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git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
* 'perf-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
kprobes/x86: Fix the return address of multiple kretprobes
perf tools: Fix build error on read only source.
perf, x86: Fix Intel-nhm PMU programming errata workaround
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Fix the return address of subsequent kretprobes when multiple
kretprobes are set on the same function.
For example:
# cd /sys/kernel/debug/tracing
# echo "r:event1 sys_symlink" > kprobe_events
# echo "r:event2 sys_symlink" >> kprobe_events
# echo 1 > events/kprobes/enable
# ln -s /tmp/foo /tmp/bar
(without this patch)
# cat trace
ln-897 [000] 20404.133727: event1: (kretprobe_trampoline+0x0/0x4c <- sys_symlink)
ln-897 [000] 20404.133747: event2: (system_call_fastpath+0x16/0x1b <- sys_symlink)
(with this patch)
# cat trace
ln-740 [000] 13799.491076: event1: (system_call_fastpath+0x16/0x1b <- sys_symlink)
ln-740 [000] 13799.491096: event2: (system_call_fastpath+0x16/0x1b <- sys_symlink)
Signed-off-by: KUMANO Syuhei <kumano.prog@gmail.com>
Reviewed-by: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Ananth N Mavinakayanahalli <ananth@in.ibm.com>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
LKML-Reference: <1281853084.3254.11.camel@camp10-laptop>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
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Fix the Errata AAK100/AAP53/BD53 workaround, the officialy documented
workaround we implemented in:
11164cd: perf, x86: Add Nehelem PMU programming errata workaround
doesn't actually work fully and causes a stuck PMU state
under load and non-functioning perf profiling.
A functional workaround was found by trial & error.
Affects all Nehalem-class Intel PMUs.
Signed-off-by: Zhang Yanmin <yanmin_zhang@linux.intel.com>
Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
LKML-Reference: <1281073148.2125.63.camel@ymzhang.sh.intel.com>
Cc: Arjan van de Ven <arjan@linux.intel.com>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: <stable@kernel.org> # .35.x
Signed-off-by: Ingo Molnar <mingo@elte.hu>
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git://git.kernel.org/pub/scm/linux/kernel/git/aegl/linux-2.6
* 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/aegl/linux-2.6:
[IA64] Fix build error: conflicting types for ‘sys_execve’
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arch/ia64/kernel/process.c:636: error: conflicting types for ‘sys_execve’
commit d7627467b7a8dd6944885290a03a07ceb28c10eb
Make do_execve() take a const filename pointer
Missed the declaration of sys_execve in the ia64 asm/unistd.h (perhaps
because there is no reason for it to be there ... it might be a left over
from the COMPAT code?). Just delete the conflicting version.
Signed-off-by: Tony Luck <tony.luck@intel.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/gerg/m68knommu
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/gerg/m68knommu:
m68knommu: include sched.h in ColdFire/SPI driver
m68knommu: formatting of pointers in printk()
m68knommu: arch/m68k/include/asm/ide.h fix for nommu
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arch/m68knommu/kernel/process.c: formatting of pointers in printk()
Use %p instead of %08x in printk().
Signed-off-by: Kulikov Vasiliy <segooon@gmail.com>
Signed-off-by: Greg Ungerer <gerg@uclinux.org>
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The arch/m68k/include/asm/ide.h produces errors when the IDE driver is compiled for my 523x uClinux system under kernel. The header makes some redefines of operators not defined in the arch/m68k/include/asm/io_no.h header. There are no separate mmio and iospace defines.
Signed-off-by: Jate Sujjavanich <jsujjavanich@syntech-fuelmaster.com>
Acked-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Greg Ungerer <gerg@uclinux.org>
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* 'merge-devicetree' of git://git.secretlab.ca/git/linux-2.6:
spi.h: missing kernel-doc notation, please fix
of: fix missing headers for of_address_to_resource() in MTD and SysACE drivers
of: Fix missing includes
ata: update for of_device to platform_device replacement
microblaze: Fix of: eliminate of_device->node and dev_archdata->{of,prom}_node
microblaze: Fix of/address: Merge all of the bus translation code
booting-without-of: Remove nonexistent chapters from TOC, fix numbering
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This patch fixes missing includes from a number of .c files because
the code (wrongfully) depended on prom.h including them. The include
of linux/of_address.h was removed in microblaze prom.h in commit
"of/address: Clean up function declarations" (sha1 id 22ae782f8), but
not fixed in some callers. This patch fixes them up.
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
Tested-by: Michal Simek <monstr@monstr.eu>
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Commit 58f9b0b02414062eaff46716bc04b47d7e79add5 should
contain this fix too.
Signed-off-by: Michal Simek <monstr@monstr.eu>
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
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Commit dbbdee94734bf6f1db7af42008a53655e77cab8f removed
of_irq_pci_swizzle but didn't use pci_swizzle_interrupt_pin
instead.
Signed-off-by: Michal Simek <monstr@monstr.eu>
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
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git://git.kernel.org/pub/scm/linux/kernel/git/jwessel/linux-2.6-kgdb
* 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jwessel/linux-2.6-kgdb:
vt,console,kdb: preserve console_blanked while in kdb
vt: fix regression warnings from KMS merge
arm,kgdb: fix GDB_MAX_REGS no longer used
kgdb: add missing __percpu markup in arch/x86/kernel/kgdb.c
kdb: fix compile error without CONFIG_KALLSYMS
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According to commit 22eeef4bb2a7fd225089c0044060ed1fbf091958
kgdb,arm: Individual register get/set for arm
It's now replaced by DBG_MAX_REG_NUM.
Signed-off-by: Eric Miao <eric.y.miao@gmail.com>
Signed-off-by: Jason Wessel <jason.wessel@windriver.com>
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breakinfo->pev is a pointer to percpu pointer but was missing __percpu markup.
Add it.
Signed-off-by: Namhyung Kim <namhyung@gmail.com>
Signed-off-by: Jason Wessel <jason.wessel@windriver.com>
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* git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc-2.6:
sparc64: Fix atomic64_t routine return values.
sparc64: Fix rwsem constant bug leading to hangs.
sparc: Hook up new fanotify and prlimit64 syscalls.
sparc: Really fix "console=" for serial consoles.
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Should return 'long' instead of 'int'.
Thanks to Dimitris Michailidis and Tony Luck.
Signed-off-by: David S. Miller <davem@davemloft.net>
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As noticed by Linus, it is critical that some of the
rwsem constants be signed. Yet, hex constants are
unsigned unless explicitly casted or negated.
The most critical one is RWSEM_WAITING_BIAS.
This bug was exacerbated by commit
424acaaeb3a3932d64a9b4bd59df6cf72c22d8f3 ("rwsem: wake queued readers
when writer blocks on active read lock")
Signed-off-by: David S. Miller <davem@davemloft.net>
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The only tricky bit is the compat version of fanotify_mark, which
which on 32-bit the 64-bit mark argument is passed in as "high32",
"low32".
Signed-off-by: David S. Miller <davem@davemloft.net>
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git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6
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If a video head and keyboard are hooked up, specifying "console=ttyS0"
or similar to use a serial console will not work properly.
The key issue is that we must register all serial console capable
devices with register_console(), otherwise the command line specified
device won't be found. The sun serial drivers would only register
themselves as console devices if the OpenFirmware specified console
device node matched. To fix this part we now unconditionally get
the serial console register by setting serial_drv->cons always.
Secondarily we must not add_preferred_console() using the firmware
provided console setting if the user gaven an override on the kernel
command line using "console=" The "primary framebuffer" matching
logic was always triggering o n openfirmware device node match, make
it not when a command line override was given.
Reported-by: Frans Pop <elendil@planet.nl>
Tested-by: Frans Pop <elendil@planet.nl>
Signed-off-by: David S. Miller <davem@davemloft.net>
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* master.kernel.org:/home/rmk/linux-2.6-arm:
VIDEO: amba clcd: don't disable an already disabled clock
ARM: Tighten check for allowable CPSR values
ARM: 6329/1: wire up sys_accept4() on ARM
ARM: 6328/1: Build with -fno-dwarf2-cfi-asm
ARM: 6326/1: kgdb: fix GDB_MAX_REGS no longer used
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Reviewed-by: Arve Hjønnevåg <arve@android.com>
Acked-by: Dima Zavin <dima@android.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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sys_accept4() was added in kernel 2.6.28, but ARM was not updated
to include it. The number and types of parameters is such that
no ARM-specific processing is needed, so wiring up sys_accept4()
just requires defining __NR_accept4 and adding a direct call in
the syscall entry table.
Tested with an EABI 2.6.35 kernel and Ulrich Drepper's original
accept4() test program, modified to define __NR_accept4 for ARM.
Using the updated unistd.h also eliminates a warning then building
glibc (2.10.2 and newer) about accept4() being unimplemented.
Signed-off-by: Mikael Pettersson <mikpe@it.uu.se>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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Commit d0679c7 restricted this workaround to powerpc only, but it turns
out that ARM needs it as well. Fixes
https://bugzilla.kernel.org/show_bug.cgi?id=16310 .
Reported-and-Tested-by: Robert Nelson <robertcnelson@gmail.com>
Acked-by: Mikael Pettersson <mikpe@it.uu.se>
Signed-off-by: Michal Marek <mmarek@suse.cz>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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According to commit 22eeef4bb2a7fd225089c0044060ed1fbf091958
kgdb,arm: Individual register get/set for arm
It's now replaced by DBG_MAX_REG_NUM.
Cc: Jason Wessel <jason.wessel@windriver.com>
Signed-off-by: Eric Miao <eric.y.miao@gmail.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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Make do_execve() take a const filename pointer so that kernel_execve() compiles
correctly on ARM:
arch/arm/kernel/sys_arm.c:88: warning: passing argument 1 of 'do_execve' discards qualifiers from pointer target type
This also requires the argv and envp arguments to be consted twice, once for
the pointer array and once for the strings the array points to. This is
because do_execve() passes a pointer to the filename (now const) to
copy_strings_kernel(). A simpler alternative would be to cast the filename
pointer in do_execve() when it's passed to copy_strings_kernel().
do_execve() may not change any of the strings it is passed as part of the argv
or envp lists as they are some of them in .rodata, so marking these strings as
const should be fine.
Further kernel_execve() and sys_execve() need to be changed to match.
This has been test built on x86_64, frv, arm and mips.
Signed-off-by: David Howells <dhowells@redhat.com>
Tested-by: Ralf Baechle <ralf@linux-mips.org>
Acked-by: Russell King <rmk+kernel@arm.linux.org.uk>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux-acpi-2.6
* 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux-acpi-2.6:
gcc-4.6: ACPI: fix unused but set variables in ACPI
ACPI thermal: make procfs I/F depend on CONFIG_ACPI_PROCFS
ACPI video: make procfs I/F depend on CONFIG_ACPI_PROCFS
ACPI processor: remove deprecated ACPI procfs I/F
ACPI power_resource: remove unused procfs I/F
ACPI: remove deprecated ACPI procfs I/F
ACPI: introduce drivers/acpi/sysfs.c
ACPI: introduce module parameter acpi.aml_debug_output
ACPI: introduce drivers/acpi/debugfs.c
ACPI, APEI, ERST debug support
ACPI, APEI, Manage GHES as platform devices
ACPI, APEI, Rename CPER and GHES severity constants
ACPI, APEI, Fix a typo of error path of apei_resources_request
ACPI / ACPICA: Fix reference counting problems with GPE handlers
ACPI: Add the check of ADR flag in course of finding ACPI handle for PCI device
ACPI / Sleep: Drop acpi_suspend_finish()
ACPI / Sleep: Consolidate suspend and hibernation routines
ACPI / Wakeup: Simplify enabling of wakeup devices
ACPI / Sleep: Rework enabling wakeup devices
ACPI / Sleep: Free NVS copy if suspending of devices fails
Fixed up totally buggered "ACPI: fix unused but set variables in ACPI"
patch that doesn't even compile in the merge.
Thanks to Sedat Dilek <sedat.dilek@googlemail.com> for noticing the
breakage before I even pulled. And a big "Grrr.." at Len for not even
bothering to compile the tree before asking me to pull.
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Conflicts:
drivers/acpi/debug.c
Signed-off-by: Len Brown <len.brown@intel.com>
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The abbreviation of severity should be SEV instead of SER, so the CPER
severity constants are renamed accordingly. GHES severity constants
are renamed in the same way too.
Signed-off-by: Huang Ying <ying.huang@intel.com>
Signed-off-by: Andi Kleen <ak@linux.intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
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* git://git.infradead.org/mtd-2.6:
mtd/nand_ids: Fix buswidth
mtd/m25p80: fix test for end of loop
mtd/m25p80: retlen is never NULL
MIPS: Fix gen_nand probe structures contents
gen_nand: Test if nr_chips field is valid
BFIN: Fix gen_nand probe structures contents
nand/denali: move all hardware initialization work to denali_hw_init
nand/denali: Add a page check in denali_read_page & denali_read_page_raw
nand/denali: use cpu_relax() while waiting for hardware interrupt
nand/denali: change read_status function method
nand/denali: Fixed check patch warnings
ARM: Fix gen_nand probe structures contents
mtd/nand_base: fix kernel-doc warnings & typos
nand/denali: use dev_xx debug function to replace nand_dbg_print and some printk
nand/denali: Fixed handle ECC error bugs
nand/denali: use iowrite32() to replace denali_write32()
nand/denali: Fixed probe function bugs
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This platform didn't properly fill nr_chips in gen_nand
registration and therefore depended on gen_nand bug fixed by commit
81cbb0b17796d81cbd92defe113cf2a7c7a21fbb ("mtd: gen_nand: fix support for
multiple chips")
Signed-off-by: Marek Vasut <marek.vasut@gmail.com>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
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These two platforms didn't properly fill nr_chips in gen_nand
registration and therefore depended on gen_nand bug fixed by by commit
81cbb0b17796d81cbd92defe113cf2a7c7a21fbb ("mtd: gen_nand: fix support for
multiple chips")
Signed-off-by: Marek Vasut <marek.vasut@gmail.com>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
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These three platforms didn't properly fill nr_chips in gen_nand
registration and therefore depended on gen_nand bug fixed by commit
81cbb0b17796d81cbd92defe113cf2a7c7a21fbb ("mtd: gen_nand: fix support for
multiple chips")
Signed-off-by: Marek Vasut <marek.vasut@gmail.com>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
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* git://git.kernel.org/pub/scm/linux/kernel/git/cmetcalf/linux-tile:
arch/tile: don't validate CROSS_COMPILE needlessly
arch/tile: export only COMMAND_LINE_SIZE to userspace.
arch/tile: rename ARCH_KMALLOC_MINALIGN to ARCH_DMA_MINALIGN
arch/tile: Rename the hweight() implementations to __arch_hweight()
arch/tile: extend syscall ABI to set r1 on return as well.
arch/tile: Various cleanups.
arch/tile: support backtracing on TILE-Gx
arch/tile: Fix a couple of issues with the COMPAT code for TILE-Gx.
arch/tile: Use separate, better minsec values for clocksource and sched_clock.
arch/tile: correct a bug in freeing bootmem by VA for the optional second initrd.
arch: tile: mm: pgtable.c: Removed duplicated #include
arch: tile: kernel/proc.c Removed duplicated #include
Add fanotify syscalls to <asm-generic/unistd.h>.
arch/tile: support new kunmap_atomic() naming convention.
tile: remove unused ISA_DMA_THRESHOLD define
Conflicts in arch/tile/configs/tile_defconfig (pick the mainline version
with the reduced defconfig).
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With this change, the arch/tile Makefile will only check for a valid
combination of CROSS_COMPILE vs "uname -m" for a few common targets
that are typically the ones we get wrong (vmlinux, all, and modules).
The change handles the case of an empty "make" goal like "make all".
Signed-off-by: Chris Metcalf <cmetcalf@tilera.com>
Reviewed-by: Sam Ravnborg <sam@ravnborg.org>
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This fixes a failure in "make headers_check" for tile.
I hadn't realized this file was exported to userspace by default.
Signed-off-by: Chris Metcalf <cmetcalf@tilera.com>
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See commit a6eb9fe105d5de0053b261148cee56c94b4720ca.
Signed-off-by: Chris Metcalf <cmetcalf@tilera.com>
Acked-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
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See commit 1527bc8b928dd1399c3d3467dd47d9ede210978a.
Signed-off-by: Chris Metcalf <cmetcalf@tilera.com>
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Until now, the tile architecture ABI for syscall return has just been
that r0 holds the return value, and an error is only signalled like it is
for kernel code, with a negative small number.
However, this means that in multiple places in userspace we end up writing
the same three-cycle idiom that tests for a small negative number for
error. It seems cleaner to instead move that code into the kernel, and
set r1 to hold zero on success or errno on failure; previously, r1 was
just zeroed on return from the kernel (to avoid leaking kernel state).
This way a single conditional branch after the syscall is sufficient
to test for the failure case. The number of cycles taken is the same,
but the error-checking code is in just one place, so total code size is
smaller, and random userspace syscall code is easier to understand.
Signed-off-by: Chris Metcalf <cmetcalf@tilera.com>
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This change rolls up random cleanups not representing any actual bugs.
- Remove a stale CONFIG_ value from the default tile_defconfig
- Remove unused tns_atomic_xxx() family of methods from <asm/atomic.h>
- Optimize get_order() using Tile's "clz" instruction
- Fix a bad hypervisor upcall name (not currently used in Linux anyway)
- Use __copy_in_user_inatomic() name for consistency, and export it
- Export some additional hypervisor driver I/O upcalls and some homecache calls
- Remove the obfuscating MEMCPY_TEST_WH64 support code
- Other stray comment cleanups, #if 0 removal, etc.
Signed-off-by: Chris Metcalf <cmetcalf@tilera.com>
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This functionality was stubbed out until recently. Now we support our
normal backtracing API on TILE-Gx as well as on TILE64/TILEPro.
This change includes a tweak to the instruction encoding caused by
adding addxli for compat mode.
Signed-off-by: Chris Metcalf <cmetcalf@tilera.com>
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First, the siginfo preamble wasn't quite right; we need to indicate
that we are padding up to 4 ints of preamble for 64-bit code, and
then for compat mode we need to pad differently, using only 3 ints.
Second, the C ABI requires a save area of two registers, not two
pointers, since in compat mode we have 64-bit registers all of which
we need to save, even though we only have 32-bit VAs.
Signed-off-by: Chris Metcalf <cmetcalf@tilera.com>
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We were using the same 5-sec minsec for the clocksource and sched_clock
that we were using for the clock_event_device. For the clock_event_device
that's exactly right since it has a short maximum countdown time.
But for sched_clock we want to avoid wraparound when converting from
ticks to nsec over a much longer window, so we force a shift of 10.
And for clocksource it seems dodgy to use a 5-sec minsec as well, so we
copy some other platforms and force a shift of 22.
Signed-off-by: Chris Metcalf <cmetcalf@tilera.com>
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initrd.
Signed-off-by: Chris Metcalf <cmetcalf@tilera.com>
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Signed-off-by: Andrea Gelmini <andrea.gelmini@gelma.net>
Signed-off-by: Chris Metcalf <cmetcalf@tilera.com>
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Signed-off-by: Andrea Gelmini <andrea.gelmini@gelma.net>
Signed-off-by: Chris Metcalf <cmetcalf@tilera.com>
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See commit 597781f3e51f48ef8e67be772196d9e9673752c4.
Signed-off-by: Chris Metcalf <cmetcalf@tilera.com>
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No need to define ISA_DMA_THRESHOLD
Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
[cmetcalf@tilera.com: converted to a single-line #include file]
Signed-off-by: Chris Metcalf <cmetcalf@tilera.com>
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