/net/key/af_key.c
index d628df9..b7f5a1c 100644
--- a/net/key/af_key.c
+++ b/net/key/af_key.c
@@ -73,22 +73,18 @@ static int pfkey_can_dump(struct sock *sk)
 	return 0;
 }
 
-static int pfkey_do_dump(struct pfkey_sock *pfk)
+static void pfkey_terminate_dump(struct pfkey_sock *pfk)
 {
-	int rc;
-
-	rc = pfk->dump.dump(pfk);
-	if (rc == -ENOBUFS)
-		return 0;
-
-	pfk->dump.done(pfk);
-	pfk->dump.dump = NULL;
-	pfk->dump.done = NULL;
-	return rc;
+	if (pfk->dump.dump) {
+		pfk->dump.done(pfk);
+		pfk->dump.dump = NULL;
+		pfk->dump.done = NULL;
+	}
 }
 
 static void pfkey_sock_destruct(struct sock *sk)
 {
+	pfkey_terminate_dump(pfkey_sk(sk));
 	skb_queue_purge(&sk->sk_receive_queue);
 
 	if (!sock_flag(sk, SOCK_DEAD)) {
@@ -310,6 +306,18 @@ static int pfkey_broadcast(struct sk_buff *skb, gfp_t allocation,
 	return err;
 }
 
+static int pfkey_do_dump(struct pfkey_sock *pfk)
+{
+	int rc;
+
+	rc = pfk->dump.dump(pfk);
+	if (rc == -ENOBUFS)
+		return 0;
+
+	pfkey_terminate_dump(pfk);
+	return rc;
+}
+
 static inline void pfkey_hdr_dup(struct sadb_msg *new, struct sadb_msg *orig)
 {
 	*new = *orig;
diff --git a/net/netrom/af_netrom.c b/net/netrom/af_netrom.c
index 532e4fa..9f1ea4a 100644
--- a/net/netrom/af_netrom.c
+++ b/net/netrom/af_netrom.c
@@ -525,6 +525,7 @@ static int nr_release(struct socket *sock)
 	if (sk == NULL) return 0;
 
 	sock_hold(sk);
+	sock_orphan(sk);
 	lock_sock(sk);
 	nr = nr_sk(sk);
 
@@ -548,7 +549,6 @@ static int nr_release(struct socket *sock)
 		sk->sk_state    = TCP_CLOSE;
 		sk->sk_shutdown |= SEND_SHUTDOWN;
 		sk->sk_state_change(sk);
-		sock_orphan(sk);
 		sock_set_flag(sk, SOCK_DESTROY);
 		break;
 
diff --git a/net/sctp/sm_make_chunk.c b/net/sctp/sm_make_chunk.c
index b599cbba..d68869f 100644
--- a/net/sctp/sm_make_chunk.c
+++ b/net/sctp/sm_make_chunk.c
@@ -1012,6 +1012,29 @@ end:
 	return retval;
 }
 
+struct sctp_chunk *sctp_make_violation_paramlen(
+	const struct sctp_association *asoc,
+	const struct sctp_chunk *chunk,
+	struct sctp_paramhdr *param)
+{
+	struct sctp_chunk *retval;
+	static const char error[] = "The following parameter had invalid length:";
+	size_t payload_len = sizeof(error) + sizeof(sctp_errhdr_t) +
+				sizeof(sctp_paramhdr_t);
+
+	retval = sctp_make_abort(asoc, chunk, payload_len);
+	if (!retval)
+		goto nodata;
+
+	sctp_init_cause(retval, SCTP_ERROR_PROTO_VIOLATION,
+			sizeof(error) + sizeof(sctp_paramhdr_t));
+	sctp_addto_chunk(retval, sizeof(error), error);
+	sctp_addto_param(retval, sizeof(sctp_paramhdr_t), param);
+
+nodata:
+	return retval;
+}
+
 /* Make a HEARTBEAT chunk.  */
 struct sctp_chunk *sctp_make_heartbeat(const struct sctp_association *asoc,
 				  const struct sctp_transport *transport,
@@ -1782,11 +1805,6 @@ static int sctp_process_inv_paramlength(const struct sctp_association *asoc,
 					const struct sctp_chunk *chunk,
 					struct sctp_chunk **errp)
 {
-	static const char error[] = "The following parameter had invalid length:";
-	size_t		payload_len = WORD_ROUND(sizeof(error)) +
-						sizeof(sctp_paramhdr_t);
-
-
 	/* This is a fatal error.  Any accumulated non-fatal errors are
 	 * not reported.
 	 */
@@ -1794,14 +1812,7 @@ static int sctp_process_inv_paramlength(const struct sctp_association *asoc,
 		sctp_chunk_free(*errp);
 
 	/* Create an error chunk and fill it in with our payload. */
-	*errp = sctp_make_op_error_space(asoc, chunk, payload_len);
-
-	if (*errp) {
-		sctp_init_cause(*errp, SCTP_ERROR_PROTO_VIOLATION,
-				sizeof(error) + sizeof(sctp_paramhdr_t));
-		sctp_addto_chunk(*errp, sizeof(error), error);
-		sctp_addto_param(*errp, sizeof(sctp_paramhdr_t), param);
-	}
+	*errp = sctp_make_violation_paramlen(asoc, chunk, param);
 
 	return 0;
 }
diff --git a/net/sctp/sm_statefuns.c b/net/sctp/sm_statefuns.c
index 8848d32..7c622af 100644
--- a/net/sctp/sm_statefuns.c
+++ b/net/sctp/sm_statefuns.c
@@ -119,7 +119,7 @@ static sctp_disposition_t sctp_sf_violation_paramlen(
 				     const struct sctp_endpoint *ep,
 				     const struct sctp_association *asoc,
 				     const sctp_subtype_t type,
-				     void *arg,
+				     void *arg, void *ext,
 				     sctp_cmd_seq_t *commands);
 
 static sctp_disposition_t sctp_sf_violation_ctsn(
@@ -3425,7 +3425,7 @@ sctp_disposition_t sctp_sf_do_asconf(const struct sctp_endpoint *ep,
 	addr_param = (union sctp_addr_param *)hdr->params;
 	length = ntohs(addr_param->p.length);
 	if (length < sizeof(sctp_paramhdr_t))
-		return sctp_sf_violation_paramlen(ep, asoc, type,
+		return sctp_sf_violation_paramlen(ep, asoc, type, arg,
 			   (void *)addr_param, commands);
 
 	/* Verify the ASCONF chunk before processing it. */
@@ -3433,8 +3433,8 @@ sctp_disposition_t sctp_sf_do_asconf(const struct sctp_endpoint *ep,
 			    (sctp_paramhdr_t *)((void *)addr_param + length),
 			    (void *)chunk->chunk_end,
 			    &err_param))
-		return sctp_sf_violation_paramlen(ep, asoc, type,
-						  (void *)&err_param, commands);
+		return sctp_sf_violation_paramlen(ep, asoc, type, arg,
+						  (void *)err_param, commands);
 
 	/* ADDIP 5.2 E1) Compare the value of the serial number to the value
 	 * the endpoint stored in a new association variable
@@ -3542,8 +3542,8 @@ sctp_disposition_t sctp_sf_do_asconf_ack(const struct sctp_endpoint *ep,
 	    (sctp_paramhdr_t *)addip_hdr->params,
 	    (void *)asconf_ack->chunk_end,
 	    &err_param))
-		return sctp_sf_violation_paramlen(ep, asoc, type,
-			   (void *)&err_param, commands);
+		return sctp_sf_violation_paramlen(ep, asoc, type, arg,
+			   (void *)err_param, commands);
 
 	if (last_asconf) {
 		addip_hdr = (sctp_addiphdr_t *)last_asconf->subh.addip_hdr;
@@ -4240,12 +4240,38 @@ static sctp_disposition_t sctp_sf_violation_paramlen(
 				     const struct sctp_endpoint *ep,
 				     const struct sctp_association *asoc,
 				     const sctp_subtype_t type,
-				     void *arg,
-				     sctp_cmd_seq_t *commands) {
-	static const char err_str[] = "The following parameter had invalid length:";
+				     void *arg, void *ext,
+				     sctp_cmd_seq_t *commands)
+{
+	struct sctp_chunk *chunk =  arg;
+	struct sctp_paramhdr *param = ext;
+	struct sctp_chunk *abort = NULL;
 
-	return sctp_sf_abort_violation(ep, asoc, arg, commands, err_str,
-					sizeof(err_str));
+	if (sctp_auth_recv_cid(SCTP_CID_ABORT, asoc))
+		goto discard;
+
+	/* Make the abort chunk. */
+	abort = sctp_make_violation_paramlen(asoc, chunk, param);
+	if (!abort)
+		goto nomem;
+
+	sctp_add_cmd_sf(commands, SCTP_CMD_REPLY, SCTP_CHUNK(abort));
+	SCTP_INC_STATS(SCTP_MIB_OUTCTRLCHUNKS);
+
+	sctp_add_cmd_sf(commands, SCTP_CMD_SET_SK_ERR,
+			SCTP_ERROR(ECONNABORTED));
+	sctp_add_cmd_sf(commands, SCTP_CMD_ASSOC_FAILED,
+			SCTP_PERR(SCTP_ERROR_PROTO_VIOLATION));
+	SCTP_DEC_STATS(SCTP_MIB_CURRESTAB);
+
+discard:
+	sctp_sf_pdiscard(ep, asoc, SCTP_ST_CHUNK(0), arg, commands);
+
+	SCTP_INC_STATS(SCTP_MIB_ABORTEDS);
+
+	return SCTP_DISPOSITION_ABORT;
+nomem:
+	return SCTP_DISPOSITION_NOMEM;
 }
 
 /* Handle a protocol violation when the peer trying to advance the
diff --git a/net/xfrm/xfrm_output.c b/net/xfrm/xfrm_output.c
index ac25b4c..dc50f1e 100644
--- a/net/xfrm/xfrm_output.c
+++ b/net/xfrm/xfrm_output.c
@@ -27,10 +27,14 @@ static int xfrm_state_check_space(struct xfrm_state *x, struct sk_buff *skb)
 		- skb_headroom(skb);
 	int ntail = dst->dev->needed_tailroom - skb_tailroom(skb);
 
-	if (nhead > 0 || ntail > 0)
-		return pskb_expand_head(skb, nhead, ntail, GFP_ATOMIC);
-
-	return 0;
+	if (nhead <= 0) {
+		if (ntail <= 0)
+			return 0;
+		nhead = 0;
+	} else if (ntail < 0)
+		ntail = 0;
+
+	return pskb_expand_head(skb, nhead, ntail, GFP_ATOMIC);
 }
 
 static int xfrm_output_one(struct sk_buff *skb, int err)
diff --git a/scripts/mod/modpost.c b/scripts/mod/modpost.c
index 418cd7d..8e0de6a 100644
--- a/scripts/mod/modpost.c
+++ b/scripts/mod/modpost.c
@@ -1986,11 +1986,13 @@ static void read_markers(const char *fname)
 
 		mod = find_module(modname);
 		if (!mod) {
-			if (is_vmlinux(modname))
-				have_vmlinux = 1;
 			mod = new_module(NOFAIL(strdup(modname)));
 			mod->skip = 1;
 		}
+		if (is_vmlinux(modname)) {
+			have_vmlinux = 1;
+			mod->skip = 0;
+		}
 
 		if (!mod->skip)
 			add_marker(mod, marker, fmt);
diff --git a/security/selinux/ss/services.c b/security/selinux/ss/services.c
index d11a815..8551952 100644
--- a/security/selinux/ss/services.c
+++ b/security/selinux/ss/services.c
@@ -2737,6 +2737,7 @@ int security_netlbl_secattr_to_sid(struct netlbl_lsm_secattr *secattr,
 		if (ctx == NULL)
 			goto netlbl_secattr_to_sid_return;
 
+		context_init(&ctx_new);
 		ctx_new.user = ctx->user;
 		ctx_new.role = ctx->role;
 		ctx_new.type = ctx->type;
@@ -2745,13 +2746,9 @@ int security_netlbl_secattr_to_sid(struct netlbl_lsm_secattr *secattr,
 			if (ebitmap_netlbl_import(&ctx_new.range.level[0].cat,
 						  secattr->attr.mls.cat) != 0)
 				goto netlbl_secattr_to_sid_return;
-			ctx_new.range.level[1].cat.highbit =
-				ctx_new.range.level[0].cat.highbit;
-			ctx_new.range.level[1].cat.node =
-				ctx_new.range.level[0].cat.node;
-		} else {
-			ebitmap_init(&ctx_new.range.level[0].cat);
-			ebitmap_init(&ctx_new.range.level[1].cat);
+			memcpy(&ctx_new.range.level[1].cat,
+			       &ctx_new.range.level[0].cat,
+			       sizeof(ctx_new.range.level[0].cat));
 		}
 		if (mls_context_isvalid(&policydb, &ctx_new) != 1)
 			goto netlbl_secattr_to_sid_return_cleanup;
diff --git a/sound/pci/hda/patch_sigmatel.c b/sound/pci/hda/patch_sigmatel.c
index ad994fc..f3da621 100644
--- a/sound/pci/hda/patch_sigmatel.c
+++ b/sound/pci/hda/patch_sigmatel.c
@@ -1683,8 +1683,8 @@ static struct snd_pci_quirk stac927x_cfg_tbl[] = {
 	/* Dell 3 stack systems with verb table in BIOS */
 	SND_PCI_QUIRK(PCI_VENDOR_ID_DELL,  0x01f3, "Dell Inspiron 1420", STAC_DELL_BIOS),
 	SND_PCI_QUIRK(PCI_VENDOR_ID_DELL,  0x0227, "Dell Vostro 1400  ", STAC_DELL_BIOS),
-	SND_PCI_QUIRK(PCI_VENDOR_ID_DELL,  0x022f, "Dell     ", STAC_DELL_BIOS),
 	SND_PCI_QUIRK(PCI_VENDOR_ID_DELL,  0x022e, "Dell     ", STAC_DELL_BIOS),
+	SND_PCI_QUIRK(PCI_VENDOR_ID_DELL,  0x022f, "Dell Inspiron 1525", STAC_DELL_3ST),
 	SND_PCI_QUIRK(PCI_VENDOR_ID_DELL,  0x0242, "Dell     ", STAC_DELL_BIOS),
 	SND_PCI_QUIRK(PCI_VENDOR_ID_DELL,  0x0243, "Dell     ", STAC_DELL_BIOS),
 	SND_PCI_QUIRK(PCI_VENDOR_ID_DELL,  0x02ff, "Dell     ", STAC_DELL_BIOS),
diff --git a/sound/ppc/awacs.c b/sound/ppc/awacs.c
index 566a6d0..106c482 100644
--- a/sound/ppc/awacs.c
+++ b/sound/ppc/awacs.c
@@ -621,6 +621,13 @@ static struct snd_kcontrol_new snd_pmac_screamer_mixers_imac[] __initdata = {
 	AWACS_SWITCH("CD Capture Switch", 0, SHIFT_MUX_CD, 0),
 };
 
+static struct snd_kcontrol_new snd_pmac_screamer_mixers_g4agp[] __initdata = {
+	AWACS_VOLUME("Line out Playback Volume", 2, 6, 1),
+	AWACS_VOLUME("Master Playback Volume", 5, 6, 1),
+	AWACS_SWITCH("CD Capture Switch", 0, SHIFT_MUX_CD, 0),
+	AWACS_SWITCH("Line Capture Switch", 0, SHIFT_MUX_MIC, 0),
+};
+
 static struct snd_kcontrol_new snd_pmac_awacs_mixers_pmac7500[] __initdata = {
 	AWACS_VOLUME("Line out Playback Volume", 2, 6, 1),
 	AWACS_SWITCH("CD Capture Switch", 0, SHIFT_MUX_CD, 0),
@@ -688,7 +695,10 @@ static struct snd_kcontrol_new snd_pmac_awacs_speaker_vol[] __initdata = {
 static struct snd_kcontrol_new snd_pmac_awacs_speaker_sw __initdata =
 AWACS_SWITCH("PC Speaker Playback Switch", 1, SHIFT_SPKMUTE, 1);
 
-static struct snd_kcontrol_new snd_pmac_awacs_speaker_sw_imac __initdata =
+static struct snd_kcontrol_new snd_pmac_awacs_speaker_sw_imac1 __initdata =
+AWACS_SWITCH("PC Speaker Playback Switch", 1, SHIFT_PAROUT1, 1);
+
+static struct snd_kcontrol_new snd_pmac_awacs_speaker_sw_imac2 __initdata =
 AWACS_SWITCH("PC Speaker Playback Switch", 1, SHIFT_PAROUT1, 0);
 
 
@@ -765,11 +775,12 @@ static void snd_pmac_awacs_resume(struct snd_pmac *chip)
 
 #define IS_PM7500 (machine_is_compatible("AAPL,7500"))
 #define IS_BEIGE (machine_is_compatible("AAPL,Gossamer"))
-#define IS_IMAC (machine_is_compatible("PowerMac2,1") \
-		|| machine_is_compatible("PowerMac2,2") \
+#define IS_IMAC1 (machine_is_compatible("PowerMac2,1"))
+#define IS_IMAC2 (machine_is_compatible("PowerMac2,2") \
 		|| machine_is_compatible("PowerMac4,1"))
+#define IS_G4AGP (machine_is_compatible("PowerMac3,1"))
 
-static int imac;
+static int imac1, imac2;
 
 #ifdef PMAC_SUPPORT_AUTOMUTE
 /*
@@ -815,13 +826,18 @@ static void snd_pmac_awacs_update_automute(struct snd_pmac *chip, int do_notify)
 		{
 			int reg = chip->awacs_reg[1]
 				| (MASK_HDMUTE | MASK_SPKMUTE);
-			if (imac) {
+			if (imac1) {
+				reg &= ~MASK_SPKMUTE;
+				reg |= MASK_PAROUT1;
+			} else if (imac2) {
 				reg &= ~MASK_SPKMUTE;
 				reg &= ~MASK_PAROUT1;
 			}
 			if (snd_pmac_awacs_detect_headphone(chip))
 				reg &= ~MASK_HDMUTE;
-			else if (imac)
+			else if (imac1)
+				reg &= ~MASK_PAROUT1;
+			else if (imac2)
 				reg |= MASK_PAROUT1;
 			else
 				reg &= ~MASK_SPKMUTE;
@@ -850,9 +866,13 @@ snd_pmac_awacs_init(struct snd_pmac *chip)
 {
 	int pm7500 = IS_PM7500;
 	int beige = IS_BEIGE;
+	int g4agp = IS_G4AGP;
+	int imac;
 	int err, vol;
 
-	imac = IS_IMAC;
+	imac1 = IS_IMAC1;
+	imac2 = IS_IMAC2;
+	imac = imac1 || imac2;
 	/* looks like MASK_GAINLINE triggers something, so we set here
 	 * as start-up
 	 */
@@ -939,7 +959,7 @@ snd_pmac_awacs_init(struct snd_pmac *chip)
 				snd_pmac_awacs_mixers);
 	if (err < 0)
 		return err;
-	if (beige)
+	if (beige || g4agp)
 		;
 	else if (chip->model == PMAC_SCREAMER)
 		err = build_mixers(chip, ARRAY_SIZE(snd_pmac_screamer_mixers2),
@@ -961,13 +981,17 @@ snd_pmac_awacs_init(struct snd_pmac *chip)
 		err = build_mixers(chip,
 				   ARRAY_SIZE(snd_pmac_screamer_mixers_imac),
 				   snd_pmac_screamer_mixers_imac);
+	else if (g4agp)
+		err = build_mixers(chip,
+				   ARRAY_SIZE(snd_pmac_screamer_mixers_g4agp),
+				   snd_pmac_screamer_mixers_g4agp);
 	else
 		err = build_mixers(chip,
 				   ARRAY_SIZE(snd_pmac_awacs_mixers_pmac),
 				   snd_pmac_awacs_mixers_pmac);
 	if (err < 0)
 		return err;
-	chip->master_sw_ctl = snd_ctl_new1((pm7500 || imac)
+	chip->master_sw_ctl = snd_ctl_new1((pm7500 || imac || g4agp)
 			? &snd_pmac_awacs_master_sw_imac
 			: &snd_pmac_awacs_master_sw, chip);
 	err = snd_ctl_add(chip->card, chip->master_sw_ctl);
@@ -1004,15 +1028,17 @@ snd_pmac_awacs_init(struct snd_pmac *chip)
 					snd_pmac_awacs_speaker_vol);
 		if (err < 0)
 			return err;
-		chip->speaker_sw_ctl = snd_ctl_new1(imac
-				? &snd_pmac_awacs_speaker_sw_imac
+		chip->speaker_sw_ctl = snd_ctl_new1(imac1
+				? &snd_pmac_awacs_speaker_sw_imac1
+				: imac2
+				? &snd_pmac_awacs_speaker_sw_imac2
 				: &snd_pmac_awacs_speaker_sw, chip);
 		err = snd_ctl_add(chip->card, chip->speaker_sw_ctl);
 		if (err < 0)
 			return err;
 	}
 
-	if (beige)
+	if (beige || g4agp)
 		err = build_mixers(chip,
 				ARRAY_SIZE(snd_pmac_screamer_mic_boost_beige),
 				snd_pmac_screamer_mic_boost_beige);
diff --git a/sound/soc/codecs/cs4270.c b/sound/soc/codecs/cs4270.c
index d68650d..0bbd945 100644
--- a/sound/soc/codecs/cs4270.c
+++ b/sound/soc/codecs/cs4270.c
@@ -681,7 +681,7 @@ static int cs4270_probe(struct platform_device *pdev)
 	ret = snd_soc_new_pcms(socdev, SNDRV_DEFAULT_IDX1, SNDRV_DEFAULT_STR1);
 	if (ret < 0) {
 		printk(KERN_ERR "cs4270: failed to create PCMs\n");
-		return ret;
+		goto error_free_codec;
 	}
 
 #ifdef USE_I2C
@@ -690,8 +690,7 @@ static int cs4270_probe(struct platform_device *pdev)
 	ret = i2c_add_driver(&cs4270_i2c_driver);
 	if (ret) {
 		printk(KERN_ERR "cs4270: failed to attach driver");
-		snd_soc_free_pcms(socdev);
-		return ret;
+		goto error_free_pcms;
 	}
 
 	/* Did we find a CS4270 on the I2C bus? */
@@ -713,10 +712,23 @@ static int cs4270_probe(struct platform_device *pdev)
 	ret = snd_soc_register_card(socdev);
 	if (ret < 0) {
 		printk(KERN_ERR "cs4270: failed to register card\n");
-		snd_soc_free_pcms(socdev);
-		return ret;
+		goto error_del_driver;
 	}
 
+	return 0;
+
+error_del_driver:
+#ifdef USE_I2C
+	i2c_del_driver(&cs4270_i2c_driver);
+
+error_free_pcms:
+#endif
+	snd_soc_free_pcms(socdev);
+
+error_free_codec:
+	kfree(socdev->codec);
+	socdev->codec = NULL;
+
 	return ret;
 }
 
@@ -727,8 +739,7 @@ static int cs4270_remove(struct platform_device *pdev)
 	snd_soc_free_pcms(socdev);
 
 #ifdef USE_I2C
-	if (socdev->codec->control_data)
-		i2c_del_driver(&cs4270_i2c_driver);
+	i2c_del_driver(&cs4270_i2c_driver);
 #endif
 
 	kfree(socdev->codec);
diff --git a/sound/soc/codecs/wm8753.c b/sound/soc/codecs/wm8753.c
index 5761164..e873414 100644
--- a/sound/soc/codecs/wm8753.c
+++ b/sound/soc/codecs/wm8753.c
@@ -583,7 +583,7 @@ static const struct snd_soc_dapm_route audio_map[] = {
 
 	/* out 4 */
 	{"Out4 Mux", "VREF", "VREF"},
-	{"Out4 Mux", "Capture ST", "Capture ST Mixer"},
+	{"Out4 Mux", "Capture ST", "Playback Mixer"},
 	{"Out4 Mux", "LOUT2", "LOUT2"},
 	{"Out 4", NULL, "Out4 Mux"},
 	{"OUT4", NULL, "Out 4"},
@@ -607,7 +607,7 @@ static const struct snd_soc_dapm_route audio_map[] = {
 	/* Capture Right Mux */
 	{"Capture Right Mux", "PGA", "Right Capture Volume"},
 	{"Capture Right Mux", "Line or RXP-RXN", "Line Right Mux"},
-	{"Capture Right Mux", "Sidetone", "Capture ST Mixer"},
+	{"Capture Right Mux", "Sidetone", "Playback Mixer"},
 
 	/* Mono Capture mixer-mux */
 	{"Capture Right Mixer", "Stereo", "Capture Right Mux"},