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* Merge branch 'signal-cleanup' of ↵Linus Torvalds2014-08-091-30/+20
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/rw/misc Pull arch signal handling cleanup from Richard Weinberger: "This patch series moves all remaining archs to the get_signal(), signal_setup_done() and sigsp() functions. Currently these archs use open coded variants of the said functions. Further, unused parameters get removed from get_signal_to_deliver(), tracehook_signal_handler() and signal_delivered(). At the end of the day we save around 500 lines of code." * 'signal-cleanup' of git://git.kernel.org/pub/scm/linux/kernel/git/rw/misc: (43 commits) powerpc: Use sigsp() openrisc: Use sigsp() mn10300: Use sigsp() mips: Use sigsp() microblaze: Use sigsp() metag: Use sigsp() m68k: Use sigsp() m32r: Use sigsp() hexagon: Use sigsp() frv: Use sigsp() cris: Use sigsp() c6x: Use sigsp() blackfin: Use sigsp() avr32: Use sigsp() arm64: Use sigsp() arc: Use sigsp() sas_ss_flags: Remove nested ternary if Rip out get_signal_to_deliver() Clean up signal_delivered() tracehook_signal_handler: Remove sig, info, ka and regs ...
| * avr32: Use sigsp()Richard Weinberger2014-08-061-6/+3
| | | | | | | | | | | | | | Use sigsp() instead of the open coded variant. Signed-off-by: Richard Weinberger <richard@nod.at> Acked-by: Hans-Christian Egtvedt <egtvedt@samfundet.no>
| * avr32: Use get_signal() signal_setup_done()Richard Weinberger2014-08-061-25/+18
| | | | | | | | | | | | | | | | Use the more generic functions get_signal() signal_setup_done() for signal delivery. Signed-off-by: Richard Weinberger <richard@nod.at> Acked-by: Hans-Christian Egtvedt <egtvedt@samfundet.no>
* | Merge tag 'drivers-for-3.17' of ↵Linus Torvalds2014-08-0811-63/+96
|\ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc Pull ARM SoC driver changes from Olof Johansson: "A handful of driver-related changes. We've had a bunch of them going in through other branches as well, so it's only a part of what we really have this release. Larger pieces are: - Removal of a now unused PWM driver for atmel [ This includes AVR32 changes that have been appropriately acked ] - Performance counter support for the arm CCN interconnect - OMAP mailbox driver cleanups and consolidation - PCI and SATA PHY drivers for SPEAr 13xx platforms - Redefinition (with backwards compatibility!) of PCI DT bindings for Tegra to better model regulators/power" Note: this merge also fixes up the semantic conflict with the new calling convention for devm_phy_create(), see commit f0ed817638b5 ("phy: core: Let node ptr of PHY point to PHY and not of PHY provider") that came in through Greg's USB tree. Semantic merge patch by Stephen Rothwell <sfr@canb.auug.org.au> through the next tree. * tag 'drivers-for-3.17' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (38 commits) bus: arm-ccn: Fix error handling at event allocation mailbox/omap: add a parent structure for every IP instance mailbox/omap: remove the private mailbox structure mailbox/omap: consolidate OMAP mailbox driver mailbox/omap: simplify the fifo assignment by using macros mailbox/omap: remove omap_mbox_type_t from mailbox ops mailbox/omap: remove OMAP1 mailbox driver mailbox/omap: use devm_* interfaces bus: ARM CCN: add PERF_EVENTS dependency bus: ARM CCN PMU driver PCI: spear: Remove spear13xx_pcie_remove() PCI: spear: Fix Section mismatch compilation warning for probe() ARM: tegra: Remove legacy PCIe power supply properties PCI: tegra: Remove deprecated power supply properties PCI: tegra: Implement accurate power supply scheme ARM: SPEAr13xx: Update defconfigs ARM: SPEAr13xx: Add pcie and miphy DT nodes ARM: SPEAr13xx: Add bindings and dt node for misc block ARM: SPEAr13xx: Fix static mapping table phy: Add drivers for PCIe and SATA phy on SPEAr13xx ...
| * | avr32: update defconfig to use the generic PWM frameworkAlexandre Belloni2014-07-096-12/+18
| | | | | | | | | | | | | | | | | | | | | | | | | | | Now that all boards have switched to the generic PWM framework, update the defconfigs to use it. Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com> Acked-by: Hans-Christian Egtvedt <egtvedt@samfundet.no> Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
| * | avr32: favr-32: use generic pwm_bl driverAlexandre Belloni2014-07-092-21/+33
| | | | | | | | | | | | | | | | | | | | | | | | Switch to the generic pwm_bl driver instead of atmel-pwm-bl. Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com> Acked-by: Hans-Christian Egtvedt <egtvedt@samfundet.no> Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
| * | avr32: merisc: use generic leds_pwm driverAlexandre Belloni2014-07-091-13/+21
| | | | | | | | | | | | | | | | | | | | | | | | Switch to the generic leds_pwm driver instead of leds-atmel-pwm. Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com> Acked-by: Hans-Christian Egtvedt <egtvedt@samfundet.no> Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
| * | avr32: MRMT: use generic leds_pwm driverAlexandre Belloni2014-07-091-12/+22
| | | | | | | | | | | | | | | | | | | | | | | | Switch to the generic leds_pwm driver instead of leds-atmel-pwm. Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com> Acked-by: Hans-Christian Egtvedt <egtvedt@samfundet.no> Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
| * | avr32/at32ap: switch to the generic PWM frameworkAlexandre Belloni2014-07-091-5/+2
| |/ | | | | | | | | | | | | | | Switch to the pwm/pwm-atmel driver instead of misc/atmel_pwm Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com> Acked-by: Hans-Christian Egtvedt <egtvedt@samfundet.no> Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
* | Merge branch 'for-linus' of ↵Linus Torvalds2014-08-071-3/+8
|\ \ | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/egtvedt/linux-avr32 Pull avr32 fix from Hans-Christian Egtvedt. * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/egtvedt/linux-avr32: avr32: fix error return code
| * | avr32: fix error return codeJulia Lawall2014-08-071-3/+8
| |/ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Convert a zero return value on error to a negative one, as returned elsewhere in the function. A simplified version of the semantic match that finds this problem is as follows: (http://coccinelle.lip6.fr/) // <smpl> @@ identifier ret; expression e1,e2; @@ ( if (\(ret < 0\|ret != 0\)) { ... return ret; } | ret = 0 ) ... when != ret = e1 when != &ret *if(...) { ... when != ret = e2 when forall return ret; } // </smpl> Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr> Acked-by: Hans-Christian Egtvedt <egtvedt@samfundet.no>
* | arch, locking: Ciao arch_mutex_cpu_relax()Davidlohr Bueso2014-07-171-0/+1
|/ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The arch_mutex_cpu_relax() function, introduced by 34b133f, is hacky and ugly. It was added a few years ago to address the fact that common cpu_relax() calls include yielding on s390, and thus impact the optimistic spinning functionality of mutexes. Nowadays we use this function well beyond mutexes: rwsem, qrwlock, mcs and lockref. Since the macro that defines the call is in the mutex header, any users must include mutex.h and the naming is misleading as well. This patch (i) renames the call to cpu_relax_lowlatency ("relax, but only if you can do it with very low latency") and (ii) defines it in each arch's asm/processor.h local header, just like for regular cpu_relax functions. On all archs, except s390, cpu_relax_lowlatency is simply cpu_relax, and thus we can take it out of mutex.h. While this can seem redundant, I believe it is a good choice as it allows us to move out arch specific logic from generic locking primitives and enables future(?) archs to transparently define it, similarly to System Z. Signed-off-by: Davidlohr Bueso <davidlohr@hp.com> Signed-off-by: Peter Zijlstra <peterz@infradead.org> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: Anton Blanchard <anton@samba.org> Cc: Aurelien Jacquiot <a-jacquiot@ti.com> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Bharat Bhushan <r65777@freescale.com> Cc: Catalin Marinas <catalin.marinas@arm.com> Cc: Chen Liqin <liqin.linux@gmail.com> Cc: Chris Metcalf <cmetcalf@tilera.com> Cc: Christian Borntraeger <borntraeger@de.ibm.com> Cc: Chris Zankel <chris@zankel.net> Cc: David Howells <dhowells@redhat.com> Cc: David S. Miller <davem@davemloft.net> Cc: Deepthi Dharwar <deepthi@linux.vnet.ibm.com> Cc: Dominik Dingel <dingel@linux.vnet.ibm.com> Cc: Fenghua Yu <fenghua.yu@intel.com> Cc: Geert Uytterhoeven <geert@linux-m68k.org> Cc: Guan Xuetao <gxt@mprc.pku.edu.cn> Cc: Haavard Skinnemoen <hskinnemoen@gmail.com> Cc: Hans-Christian Egtvedt <egtvedt@samfundet.no> Cc: Heiko Carstens <heiko.carstens@de.ibm.com> Cc: Helge Deller <deller@gmx.de> Cc: Hirokazu Takata <takata@linux-m32r.org> Cc: Ivan Kokshaysky <ink@jurassic.park.msu.ru> Cc: James E.J. Bottomley <jejb@parisc-linux.org> Cc: James Hogan <james.hogan@imgtec.com> Cc: Jason Wang <jasowang@redhat.com> Cc: Jesper Nilsson <jesper.nilsson@axis.com> Cc: Joe Perches <joe@perches.com> Cc: Jonas Bonn <jonas@southpole.se> Cc: Joseph Myers <joseph@codesourcery.com> Cc: Kees Cook <keescook@chromium.org> Cc: Koichi Yasutake <yasutake.koichi@jp.panasonic.com> Cc: Lennox Wu <lennox.wu@gmail.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Mark Salter <msalter@redhat.com> Cc: Martin Schwidefsky <schwidefsky@de.ibm.com> Cc: Matt Turner <mattst88@gmail.com> Cc: Max Filippov <jcmvbkbc@gmail.com> Cc: Michael Neuling <mikey@neuling.org> Cc: Michal Simek <monstr@monstr.eu> Cc: Mikael Starvik <starvik@axis.com> Cc: Nicolas Pitre <nico@linaro.org> Cc: Paolo Bonzini <pbonzini@redhat.com> Cc: Paul Burton <paul.burton@imgtec.com> Cc: Paul E. McKenney <paulmck@linux.vnet.ibm.com> Cc: Paul Gortmaker <paul.gortmaker@windriver.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Qais Yousef <qais.yousef@imgtec.com> Cc: Qiaowei Ren <qiaowei.ren@intel.com> Cc: Rafael Wysocki <rafael.j.wysocki@intel.com> Cc: Ralf Baechle <ralf@linux-mips.org> Cc: Richard Henderson <rth@twiddle.net> Cc: Richard Kuo <rkuo@codeaurora.org> Cc: Russell King <linux@arm.linux.org.uk> Cc: Steven Miao <realmz6@gmail.com> Cc: Steven Rostedt <srostedt@redhat.com> Cc: Stratos Karafotis <stratosk@semaphore.gr> Cc: Tim Chen <tim.c.chen@linux.intel.com> Cc: Tony Luck <tony.luck@intel.com> Cc: Vasily Kulikov <segoon@openwall.com> Cc: Vineet Gupta <vgupta@synopsys.com> Cc: Vineet Gupta <Vineet.Gupta1@synopsys.com> Cc: Waiman Long <Waiman.Long@hp.com> Cc: Will Deacon <will.deacon@arm.com> Cc: Wolfram Sang <wsa@the-dreams.de> Cc: adi-buildroot-devel@lists.sourceforge.net Cc: linux390@de.ibm.com Cc: linux-alpha@vger.kernel.org Cc: linux-am33-list@redhat.com Cc: linux-arm-kernel@lists.infradead.org Cc: linux-c6x-dev@linux-c6x.org Cc: linux-cris-kernel@axis.com Cc: linux-hexagon@vger.kernel.org Cc: linux-ia64@vger.kernel.org Cc: linux@lists.openrisc.net Cc: linux-m32r-ja@ml.linux-m32r.org Cc: linux-m32r@ml.linux-m32r.org Cc: linux-m68k@lists.linux-m68k.org Cc: linux-metag@vger.kernel.org Cc: linux-mips@linux-mips.org Cc: linux-parisc@vger.kernel.org Cc: linuxppc-dev@lists.ozlabs.org Cc: linux-s390@vger.kernel.org Cc: linux-sh@vger.kernel.org Cc: linux-xtensa@linux-xtensa.org Cc: sparclinux@vger.kernel.org Link: http://lkml.kernel.org/r/1404079773.2619.4.camel@buesod1.americas.hpqcorp.net Signed-off-by: Ingo Molnar <mingo@kernel.org>
* Merge branch 'locking-core-for-linus' of ↵Linus Torvalds2014-06-032-12/+2
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip into next Pull core locking updates from Ingo Molnar: "The main changes in this cycle were: - reduced/streamlined smp_mb__*() interface that allows more usecases and makes the existing ones less buggy, especially in rarer architectures - add rwsem implementation comments - bump up lockdep limits" * 'locking-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (33 commits) rwsem: Add comments to explain the meaning of the rwsem's count field lockdep: Increase static allocations arch: Mass conversion of smp_mb__*() arch,doc: Convert smp_mb__*() arch,xtensa: Convert smp_mb__*() arch,x86: Convert smp_mb__*() arch,tile: Convert smp_mb__*() arch,sparc: Convert smp_mb__*() arch,sh: Convert smp_mb__*() arch,score: Convert smp_mb__*() arch,s390: Convert smp_mb__*() arch,powerpc: Convert smp_mb__*() arch,parisc: Convert smp_mb__*() arch,openrisc: Convert smp_mb__*() arch,mn10300: Convert smp_mb__*() arch,mips: Convert smp_mb__*() arch,metag: Convert smp_mb__*() arch,m68k: Convert smp_mb__*() arch,m32r: Convert smp_mb__*() arch,ia64: Convert smp_mb__*() ...
| * arch,avr32: Convert smp_mb__*()Peter Zijlstra2014-04-182-12/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | AVR32's mb() implementation is a compiler barrier(), therefore it all doesn't matter, fully rely on whatever asm-generic/barrier.h generates. Signed-off-by: Peter Zijlstra <peterz@infradead.org> Acked-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com> Link: http://lkml.kernel.org/n/tip-8gow97a7mapmnec0pvf729pj@git.kernel.org Cc: Haavard Skinnemoen <hskinnemoen@gmail.com> Cc: Hans-Christian Egtvedt <egtvedt@samfundet.no> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: linux-kernel@vger.kernel.org Signed-off-by: Ingo Molnar <mingo@kernel.org>
* | USB: delete CONFIG_USB_DEVICEFS from defconfigNaoki MATSUMOTO2014-05-271-1/+0
|/ | | | | | | | It no longer occurs in Kconfig. USB: remove CONFIG_USB_DEVICEFS(fb28d58b) leaked remove defconfig. Signed-off-by: Naoki MATSUMOTO <nekomatu+linux@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* Merge tag 'char-misc-3.15-rc1' of ↵Linus Torvalds2014-04-012-83/+1
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc Pull char/misc driver patches from Greg KH: "Here's the big char/misc driver updates for 3.15-rc1. Lots of various things here, including the new mcb driver subsystem. All of these have been in linux-next for a while" * tag 'char-misc-3.15-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc: (118 commits) extcon: Move OF helper function to extcon core and change function name extcon: of: Remove unnecessary function call by using the name of device_node extcon: gpio: Use SIMPLE_DEV_PM_OPS macro extcon: palmas: Use SIMPLE_DEV_PM_OPS macro mei: don't use deprecated DEFINE_PCI_DEVICE_TABLE macro mei: amthif: fix checkpatch error mei: client.h fix checkpatch errors mei: use cl_dbg where appropriate mei: fix Unnecessary space after function pointer name mei: report consistently copy_from/to_user failures mei: drop pr_fmt macros mei: make me hw headers private to me hw. mei: fix memory leak of pending write cb objects mei: me: do not reset when less than expected data is received drivers: mcb: Fix build error discovered by 0-day bot cs5535-mfgpt: Simplify dependencies spmi: pm: drop bus-level PM suspend/resume routines spmi: pmic_arb: make selectable on ARCH_QCOM Drivers: hv: vmbus: Increase the limit on the number of pfns we can handle pch_phub: Report error writing MAC back to user ...
| * misc: delete mimc200 fram driverGreg Kroah-Hartman2014-02-282-83/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | To quote Mark: I think it's safe to delete the driver. The mimc200 unit is now basically obsolete and there'll be no new development on it. Becides, it grabs the 0 misc minor number, when it never asked for it, conflicting with the logitech bus mouse driver. Cc: Mark Jackson <mpfj@mimc.co.uk> Cc: Haavard Skinnemoen <haavard.skinnemoen@atmel.com> Cc: Lucas De Marchi <lucas.de.marchi@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* | Merge branch 'for-linus' of ↵Linus Torvalds2014-04-014-29/+29
|\ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/egtvedt/linux-avr32 Pull AVR32 updates from Hans-Christian Egtvedt. * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/egtvedt/linux-avr32: avr32: replace simple_strtoul() with kstrtoul() arch/avr32/mm/cache.c: export symbol flush_icache_range() for module using avr32: remove cpu_data macro to fix compiles
| * | avr32: replace simple_strtoul() with kstrtoul()Ramkumar Ramachandra2014-04-011-22/+26
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | simple_strtoul() is marked for obsoletion; use the newer and more pleasant kstrtoul() in its place. Cc: Alexey Dobriyan <adobriyan@gmail.com> Cc: Haavard Skinnemoen <hskinnemoen@gmail.com> Cc: Hans-Christian Egtvedt <egtvedt@samfundet.no> Signed-off-by: Ramkumar Ramachandra <artagnon@gmail.com> Signed-off-by: Hans-Christian Egtvedt <egtvedt@samfundet.no>
| * | arch/avr32/mm/cache.c: export symbol flush_icache_range() for module usingChen Gang2014-03-311-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Need export symbol flush_icache_range() to modules, just like another platforms have done, or can not pass compiling. The related error (with allmodconfig under avr32): ERROR: "flush_icache_range" [drivers/misc/lkdtm.ko] undefined! make[1]: *** [__modpost] Error 1 make: *** [modules] Error 2 Signed-off-by: Chen Gang <gang.chen.5i5j@gmail.com> Acked-by: Hans-Christian Egtvedt <egtvedt@samfundet.no>
| * | avr32: remove cpu_data macro to fix compilesWolfram Sang2014-03-312-7/+2
| |/ | | | | | | | | | | | | | | | | | | | | | | | | Having cpu_data as a parameterless macro can easily cause build failures because it can be a variable name like in linux/pm_domain.h [1]. So, remove the macro and convert its only user. Because this architecture cannot do SMP, remove the whole SMP block, too. Only compile tested due to no hardware. Signed-off-by: Wolfram Sang <wsa@the-dreams.de> Acked-by: Hans-Christian Egtvedt <egtvedt@samfundet.no> [1] https://lists.01.org/pipermail/kbuild-all/2014-February/003252.html
* | Merge branch 'core-locking-for-linus' of ↵Linus Torvalds2014-03-311-20/+21
|\ \ | |/ |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull core locking updates from Ingo Molnar: "The biggest change is the MCS spinlock generalization changes from Tim Chen, Peter Zijlstra, Jason Low et al. There's also lockdep fixes/enhancements from Oleg Nesterov, in particular a false negative fix related to lockdep_set_novalidate_class() usage" * 'core-locking-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (22 commits) locking/mutex: Fix debug checks locking/mutexes: Add extra reschedule point locking/mutexes: Introduce cancelable MCS lock for adaptive spinning locking/mutexes: Unlock the mutex without the wait_lock locking/mutexes: Modify the way optimistic spinners are queued locking/mutexes: Return false if task need_resched() in mutex_can_spin_on_owner() locking: Move mcs_spinlock.h into kernel/locking/ m68k: Skip futex_atomic_cmpxchg_inatomic() test futex: Allow architectures to skip futex_atomic_cmpxchg_inatomic() test Revert "sched/wait: Suppress Sparse 'variable shadowing' warning" lockdep: Change lockdep_set_novalidate_class() to use _and_name lockdep: Change mark_held_locks() to check hlock->check instead of lockdep_no_validate lockdep: Don't create the wrong dependency on hlock->check == 0 lockdep: Make held_lock->check and "int check" argument bool locking/mcs: Allow architecture specific asm files to be used for contended case locking/mcs: Order the header files in Kbuild of each architecture in alphabetical order sched/wait: Suppress Sparse 'variable shadowing' warning hung_task/Documentation: Fix hung_task_warnings description locking/mcs: Allow architectures to hook in to contended paths locking/mcs: Micro-optimize the MCS code, add extra comments ...
| * locking/mcs: Allow architecture specific asm files to be used for contended caseTim Chen2014-02-091-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch allows each architecture to add its specific assembly optimized arch_mcs_spin_lock_contended and arch_mcs_spinlock_uncontended for MCS lock and unlock functions. Signed-off-by: Tim Chen <tim.c.chen@linux.intel.com> Cc: Scott J Norton <scott.norton@hp.com> Cc: Raghavendra K T <raghavendra.kt@linux.vnet.ibm.com> Cc: AswinChandramouleeswaran <aswin@hp.com> Cc: George Spelvin <linux@horizon.com> Cc: Rik vanRiel <riel@redhat.com> Cc: Andrea Arcangeli <aarcange@redhat.com> Cc: MichelLespinasse <walken@google.com> Cc: Peter Hurley <peter@hurleysoftware.com> Cc: Andi Kleen <andi@firstfloor.org> Cc: Alex Shi <alex.shi@linaro.org> Cc: Dave Hansen <dave.hansen@intel.com> Cc: Tim Chen <tim.c.chen@linux.intel.com> Cc: Arnd Bergmann <arnd@arndb.de> Cc: "Figo.zhang" <figo1802@gmail.com> Cc: "Paul E.McKenney" <paulmck@linux.vnet.ibm.com> Cc: "H. Peter Anvin" <hpa@zytor.com> Cc: Davidlohr Bueso <davidlohr.bueso@hp.com> Cc: Waiman Long <waiman.long@hp.com> Cc: Ingo Molnar <mingo@elte.hu> Cc: Will Deacon <will.deacon@arm.com> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Matthew R Wilcox <matthew.r.wilcox@intel.com> Signed-off-by: Peter Zijlstra <peterz@infradead.org> Link: http://lkml.kernel.org/r/1390347382.3138.67.camel@schen9-DESK Signed-off-by: Ingo Molnar <mingo@kernel.org>
| * locking/mcs: Order the header files in Kbuild of each architecture in ↵Tim Chen2014-02-091-20/+20
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | alphabetical order We perform a clean up of the Kbuid files in each architecture. We order the files in each Kbuild in alphabetical order by running the below script. for i in arch/*/include/asm/Kbuild do cat $i | gawk '/^generic-y/ { i = 3; do { for (; i <= NF; i++) { if ($i == "\\") { getline; i = 1; continue; } if ($i != "") hdr[$i] = $i; } break; } while (1); next; } // { print $0; } END { n = asort(hdr); for (i = 1; i <= n; i++) print "generic-y += " hdr[i]; }' > ${i}.sorted; mv ${i}.sorted $i; done Signed-off-by: Tim Chen <tim.c.chen@linux.intel.com> Cc: Arnd Bergmann <arnd@arndb.de> Cc: Matthew R Wilcox <matthew.r.wilcox@intel.com> Cc: AswinChandramouleeswaran <aswin@hp.com> Cc: Dave Hansen <dave.hansen@intel.com> Cc: "Paul E.McKenney" <paulmck@linux.vnet.ibm.com> Cc: Scott J Norton <scott.norton@hp.com> Cc: Will Deacon <will.deacon@arm.com> Cc: "Figo.zhang" <figo1802@gmail.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Rik van Riel <riel@redhat.com> Cc: Waiman Long <waiman.long@hp.com> Cc: Peter Hurley <peter@hurleysoftware.com> Cc: Andrea Arcangeli <aarcange@redhat.com> Cc: Tim Chen <tim.c.chen@linux.intel.com> Cc: Alex Shi <alex.shi@linaro.org> Cc: Raghavendra K T <raghavendra.kt@linux.vnet.ibm.com> Cc: Andi Kleen <andi@firstfloor.org> Cc: George Spelvin <linux@horizon.com> Cc: MichelLespinasse <walken@google.com> Cc: Ingo Molnar <mingo@elte.hu> Cc: "H. Peter Anvin" <hpa@zytor.com> Cc: Davidlohr Bueso <davidlohr.bueso@hp.com> Cc: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Peter Zijlstra <peterz@infradead.org> [ Fixed build bug. ] Signed-off-by: Ingo Molnar <mingo@kernel.org>
* | avr32: add generic vga.h to KbuildChen Gang2014-02-171-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | Need add generic "vga.h", or can not pass building for allmodconfig, the related error: CC [M] drivers/gpu/drm/drm_irq.o In file included from include/linux/vgaarb.h:34, from drivers/gpu/drm/drm_irq.c:42: include/video/vga.h:22:21: error: asm/vga.h: No such file or directory Signed-off-by: Chen Gang <gang.chen.5i5j@gmail.com> Acked-by: Hans-Christian Egtvedt <hegtvedt@cisco.com>
* | avr32: add generic ioremap_wc() definition in io.hChen Gang2014-02-171-0/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | Need generic ioremap_wc(), or can not pass compiling with allmodconfig, the related error: CC [M] drivers/gpu/drm/drm_bufs.o drivers/gpu/drm/drm_bufs.c: In function 'drm_addmap_core': drivers/gpu/drm/drm_bufs.c:217: error: implicit declaration of function 'ioremap_wc' drivers/gpu/drm/drm_bufs.c:218: warning: assignment makes pointer from integer without a cast Signed-off-by: Chen Gang <gang.chen.5i5j@gmail.com> Acked-by: Hans-Christian Egtvedt <hegtvedt@cisco.com>
* | avr32: Makefile: add '-D__linux__' flag for gcc-4.4.7 useChen Gang2014-02-171-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | For avr32 cross compiler, do not define '__linux__' internally, so it will cause issue with allmodconfig. The related error: CC [M] fs/coda/psdev.o In file included from include/linux/coda.h:64, from fs/coda/psdev.c:45: include/uapi/linux/coda.h:221: error: expected specifier-qualifier-list before 'u_quad_t' The related toolchain version (which only download, not re-compile): [root@gchen linux-next]# /upstream/toolchain/download/avr32-gnu-toolchain-linux_x86/bin/avr32-gcc -v Using built-in specs. Target: avr32 Configured with: /data2/home/toolsbuild/jenkins-knuth/workspace/avr32-gnu-toolchain/src/gcc/configure --target=avr32 --host=i686-pc-linux-gnu --build=x86_64-pc-linux-gnu --prefix=/home/toolsbuild/jenkins-knuth/workspace/avr32-gnu-toolchain/avr32-gnu-toolchain-linux_x86 --enable-languages=c,c++ --disable-nls --disable-libssp --disable-libstdcxx-pch --with-dwarf2 --enable-version-specific-runtime-libs --disable-shared --enable-doc --with-mpfr-lib=/home/toolsbuild/jenkins-knuth/workspace/avr32-gnu-toolchain/avr32-gnu-toolchain-linux_x86/lib --with-mpfr-include=/home/toolsbuild/jenkins-knuth/workspace/avr32-gnu-toolchain/avr32-gnu-toolchain-linux_x86/include --with-gmp=/home/toolsbuild/jenkins-knuth/workspace/avr32-gnu-toolchain/avr32-gnu-toolchain-linux_x86 --with-mpc=/home/toolsbuild/jenkins-knuth/workspace/avr32-gnu-toolchain/avr32-gnu-toolchain-linux_x86 --enable-__cxa_atexit --disable-shared --with-newlib --with-pkgversion=AVR_32_bit_GNU_Toolchain_3.4.2_435 --with-bugurl=http://www .atmel.com/avr Thread model: single gcc version 4.4.7 (AVR_32_bit_GNU_Toolchain_3.4.2_435) Signed-off-by: Chen Gang <gang.chen.5i5j@gmail.com> Acked-by: Hans-Christian Egtvedt <hegtvedt@cisco.com> Cc: stable@vger.kernel.org
* | avr32: fix missing module.h causing build failure in mimc200/fram.cPaul Gortmaker2014-02-171-0/+1
|/ | | | | | | | | | | | | | | | | Causing this: In file included from arch/avr32/boards/mimc200/fram.c:13: include/linux/miscdevice.h:51: error: field 'list' has incomplete type include/linux/miscdevice.h:55: error: expected specifier-qualifier-list before 'mode_t' arch/avr32/boards/mimc200/fram.c:42: error: 'THIS_MODULE' undeclared here (not in a function) Reported-by: Fengguang Wu <fengguang.wu@intel.com> Cc: Haavard Skinnemoen <hskinnemoen@gmail.com> Cc: Hans-Christian Egtvedt <egtvedt@samfundet.no> Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com> Signed-off-by: Sergei Trofimovich <slyfox@gentoo.org> Acked-by: Hans-Christian Egtvedt <egtvedt@samfundet.no> Cc: stable@vger.kernel.org
* Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-nextLinus Torvalds2014-01-252-0/+3
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Pull networking updates from David Miller: 1) BPF debugger and asm tool by Daniel Borkmann. 2) Speed up create/bind in AF_PACKET, also from Daniel Borkmann. 3) Correct reciprocal_divide and update users, from Hannes Frederic Sowa and Daniel Borkmann. 4) Currently we only have a "set" operation for the hw timestamp socket ioctl, add a "get" operation to match. From Ben Hutchings. 5) Add better trace events for debugging driver datapath problems, also from Ben Hutchings. 6) Implement auto corking in TCP, from Eric Dumazet. Basically, if we have a small send and a previous packet is already in the qdisc or device queue, defer until TX completion or we get more data. 7) Allow userspace to manage ipv6 temporary addresses, from Jiri Pirko. 8) Add a qdisc bypass option for AF_PACKET sockets, from Daniel Borkmann. 9) Share IP header compression code between Bluetooth and IEEE802154 layers, from Jukka Rissanen. 10) Fix ipv6 router reachability probing, from Jiri Benc. 11) Allow packets to be captured on macvtap devices, from Vlad Yasevich. 12) Support tunneling in GRO layer, from Jerry Chu. 13) Allow bonding to be configured fully using netlink, from Scott Feldman. 14) Allow AF_PACKET users to obtain the VLAN TPID, just like they can already get the TCI. From Atzm Watanabe. 15) New "Heavy Hitter" qdisc, from Terry Lam. 16) Significantly improve the IPSEC support in pktgen, from Fan Du. 17) Allow ipv4 tunnels to cache routes, just like sockets. From Tom Herbert. 18) Add Proportional Integral Enhanced packet scheduler, from Vijay Subramanian. 19) Allow openvswitch to mmap'd netlink, from Thomas Graf. 20) Key TCP metrics blobs also by source address, not just destination address. From Christoph Paasch. 21) Support 10G in generic phylib. From Andy Fleming. 22) Try to short-circuit GRO flow compares using device provided RX hash, if provided. From Tom Herbert. The wireless and netfilter folks have been busy little bees too. * git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next: (2064 commits) net/cxgb4: Fix referencing freed adapter ipv6: reallocate addrconf router for ipv6 address when lo device up fib_frontend: fix possible NULL pointer dereference rtnetlink: remove IFLA_BOND_SLAVE definition rtnetlink: remove check for fill_slave_info in rtnl_have_link_slave_info qlcnic: update version to 5.3.55 qlcnic: Enhance logic to calculate msix vectors. qlcnic: Refactor interrupt coalescing code for all adapters. qlcnic: Update poll controller code path qlcnic: Interrupt code cleanup qlcnic: Enhance Tx timeout debugging. qlcnic: Use bool for rx_mac_learn. bonding: fix u64 division rtnetlink: add missing IFLA_BOND_AD_INFO_UNSPEC sfc: Use the correct maximum TX DMA ring size for SFC9100 Add Shradha Shah as the sfc driver maintainer. net/vxlan: Share RX skb de-marking and checksum checks with ovs tulip: cleanup by using ARRAY_SIZE() ip_tunnel: clear IPCB in ip_tunnel_xmit() in case dst_link_failure() is called net/cxgb4: Don't retrieve stats during recovery ...
| * net: introduce SO_BPF_EXTENSIONSMichal Sekletar2014-01-181-0/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | For user space packet capturing libraries such as libpcap, there's currently only one way to check which BPF extensions are supported by the kernel, that is, commit aa1113d9f85d ("net: filter: return -EINVAL if BPF_S_ANC* operation is not supported"). For querying all extensions at once this might be rather inconvenient. Therefore, this patch introduces a new option which can be used as an argument for getsockopt(), and allows one to obtain information about which BPF extensions are supported by the current kernel. As David Miller suggests, we do not need to define any bits right now and status quo can just return 0 in order to state that this versions supports SKF_AD_PROTOCOL up to SKF_AD_PAY_OFFSET. Later additions to BPF extensions need to add their bits to the bpf_tell_extensions() function, as documented in the comment. Signed-off-by: Michal Sekletar <msekleta@redhat.com> Cc: David Miller <davem@davemloft.net> Reviewed-by: Daniel Borkmann <dborkman@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
| * Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/netDavid S. Miller2013-12-1818-18/+5
| |\ | | | | | | | | | | | | | | | | | | | | | | | | | | | Conflicts: drivers/net/ethernet/intel/i40e/i40e_main.c drivers/net/macvtap.c Both minor merge hassles, simple overlapping changes. Signed-off-by: David S. Miller <davem@davemloft.net>
| * | lib: Add missing arch generic-y entries for asm-generic/hash.hDavid S. Miller2013-12-171-0/+1
| | | | | | | | | | | | | | | Reported-by: Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: David S. Miller <davem@davemloft.net>
* | | arch: Clean up asm/barrier.h implementations using asm-generic/barrier.hPeter Zijlstra2014-01-121-12/+5
| |/ |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | We're going to be adding a few new barrier primitives, and in order to avoid endless duplication make more agressive use of asm-generic/barrier.h. Change the asm-generic/barrier.h such that it allows partial barrier definitions and fills out the rest with defaults. There are a few architectures (m32r, m68k) that could probably do away with their barrier.h file entirely but are kept for now due to their unconventional nop() implementation. Suggested-by: Geert Uytterhoeven <geert@linux-m68k.org> Reviewed-by: "Paul E. McKenney" <paulmck@linux.vnet.ibm.com> Reviewed-by: Mathieu Desnoyers <mathieu.desnoyers@polymtl.ca> Signed-off-by: Peter Zijlstra <peterz@infradead.org> Cc: Michael Ellerman <michael@ellerman.id.au> Cc: Michael Neuling <mikey@neuling.org> Cc: Russell King <linux@arm.linux.org.uk> Cc: Heiko Carstens <heiko.carstens@de.ibm.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Martin Schwidefsky <schwidefsky@de.ibm.com> Cc: Victor Kaplansky <VICTORK@il.ibm.com> Cc: Tony Luck <tony.luck@intel.com> Cc: Oleg Nesterov <oleg@redhat.com> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Frederic Weisbecker <fweisbec@gmail.com> Link: http://lkml.kernel.org/r/20131213150640.846368594@infradead.org Signed-off-by: Ingo Molnar <mingo@kernel.org>
* | avr32: favr-32: clk_round_rate() can return a zero upon errorPaul Walmsley2013-12-101-1/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Treat both negative and zero return values from clk_round_rate() as errors. This is needed since subsequent patches will convert clk_round_rate()'s return value to be an unsigned type, rather than a signed type, since some clock sources can generate rates higher than (2^31)-1 Hz. Eventually, when calling clk_round_rate(), only a return value of zero will be considered a error. All other values will be considered valid rates. The comparison against values less than 0 is kept to preserve the correct behavior in the meantime. Signed-off-by: Paul Walmsley <paul@pwsan.com> Cc: Nicolas Ferre <nicolas.ferre@atmel.com> Cc: Håvard Skinnemoen <hskinnemoen@gmail.com> Cc: Hans-Christian Egtvedt <egtvedt@samfundet.no> Cc: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com> Acked-by: Hans-Christian Egtvedt <egtvedt@samfundet.no>
* | avr32: remove deprecated IRQF_DISABLEDMichael Opdenacker2013-12-101-1/+1
| | | | | | | | | | | | | | | | | | This patch proposes to remove the use of the IRQF_DISABLED flag It's a NOOP since 2.6.35 and it will be removed one day. Signed-off-by: Michael Opdenacker <michael.opdenacker@free-electrons.com> Acked-by: Hans-Christian Egtvedt <egtvedt@samfundet.no>
* | avr32: pm: Fix section mismatchMatthias Brugger2013-12-101-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | The power management has a section mismatch which leads to the following warning during compilation: WARNING: arch/avr32/mach-at32ap/built-in.o(.text+0x16d4): Section mismatch in reference from the function avr32_pm_offset() to the function .init.text:pm_exception() The function avr32_pm_offset() references the function __init pm_exception(). Signed-off-by: Matthias Brugger <matthias.bgg@gmail.com> Acked-by: Hans-Christian Egtvedt <hegtvedt@cisco.com>
* | avr32: Kill CONFIG_MTD_PARTITIONSEunbong Song2013-12-1015-15/+0
|/ | | | | | | | | This patch removes CONFIG_MTD_PARTITIONS in config files for avr32. Because CONFIG_MTD_PARTITIONS was removed by commit 6a8a98b22b10f1560d5f90aded4a54234b9b2724. Signed-off-by: Eunbong Song <eunb.song@samsung.com> Acked-by: Hans-Christian Egtvedt <hegtvedt@cisco.com>
* avr32: uapi: be sure of "_UAPI" prefix for all guard macrosChen Gang2013-11-2031-102/+56
| | | | | | | | | | | | | | | For all uapi headers, need use "_UAPI" prefix for its guard macro (which will be stripped by "scripts/headers_installer.sh"). Also remove redundant files (bitsperlong.h, errno.h, fcntl.h, ioctl.h, ioctls.h, ipcbuf.h, kvm_para.h, mman.h, poll.h, resource.h, siginfo.h, statfs.h, and unistd.h) which are already in Kbuild. Also be sure that all "#endif" only have one empty line above, and each file has guard macro. Signed-off-by: Chen Gang <gang.chen@asianux.com> Signed-off-by: Hans-Christian Egtvedt <hegtvedt@cisco.com>
* avr32: add kprobe_ctlblk memory structEirik Aanonsen2013-11-201-0/+14
| | | | | | | This re-enables kprobes on AVR32 architecture. Signed-off-by: Eirik Aanonsen <eaa@wprmedical.com> Signed-off-by: Hans-Christian Egtvedt <egtvedt@samfundet.no>
* avr32: fix out-of-range jump in large kernelsAndreas Bießmann2013-11-202-2/+6
| | | | | | | | | | | | | | | | | | | | | | | | This patch fixes following error (for big kernels): ---8<--- arch/avr32/boot/u-boot/head.o: In function `no_tag_table': (.init.text+0x44): relocation truncated to fit: R_AVR32_22H_PCREL against symbol `panic' defined in .text.unlikely section in kernel/built-in.o arch/avr32/kernel/built-in.o: In function `bad_return': (.ex.text+0x236): relocation truncated to fit: R_AVR32_22H_PCREL against symbol `panic' defined in .text.unlikely section in kernel/built-in.o --->8--- It comes up when the kernel increases and 'panic()' is too far away to fit in the +/- 2MiB range. Which in turn issues from the 21-bit displacement in 'br{cond4}' mnemonic which is one of the two ways to do jumps (rjmp has just 10-bit displacement and therefore a way smaller range). This fact was stated before in 8d29b7b9f81d6b83d869ff054e6c189d6da73f1f. One solution to solve this is to add a local storage for the symbol address and just load the $pc with that value. Signed-off-by: Andreas Bießmann <andreas@biessmann.de> Acked-by: Hans-Christian Egtvedt <egtvedt@samfundet.no> Cc: Haavard Skinnemoen <hskinnemoen@gmail.com> Cc: stable@vger.kernel.org
* avr32: setup crt for early panic()Andreas Bießmann2013-11-202-25/+25
| | | | | | | | | | | | | Before the CRT was (fully) set up in kernel_entry (bss cleared before in _start, but also not before jump to panic() in no_tag_table case). This patch fixes this up to have a fully working CRT when branching to panic() in no_tag_table. Signed-off-by: Andreas Bießmann <andreas@biessmann.de> Acked-by: Hans-Christian Egtvedt <egtvedt@samfundet.no> Cc: Haavard Skinnemoen <hskinnemoen@gmail.com> Cc: stable@vger.kernel.org
* Merge branch 'irq-urgent-for-linus' of ↵Linus Torvalds2013-11-191-2/+0
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull irq cleanups from Ingo Molnar: "This is a multi-arch cleanup series from Thomas Gleixner, which we kept to near the end of the merge window, to not interfere with architecture updates. This series (motivated by the -rt kernel) unifies more aspects of IRQ handling and generalizes PREEMPT_ACTIVE" * 'irq-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: preempt: Make PREEMPT_ACTIVE generic sparc: Use preempt_schedule_irq ia64: Use preempt_schedule_irq m32r: Use preempt_schedule_irq hardirq: Make hardirq bits generic m68k: Simplify low level interrupt handling code genirq: Prevent spurious detection for unconditionally polled interrupts
| * preempt: Make PREEMPT_ACTIVE genericThomas Gleixner2013-11-131-2/+0
| | | | | | | | | | | | | | | | No point in having this bit defined by architecture. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Acked-by: Peter Zijlstra <peterz@infradead.org> Link: http://lkml.kernel.org/r/20130917183629.090698799@linutronix.de
* | avr32: handle pgtable_page_ctor() failKirill A. Shutemov2013-11-151-1/+4
| | | | | | | | | | | | | | | | Signed-off-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com> Cc: Haavard Skinnemoen <hskinnemoen@gmail.com> Acked-by: Hans-Christian Egtvedt <egtvedt@samfundet.no> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | Merge tag 'fbdev-3.13' of ↵Linus Torvalds2013-11-1410-19/+19
|\ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/tomba/linux Pull fbdev changes from Tomi Valkeinen: "Nothing particularly stands out in this pull request. The biggest part of the changes are cleanups. Maybe one fix to mention is the "fb: reorder the lock sequence to fix potential dead lock" which hopefully fixes the fb locking issues reported by multiple persons. There are also a few commits that have changes to arch/arm/mach-at91 and arch/avr32, which have been acked by the maintainers" * tag 'fbdev-3.13' of git://git.kernel.org/pub/scm/linux/kernel/git/tomba/linux: (143 commits) fb: reorder the lock sequence to fix potential dead lock fbdev: shmobile-lcdcfb: Convert to clk_prepare/unprepare fbdev: shmobile-hdmi: Convert to clk_prepare/unprepare omapdss: Add new panel driver for Topolly td028ttec1 LCD. video: exynos_mipi_dsi: Unlock the mutex before returning video: da8xx-fb: remove unwanted define video: Remove unnecessary semicolons simplefb: use write-combined remapping simplefb: fix unmapping fb during destruction OMAPDSS: connector-dvi: fix releasing i2c_adapter OMAPDSS: DSI: fix perf measuring ifdefs framebuffer: Use fb_<level> framebuffer: Add fb_<level> convenience logging macros efifb: prevent null-deref when iterating dmi_list fbdev: fix error return code in metronomefb_probe() video: xilinxfb: Fix for "Use standard variable name convention" OMAPDSS: Fix de_level in videomode_to_omap_video_timings() video: xilinxfb: Simplify error path video: xilinxfb: Use devm_kzalloc instead of kzalloc video: xilinxfb: Use standard variable name convention ...
| * | video: atmel_lcdfb: pass the pdata as paramsJean-Christophe PLAGNIOL-VILLARD2013-09-271-1/+1
| | | | | | | | | | | | | | | | | | | | | so we can use have list gpio as example (probe via DT) Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com> Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
| * | video: atmel_lcdfb: fix platform data structJean-Christophe PLAGNIOL-VILLARD2013-09-2710-18/+18
| | | | | | | | | | | | | | | | | | | | | | | | Today we mix pdata and drivers data in the struct atmel_lcdfb_info Fix it and introduce a new struct atmel_lcdfb_pdata for platform data only Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com> Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
* | | Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-nextLinus Torvalds2013-11-131-0/+2
|\ \ \ | |_|/ |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Pull networking updates from David Miller: 1) The addition of nftables. No longer will we need protocol aware firewall filtering modules, it can all live in userspace. At the core of nftables is a, for lack of a better term, virtual machine that executes byte codes to inspect packet or metadata (arriving interface index, etc.) and make verdict decisions. Besides support for loading packet contents and comparing them, the interpreter supports lookups in various datastructures as fundamental operations. For example sets are supports, and therefore one could create a set of whitelist IP address entries which have ACCEPT verdicts attached to them, and use the appropriate byte codes to do such lookups. Since the interpreted code is composed in userspace, userspace can do things like optimize things before giving it to the kernel. Another major improvement is the capability of atomically updating portions of the ruleset. In the existing netfilter implementation, one has to update the entire rule set in order to make a change and this is very expensive. Userspace tools exist to create nftables rules using existing netfilter rule sets, but both kernel implementations will need to co-exist for quite some time as we transition from the old to the new stuff. Kudos to Patrick McHardy, Pablo Neira Ayuso, and others who have worked so hard on this. 2) Daniel Borkmann and Hannes Frederic Sowa made several improvements to our pseudo-random number generator, mostly used for things like UDP port randomization and netfitler, amongst other things. In particular the taus88 generater is updated to taus113, and test cases are added. 3) Support 64-bit rates in HTB and TBF schedulers, from Eric Dumazet and Yang Yingliang. 4) Add support for new 577xx tigon3 chips to tg3 driver, from Nithin Sujir. 5) Fix two fatal flaws in TCP dynamic right sizing, from Eric Dumazet, Neal Cardwell, and Yuchung Cheng. 6) Allow IP_TOS and IP_TTL to be specified in sendmsg() ancillary control message data, much like other socket option attributes. From Francesco Fusco. 7) Allow applications to specify a cap on the rate computed automatically by the kernel for pacing flows, via a new SO_MAX_PACING_RATE socket option. From Eric Dumazet. 8) Make the initial autotuned send buffer sizing in TCP more closely reflect actual needs, from Eric Dumazet. 9) Currently early socket demux only happens for TCP sockets, but we can do it for connected UDP sockets too. Implementation from Shawn Bohrer. 10) Refactor inet socket demux with the goal of improving hash demux performance for listening sockets. With the main goals being able to use RCU lookups on even request sockets, and eliminating the listening lock contention. From Eric Dumazet. 11) The bonding layer has many demuxes in it's fast path, and an RCU conversion was started back in 3.11, several changes here extend the RCU usage to even more locations. From Ding Tianhong and Wang Yufen, based upon suggestions by Nikolay Aleksandrov and Veaceslav Falico. 12) Allow stackability of segmentation offloads to, in particular, allow segmentation offloading over tunnels. From Eric Dumazet. 13) Significantly improve the handling of secret keys we input into the various hash functions in the inet hashtables, TCP fast open, as well as syncookies. From Hannes Frederic Sowa. The key fundamental operation is "net_get_random_once()" which uses static keys. Hannes even extended this to ipv4/ipv6 fragmentation handling and our generic flow dissector. 14) The generic driver layer takes care now to set the driver data to NULL on device removal, so it's no longer necessary for drivers to explicitly set it to NULL any more. Many drivers have been cleaned up in this way, from Jingoo Han. 15) Add a BPF based packet scheduler classifier, from Daniel Borkmann. 16) Improve CRC32 interfaces and generic SKB checksum iterators so that SCTP's checksumming can more cleanly be handled. Also from Daniel Borkmann. 17) Add a new PMTU discovery mode, IP_PMTUDISC_INTERFACE, which forces using the interface MTU value. This helps avoid PMTU attacks, particularly on DNS servers. From Hannes Frederic Sowa. 18) Use generic XPS for transmit queue steering rather than internal (re-)implementation in virtio-net. From Jason Wang. * git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next: (1622 commits) random32: add test cases for taus113 implementation random32: upgrade taus88 generator to taus113 from errata paper random32: move rnd_state to linux/random.h random32: add prandom_reseed_late() and call when nonblocking pool becomes initialized random32: add periodic reseeding random32: fix off-by-one in seeding requirement PHY: Add RTL8201CP phy_driver to realtek xtsonic: add missing platform_set_drvdata() in xtsonic_probe() macmace: add missing platform_set_drvdata() in mace_probe() ethernet/arc/arc_emac: add missing platform_set_drvdata() in arc_emac_probe() ipv6: protect for_each_sk_fl_rcu in mem_check with rcu_read_lock_bh vlan: Implement vlan_dev_get_egress_qos_mask as an inline. ixgbe: add warning when max_vfs is out of range. igb: Update link modes display in ethtool netfilter: push reasm skb through instead of original frag skbs ip6_output: fragment outgoing reassembled skb properly MAINTAINERS: mv643xx_eth: take over maintainership from Lennart net_sched: tbf: support of 64bit rates ixgbe: deleting dfwd stations out of order can cause null ptr deref ixgbe: fix build err, num_rx_queues is only available with CONFIG_RPS ...
| * | Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/netDavid S. Miller2013-10-0117-73/+24
| |\ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Conflicts: drivers/net/ethernet/emulex/benet/be.h drivers/net/usb/qmi_wwan.c drivers/net/wireless/brcm80211/brcmfmac/dhd_bus.h include/net/netfilter/nf_conntrack_synproxy.h include/net/secure_seq.h The conflicts are of two varieties: 1) Conflicts with Joe Perches's 'extern' removal from header file function declarations. Usually it's an argument signature change or a function being added/removed. The resolutions are trivial. 2) Some overlapping changes in qmi_wwan.c and be.h, one commit adds a new value, another changes an existing value. That sort of thing. Signed-off-by: David S. Miller <davem@davemloft.net>
| * | | net: introduce SO_MAX_PACING_RATEEric Dumazet2013-09-281-0/+2
| | |/ | |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | As mentioned in commit afe4fd062416b ("pkt_sched: fq: Fair Queue packet scheduler"), this patch adds a new socket option. SO_MAX_PACING_RATE offers the application the ability to cap the rate computed by transport layer. Value is in bytes per second. u32 val = 1000000; setsockopt(sockfd, SOL_SOCKET, SO_MAX_PACING_RATE, &val, sizeof(val)); To be effectively paced, a flow must use FQ packet scheduler. Note that a packet scheduler takes into account the headers for its computations. The effective payload rate depends on MSS and retransmits if any. I chose to make this pacing rate a SOL_SOCKET option instead of a TCP one because this can be used by other protocols. Signed-off-by: Eric Dumazet <edumazet@google.com> Cc: Steinar H. Gunderson <sesse@google.com> Cc: Michael Kerrisk <mtk.manpages@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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