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2013-06-26video: udlfb: Make local symbol staticSachin Kamat
'dlfb_handle_damage' is used only in this file. Make it static. Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org> Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
2013-06-26video: udlfb: Use NULL instead of 0Sachin Kamat
Pointer variables should be initialized with NULL instead of 0. Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org> Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
2013-06-26video: smscufx: Use NULL instead of 0Sachin Kamat
'info' is a pointer. Use NULL instead of 0. Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org> Acked-by: Steve Glendinning <steve.glendinning@shawell.net> Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
2013-06-26video: remove unnecessary platform_set_drvdata()Jingoo Han
The driver core clears the driver data to NULL after device_release or on probe failure, since commit 0998d0631001288a5974afc0b2a5f568bcdecb4d (device-core: Ensure drvdata = NULL when no driver is bound). Thus, it is not needed to manually clear the device driver data to NULL. Signed-off-by: Jingoo Han <jg1.han@samsung.com> Cc: Sylwester Nawrocki <sylvester.nawrocki@gmail.com> Acked-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> Acked-by: Shawn Guo <shawn.guo@linaro.org> Reviewed-by: H Hartley Sweeten <hsweeten@visionengravers.com> Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
2013-06-26video: mxsfb: remove redundant dev_err call in mxsfb_probe()Wei Yongjun
There is a error message within devm_ioremap_resource already, so remove the dev_err call to avoid redundant error message. Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn> Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
2013-06-26x86/platform: Make X86_GOLDFISH depend on X86_EXTENDED_PLATFORMBen Hutchings
All non-PC platforms are supposed to be dependent on this option. Signed-off-by: Ben Hutchings <ben@decadent.org.uk> Cc: Jun Nakajima <jnakajim@gmail.com> Link: http://lkml.kernel.org/n/tip-Bcihhqhstm67fchjnkxoiJbu@git.kernel.org Signed-off-by: Ingo Molnar <mingo@kernel.org>
2013-06-26video: xilinxfb: Use driver for Xilinx ARM ZynqMichal Simek
Enable this driver for all Xilinx platforms. Signed-off-by: Michal Simek <michal.simek@xilinx.com> Acked-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
2013-06-26video: xilinxfb: Add support for little endian accessesMichal Simek
Dynamically detect endianess on IP and use ioread/iowrite functions instead of powerpc and microblaze specific out_be32. Signed-off-by: Michal Simek <michal.simek@xilinx.com> Acked-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
2013-06-26video: xilinxfb: Group bus initializationMichal Simek
Move of_address_to_resource() to xilinxfb_assign() which simplify driver probing. Signed-off-by: Michal Simek <michal.simek@xilinx.com> Acked-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
2013-06-26video: xilinxfb: Use drvdata->regs_phys instead of physaddrMichal Simek
physaddr will be remove in the next patch. Signed-off-by: Michal Simek <michal.simek@xilinx.com> Acked-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
2013-06-26video: xilinxfb: Rename PLB_ACCESS_FLAG to BUS_ACCESS_FLAGMichal Simek
Using only PLB name is wrong for a long time because the same access functions are also used for AXI. s/PLB/BUS/g Signed-off-by: Michal Simek <michal.simek@xilinx.com> Acked-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
2013-06-26video: xilinxfb: Do not name out_be32 in function nameMichal Simek
out_be32 IO function is not supported by ARM. It is only available for PPC and Microblaze. Because this driver can be used on ARM let's remove out_be32 from function name. Signed-off-by: Michal Simek <michal.simek@xilinx.com> Acked-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
2013-06-26video: xilinxfb: Fix OF probing on little-endian systemsMichal Simek
DTB is always big-endian that's why it is necessary to properly convert value (*p). It is automatically done in of_property_read_u32(). Signed-off-by: Michal Simek <michal.simek@xilinx.com> Acked-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
2013-06-26locking-selftests: Handle unexpected failures more strictlyMaarten Lankhorst
When CONFIG_PROVE_LOCKING is not enabled, more tests are expected to pass unexpectedly, but there no tests that should start to fail that pass with CONFIG_PROVE_LOCKING enabled. Signed-off-by: Maarten Lankhorst <maarten.lankhorst@canonical.com> Acked-by: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: dri-devel@lists.freedesktop.org Cc: linaro-mm-sig@lists.linaro.org Cc: rostedt@goodmis.org Cc: daniel@ffwll.ch Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: Thomas Gleixner <tglx@linutronix.de> Link: http://lkml.kernel.org/r/20130620113151.4001.77963.stgit@patser Signed-off-by: Ingo Molnar <mingo@kernel.org>
2013-06-26mutex: Add more w/w tests to test EDEADLK path handlingMaarten Lankhorst
Signed-off-by: Maarten Lankhorst <maarten.lankhorst@canonical.com> Acked-by: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: dri-devel@lists.freedesktop.org Cc: linaro-mm-sig@lists.linaro.org Cc: rostedt@goodmis.org Cc: daniel@ffwll.ch Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: Thomas Gleixner <tglx@linutronix.de> Link: http://lkml.kernel.org/r/20130620113141.4001.54331.stgit@patser Signed-off-by: Ingo Molnar <mingo@kernel.org>
2013-06-26mutex: Add more tests to lib/locking-selftest.cMaarten Lankhorst
None of the ww_mutex codepaths should be taken in the 'normal' mutex calls. The easiest way to verify this is by using the normal mutex calls, and making sure o.ctx is unmodified. Signed-off-by: Maarten Lankhorst <maarten.lankhorst@canonical.com> Acked-by: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: dri-devel@lists.freedesktop.org Cc: linaro-mm-sig@lists.linaro.org Cc: robclark@gmail.com Cc: rostedt@goodmis.org Cc: daniel@ffwll.ch Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: Thomas Gleixner <tglx@linutronix.de> Link: http://lkml.kernel.org/r/20130620113130.4001.45423.stgit@patser Signed-off-by: Ingo Molnar <mingo@kernel.org>
2013-06-26mutex: Add w/w tests to lib/locking-selftest.cMaarten Lankhorst
This stresses the lockdep code in some ways specifically useful to ww_mutexes. It adds checks for most of the common locking errors. Signed-off-by: Maarten Lankhorst <maarten.lankhorst@canonical.com> Acked-by: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: dri-devel@lists.freedesktop.org Cc: linaro-mm-sig@lists.linaro.org Cc: robclark@gmail.com Cc: rostedt@goodmis.org Cc: daniel@ffwll.ch Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: Thomas Gleixner <tglx@linutronix.de> Link: http://lkml.kernel.org/r/20130620113124.4001.23186.stgit@patser Signed-off-by: Ingo Molnar <mingo@kernel.org>
2013-06-26mutex: Add w/w mutex slowpath debuggingDaniel Vetter
Injects EDEADLK conditions at pseudo-random interval, with exponential backoff up to UINT_MAX (to ensure that every lock operation still completes in a reasonable time). This way we can test the wound slowpath even for ww mutex users where contention is never expected, and the ww deadlock avoidance algorithm is only needed for correctness against malicious userspace. An example would be protecting kernel modesetting properties, which thanks to single-threaded X isn't really expected to contend, ever. I've looked into using the CONFIG_FAULT_INJECTION infrastructure, but decided against it for two reasons: - EDEADLK handling is mandatory for ww mutex users and should never affect the outcome of a syscall. This is in contrast to -ENOMEM injection. So fine configurability isn't required. - The fault injection framework only allows to set a simple probability for failure. Now the probability that a ww mutex acquire stage with N locks will never complete (due to too many injected EDEADLK backoffs) is zero. But the expected number of ww_mutex_lock operations for the completely uncontended case would be O(exp(N)). The per-acuiqire ctx exponential backoff solution choosen here only results in O(log N) overhead due to injection and so O(log N * N) lock operations. This way we can fail with high probability (and so have good test coverage even for fancy backoff and lock acquisition paths) without running into patalogical cases. Note that EDEADLK will only ever be injected when we managed to acquire the lock. This prevents any behaviour changes for users which rely on the EALREADY semantics. Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch> Signed-off-by: Maarten Lankhorst <maarten.lankhorst@canonical.com> Acked-by: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: dri-devel@lists.freedesktop.org Cc: linaro-mm-sig@lists.linaro.org Cc: rostedt@goodmis.org Cc: daniel@ffwll.ch Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: Thomas Gleixner <tglx@linutronix.de> Link: http://lkml.kernel.org/r/20130620113117.4001.21681.stgit@patser Signed-off-by: Ingo Molnar <mingo@kernel.org>
2013-06-26mutex: Add support for wound/wait style locksMaarten Lankhorst
Wound/wait mutexes are used when other multiple lock acquisitions of a similar type can be done in an arbitrary order. The deadlock handling used here is called wait/wound in the RDBMS literature: The older tasks waits until it can acquire the contended lock. The younger tasks needs to back off and drop all the locks it is currently holding, i.e. the younger task is wounded. For full documentation please read Documentation/ww-mutex-design.txt. References: https://lwn.net/Articles/548909/ Signed-off-by: Maarten Lankhorst <maarten.lankhorst@canonical.com> Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch> Acked-by: Rob Clark <robdclark@gmail.com> Acked-by: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: dri-devel@lists.freedesktop.org Cc: linaro-mm-sig@lists.linaro.org Cc: rostedt@goodmis.org Cc: daniel@ffwll.ch Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: Thomas Gleixner <tglx@linutronix.de> Link: http://lkml.kernel.org/r/51C8038C.9000106@canonical.com Signed-off-by: Ingo Molnar <mingo@kernel.org>
2013-06-26arch: Make __mutex_fastpath_lock_retval return whether fastpath succeeded or notMaarten Lankhorst
This will allow me to call functions that have multiple arguments if fastpath fails. This is required to support ticket mutexes, because they need to be able to pass an extra argument to the fail function. Originally I duplicated the functions, by adding __mutex_fastpath_lock_retval_arg. This ended up being just a duplication of the existing function, so a way to test if fastpath was called ended up being better. This also cleaned up the reservation mutex patch some by being able to call an atomic_set instead of atomic_xchg, and making it easier to detect if the wrong unlock function was previously used. Signed-off-by: Maarten Lankhorst <maarten.lankhorst@canonical.com> Acked-by: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: dri-devel@lists.freedesktop.org Cc: linaro-mm-sig@lists.linaro.org Cc: robclark@gmail.com Cc: rostedt@goodmis.org Cc: daniel@ffwll.ch Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: Thomas Gleixner <tglx@linutronix.de> Link: http://lkml.kernel.org/r/20130620113105.4001.83929.stgit@patser Signed-off-by: Ingo Molnar <mingo@kernel.org>
2013-06-26ARC: Setup Vector Table Base in early bootVineet Gupta
Otherwise early boot exceptions such as instructions errors due to configuration mismatch between kernel and hardware go off to la-la land, as opposed to hitting the handler and panic()'ing properly. Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
2013-06-26ARC: Remove explicit passing around of ECRVineet Gupta
With ECR now part of pt_regs * No need to propagate from lowest asm handlers as arg * No need to save it in tsk->thread.cause_code * Avoid bit chopping to access the bit-fields More code consolidation, cleanup Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
2013-06-26perf/x86/intel: Support full width countingAndi Kleen
Recent Intel CPUs like Haswell and IvyBridge have a new alternative MSR range for perfctrs that allows writing the full counter width. Enable this range if the hardware reports it using a new capability bit. Currently the perf code queries CPUID to get the counter width, and sign extends the counter values as needed. The traditional PERFCTR MSRs always limit to 32bit, even though the counter internally is larger (usually 48 bits on recent CPUs) When the new capability is set use the alternative range which do not have these restrictions. This lowers the overhead of perf stat slightly because it has to do less interrupts to accumulate the counter value. On Haswell it also avoids some problems with TSX aborting when the end of the counter range is reached. ( See the patch "perf/x86/intel: Avoid checkpointed counters causing excessive TSX aborts" for more details. ) Signed-off-by: Andi Kleen <ak@linux.intel.com> Reviewed-by: Stephane Eranian <eranian@google.com> Acked-by: Peter Zijlstra <a.p.zijlstra@chello.nl> Link: http://lkml.kernel.org/r/1372173153-20215-1-git-send-email-andi@firstfloor.org Signed-off-by: Ingo Molnar <mingo@kernel.org>
2013-06-26pwm: renesas-tpu: Add MODULE_ALIAS to make module auto loading workAxel Lin
This driver can be built as module, add MODULE_ALIAS to make module auto loading work. Signed-off-by: Axel Lin <axel.lin@ingics.com> Signed-off-by: Thierry Reding <thierry.reding@gmail.com>
2013-06-26perf: Disable monitoring on setuid processes for regular usersStephane Eranian
There was a a bug in setup_new_exec(), whereby the test to disabled perf monitoring was not correct because the new credentials for the process were not yet committed and therefore the get_dumpable() test was never firing. The patch fixes the problem by moving the perf_event test until after the credentials are committed. Signed-off-by: Stephane Eranian <eranian@google.com> Tested-by: Jiri Olsa <jolsa@redhat.com> Acked-by: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: <stable@kernel.org> Signed-off-by: Ingo Molnar <mingo@kernel.org>
2013-06-26microblaze: Enable KGDB in defconfigMichal Simek
Enable KGDB in defconfig to be sure that support is regularly compiled. Signed-off-by: Michal Simek <michal.simek@xilinx.com>
2013-06-26microblaze: Don't mark arch_kgdb_ops as const.Graeme Smecher
Other architectures don't do it, and it conflicts with the extern'd definition in include/linux/kgdb.h. The patch fails checkpatch but it reflects current functions declaration and solved compilation error. Signed-off-by: Graeme Smecher <gsmecher@threespeedlogic.com> CC: Michal Simek <monstr@monstr.eu> CC: linux-kernel@vger.kernel.org Signed-off-by: Michal Simek <michal.simek@xilinx.com>
2013-06-26irqchip: Add support for ARMv7-M NVICUwe Kleine-König
This interrupt controller is integrated in all Cortex-M3 and Cortex-M4 machines. Support for this controller appeared in Catalin's Cortex tree based on 2.6.33 but was nearly completely rewritten. Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Acked-by: Catalin Marinas <catalin.marinas@arm.com> Acked-by: Arnd Bergmann <arnd@arndb.de> Acked-by: Grant Likely <grant.likely@secretlab.ca> Cc: linux-arm-kernel@lists.infradead.org Cc: Jonathan Austin <jonathan.austin@arm.com> Cc: kernel@pengutronix.de Link: http://lkml.kernel.org/r/1372231128-11802-1-git-send-email-u.kleine-koenig@pengutronix.de Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2013-06-26netns: exclude ipvs from struct net when IPVS disabledJunweiZhang
no real problem is fixed, just save a few bytes in net_namespace structure. Signed-off-by: JunweiZhang <junwei.zhang@6wind.com> Signed-off-by: Nicolas Dichtel <nicolas.dichtel@6wind.com> Reviewed-by: Julian Anastasov <ja@ssi.bg> Signed-off-by: Simon Horman <horms@verge.net.au>
2013-06-26kernel: remove unnecessary head fileJunweiZhang
ip_vs.h is not necessary for sysctl_binary.c. prepare for the next patch to avoid compile issue. Signed-off-by: JunweiZhang <junwei.zhang@6wind.com> Signed-off-by: Nicolas Dichtel <nicolas.dichtel@6wind.com> Reviewed-by: Julian Anastasov <ja@ssi.bg> Signed-off-by: Simon Horman <horms@verge.net.au>
2013-06-26ipvs: add sync_persist_mode flagJulian Anastasov
Add sync_persist_mode flag to reduce sync traffic by syncing only persistent templates. Signed-off-by: Julian Anastasov <ja@ssi.bg> Tested-by: Aleksey Chudov <aleksey.chudov@gmail.com> Signed-off-by: Simon Horman <horms@verge.net.au>
2013-06-26ipvs: SH fallback and L4 hashingAlexander Frolkin
By default the SH scheduler rejects connections that are hashed onto a realserver of weight 0. This patch adds a flag to make SH choose a different realserver in this case, instead of rejecting the connection. The patch also adds a flag to make SH include the source port (TCP, UDP, SCTP) in the hash as well as the source address. This basically allows for deterministic round-robin load balancing (i.e., where any director in a cluster of directors with identical config will send the same packet the same way). The flags are service flags (IP_VS_SVC_F_SCHED*) so that these options can be set per service. They are set using a new option to ipvsadm. Signed-off-by: Alexander Frolkin <avf@eldamar.org.uk> Acked-by: Julian Anastasov <ja@ssi.bg> Signed-off-by: Simon Horman <horms@verge.net.au>
2013-06-26ipvs: drop SCTP connections depending on stateJulian Anastasov
Drop SCTP connections under load (dropentry context) depending on the protocol state, just like for TCP: INIT conns are dropped immediately, established are dropped randomly while connections in progress or shutdown are skipped. Signed-off-by: Julian Anastasov <ja@ssi.bg> Signed-off-by: Simon Horman <horms@verge.net.au>
2013-06-26ipvs: replace the SCTP state machineJulian Anastasov
Convert the SCTP state table, so that it is more readable. Change the states to be according to the diagram in RFC 2960 and add more states suitable for middle box. Still, such change in states adds incompatibility if systems in sync setup include this change and others do not include it. With this change we also have proper transitions in INPUT-ONLY mode (DR/TUN) where we see packets only from client. Now we should not switch to 10-second CLOSED state at a time when we should stay in ESTABLISHED state. The short names for states are because we have 16-char space in ipvsadm and 11-char limit for the connection list format. It is a sequence of the TCP implementation where the longest state name is ESTABLISHED. Signed-off-by: Julian Anastasov <ja@ssi.bg> Signed-off-by: Simon Horman <horms@verge.net.au>
2013-06-26ipvs: sloppy TCP and SCTPAlexander Frolkin
This adds support for sloppy TCP and SCTP modes to IPVS. When enabled (sysctls net.ipv4.vs.sloppy_tcp and net.ipv4.vs.sloppy_sctp), allows IPVS to create connection state on any packet, not just a TCP SYN (or SCTP INIT). This allows connections to fail over from one IPVS director to another mid-flight. Signed-off-by: Alexander Frolkin <avf@eldamar.org.uk> Signed-off-by: Julian Anastasov <ja@ssi.bg> Signed-off-by: Simon Horman <horms@verge.net.au>
2013-06-26ipvs: provide iph to schedulersJulian Anastasov
Before now the schedulers needed access only to IP addresses and it was easy to get them from skb by using ip_vs_fill_iph_addr_only. New changes for the SH scheduler will need the protocol and ports which is difficult to get from skb for the IPv6 case. As we have all the data in the iph structure, to avoid the same slow lookups provide the iph to schedulers. Signed-off-by: Julian Anastasov <ja@ssi.bg> Acked-by: Hans Schillstrom <hans@schillstrom.com> Signed-off-by: Simon Horman <horms@verge.net.au>
2013-06-26Merge tag 'please-pull-mce-bitmap-comment' of ↵Ingo Molnar
git://git.kernel.org/pub/scm/linux/kernel/git/ras/ras into x86/ras Pull MCE updates from Tony Luck: "Better comments so we understand our existing machine check bank bitmaps - prelude to adding another bitmap soon." Signed-off-by: Ingo Molnar <mingo@kernel.org>
2013-06-26serial: sh-sci: Initialise variables before access in sci_set_termios()Simon Horman
This change addresses two warnings that are flagged by gcc relating to potential access to the ssr and cks variables while they are uninitialised. I have addressed this by initialising the values to the defaults present in sci_baud_calc_hscif(). It is my analysis that cks is always initialised if used but that without this change ssr may be accessed while uninitialised. The code altered by this patch was introduced by commit f303b364b41d3fc5bf879799128958400b7859aa ("serial: sh-sci: HSCIF support"). Reported-by: Arnd Bergmann <arnd@arndb.de> Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
2013-06-26ALSA: ak4xx-adda: info leak in ak4xxx_capture_source_info()Dan Carpenter
"idx" is controled by the user and can be a negative offset into the input_names[] array. Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2013-06-26arc_emac: fix compile-time errors & warnings on PPC64Alexey Brodkin
As reported by "kbuild test robot" there were some errors and warnings on attempt to build kernel with "make ARCH=powerpc allmodconfig". And this patch addresses both errors and warnings. Below is a list of introduced changes: 1. Fix compile-time errors (misspellings in "dma_unmap_single") on PPC. 2. Use DMA address instead of "skb->data" as a pointer to data buffer. This fixed warnings on pointer to int conversion on 64-bit systems. 3. Re-implemented initial allocation of Rx buffers in "arc_emac_open" in the same way they're re-allocated during operation (receiving packets). So once again DMA address could be used instead of "skb->data". 4. Explicitly use EMAC_BUFFER_SIZE for Rx buffers allocation. Signed-off-by: Alexey Brodkin <abrodkin@synopsys.com> Cc: netdev@vger.kernel.org Cc: Andy Shevchenko <andy.shevchenko@gmail.com> Cc: Francois Romieu <romieu@fr.zoreil.com> Cc: Joe Perches <joe@perches.com> Cc: Vineet Gupta <vgupta@synopsys.com> Cc: Mischa Jonker <mjonker@synopsys.com> Cc: Arnd Bergmann <arnd@arndb.de> Cc: Grant Likely <grant.likely@linaro.org> Cc: Rob Herring <rob.herring@calxeda.com> Cc: Paul Gortmaker <paul.gortmaker@windriver.com> Cc: linux-kernel@vger.kernel.org Cc: devicetree-discuss@lists.ozlabs.org Cc: Florian Fainelli <florian@openwrt.org> Cc: David Laight <david.laight@aculab.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-06-26ARC: pt_regs update #5: Use real ECR for pt_regs->event vs. synth valuesVineet Gupta
pt_regs->event was set with artificial values to identify the low level system event (syscall trap / breakpoint trap / exceptions / interrupts) With r8 saving out of the way, the full word can be used to save real ECR (Exception Cause Register) which helps idenify the event naturally, including additional info such as cause code, param. Only for Interrupts, where ECR is not applicable, do we resort to synthetic non ECR values. SAVE_ALL_TRAP/EXCEPTIONS can now be merged as they both use ECR with different runtime values. The ptrace helpers now use the sub-fields of ECR to distinguish the events (e.g. vector 0x25 is trap, param 0 is syscall...) The following benefits will follow: (1) This centralizes the location of where ECR is saved and will allow the cleanup of task->thread.cause_code ECR placeholder which is set in non-uniform way. Then ARC VM code can safely rely on it being there for purpose of finer grained VM_EXEC dcache flush (based on exec fault: I-TLB Miss) (2) Further, ECR being passed around from low level handlers as arg can be eliminated as it is part of standard reg-file in pt_regs Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
2013-06-26ARM: at91: dt: rm9200ek: add spi supportJean-Christophe PLAGNIOL-VILLARD
Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com> Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
2013-06-26ARM: at91: dt: rm9200: add spi supportJean-Christophe PLAGNIOL-VILLARD
Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com> Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
2013-06-26ARM: at91/DT: at91sam9n12: add SPI DMA client infosNicolas Ferre
Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
2013-06-26ARM: at91/DT: sama5d3: add SPI DMA client infosNicolas Ferre
Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com> Tested-by: Wenyou Yang <wenyou.yang@atmel.com>
2013-06-26ARM: at91/DT: fix SPI compatibility stringNicolas Ferre
In previous version of SPI driver we where using different compatibility stings for finding SPI features. We are now using the IP revision information. So we stay with the unique compatibility string for this driver: "atmel,at91rm9200-spi". Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com> Tested-by: Wenyou Yang <wenyou.yang@atmel.com>
2013-06-26vgacon.c: add cond reschedule points in vgacon_do_font_opMarcelo Tosatti
Booting a 64-vcpu KVM guest, with CONFIG_PREEMPT_VOLUNTARY, can result in a soft lockup: BUG: soft lockup - CPU#41 stuck for 67s! [setfont:1505] RIP: 0010:[<ffffffff812c48da>] [<ffffffff812c48da>] vgacon_do_font_op.clone.0+0x1ba/0x550 This is due to the 8192 (cmapsz) IO operations taking longer than expected due to lock contention in QEMU. Add conditional resched points in between writes allowing other tasks to execute. Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com> Cc: stable@vger.kernel.org Signed-off-by: Dave Airlie <airlied@redhat.com>
2013-06-25gpio/omap: don't use linear domain mapping for OMAP1Javier Martinez Canillas
Commit ede4d7a5 ("gpio/omap: convert gpio irq domain to linear mapping") converted the OMAP GPIO driver to use a linear mapping for the GPIO IRQ domain instead of using a legacy mapping. Not using a legacy mapping has a number of benefits but it requires the platform to support SPARSE_IRQ which currently is not supported on OMAP1. So this change caused a regression on OMAP1 platforms [1]. Since this issue is not present on all OMAP2+ platforms, there is no need to revert the driver to use legacy domain mapping for all the platforms. [1]: http://www.mail-archive.com/linux-omap@vger.kernel.org/msg89005.html Signed-off-by: Javier Martinez Canillas <javier.martinez@collabora.co.uk> Tested-by: Aaro Koskinen <aaro.koskinen@iki.fi> Signed-off-by: Tony Lindgren <tony@atomide.com>
2013-06-25pch_uart: Add uart_clk selection for the MinnowBoardDarren Hart
Use DMI_BOARD_NAME to determine if we are running on a MinnowBoard and set the uart clock to 50MHz if so. This removes the need to pass the user_uartclk to the kernel at boot time. Signed-off-by: Darren Hart <dvhart@linux.intel.com> Cc: Jiri Slaby <jslaby@suse.cz> Cc: "H. Peter Anvin" <hpa@zytor.com> Cc: Peter Waskiewicz <peter.p.waskiewicz.jr@intel.com> Cc: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Cc: stable <stable@vger.kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-06-25driver core: device.h: fix doc compilation warningsMichael Opdenacker
This patch fixes the below 3 warnings running "make htmldocs", by adding descriptions for recently added structure members: DOCPROC Documentation/DocBook/device-drivers.xml Warning(/work/git.free-electrons.com/users/michael-opdenacker/linux//include/linux/device.h:116): No description found for parameter 'lock_key' Warning(/work/git.free-electrons.com/users/michael-opdenacker/linux//include/linux/device.h:723): No description found for parameter 'cma_area' Warning(/work/git.free-electrons.com/users/michael-opdenacker/linux//include/linux/device.h:723): No description found for parameter 'iommu_group' Don't hesitate to propose better descriptions! Signed-off-by: Michael Opdenacker <michael.opdenacker@free-electrons.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
generated by cgit (git 2.34.1) at 2025-09-23 23:12:19 +0000