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2011-02-15thp: prevent hugepages during args/env copying into the user stackAndrea Arcangeli
Transparent hugepages can only be created if rmap is fully functional. So we must prevent hugepages to be created while is_vma_temporary_stack() is true. This also optmizes away some harmless but unnecessary setting of khugepaged_scan.address and it switches some BUG_ON to VM_BUG_ON. Signed-off-by: Andrea Arcangeli <aarcange@redhat.com> Acked-by: Rik van Riel <riel@redhat.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2011-02-15Merge branch 'perf-fixes-for-linus' of ↵Linus Torvalds
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: x86: Fix text_poke_smp_batch() deadlock perf tools: Fix thread_map event synthesizing in top and record watchdog, nmi: Lower the severity of error messages ARM: oprofile: Fix backtraces in timer mode oprofile: Fix usage of CONFIG_HW_PERF_EVENTS for oprofile_perf_init and friends
2011-02-15Merge branch 'for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input: Input: matrix_keypad - increase the limit of rows and columns Input: wacom - fix error path in wacom_probe() Input: ads7846 - check proper condition when freeing gpio Revert "Input: do not pass injected events back to the originating handler" Input: sysrq - rework re-inject logic Input: serio - clear pending rescans after sysfs driver rebind Input: rotary_encoder - use proper irqflags Input: wacom_w8001 - report resolution to userland
2011-02-15Merge branch 'urgent' of ↵Ingo Molnar
git://git.kernel.org/pub/scm/linux/kernel/git/rric/oprofile into perf/urgent
2011-02-13klist: Fix object alignment on 64-bit.David Miller
Commit c0e69a5bbc6f ("klist.c: bit 0 in pointer can't be used as flag") intended to make sure that all klist objects were at least pointer size aligned, but used the constant "4" which only works on 32-bit. Use "sizeof(void *)" which is correct in all cases. Signed-off-by: David S. Miller <davem@davemloft.net> Acked-by: Jesper Nilsson <jesper.nilsson@axis.com> Cc: stable <stable@kernel.org> Cc: Greg Kroah-Hartman <gregkh@suse.de> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2011-02-11Input: matrix_keypad - increase the limit of rows and columnsTrilok Soni
Some keyboard controllers support more than 16 columns and rows. Increase the limit to 32. Signed-off-by: Trilok Soni <tsoni@codeaurora.org> Acked-by: Eric Miao <eric.y.miao@gmail.com> Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2011-02-11security: add cred argument to security_capable()Chris Wright
Expand security_capable() to include cred, so that it can be usable in a wider range of call sites. Signed-off-by: Chris Wright <chrisw@sous-sol.org> Acked-by: Serge Hallyn <serge.hallyn@canonical.com> Signed-off-by: James Morris <jmorris@namei.org>
2011-02-10Merge branch 'usb-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb-2.6 * 'usb-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb-2.6: (21 commits) USB: cdc-acm: Adding second ACM channel support for Nokia N8 USB, Mass Storage, composite, gadget: Fix build failure and memset of a struct USB: Fix trout build failure with ci13xxx_msm gadget USB: EHCI: fix scheduling while atomic during suspend USB: usb-storage: unusual_devs entry for Coby MP3 player USB: ftdi_sio: Add VID=0x0647, PID=0x0100 for Acton Research spectrograph USB: fix race between root-hub resume and wakeup requests USB: prevent buggy hubs from crashing the USB stack usb: r8a66597-udc: Fixed bufnum of Bulk USB: ftdi_sio: add ST Micro Connect Lite uart support USB: Storage: Add unusual_devs entry for VTech Kidizoom USB SL811HS HCD: Fix memory leak in sl811h_urb_enqueue() USB: ti_usb: fix module removal USB: io_edgeport: fix the reported firmware major and minor usb: ehci-omap: Show fatal probing time errors to end user usb: musb: introduce api for dma code to check compatibility with usb request usb: musb: maintain three states for buffer mappings instead of two usb: musb: disable double buffering when it's broken usb: musb: hsdma: change back to use musb_read/writew usb: musb: core: fix IRQ check ...
2011-02-10Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6Linus Torvalds
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6: (34 commits) virtio_net: Add schedule check to napi_enable call x25: Do not reference freed memory. pch_can: fix tseg1/tseg2 setting issue isdn: hysdn: Kill (partially buggy) CVS regision log reporting. can: softing_cs needs slab.h pch_gbe: Fix the issue which a driver locks when rx offload is set by ethtool netfilter: nf_conntrack: set conntrack templates again if we return NF_REPEAT pch_can: fix module reload issue with MSI pch_can: fix rmmod issue pch_can: fix 800k comms issue net: Fix lockdep regression caused by initializing netdev queues too early. net/caif: Fix dangling list pointer in freed object on error. USB CDC NCM errata updates for cdc_ncm host driver CDC NCM errata updates for cdc.h ixgbe: update version string ixgbe: cleanup variable initialization ixgbe: limit VF access to network traffic ixgbe: fix for 82599 erratum on Header Splitting ixgbe: fix variable set but not used warnings by gcc 4.6 e1000: add support for Marvell Alaska M88E1118R PHY ...
2011-02-09Merge git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux-2.6-for-linusLinus Torvalds
* git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux-2.6-for-linus: virtio: console: Update Copyright virtio: console: Wake up outvq on host notifications
2011-02-08CDC NCM errata updates for cdc.hAlexey Orishko
Changes are based on the following documents: - CDC NCM errata: http://www.usb.org/developers/devclass_docs/NCM10_012011.zip - CDC and WMC errata link: http://www.usb.org/developers/devclass_docs/CDC1.2_WMC1.1_012011.zip Signed-off-by: Alexey Orishko <alexey.orishko@stericsson.com> Acked-by: Greg Kroah-Hartman <gregkh@suse.de> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-02-09virtio: console: Update CopyrightAmit Shah
Signed-off-by: Amit Shah <amit.shah@redhat.com> Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2011-02-06Merge branch 'irq-fixes-for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip * 'irq-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: m32r: Fixup last __do_IRQ leftover genirq: Add missing status flags to modification mask
2011-02-06Merge branch 'perf-fixes-for-linus' of ↵Linus Torvalds
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: perf stat: Fix aggreate counter reading accounting tracing: Replace syscall_meta_data struct array with pointer array tracepoints: Fix section alignment using pointer array tracing: Replace trace_event struct array with pointer array
2011-02-05genirq: Add missing status flags to modification maskThomas Gleixner
The mask which filters out the valid bits which can be set via irq_modify_status() is missing IRQ_NO_BALANCING, which breaks UV. Add IRQ_PER_CPU as well to avoid another one line patch for 39. Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2011-02-04Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6Linus Torvalds
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6: (68 commits) net: can: janz-ican3: world-writable sysfs termination file net: can: at91_can: world-writable sysfs files MAINTAINERS: update email ids of the be2net driver maintainers. bridge: Don't put partly initialized fdb into hash r8169: prevent RxFIFO induced loops in the irq handler. r8169: RxFIFO overflow oddities with 8168 chipsets. r8169: use RxFIFO overflow workaround for 8168c chipset. include/net/genetlink.h: Allow genlmsg_cancel to accept a NULL argument net: Provide compat support for SIOCGETMIFCNT_IN6 and SIOCGETSGCNT_IN6. net: Support compat SIOCGETVIFCNT ioctl in ipv4. net: Fix bug in compat SIOCGETSGCNT handling. niu: Fix races between up/down and get_stats. tcp_ecn is an integer not a boolean atl1c: Add missing PCI device ID s390: Fix possibly wrong size in strncmp (smsgiucv) s390: Fix wrong size in memcmp (netiucv) qeth: allow OSA CHPARM change in suspend state qeth: allow HiperSockets framesize change in suspend qeth: add more strict MTU checking qeth: show new mac-address if its setting fails ...
2011-02-04USB: Fix trout build failure with ci13xxx_msm gadgetPavankumar Kondeti
This patch fixes the below compilation errors. CC drivers/usb/gadget/ci13xxx_msm.o CC net/mac80211/led.o drivers/usb/gadget/ci13xxx_msm.c: In function 'ci13xxx_msm_notify_event': drivers/usb/gadget/ci13xxx_msm.c:42: error: 'USB_AHBBURST' undeclared (first use in this function) drivers/usb/gadget/ci13xxx_msm.c:42: error: (Each undeclared identifier is reported only once drivers/usb/gadget/ci13xxx_msm.c:42: error: for each function it appears in.) drivers/usb/gadget/ci13xxx_msm.c:43: error: 'USB_AHBMODE' undeclared (first use in this function) make[4]: *** [drivers/usb/gadget/ci13xxx_msm.o] Error 1 make[3]: *** [drivers/usb/gadget] Error 2 MSM USB driver is not supported on boards like trout (MSM7201) which has an external PHY. Signed-off-by: Pavankumar Kondeti <pkondeti@codeaurora.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-02-04Merge branch 'tip/perf/urgent-2' of ↵Ingo Molnar
git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-2.6-trace into perf/urgent
2011-02-03net: Provide compat support for SIOCGETMIFCNT_IN6 and SIOCGETSGCNT_IN6.David S. Miller
Signed-off-by: David S. Miller <davem@davemloft.net>
2011-02-03tracing: Replace syscall_meta_data struct array with pointer arraySteven Rostedt
Currently the syscall_meta structures for the syscall tracepoints are placed in the __syscall_metadata section, and at link time, the linker makes one large array of all these syscall metadata structures. On boot up, this array is read (much like the initcall sections) and the syscall data is processed. The problem is that there is no guarantee that gcc will place complex structures nicely together in an array format. Two structures in the same file may be placed awkwardly, because gcc has no clue that they are suppose to be in an array. A hack was used previous to force the alignment to 4, to pack the structures together. But this caused alignment issues with other architectures (sparc). Instead of packing the structures into an array, the structures' addresses are now put into the __syscall_metadata section. As pointers are always the natural alignment, gcc should always pack them tightly together (otherwise initcall, extable, etc would also fail). By having the pointers to the structures in the section, we can still iterate the trace_events without causing unnecessary alignment problems with other architectures, or depending on the current behaviour of gcc that will likely change in the future just to tick us kernel developers off a little more. The __syscall_metadata section is also moved into the .init.data section as it is now only needed at boot up. Suggested-by: David Miller <davem@davemloft.net> Acked-by: David S. Miller <davem@davemloft.net> Cc: Mathieu Desnoyers <mathieu.desnoyers@efficios.com> Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
2011-02-03tracepoints: Fix section alignment using pointer arrayMathieu Desnoyers
Make the tracepoints more robust, making them solid enough to handle compiler changes by not relying on anything based on compiler-specific behavior with respect to structure alignment. Implement an approach proposed by David Miller: use an array of const pointers to refer to the individual structures, and export this pointer array through the linker script rather than the structures per se. It will consume 32 extra bytes per tracepoint (24 for structure padding and 8 for the pointers), but are less likely to break due to compiler changes. History: commit 7e066fb8 tracepoints: add DECLARE_TRACE() and DEFINE_TRACE() added the aligned(32) type and variable attribute to the tracepoint structures to deal with gcc happily aligning statically defined structures on 32-byte multiples. One attempt was to use a 8-byte alignment for tracepoint structures by applying both the variable and type attribute to tracepoint structures definitions and declarations. It worked fine with gcc 4.5.1, but broke with gcc 4.4.4 and 4.4.5. The reason is that the "aligned" attribute only specify the _minimum_ alignment for a structure, leaving both the compiler and the linker free to align on larger multiples. Because tracepoint.c expects the structures to be placed as an array within each section, up-alignment cause NULL-pointer exceptions due to the extra unexpected padding. (this patch applies on top of -tip) Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com> Acked-by: David S. Miller <davem@davemloft.net> LKML-Reference: <20110126222622.GA10794@Krystal> CC: Frederic Weisbecker <fweisbec@gmail.com> CC: Ingo Molnar <mingo@elte.hu> CC: Thomas Gleixner <tglx@linutronix.de> CC: Andrew Morton <akpm@linux-foundation.org> CC: Peter Zijlstra <peterz@infradead.org> CC: Rusty Russell <rusty@rustcorp.com.au> Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
2011-02-02tracing: Replace trace_event struct array with pointer arraySteven Rostedt
Currently the trace_event structures are placed in the _ftrace_events section, and at link time, the linker makes one large array of all the trace_event structures. On boot up, this array is read (much like the initcall sections) and the events are processed. The problem is that there is no guarantee that gcc will place complex structures nicely together in an array format. Two structures in the same file may be placed awkwardly, because gcc has no clue that they are suppose to be in an array. A hack was used previous to force the alignment to 4, to pack the structures together. But this caused alignment issues with other architectures (sparc). Instead of packing the structures into an array, the structures' addresses are now put into the _ftrace_event section. As pointers are always the natural alignment, gcc should always pack them tightly together (otherwise initcall, extable, etc would also fail). By having the pointers to the structures in the section, we can still iterate the trace_events without causing unnecessary alignment problems with other architectures, or depending on the current behaviour of gcc that will likely change in the future just to tick us kernel developers off a little more. The _ftrace_event section is also moved into the .init.data section as it is now only needed at boot up. Suggested-by: David Miller <davem@davemloft.net> Cc: Mathieu Desnoyers <mathieu.desnoyers@efficios.com> Acked-by: David S. Miller <davem@davemloft.net> Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
2011-02-02vfs: sparse: add __FMODE_EXECNamhyung Kim
FMODE_EXEC is a constant type of fmode_t but was used with normal integer constants. This results in following warnings from sparse. Fix it using new macro __FMODE_EXEC. fs/exec.c:116:58: warning: restricted fmode_t degrades to integer fs/exec.c:689:58: warning: restricted fmode_t degrades to integer fs/fcntl.c:777:9: warning: restricted fmode_t degrades to integer Signed-off-by: Namhyung Kim <namhyung@gmail.com> Cc: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2011-02-02vfs: sparse: remove a warning on OPEN_FMODE()Namhyung Kim
AND-ing FMODE_* constant with normal integer results in following sparse warnings. Fix it. fs/open.c:662:21: warning: restricted fmode_t degrades to integer fs/anon_inodes.c:123:34: warning: restricted fmode_t degrades to integer Signed-off-by: Namhyung Kim <namhyung@gmail.com> Cc: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2011-02-02memcg: prevent endless loop when charging huge pages to near-limit groupJohannes Weiner
If reclaim after a failed charging was unsuccessful, the limits are checked again, just in case they settled by means of other tasks. This is all fine as long as every charge is of size PAGE_SIZE, because in that case, being below the limit means having at least PAGE_SIZE bytes available. But with transparent huge pages, we may end up in an endless loop where charging and reclaim fail, but we keep going because the limits are not yet exceeded, although not allowing for a huge page. Fix this up by explicitely checking for enough room, not just whether we are within limits. Signed-off-by: Johannes Weiner <hannes@cmpxchg.org> Acked-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com> Reviewed-by: Minchan Kim <minchan.kim@gmail.com> Cc: Balbir Singh <balbir@linux.vnet.ibm.com> Cc: Daisuke Nishimura <nishimura@mxp.nes.nec.co.jp> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2011-02-01Merge branch 'bugfixes' of git://git.linux-nfs.org/projects/trondmy/nfs-2.6Linus Torvalds
* 'bugfixes' of git://git.linux-nfs.org/projects/trondmy/nfs-2.6: NFS: NFSv4 readdir loses entries NFS: Micro-optimize nfs4_decode_dirent() NFS: Fix an NFS client lockdep issue NFS construct consistent co_ownerid for v4.1 NFS: nfs_wcc_update_inode() should set nfsi->attr_gencount NFS improve pnfs_put_deviceid_cache debug print NFS fix cb_sequence error processing NFS do not find client in NFSv4 pg_authenticate NLM: Fix "kernel BUG at fs/lockd/host.c:417!" or ".../host.c:283!" NFS: Prevent memory allocation failure in nfsacl_encode() NFS: nfsacl_{encode,decode} should return signed integer NFS: Fix "kernel BUG at fs/nfs/nfs3xdr.c:1338!" NFS: Fix "kernel BUG at fs/aio.c:554!" NFS4: Avoid potential NULL pointer dereference in decode_and_add_ds(). NFS: fix handling of malloc failure during nfs_flush_multi()
2011-02-01kernel.h: fix kernel-doc warningRandy Dunlap
Fix kernel-doc warning in kernel.h from commit 7ef88ad56145 ("BUILD_BUG_ON: make it handle more cases"): Warning(include/linux/kernel.h:605): No description found for parameter 'condition' Warning(include/linux/kernel.h:605): Excess function parameter 'cond' description in 'BUILD_BUG_ON' Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2011-02-01Merge branch 'usb-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb-2.6 * 'usb-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb-2.6: (42 commits) usb: gadget: composite: avoid access beyond array max length USB: serial: handle Data Carrier Detect changes USB: gadget: Fix endpoint representation in ci13xxx_udc USB: gadget: Fix error path in ci13xxx_udc gadget probe function usb: pch_udc: Fix the worning log issue at gadget driver remove USB: serial: Updated support for ICOM devices USB: ehci-mxc: add work-around for efika mx/sb bug USB: unbreak ehci-mxc on otg port of i.MX27 drivers: update to pl2303 usb-serial to support Motorola cables USB: adding USB support for Cinterion's HC2x, EU3 and PH8 products USB serial: add missing .usb_driver field in serial drivers USB: ehci-fsl: Fix 'have_sysif_regs' detection USB: g_printer: fix bug in module parameter definitions USB: g_printer: fix bug in unregistration USB: uss720: remove duplicate USB device MAINTAINERS: add ueagle-atm entry USB: EHCI: fix DMA deallocation bug USB: pch_udc: support new device ML7213 IOH usb: pch_udc: Fixed issue which does not work with g_serial usb: set ep_dev async suspend should be later than device_initialize ...
2011-01-30net: Add compat ioctl support for the ipv4 multicast ioctl SIOCGETSGCNTEric W. Biederman
SIOCGETSGCNT is not a unique ioctl value as it it maps tio SIOCPROTOPRIVATE +1, which unfortunately means the existing infrastructure for compat networking ioctls is insufficient. A trivial compact ioctl implementation would conflict with: SIOCAX25ADDUID SIOCAIPXPRISLT SIOCGETSGCNT_IN6 SIOCGETSGCNT SIOCRSSCAUSE SIOCX25SSUBSCRIP SIOCX25SDTEFACILITIES To make this work I have updated the compat_ioctl decode path to mirror the the normal ioctl decode path. I have added an ipv4 inet_compat_ioctl function so that I can have ipv4 specific compat ioctls. I have added a compat_ioctl function into struct proto so I can break out ioctls by which kind of ip socket I am using. I have added a compat_raw_ioctl function because SIOCGETSGCNT only works on raw sockets. I have added a ipmr_compat_ioctl that mirrors the normal ipmr_ioctl. This was necessary because unfortunately the struct layout for the SIOCGETSGCNT has unsigned longs in it so changes between 32bit and 64bit kernels. This change was sufficient to run a 32bit ip multicast routing daemon on a 64bit kernel. Reported-by: Bill Fenner <fenner@aristanetworks.com> Signed-off-by: Eric W. Biederman <ebiederm@xmission.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-01-30caif: bugfix - add caif headers for userspace usage.sjur.brandeland@stericsson.com
Add caif_socket.h and if_caif.h to the kernel header files exported for use by userspace. Signed-off-by: Sjur Braendeland <sjur.brandeland@stericsson.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-01-26ARM: oprofile: Fix backtraces in timer modeAri Kauppi
Always allow backtraces when using oprofile on ARM, even if a PMU isn't present. Restores functionality originally introduced in commit 1b7b56982fdcd9d85effd76f3928cf5d6eb26155 ("oprofile: Always allow backtraces on ARM") by Richard Purdie. It is not that obvious, but there is now only one oprofile_arch_init() function. So the .backtrace callback is available also in timer mode. Implemented by removing code and using stubs for oprofile_perf_{init, exit} provided by <linux/oprofile.h>. This allows cleaning of other architecture specific implementations too. Cc: stable@kernel.org # 37.x Signed-off-by: Ari Kauppi <kauppi@papupata.org> Acked-by: Will Deacon <will.deacon@arm.com> Signed-off-by: Robert Richter <robert.richter@amd.com>
2011-01-26oprofile: Fix usage of CONFIG_HW_PERF_EVENTS for oprofile_perf_init and friendsAri Kauppi
The implementations are flagged in Makefile with CONFIG_HW_PERF_EVENTS instead of CONFIG_PERF_EVENTS. Cc: stable@kernel.org # 37.x Signed-off-by: Ari Kauppi <kauppi@papupata.org> Signed-off-by: Robert Richter <robert.richter@amd.com>
2011-01-26Merge branch 'for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input: Input: wacom - pass touch resolution to clients through input_absinfo Input: wacom - add 2 Bamboo Pen and touch models Input: sysrq - ensure sysrq_enabled and __sysrq_enabled are consistent Input: sparse-keymap - fix KEY_VSW handling in sparse_keymap_setup Input: tegra-kbc - add tegra keyboard driver Input: gpio_keys - switch to using request_any_context_irq Input: serio - allow registered drivers to get status flag Input: ct82710c - return proper error code for ct82c710_open Input: bu21013_ts - added regulator support Input: bu21013_ts - remove duplicate resolution parameters Input: tnetv107x-ts - don't treat NULL clk as an error Input: tnetv107x-keypad - don't treat NULL clk as an error Fix up trivial conflicts in drivers/input/keyboard/Makefile due to additions of tc3589x/Tegra drivers
2011-01-26console: rename acquire/release_console_sem() to console_lock/unlock()Torben Hohn
The -rt patches change the console_semaphore to console_mutex. As a result, a quite large chunk of the patches changes all acquire/release_console_sem() to acquire/release_console_mutex() This commit makes things use more neutral function names which dont make implications about the underlying lock. The only real change is the return value of console_trylock which is inverted from try_acquire_console_sem() This patch also paves the way to switching console_sem from a semaphore to a mutex. [akpm@linux-foundation.org: coding-style fixes] [akpm@linux-foundation.org: make console_trylock return 1 on success, per Geert] Signed-off-by: Torben Hohn <torbenh@gmx.de> Cc: Thomas Gleixner <tglx@tglx.de> Cc: Greg KH <gregkh@suse.de> Cc: Ingo Molnar <mingo@elte.hu> Cc: Geert Uytterhoeven <geert@linux-m68k.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2011-01-26Merge branch 'rmobile-fixes-for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/lethal/sh-2.6 * 'rmobile-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/lethal/sh-2.6: ARM: mach-shmobile: AG5EVM LCDC / MIPI-DSI platform data ARM: mach-shmobile: sh73a0 CPGA fix for PLL CFG bit ARM: mach-shmobile: mackerel: clarify shdi/mmcif switch settings ARM: mach-shmobile: sh73a0 CPGA fix for IrDA MSTP ARM: mach-shmobile: sh73a0 CPGA fix for FRQCRA M3 ARM: mach-shmobile: remove sh7367 on-chip set_irq_type() ARM: mach-shmobile: sh7372 INTCS MFIS2 interrupt update ARM: mach-shmobile: ag5evm: Add IrDA support ARM: mach-shmobile: clock-sh7372: fixup pllc2 set_rate mmc: sh_mmcif: Convert to __raw_xxx() I/O accessors. ARM: mach-shmobile: ag5evm requires GPIOLIB ARM: mach-shmobile: fix cpu_base of gic_init() on sh73a0
2011-01-25NFS do not find client in NFSv4 pg_authenticateAndy Adamson
The information required to find the nfs_client cooresponding to the incoming back channel request is contained in the NFS layer. Perform minimal checking in the RPC layer pg_authenticate method, and push more detailed checking into the NFS layer where the nfs_client can be found. Signed-off-by: Andy Adamson <andros@netapp.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2011-01-25NFS: Prevent memory allocation failure in nfsacl_encode()Chuck Lever
nfsacl_encode() allocates memory in certain cases. This of course is not guaranteed to work. Since commit 9f06c719 "SUNRPC: New xdr_streams XDR encoder API", the kernel's XDR encoders can't return a result indicating possibly a failure, so a memory allocation failure in nfsacl_encode() has become fatal (ie, the XDR code Oopses) in some cases. However, the allocated memory is a tiny fixed amount, on the order of 40-50 bytes. We can easily use a stack-allocated buffer for this, with only a wee bit of nose-holding. Signed-off-by: Chuck Lever <chuck.lever@oracle.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2011-01-25NFS: nfsacl_{encode,decode} should return signed integerChuck Lever
Clean up. The nfsacl_encode() and nfsacl_decode() functions return negative errno values, and each call site verifies that the returned value is not negative. Change the synopsis of both of these functions to reflect this usage. Document the synopsis and return values. Reported-by: Trond Myklebust <trond.myklebust@netapp.com> Signed-off-by: Chuck Lever <chuck.lever@oracle.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2011-01-25Merge branch 'timers-fixes-for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip * 'timers-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: RTC: Remove Kconfig symbol for UIE emulation RTC: Properly handle rtc_read_alarm error propagation and fix bug RTC: Propagate error handling via rtc_timer_enqueue properly acpi_pm: Clear pmtmr_ioport if acpi_pm initialization fails rtc: Cleanup removed UIE emulation declaration hrtimers: Notify hrtimer users of switches to NOHZ mode
2011-01-24Input: sysrq - ensure sysrq_enabled and __sysrq_enabled are consistentAndy Whitcroft
Currently sysrq_enabled and __sysrq_enabled are initialised separately and inconsistently, leading to sysrq being actually enabled by reported as not enabled in sysfs. The first change to the sysfs configurable synchronises these two: static int __read_mostly sysrq_enabled = 1; static int __sysrq_enabled; Add a common define to carry the default for these preventing them becoming out of sync again. Default this to 1 to mirror previous behaviour. Signed-off-by: Andy Whitcroft <apw@canonical.com> Cc: stable@kernel.org Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2011-01-24Merge branch 'BUG_ON' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux-2.6-for-linus * 'BUG_ON' of git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux-2.6-for-linus: Remove MAYBE_BUILD_BUG_ON BUILD_BUG_ON: make it handle more cases
2011-01-24Remove MAYBE_BUILD_BUG_ONRusty Russell
Now BUILD_BUG_ON() can handle optimizable constants, we don't need MAYBE_BUILD_BUG_ON any more. Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2011-01-24BUILD_BUG_ON: make it handle more casesRusty Russell
BUILD_BUG_ON used to use the optimizer to do code elimination or fail at link time; it was changed to first the size of a negative array (a nicer compile time error), then (in 8c87df457cb58fe75b9b893007917cf8095660a0) to a bitfield. This forced us to change some non-constant cases to MAYBE_BUILD_BUG_ON(); as Jan points out in that commit, it didn't work as intended anyway. bitfields: needs a literal constant at parse time, and can't be put under "if (__builtin_constant_p(x))" for example. negative array: can handle anything, but if the compiler can't tell it's a constant, silently has no effect. link time: breaks link if the compiler can't determine the value, but the linker output is not usually as informative as a compiler error. If we use the negative-array-size method *and* the link time trick, we get the ability to use BUILD_BUG_ON() under __builtin_constant_p() branches, and maximal ability for the compiler to detect errors at build time. We also document it thoroughly. Signed-off-by: Rusty Russell <rusty@rustcorp.com.au> Cc: Jan Beulich <JBeulich@novell.com> Acked-by: Hollis Blanchard <hollisb@us.ibm.com>
2011-01-24param: add null statement to compiled-in module paramsLinus Walleij
Add an unused struct declaration statement requiring a terminating semicolon to the compile-in case to provoke an error if __MODULE_INFO() is used without the terminating semicolon. Previously MODULE_ALIAS("foo") (no semicolon) compiled fine if MODULE was not selected. Cc: Dan Carpenter <error27@gmail.com> Signed-off-by: Linus Walleij <linus.walleij@stericsson.com> Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2011-01-24module: fix linker error for MODULE_VERSION when !MODULE and CONFIG_SYSFS=nRusty Russell
lib/built-in.o:(__modver+0x8): undefined reference to `__modver_version_show' lib/built-in.o:(__modver+0x2c): undefined reference to `__modver_version_show' Simplest to just not emit anything: if they've disabled SYSFS they probably want the smallest kernel possible. Reported-by: Randy Dunlap <randy.dunlap@oracle.com> Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2011-01-24module: show version information for built-in modules in sysfsDmitry Torokhov
Currently only drivers that are built as modules have their versions shown in /sys/module/<module_name>/version, but this information might also be useful for built-in drivers as well. This especially important for drivers that do not define any parameters - such drivers, if built-in, are completely invisible from userspace. This patch changes MODULE_VERSION() macro so that in case when we are compiling built-in module, version information is stored in a separate section. Kernel then uses this data to create 'version' sysfs attribute in the same fashion it creates attributes for module parameters. Signed-off-by: Dmitry Torokhov <dtor@vmware.com> Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2011-01-24Merge branch 'for-usb-linus' of ↵Greg Kroah-Hartman
master.kernel.org:/pub/scm/linux/kernel/git/sarah/xhci into usb-linus * 'for-usb-linus' of master.kernel.org:/pub/scm/linux/kernel/git/sarah/xhci: xhci: Remove more doorbell-related reads xHCI: fix printk_ratelimit() usage xHCI: replace dev_dbg() with xhci_dbg() xHCI: fix cycle bit set in giveback_first_trb() xHCI: remove redundant parameter in giveback_first_trb() xHCI: fix queue_trb in isoc transfer xhci: Use GFP_NOIO during device reset. usb: Realloc xHCI structures after a hub is verified. xhci: Do not run xhci_cleanup_msix with irq disabled xHCI: synchronize irq in xhci_suspend() xhci: Resume bus on any port status change.
2011-01-22USB: serial: handle Data Carrier Detect changesLibor Pechacek
Alan's commit 335f8514f200e63d689113d29cb7253a5c282967 introduced .carrier_raised function in several drivers. That also means tty_port_block_til_ready can now suspend the process trying to open the serial port when Carrier Detect is low and put it into tty_port.open_wait queue. We need to wake up the process when Carrier Detect goes high and trigger TTY hangup when CD goes low. Some of the devices do not report modem status line changes, or at least we don't understand the status message, so for those we remove .carrier_raised again. Signed-off-by: Libor Pechacek <lpechacek@suse.cz> Cc: stable <stable@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-01-21Merge branch 'fixes-2.6.38' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tj/wq * 'fixes-2.6.38' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/wq: workqueue: note the nested NOT_RUNNING test in worker_clr_flags() isn't a noop workqueue: relax lockdep annotation on flush_work()
2011-01-21Merge branch 'irq-cleanup-for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip * 'irq-cleanup-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: (37 commits) um: Use generic irq Kconfig tile: Use generic irq Kconfig sparc: Use generic irq Kconfig score: Use generic irq Kconfig powerpc: Use generic irq Kconfig parisc: Use generic irq Kconfig mn10300: Use generic irq Kconfig microblaze: Use generic irq Kconfig m68knommu: Use generic irq Kconfig ia64: Use generic irq Kconfig frv: Use generic irq Kconfig blackfin: Use generic irq Kconfig alpha: Use generic irq Kconfig genirq: Remove __do_IRQ m32r: Convert to generic irq Kconfig m32r: Convert usrv platform irq handling m32r: Convert opsput_lcdpld irq chip m32r: Convert opsput lanpld irq chip m32r: Convert opsput pld irq chip m32r: Convert opsput irq chip ...