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2011-11-18USB: option: release new PID for ZTE 3G modem[email protected]1-0/+21
This patch adds new PIDs for ZTE 3G modem, after we confirm it and tested. Thanks for Dan's work at kernel option devier. Signed-off-by: Alvin.Zheng <[email protected]> Signed-off-by: wsalvin <[email protected]> Cc: stable <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]>
2011-11-18usb: Netlogic: Fix HC_LENGTH call in ehci-xls.cJayachandran C1-1/+1
Fix compile error, HC_LENGTH now takes two parameters and ehci needs to be passed as the first parameter. Signed-off-by: Jayachandran C <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]>
2011-11-18misc: ad525x_dpot: Fix AD8400 spi transfer size.Michael Hennerich1-1/+1
AD8400 type devices require 16-bit command transfers. Signed-off-by: Michael Hennerich <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]>
2011-11-18drivers/base/node.c: fix compilation error with older versions of gccClaudio Scordino1-6/+8
Patch to fix the error message "directives may not be used inside a macro argument" which appears when the kernel is compiled for the cris architecture. Signed-off-by: Claudio Scordino <[email protected]> Acked-by: David Rientjes <[email protected]> Cc: stable <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]>
2011-11-18ktest: Check parent options for iterated testsRabin Vincent1-0/+16
Let's say we have "OUTPUT_DIR = build/${TEST_NAME}", and we're iterating a test. In the second iteration of a test, the TEST_NAME of the test we're repeating is not used. Instead, ${TEST_NAME} appears literally: touch /home/rabin/kernel/test/build/${TEST_NAME}/.config ... SUCCESS Fix this by making __eval_option() check the parent test options for a repeated test. Link: http://lkml.kernel.org/r/[email protected] Signed-off-by: Rabin Vincent <[email protected]> Signed-off-by: Steven Rostedt <[email protected]>
2011-11-18Merge branch 'stable/for-linus-fixes-3.2' of ↵Linus Torvalds10-35/+36
git://git.kernel.org/pub/scm/linux/kernel/git/konrad/xen * 'stable/for-linus-fixes-3.2' of git://git.kernel.org/pub/scm/linux/kernel/git/konrad/xen: xen-gntalloc: signedness bug in add_grefs() xen-gntalloc: integer overflow in gntalloc_ioctl_alloc() xen-gntdev: integer overflow in gntdev_alloc_map() xen:pvhvm: enable PVHVM VCPU placement when using more than 32 CPUs. xen/balloon: Avoid OOM when requesting highmem xen: Remove hanging references to CONFIG_XEN_PLATFORM_PCI xen: map foreign pages for shared rings by updating the PTEs directly
2011-11-18Merge branch 'for-linus' of git://git.kernel.dk/linux-blockLinus Torvalds13-128/+79
* 'for-linus' of git://git.kernel.dk/linux-block: block: add missed trace_block_plug paride: fix potential information leak in pg_read() bio: change some signed vars to unsigned block: avoid unnecessary plug list flush cciss: auto engage SCSI mid layer at driver load time loop: cleanup set_status interface include/linux/bio.h: use a static inline function for bio_integrity_clone() loop: prevent information leak after failed read block: Always check length of all iov entries in blk_rq_map_user_iov() The Windows driver .inf disables ASPM on all cciss devices. Do the same. backing-dev: ensure wakeup_timer is deleted block: Revert "[SCSI] genhd: add a new attribute "alias" in gendisk"
2011-11-18Merge branch 'unicore32' of git://github.com/gxt/linuxLinus Torvalds8-35/+22
* 'unicore32' of git://github.com/gxt/linux: unicore32, exec: remove redundant set_fs(USER_DS) unicore32: Fix typo 'PUV3_I2C' unicore32: drop unused Kconfig symbols rtc: rtc-puv3: Add __devinit and __devexit markers for probe and remove arch/unicore32: do not use EXTRA_AFLAGS or EXTRA_CFLAGS unicore32: fix build error for find bitops
2011-11-18Merge branch 'merge' of ↵Linus Torvalds27-119/+158
git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc * 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc: powerpc/signal32: Fix sigset_t conversion when copying to user powerpc: Fix atomic_xxx_return barrier semantics powerpc: Remove buggy 9-year-old test for binutils < 2.12.1 powerpc/book3e-64: Fix debug support for userspace powerpc: Remove extraneous CONFIG_PPC_ADV_DEBUG_REGS define powerpc: Revert show_regs() define for readability powerpc/ps3: Fix SMP lockdep boot warning powerpc/ps3: Fix lost SMP IPIs powerpc: Add hvcall.h include to book3s_hv.c powerpc/trace: Add a dummy stack frame for trace_hardirqs_off powerpc: Copy down exception vectors after feature fixups powerpc: panic if we can't instantiate RTAS powerpc/4xx: Fix typos in kexec config dependencies powerpc/fsl: MCU_MPC8349EMITX wants I2C built-in, modular won't do... powerpc/fsl_udc_core: Fix dumb typo carma-fpga: Missed switch from of_register_platform_driver() powerpc: Fix build breakage in jump_label.c
2011-11-18Merge branch 'for-linus' of git://git.selinuxproject.org/~jmorris/linux-securityLinus Torvalds4-80/+48
* 'for-linus' of git://git.selinuxproject.org/~jmorris/linux-security: encrypted-keys: module build fixes encrypted-keys: fix error return code Smack: smackfs cipso seq read repair
2011-11-18OMAPDSS: DISPC: skip scaling calculations when not scalingTomi Valkeinen1-6/+5
Current code calculates scaling factors for video overlays even when the overlays are not scaled. Change the code to skip calculations when not scaling. This optimizes the code a bit, but also fixes a problem when configuring an overlay for a disabled display: if the display is disabled we don't necessarily know the pixel clock used when the display is enabled, and in some cases (like HDMI) the pixel clock is set to zero until a proper video mode is set later. A wrong pixel clock will mess up the scaling calculations, causing an error like: omapdss DISPC error: failed to set up scaling, required fclk rate = 0 Hz, current fclk rate = 170666666 Hz A proper fix would be to check later whether the clocks are enough for the scaling, at the point when the overlay or display is actually enabled, but this patch removes the problem for now. Signed-off-by: Tomi Valkeinen <[email protected]>
2011-11-18OMAPFB: fix compilation warnings due to missing includeTomi Valkeinen1-0/+1
Fix warnings similar to this by including module.h: drivers/video/omap/dispc.c:276:1: warning: data definition has no type or storage class drivers/video/omap/dispc.c:276:1: warning: type defaults to 'int' in declaration of 'EXPORT_SYMBOL' Signed-off-by: Tomi Valkeinen <[email protected]>
2011-11-18OMAPDSS: HDMI: fix returned HDMI pixel clockTomi Valkeinen1-1/+1
hdmi_get_pixel_clock() returns the pixel clock in Hz, but the pck is stored as kHz. This means the return value has to be multiplied by 1000, not by 10000 as the code did. Signed-off-by: Tomi Valkeinen <[email protected]>
2011-11-17sparc64: Patch sun4v code sequences properly on module load.David S. Miller3-19/+63
Some of the sun4v code patching occurs in inline functions visible to, and usable by, modules. Therefore we have to patch them up during module load. Signed-off-by: David S. Miller <[email protected]>
2011-11-17sky2: fix hang in napi_disablestephen hemminger2-7/+11
If IRQ was never initialized, then calling napi_disable() would hang. Add more bookkeeping to track whether IRQ was ever initialized. Signed-off-by: Stephen Hemminger <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2011-11-17sky2: enforce minimum ring sizestephen hemminger1-2/+12
The hardware has a restriction that the minimum ring size possible is 128. The number of elements used is controlled by tx_pending and the overall number of elements in the ring tx_ring_size, therefore it is okay to limit the number of elements in use to a small value (63) but still provide a bigger ring. Signed-off-by: Stephen Hemminger <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2011-11-17sparc: Kill custom io_remap_pfn_range().David S. Miller5-273/+32
To handle the large physical addresses, just make a simple wrapper around remap_pfn_range() like MIPS does. Signed-off-by: David S. Miller <[email protected]>
2011-11-17bonding: Don't allow mode change via sysfs with slaves presentVeaceslav Falico1-0/+7
When changing mode via bonding's sysfs, the slaves are not initialized correctly. Forbid to change modes with slaves present to ensure that every slave is initialized correctly via bond_enslave(). Signed-off-by: Veaceslav Falico <[email protected]> Signed-off-by: Andy Gospodarek <[email protected]> Acked-by: Nicolas de Pesloüan <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2011-11-18Merge branch 'encrypted-key-fixes' of ↵James Morris3-4/+9
git://git.kernel.org/pub/scm/linux/kernel/git/zohar/linux-integrity into for-linus
2011-11-18Merge branch 'for-1111' of git://gitorious.org/smack-next/kernel into for-linusJames Morris1-76/+39
2011-11-17timekeeping: add arch_offset hook to ktime_get functionsHector Palacios1-0/+4
ktime_get and ktime_get_ts were calling timekeeping_get_ns() but later they were not calling arch_gettimeoffset() so architectures using this mechanism returned 0 ns when calling these functions. This happened for example when running Busybox's ping which calls syscall(__NR_clock_gettime, CLOCK_MONOTONIC, ts) which eventually calls ktime_get. As a result the returned ping travel time was zero. CC: [email protected] Signed-off-by: Hector Palacios <[email protected]> Signed-off-by: John Stultz <[email protected]>
2011-11-17Merge branch 'for-davem' of ↵David S. Miller4-2/+23
git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless
2011-11-17f_phonet: fix page offset of first received fragmentRémi Denis-Courmont1-1/+1
We pull one byte (the MAC header) from the first fragment before the fragment is actually appended. So the socket buffer length is 1, not 0. Signed-off-by: Rémi Denis-Courmont <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2011-11-17drm/i915: Fix inconsistent backlight level during disabledTakashi Iwai1-1/+2
When the brightness property is inquired while the backlight is disabled, the driver returns a wrong value (zero) because it probes the value after the backlight was turned off. This caused a black screen even after the backlight is enabled again. It should return the internal backlight_level instead, so that it won't be influenced by the backlight-enable state. BugLink: https://bugs.freedesktop.org/show_bug.cgi?id=41926 BugLink: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/872652 Tested-by: Kamal Mostafa <[email protected]> Cc: Alex Davis <[email protected]> Cc: <[email protected]> Signed-off-by: Takashi Iwai <[email protected]> Signed-off-by: Keith Packard <[email protected]>
2011-11-17pstore: pass allocated memory region back to callerKees Cook4-17/+40
The buf_lock cannot be held while populating the inodes, so make the backend pass forward an allocated and filled buffer instead. This solves the following backtrace. The effect is that "buf" is only ever used to notify the backends that something was written to it, and shouldn't be used in the read path. To replace the buf_lock during the read path, isolate the open/read/close loop with a separate mutex to maintain serialized access to the backend. Note that is is up to the pstore backend to cope if the (*write)() path is called in the middle of the read path. [ 59.691019] BUG: sleeping function called from invalid context at .../mm/slub.c:847 [ 59.691019] in_atomic(): 0, irqs_disabled(): 1, pid: 1819, name: mount [ 59.691019] Pid: 1819, comm: mount Not tainted 3.0.8 #1 [ 59.691019] Call Trace: [ 59.691019] [<810252d5>] __might_sleep+0xc3/0xca [ 59.691019] [<810a26e6>] kmem_cache_alloc+0x32/0xf3 [ 59.691019] [<810b53ac>] ? __d_lookup_rcu+0x6f/0xf4 [ 59.691019] [<810b68b1>] alloc_inode+0x2a/0x64 [ 59.691019] [<810b6903>] new_inode+0x18/0x43 [ 59.691019] [<81142447>] pstore_get_inode.isra.1+0x11/0x98 [ 59.691019] [<81142623>] pstore_mkfile+0xae/0x26f [ 59.691019] [<810a2a66>] ? kmem_cache_free+0x19/0xb1 [ 59.691019] [<8116c821>] ? ida_get_new_above+0x140/0x158 [ 59.691019] [<811708ea>] ? __init_rwsem+0x1e/0x2c [ 59.691019] [<810b67e8>] ? inode_init_always+0x111/0x1b0 [ 59.691019] [<8102127e>] ? should_resched+0xd/0x27 [ 59.691019] [<8137977f>] ? _cond_resched+0xd/0x21 [ 59.691019] [<81142abf>] pstore_get_records+0x52/0xa7 [ 59.691019] [<8114254b>] pstore_fill_super+0x7d/0x91 [ 59.691019] [<810a7ff5>] mount_single+0x46/0x82 [ 59.691019] [<8114231a>] pstore_mount+0x15/0x17 [ 59.691019] [<811424ce>] ? pstore_get_inode.isra.1+0x98/0x98 [ 59.691019] [<810a8199>] mount_fs+0x5a/0x12d [ 59.691019] [<810b9174>] ? alloc_vfsmnt+0xa4/0x14a [ 59.691019] [<810b9474>] vfs_kern_mount+0x4f/0x7d [ 59.691019] [<810b9d7e>] do_kern_mount+0x34/0xb2 [ 59.691019] [<810bb15f>] do_mount+0x5fc/0x64a [ 59.691019] [<810912fb>] ? strndup_user+0x2e/0x3f [ 59.691019] [<810bb3cb>] sys_mount+0x66/0x99 [ 59.691019] [<8137b537>] sysenter_do_call+0x12/0x26 Signed-off-by: Kees Cook <[email protected]> Signed-off-by: Tony Luck <[email protected]>
2011-11-17drm, i915: Fix memory leak in i915_gem_busy_ioctl().Rakib Mullick1-2/+4
A call to i915_add_request() has been made in function i915_gem_busy_ioctl(). i915_add_request can fail, so in it's exit path previously allocated memory needs to be freed. Signed-off-by: Rakib Mullick <[email protected]> Reviewed-by: Keith Packard <[email protected]> Signed-off-by: Keith Packard <[email protected]>
2011-11-17PM / shmobile: Fix build of sh7372_pm_init() for CONFIG_PM unsetRafael J. Wysocki1-5/+14
Fix build regression introduced by commit 056879d2f244001b2888cdc8cf (ARM: mach-shmobile: sh7372 A3SP no_suspend_console fix) by moving the intialization of the A3SP domain to a separate function and providing an empty definition of it for CONFIG_PM unset. Reported-and-tested-by: Guennadi Liakhovetski <[email protected]> Signed-off-by: Rafael J. Wysocki <[email protected]>
2011-11-17PM Sleep: Do not extend wakeup paths to devices with ignore_children setRafael J. Wysocki4-8/+8
Commit 4ca46ff3e0d8c234cb40ebb6457653b59584426c (PM / Sleep: Mark devices involved in wakeup signaling during suspend) introduced the power.wakeup_path field in struct dev_pm_info to mark devices whose children are enabled to wake up the system from sleep states, so that power domains containing the parents that provide their children with wakeup power and/or relay their wakeup signals are not turned off. Unfortunately, that introduced a PM regression on SH7372 whose power consumption in the system "memory sleep" state increased as a result of it, because it prevented the power domain containing the I2C controller from being turned off when some children of that controller were enabled to wake up the system, although the controller was not necessary for them to signal wakeup. To fix this issue use the observation that devices whose power.ignore_children flag is set for runtime PM should be treated analogously during system suspend. Namely, they shouldn't be included in wakeup paths going through their children. Since the SH7372 I2C controller's power.ignore_children flag is set, doing so will restore the previous behavior of that SOC. Signed-off-by: Rafael J. Wysocki <[email protected]> Acked-by: Greg Kroah-Hartman <[email protected]>
2011-11-17p54spi: Fix workqueue deadlockMichael Büsch1-2/+2
priv->work must not be synced while priv->mutex is locked, because the mutex is taken in the work handler. Move cancel_work_sync down to after the device shutdown code. This is safe, because the work handler checks fw_state and bails out early in case of a race. Signed-off-by: Michael Buesch <[email protected]> Cc: <[email protected]> Acked-by: Christian Lamparter <[email protected]> Signed-off-by: John W. Linville <[email protected]>
2011-11-17p54spi: Add missing spin_lock_initMichael Büsch1-0/+1
The tx_lock is not initialized properly. Add spin_lock_init(). Signed-off-by: Michael Buesch <[email protected]> Cc: <[email protected]> Acked-by: Christian Lamparter <[email protected]> Signed-off-by: John W. Linville <[email protected]>
2011-11-17rt2x00: Fix efuse EEPROM reading on PPC32.Gertjan van Wingerde1-1/+1
Fix __le32 to __le16 conversion of the first word of an 8-word block of EEPROM read via the efuse method. Reported-and-tested-by: Ingvar Hagelund <[email protected]> Signed-off-by: Gertjan van Wingerde <[email protected]> CC: <[email protected]> Acked-by: Helmut Schaa <[email protected]> Acked-by: Ivo van Doorn <[email protected]> Signed-off-by: John W. Linville <[email protected]>
2011-11-17rt2x00: handle spurious pci interruptsStanislaw Gruszka3-3/+3
We have documented case of very bad performance issue on rt2800pci device, because it generate spurious interrupt, what cause irq line is disabled: https://bugzilla.redhat.com/show_bug.cgi?id=658451 We already address that problem in separate patch by returning IRQ_HANDLED from interrupt handler. We think similar fix is needed for other rt2x00 PCI devices, because users report performance problems on these devices too. Cc: [email protected] Signed-off-by: Stanislaw Gruszka <[email protected]> Acked-by: Ivo van Doorn <[email protected]> Signed-off-by: John W. Linville <[email protected]>
2011-11-17rt2800pci: handle spurious interruptsStanislaw Gruszka1-1/+6
Some devices may generate spurious interrupts, we have to handle them otherwise interrupt line will be disabled with below message and driver will not work: [ 2052.114334] irq 17: nobody cared (try booting with the "irqpoll" option) [ 2052.114339] Pid: 0, comm: swapper Tainted: P 2.6.35.6-48.fc14.x86_64 #1 [ 2052.114341] Call Trace: [ 2052.114342] <IRQ> [<ffffffff810a6e2b>] __report_bad_irq.clone.1+0x3d/0x8b [ 2052.114349] [<ffffffff810a6f93>] note_interrupt+0x11a/0x17f [ 2052.114352] [<ffffffff810a7a73>] handle_fasteoi_irq+0xa8/0xce [ 2052.114355] [<ffffffff8100c2ea>] handle_irq+0x88/0x90 [ 2052.114357] [<ffffffff8146f034>] do_IRQ+0x5c/0xb4 [ 2052.114360] [<ffffffff81469593>] ret_from_intr+0x0/0x11 [ 2052.114361] <EOI> [<ffffffff8102b7f9>] ? native_safe_halt+0xb/0xd [ 2052.114366] [<ffffffff81010f03>] ? need_resched+0x23/0x2d [ 2052.114367] [<ffffffff8101102a>] default_idle+0x34/0x4f [ 2052.114370] [<ffffffff81008325>] cpu_idle+0xaa/0xcc [ 2052.114373] [<ffffffff81461f2a>] start_secondary+0x24d/0x28e [ 2052.114374] handlers: [ 2052.114375] [<ffffffff81332944>] (usb_hcd_irq+0x0/0x7c) [ 2052.114378] [<ffffffffa00697da>] (rt2800pci_interrupt+0x0/0x18d [rt2800pci]) [ 2052.114384] Disabling IRQ #17 Resolve: https://bugzilla.redhat.com/show_bug.cgi?id=658451 Reported-and-tested-by: Amir Hedayaty <[email protected]> Cc: [email protected] Signed-off-by: Stanislaw Gruszka <[email protected]> Acked-by: Ivo van Doorn <[email protected]> Signed-off-by: John W. Linville <[email protected]>
2011-11-17TTY: ldisc, wait for ldisc infinitely in hangupJiri Slaby1-2/+17
For /dev/console case, we do not kill all ldisc users. It's due to redirected_tty_write test in __tty_hangup. In that case there still might be a process waiting e.g. in n_tty_read for input. We wait for such processes to disappear. The problem is that we use a timeout. After this timeout, we continue closing the ldisc and start freeing tty resources. It obviously leads to crashes when the other process is woken. So to fix this, we wait infinitely before reiniting the ldisc. (The tiocsetd remains untouched -- times out after 5s.) This is nicely reproducible with this run from shell: exec 0<>/dev/console 1<>/dev/console 2<>/dev/console and stopping a getty like: systemctl stop [email protected] The crash proper may be produced only under load or with constified timing the same as for 92f6fa09b. Signed-off-by: Jiri Slaby <[email protected]> Cc: Dave Young <[email protected]> Cc: Dave Jones <[email protected]> Cc: Ben Hutchings <[email protected]> Cc: Dmitriy Matrosov <[email protected]> Cc: Alan Cox <[email protected]> Cc: stable <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]>
2011-11-17TTY: ldisc, move wait idle to callerJiri Slaby1-2/+2
It is the only place where reinit is called from. And we really need to wait for the old ldisc to go once. Actually this is the place where the waiting originally was (before removed and re-added later). This will make the fix in the following patch easier to implement. Signed-off-by: Jiri Slaby <[email protected]> Cc: Dave Young <[email protected]> Cc: Dave Jones <[email protected]> Cc: Ben Hutchings <[email protected]> Cc: Dmitriy Matrosov <[email protected]> Cc: Alan Cox <[email protected]> Cc: stable <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]>
2011-11-17TTY: ldisc, allow waiting for ldisc arbitrarily longJiri Slaby1-5/+6
To fix a nasty bug in ldisc hup vs. reinit we need to wait infinitely long for ldisc to be gone. So here we add a parameter to tty_ldisc_wait_idle to allow that. This is only a preparation for the real fix which is done in the following patches. Signed-off-by: Jiri Slaby <[email protected]> Cc: Dave Young <[email protected]> Cc: Dave Jones <[email protected]> Cc: Ben Hutchings <[email protected]> Cc: Dmitriy Matrosov <[email protected]> Cc: Alan Cox <[email protected]> Cc: stable <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]>
2011-11-17Merge branch 'master' of ↵John W. Linville4-2/+23
git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless into for-davem
2011-11-17Merge git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi-rc-fixes-2.6Linus Torvalds5-6/+17
* git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi-rc-fixes-2.6: [SCSI] hpsa: Disable ASPM [SCSI] aacraid: controller hangs if kernel uses non-default ASPM policy [SCSI] mpt2sas: add missing allocation. [SCSI] Silencing 'killing requests for dead queue' [SCSI] fix WARNING: at drivers/scsi/scsi_lib.c:1704
2011-11-17Merge branch 'for-linus' of ↵Linus Torvalds7-65/+72
git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound: ALSA: hda - Fix the connection selection of ADCs on Cirrus codecs ALSA: hda - Update URLs in document ALSA: hda - move eld->spk_alloc fixup to hdmi_update_eld() ALSA: hda - delayed ELD repoll ALSA: hda - fix ELD memory leak ALSA: hda/realtek: remove redundant semicolon ALSA: hda - pwr_nids cleanup for IDT codecs
2011-11-17ARM: wire up process_vm_writev and process_vm_readv syscallsRussell King2-0/+4
These two syscalls were introduced during the last merge window. Add the entries into the ARM call tables for them. Signed-off-by: Russell King <[email protected]>
2011-11-17ASoC: wm8753: Skip noop reconfiguration of DAI modeTimo Juhani Lindfors1-0/+3
This patch makes it possible to set DAI mode to its currently applied value even if codec is active. This is necessary to allow aplay -t raw -r 44100 -f S16_LE -c 2 < /dev/urandom & alsactl store -f backup.state alsactl restore -f backup.state to work without returning errors. This patch is based on a patch sent by Klaus Kurzmann <[email protected]>. Signed-off-by: Timo Juhani Lindfors <[email protected]> Signed-off-by: Mark Brown <[email protected]> Cc: [email protected]
2011-11-17genirq: Don't allow per cpu interrupts to be suspendedMarc Zyngier1-1/+1
The power management functions related to interrupts do not know (yet) about per-cpu interrupts and end up calling the wrong low-level methods to enable/disable interrupts. This leads to all kind of interesting issues (action taken on one CPU only, updating a refcount which is not used otherwise...). The workaround for the time being is simply to flag these interrupts with IRQF_NO_SUSPEND. At least on ARM, these interrupts are actually dealt with at the architecture level. Reported-by: Santosh Shilimkar <[email protected]> Tested-by: Santosh Shilimkar <[email protected]> Signed-off-by: Marc Zyngier <[email protected]> Cc: [email protected] Link: http://lkml.kernel.org/r/[email protected] Signed-off-by: Thomas Gleixner <[email protected]>
2011-11-17ARM: perf: initialise used_mask for fake PMU during validationWill Deacon1-1/+7
When validating an event group, we call pmu->get_event_idx for each group member in order to check that the group can be scheduled as a unit on an empty PMU. As a result of 3fc2c830 ("ARM: perf: remove event limit from pmu_hw_events"), the used_mask member of struct cpu_hw_events must be setup explicitly, something which we don't do for the fake cpu_hw_events used for validation. This patch sets up an empty used_mask for the fake validation cpu_hw_events, preventing NULL deferences when trying to get the event index. Reported-by: Pawel Moll <[email protected]> Signed-off-by: Will Deacon <[email protected]>
2011-11-17Revert "KVM: PPC: Add support for explicit HIOR setting"Alexander Graf5-24/+2
This reverts commit a15bd354f083f20f257db450488db52ac27df439. It exceeded the padding on the SREGS struct, rendering the ABI backwards-incompatible. Conflicts: arch/powerpc/kvm/powerpc.c include/linux/kvm.h Signed-off-by: Avi Kivity <[email protected]>
2011-11-17KVM: VMX: Check for automatic switch msr table overflowGleb Natapov1-1/+5
Signed-off-by: Gleb Natapov <[email protected]> Signed-off-by: Avi Kivity <[email protected]>
2011-11-17KVM: VMX: Add support for guest/host-only profilingGleb Natapov1-0/+21
Support guest/host-only profiling by switch perf msrs on a guest entry if needed. Signed-off-by: Gleb Natapov <[email protected]> Signed-off-by: Avi Kivity <[email protected]>
2011-11-17KVM: VMX: add support for switching of PERF_GLOBAL_CTRLGleb Natapov1-11/+93
Some cpus have special support for switching PERF_GLOBAL_CTRL msr. Add logic to detect if such support exists and works properly and extend msr switching code to use it if available. Also extend number of generic msr switching entries to 8. Signed-off-by: Gleb Natapov <[email protected]> Signed-off-by: Avi Kivity <[email protected]>
2011-11-17KVM: s390: announce SYNC_MMUChristian Borntraeger1-0/+1
KVM on s390 always had a sync mmu. Any mapping change in userspace mapping was always reflected immediately in the guest mapping. - In older code the guest mapping was just an offset - In newer code the last level page table is shared Signed-off-by: Christian Borntraeger <[email protected]> Signed-off-by: Carsten Otte <[email protected]> Signed-off-by: Avi Kivity <[email protected]>
2011-11-17KVM: s390: Fix tprot lockingChristian Borntraeger1-2/+8
There is a potential host deadlock in the tprot intercept handling. We must not hold the mmap semaphore while resolving the guest address. If userspace is remapping, then the memory detection in the guest is broken anyway so we can safely separate the address translation from walking the vmas. Signed-off-by: Christian Borntraeger <[email protected]> Signed-off-by: Carsten Otte <[email protected]> Signed-off-by: Avi Kivity <[email protected]>
2011-11-17KVM: s390: handle SIGP sense running interceptsCornelia Huck3-0/+41
SIGP sense running may cause an intercept on higher level virtualization, so handle it by checking the CPUSTAT_RUNNING flag. Signed-off-by: Cornelia Huck <[email protected]> Signed-off-by: Carsten Otte <[email protected]> Signed-off-by: Avi Kivity <[email protected]>
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