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2010-09-27ARM: imx: change the way imx-uarts are registeredUwe Kleine-König8-79/+167
For mx1_defconfig this yields: add/remove: 1/0 grow/shrink: 1/4 up/down: 49/-108 (-59) function old new delta imx1_imx_uart_data - 48 +48 kernel_config_data 7277 7278 +1 imx_add_imx_uart_1irq 132 128 -4 imx_add_imx_uart_3irq 164 156 -8 scb9328_init 96 64 -32 mx1ads_init 220 156 -64 for mx21_defconfig this yields: add/remove: 1/0 grow/shrink: 0/3 up/down: 64/-52 (12) function old new delta imx21_imx_uart_data - 64 +64 imx_add_imx_uart_3irq 160 156 -4 imx_add_imx_uart_1irq 140 136 -4 mx21ads_board_init 220 176 -44 for a random mx25 config this yields: add/remove: 1/0 grow/shrink: 0/5 up/down: 80/-56 (24) function old new delta imx25_imx_uart_data - 80 +80 imx_add_imx_uart_3irq 160 156 -4 imx_add_imx_uart_1irq 140 136 -4 mx25pdk_init 288 272 -16 eukrea_mbimxsd_baseboard_init 272 256 -16 eukrea_cpuimx25_init 252 236 -16 for mx27_defconfig this yields: add/remove: 1/0 grow/shrink: 0/10 up/down: 96/-280 (-184) function old new delta imx27_imx_uart_data - 96 +96 imx_add_imx_uart_3irq 160 156 -4 imx_add_imx_uart_1irq 140 136 -4 pca100_init 560 544 -16 mx27pdk_init 112 96 -16 mx27lite_init 92 76 -16 eukrea_cpuimx27_init 332 316 -16 pcm038_init 388 348 -40 mxt_td60_board_init 320 280 -40 eukrea_mbimx27_baseboard_init 476 436 -40 mx27ads_board_init 368 280 -88 and finally for mx3_defconfig: add/remove: 2/0 grow/shrink: 0/9 up/down: 128/-344 (-216) function old new delta imx31_imx_uart_data - 80 +80 imx35_imx_uart_data - 48 +48 imx_add_imx_uart_1irq 132 128 -4 imx_add_imx_uart_3irq 164 152 -12 mx31moboard_devboard_init 360 344 -16 mx31lite_db_init 176 160 -16 mx31moboard_smartbot_init 384 360 -24 kzm_board_init 232 208 -24 armadillo5x0_init 392 364 -28 mx31lilly_db_init 248 208 -40 mxc_board_init 3760 3580 -180 Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
2010-09-27ARM: imx: change the way spi-imx devices are registeredUwe Kleine-König7-37/+103
Group soc specific data in a global struct instead of repeating it for each call to imxXX_add_spi_imxX. The structs holding the actual data are placed in .init.constdata and so don't do much harm. Compared to the previous approach this reduces code size to call imx_add_spi_imx. Acked-by: Jason Wang <jason77.wang@gmail.com> Acked-by: Grant Likely <grant.likely@secretlab.ca> Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
2010-09-27ARM: mx51: use IMX_IO_ADDRESS to define MX51_IO_ADDRESSUwe Kleine-König1-42/+11
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
2010-09-27ARM: mx51: fix naming of spi related definesUwe Kleine-König1-6/+6
The names used now match the processor's reference manual. Also remove MXC from the interrupt defines to match the other imx platforms. Acked-by: Wolfram Sang <w.sang@pengutronix.de> Acked-by: Jason Wang <jason77.wang@gmail.com> Acked-by: Grant Likely <grant.likely@secretlab.ca> Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
2010-09-27ARM: mx51: clean up mx51 headerUwe Kleine-König1-308/+300
This makes the header more look like the other ones, i.e. - sort #defines by value - use lowercase hex constants - use a consistently named header guard Acked-by: Jason Wang <jason77.wang@gmail.com> Acked-by: Grant Likely <grant.likely@secretlab.ca> Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
2010-09-27ARM: mx51_defconfig: add new boards MACH_MX51_3DS and MACH_EUKREA_CPUIMX51Uwe Kleine-König1-6/+3
Further remove FIXED_PHY as it breaks the ethernet. VGA_CONSOLE isn't selectable anymore since fb78b51cb11e. EXT3_DEFAULTS_TO_ORDERED defaults to y since aa32a796389b. INOTIFY is gone since 2dfc1cae4c42. CONFIG_DETECT_SOFTLOCKUP is gone since e16bb1d7fe07. Enable TMPFS for udev. KEYS is selected by NFS_USE_KERNEL_DNS Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
2010-09-27ARM: remove mx31pdk_defconfigUwe Kleine-König1-44/+0
This machine is enabled in mx3_defconfig and so mx31pdk_defconfig isn't really useful. Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
2010-09-27ARM: mx3_defconfig: add new machine MACH_EUKREA_CPUIMX35Uwe Kleine-König1-1/+1
Furthermore INOTIFY is gone since 2dfc1ca (inotify: remove inotify in kernel interface) Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
2010-09-27ARM: mx27_defconfig: enable switches used in mx27 codeUwe Kleine-König1-3/+12
- enable all mx27 machines (MACH_CPUIMX27, MACH_IMX27_VISSTRIM_M10, MACH_PCA100, MACH_MXT_TD60) including optional features for CPUIMX27 - eukrea_mbimx27-baseboard.c uses TOUCHSCREEN_ADS7846 - mach-cpuimx27.c uses SERIAL_8250 - several machines make use of SPI_IMX (selects SPI_BITBANG) - drop VGA_CONSOLE as this isn't selectable anymore since fb78b51cb11e - several machines make use of USB_ULPI (depends on USB, but don't enable USB_DEVICE_CLASS as it's deprecated) Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
2010-09-27ARM: mx5/mx51_babbage: don't use PHYS_OFFSETUwe Kleine-König1-1/+1
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
2010-09-27ARM: mx5/mx51_babbage: fix compiler warningsSascha Hauer1-2/+2
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
2010-09-27ARM: imx: ehci: use void __iomem * to hold i/o addressesUwe Kleine-König1-2/+2
This fixes: arch/arm/plat-mxc/ehci.c: In function 'mxc_initialize_usb_hw': arch/arm/plat-mxc/ehci.c:260: warning: assignment makes integer from pointer without a cast arch/arm/plat-mxc/ehci.c:263: warning: assignment makes integer from pointer without a cast arch/arm/plat-mxc/ehci.c:270: warning: assignment makes integer from pointer without a cast Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
2010-09-27ARM: imx: remove #ifdefery for unmerged flexcan driverUwe Kleine-König2-16/+1
The flexcan driver was merged as e955cead. Cc: Sascha Hauer <s.hauer@pengutronix.de> Acked-by: Marc Kleine-Budde <mkl@pengutronix.de> Cc: Wolfgang Grandegger <wg@grandegger.com> Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
2010-09-27ARM: mx5/mx51_babbage: Add FEC supportFabio Estevam2-1/+66
Tested it by booting a rootfs via NFS. Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
2010-09-27ARM: mx3/imx35: Add EPIT supportSascha Hauer2-4/+10
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> Signed-off-by: Michael Grzeschik <m.grzeschik@pengutronix.de> Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
2010-09-27ARM: imx: Add EPIT supportSascha Hauer4-0/+256
The Enhanced Periodic Interrupt Timer (EPIT) is found on newer i.MX SoCs and can be used as an alternative system timer. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> Signed-off-by: Michael Grzeschik <m.grzeschik@pengutronix.de> Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
2010-09-27ARM: mx3/mx35_3ds: add usb host2 supportMarc Kleine-Budde1-0/+13
we still have to toggle two pins on the mc9sdz60: /* MUX3_CTR to be low for USB Host2 DP&DM */ pmic_gpio_set_bit_val(MCU_GPIO_REG_GPIO_CONTROL_2, 6, 0); /* CAN_PWDN to be high for USB Host2 Power&OC */ pmic_gpio_set_bit_val(MCU_GPIO_REG_GPIO_CONTROL_2, 1, 1); until we've a proper driver for the mx9sdz60 in linux we'll do this in barebox (a.k.a. u-boot-v2) Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de> Signed-off-by: Michael Grzeschik <m.grzeschik@pengutronix.de> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
2010-09-27ARM: mx3/mx35_3ds: rename usb otg platform data variable nameMarc Kleine-Budde1-2/+2
Rename the variable holding the usb otg platform data to avoid clash with usb host platform data variable. usb_pdata -> usb_otg_pdata Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
2010-09-27ARM: mx3/mx35_3ds: add NAND flashMarc Kleine-Budde2-0/+9
The mx35_3ds comes with 2 GiByte NAND flash. This adds the corresponding platform device. Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de> Signed-off-by: Michael Grzeschik <m.grzeschik@pengutronix.de> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
2010-09-27ARM: mx3/mx35_3ds: add physmap-flash NOR at CS0Marc Kleine-Budde1-0/+24
The mx35_3ds comes with 64 MiByte for NOR flash at CS0, add physmap-flash platform device for it. Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de> Signed-off-by: Michael Grzeschik <m.grzeschik@pengutronix.de> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
2010-09-27ARM: imx: Add support for Vista Silicon Visstrim_m10 boardJavier Martin3-0/+273
Vista Silicon Visstrim_m10 i.MX27 based board is used as multimedia streaming server, access control and other custom applications. Signed-off-by: Javier Martin <javier.martin@vista-silicon.com> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
2010-09-13Linux 2.6.36-rc4v2.6.36-rc4Linus Torvalds1-1/+1
2010-09-12docbook: skip files with no docs since they generate scary warningsRandy Dunlap2-2/+0
Fix docbook templates that reference files that do not contain the expected kernel-doc notation. Fixes these warnings: Warning(arch/x86/include/asm/unaligned.h): no structured comments found Warning(lib/vsprintf.c): no structured comments found These cause errors in the generated html output, like below, so drop these lines. Name arch/x86/include/asm/unaligned.h - Document generation inconsistency Oops Warning The template for this document tried to insert the structured comment from the file arch/x86/include/asm/unaligned.h at this point, but none was found. This dummy section is inserted to allow generation to continue. Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-09-12docbook: warn on unused doc entriesJohannes Berg3-3/+183
When you don't use !E or !I but only !F, then it's very easy to miss including some functions, structs etc. in documentation. To help finding which ones were missed, allow printing out the unused ones as warnings. For example, using this on mac80211 yields a lot of warnings like this: Warning: didn't use docs for DOC: mac80211 workqueue Warning: didn't use docs for ieee80211_max_queues Warning: didn't use docs for ieee80211_bss_change Warning: didn't use docs for ieee80211_bss_conf when generating the documentation for it. Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-09-12kernel-doc: ignore case when stripping attributesJohannes Berg1-1/+1
There are valid attributes that could have upper case letters, but we still want to remove, like for example __attribute__((aligned(NETDEV_ALIGN))) as encountered in the wireless code. Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-09-12Merge branch 'pm-fixes' of ↵Linus Torvalds3-21/+69
git://git.kernel.org/pub/scm/linux/kernel/git/rafael/suspend-2.6 * 'pm-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/suspend-2.6: PM / Hibernate: Avoid hitting OOM during preallocation of memory PM QoS: Correct pr_debug() misuse and improve parameter checks PM: Prevent waiting forever on asynchronous resume after failing suspend
2010-09-11Merge git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi-rc-fixes-2.6Linus Torvalds18-70/+262
* git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi-rc-fixes-2.6: [SCSI] fix use-after-free in scsi_init_io() [SCSI] sd: fix medium-removal bug [SCSI] qla2xxx: Update version number to 8.03.04-k0. [SCSI] qla2xxx: Check for empty slot in request queue before posting Command type 6 request. [SCSI] qla2xxx: Cover UNDERRUN case where SCSI status is set. [SCSI] qla2xxx: Correctly set fw hung and complete only waiting mbx. [SCSI] qla2xxx: Reset seconds_since_last_heartbeat correctly. [SCSI] qla2xxx: make rport deletions explicit during vport removal [SCSI] qla2xxx: Fix vport delete issues [SCSI] sd, sym53c8xx: Remove warnings after vsprintf %pV introducation. [SCSI] Fix warning: zero-length gnu_printf format string [SCSI] hpsa: disable doorbell reset on reset_devices [SCSI] be2iscsi: Fix for Login failure [SCSI] fix bio.bi_rw handling
2010-09-11PM / Hibernate: Avoid hitting OOM during preallocation of memoryRafael J. Wysocki1-20/+65
There is a problem in hibernate_preallocate_memory() that it calls preallocate_image_memory() with an argument that may be greater than the total number of available non-highmem memory pages. If that's the case, the OOM condition is guaranteed to trigger, which in turn can cause significant slowdown to occur during hibernation. To avoid that, make preallocate_image_memory() adjust its argument before calling preallocate_image_pages(), so that the total number of saveable non-highem pages left is not less than the minimum size of a hibernation image. Change hibernate_preallocate_memory() to try to allocate from highmem if the number of pages allocated by preallocate_image_memory() is too low. Modify free_unnecessary_pages() to take all possible memory allocation patterns into account. Reported-by: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com> Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl> Tested-by: M. Vefa Bicakci <bicave@superonline.com>
2010-09-11Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6Linus Torvalds37-296/+376
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6: (28 commits) ipheth: remove incorrect devtype to WWAN MAINTAINERS: Add CAIF sctp: fix test for end of loop KS8851: Correct RX packet allocation udp: add rehash on connect() net: blackhole route should always be recalculated ipv4: Suppress lockdep-RCU false positive in FIB trie (3) niu: Fix kernel buffer overflow for ETHTOOL_GRXCLSRLALL ipvs: fix active FTP gro: Re-fix different skb headrooms via-velocity: Turn scatter-gather support back off. ipv4: Fix reverse path filtering with multipath routing. UNIX: Do not loop forever at unix_autobind(). PATCH: b44 Handle RX FIFO overflow better (simplified) irda: off by one 3c59x: Fix deadlock in vortex_error() netfilter: discard overlapping IPv6 fragment ipv6: discard overlapping fragment net: fix tx queue selection for bridged devices implementing select_queue bonding: Fix jiffies overflow problems (again) ... Fix up trivial conflicts due to the same cgroup API thinko fix going through both Andrew and the networking tree. However, there were small differences between the two, with Andrew's version generally being the nicer one, and the one I merged first. So pick that one. Conflicts in: include/linux/cgroup.h and kernel/cgroup.c
2010-09-11Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc-2.6Linus Torvalds3-6/+1
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc-2.6: sparc: Kill all BKL usage.
2010-09-11Merge branch 'sched-fixes-for-linus' of ↵Linus Torvalds2-2/+6
git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip * 'sched-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: x86, tsc: Fix a preemption leak in restore_sched_clock_state() sched: Move sched_avg_update() to update_cpu_load()
2010-09-11x86, tsc: Fix a preemption leak in restore_sched_clock_state()Peter Zijlstra1-1/+1
Doh, a real life genuine preemption leak.. This caused a suspend failure. Reported-bisected-and-tested-by-the-invaluable: Jeff Chua <jeff.chua.linux@gmail.com> Acked-by: Suresh Siddha <suresh.b.siddha@intel.com> Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Rafael J. Wysocki <rjw@sisk.pl> Cc: Nico Schottelius <nico-linux-20100709@schottelius.org> Cc: Jesse Barnes <jbarnes@virtuousgeek.org> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Florian Pritz <flo@xssn.at> Cc: Suresh Siddha <suresh.b.siddha@intel.com> Cc: Len Brown <lenb@kernel.org> Cc: <stable@kernel.org> # Greg, please apply after: cd7240c ("x86, tsc, sched: Recompute cyc2ns_offset's during resume from") sleep states LKML-Reference: <1284150773.402.122.camel@laptop> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2010-09-11Merge branch 'drm-intel-fixes' of ↵Linus Torvalds4-24/+31
git://git.kernel.org/pub/scm/linux/kernel/git/ickle/drm-intel * 'drm-intel-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/ickle/drm-intel: drm/i915: don't enable self-refresh on Ironlake drm/i915: Double check that the wait_request is not pending before warning Revert "drm/i915: Warn if we run out of FIFO space for a mode" Revert "drm/i915: Allow LVDS on pipe A on gen4+" Revert "drm/i915: Enable RC6 on Ironlake."
2010-09-11Merge branch 'for-linus' of git://oss.sgi.com/xfs/xfsLinus Torvalds2-1/+4
* 'for-linus' of git://oss.sgi.com/xfs/xfs: xfs: log IO completion workqueue is a high priority queue xfs: prevent reading uninitialized stack memory
2010-09-11x86, tsc: Fix a preemption leak in restore_sched_clock_state()Peter Zijlstra1-1/+1
A real life genuine preemption leak.. Reported-and-tested-by: Jeff Chua <jeff.chua.linux@gmail.com> Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl> Acked-by: Suresh Siddha <suresh.b.siddha@intel.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-09-11PM QoS: Correct pr_debug() misuse and improve parameter checksmark gross1-1/+3
Correct some pr_debug() misuse and add a stronger parameter check to pm_qos_write() for the ASCII hex value case. Thanks to Dan Carpenter for pointing out the problem! Signed-off-by: mark gross <markgross@thegnar.org> Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
2010-09-10xfs: log IO completion workqueue is a high priority queueDave Chinner1-1/+2
The workqueue implementation in 2.6.36-rcX has changed, resulting in the workqueues no longer having dedicated threads for work processing. This has caused severe livelocks under heavy parallel create workloads because the log IO completions have been getting held up behind metadata IO completions. Hence log commits would stall, memory allocation would stall because pages could not be cleaned, and lock contention on the AIL during inode IO completion processing was being seen to slow everything down even further. By making the log Io completion workqueue a high priority workqueue, they are queued ahead of all data/metadata IO completions and processed before the data/metadata completions. Hence the log never gets stalled, and operations needed to clean memory can continue as quickly as possible. This avoids the livelock conditions and allos the system to keep running under heavy load as per normal. Signed-off-by: Dave Chinner <dchinner@redhat.com> Reviewed-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Alex Elder <aelder@sgi.com>
2010-09-10execve: make responsive to SIGKILL with large argumentsRoland McGrath1-0/+7
An execve with a very large total of argument/environment strings can take a really long time in the execve system call. It runs uninterruptibly to count and copy all the strings. This change makes it abort the exec quickly if sent a SIGKILL. Note that this is the conservative change, to interrupt only for SIGKILL, by using fatal_signal_pending(). It would be perfectly correct semantics to let any signal interrupt the string-copying in execve, i.e. use signal_pending() instead of fatal_signal_pending(). We'll save that change for later, since it could have user-visible consequences, such as having a timer set too quickly make it so that an execve can never complete, though it always happened to work before. Signed-off-by: Roland McGrath <roland@redhat.com> Reviewed-by: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-09-10execve: improve interactivity with large argumentsRoland McGrath1-0/+2
This adds a preemption point during the copying of the argument and environment strings for execve, in copy_strings(). There is already a preemption point in the count() loop, so this doesn't add any new points in the abstract sense. When the total argument+environment strings are very large, the time spent copying them can be much more than a normal user time slice. So this change improves the interactivity of the rest of the system when one process is doing an execve with very large arguments. Signed-off-by: Roland McGrath <roland@redhat.com> Reviewed-by: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-09-10setup_arg_pages: diagnose excessive argument sizeRoland McGrath1-0/+5
The CONFIG_STACK_GROWSDOWN variant of setup_arg_pages() does not check the size of the argument/environment area on the stack. When it is unworkably large, shift_arg_pages() hits its BUG_ON. This is exploitable with a very large RLIMIT_STACK limit, to create a crash pretty easily. Check that the initial stack is not too large to make it possible to map in any executable. We're not checking that the actual executable (or intepreter, for binfmt_elf) will fit. So those mappings might clobber part of the initial stack mapping. But that is just userland lossage that userland made happen, not a kernel problem. Signed-off-by: Roland McGrath <roland@redhat.com> Reviewed-by: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-09-10Merge branch 'kvm-updates/2.6.36' of git://git.kernel.org/pub/scm/virt/kvm/kvmLinus Torvalds5-10/+16
* 'kvm-updates/2.6.36' of git://git.kernel.org/pub/scm/virt/kvm/kvm: KVM: x86: Perform hardware_enable in CPU_STARTING callback KVM: i8259: fix migration KVM: fix i8259 oops when no vcpus are online KVM: x86 emulator: fix regression with cmpxchg8b on i386 hosts
2010-09-10Merge branch 'perf-fixes-for-linus' of ↵Linus Torvalds8-36/+73
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: tracing: t_start: reset FTRACE_ITER_HASH in case of seek/pread perf symbols: Fix multiple initialization of symbol system perf: Fix CPU hotplug perf, trace: Fix module leak tracing/kprobe: Fix handling of C-unlike argument names tracing/kprobes: Fix handling of argument names perf probe: Fix handling of arguments names perf probe: Fix return probe support tracing/kprobe: Fix a memory leak in error case tracing: Do not allow llseek to set_ftrace_filter
2010-09-10KEYS: Fix bug in keyctl_session_to_parent() if parent has no session keyringDavid Howells1-1/+2
Fix a bug in keyctl_session_to_parent() whereby it tries to check the ownership of the parent process's session keyring whether or not the parent has a session keyring [CVE-2010-2960]. This results in the following oops: BUG: unable to handle kernel NULL pointer dereference at 00000000000000a0 IP: [<ffffffff811ae4dd>] keyctl_session_to_parent+0x251/0x443 ... Call Trace: [<ffffffff811ae2f3>] ? keyctl_session_to_parent+0x67/0x443 [<ffffffff8109d286>] ? __do_fault+0x24b/0x3d0 [<ffffffff811af98c>] sys_keyctl+0xb4/0xb8 [<ffffffff81001eab>] system_call_fastpath+0x16/0x1b if the parent process has no session keyring. If the system is using pam_keyinit then it mostly protected against this as all processes derived from a login will have inherited the session keyring created by pam_keyinit during the log in procedure. To test this, pam_keyinit calls need to be commented out in /etc/pam.d/. Reported-by: Tavis Ormandy <taviso@cmpxchg8b.com> Signed-off-by: David Howells <dhowells@redhat.com> Acked-by: Tavis Ormandy <taviso@cmpxchg8b.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-09-10KEYS: Fix RCU no-lock warning in keyctl_session_to_parent()David Howells1-0/+3
There's an protected access to the parent process's credentials in the middle of keyctl_session_to_parent(). This results in the following RCU warning: =================================================== [ INFO: suspicious rcu_dereference_check() usage. ] --------------------------------------------------- security/keys/keyctl.c:1291 invoked rcu_dereference_check() without protection! other info that might help us debug this: rcu_scheduler_active = 1, debug_locks = 0 1 lock held by keyctl-session-/2137: #0: (tasklist_lock){.+.+..}, at: [<ffffffff811ae2ec>] keyctl_session_to_parent+0x60/0x236 stack backtrace: Pid: 2137, comm: keyctl-session- Not tainted 2.6.36-rc2-cachefs+ #1 Call Trace: [<ffffffff8105606a>] lockdep_rcu_dereference+0xaa/0xb3 [<ffffffff811ae379>] keyctl_session_to_parent+0xed/0x236 [<ffffffff811af77e>] sys_keyctl+0xb4/0xb6 [<ffffffff81001eab>] system_call_fastpath+0x16/0x1b The code should take the RCU read lock to make sure the parents credentials don't go away, even though it's holding a spinlock and has IRQ disabled. Signed-off-by: David Howells <dhowells@redhat.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-09-10Merge branch 'for-linus' of git://git.kernel.dk/linux-2.6-blockLinus Torvalds17-46/+238
* 'for-linus' of git://git.kernel.dk/linux-2.6-block: block: Range check cpu in blk_cpu_to_group scatterlist: prevent invalid free when alloc fails writeback: Fix lost wake-up shutting down writeback thread writeback: do not lose wakeup events when forking bdi threads cciss: fix reporting of max queue depth since init block: switch s390 tape_block and mg_disk to elevator_change() block: add function call to switch the IO scheduler from a driver fs/bio-integrity.c: return -ENOMEM on kmalloc failure bio-integrity.c: remove dependency on __GFP_NOFAIL BLOCK: fix bio.bi_rw handling block: put dev->kobj in blk_register_queue fail path cciss: handle allocation failure cfq-iosched: Documentation help for new tunables cfq-iosched: blktrace print per slice sector stats cfq-iosched: Implement tunable group_idle cfq-iosched: Do group share accounting in IOPS when slice_idle=0 cfq-iosched: Do not idle if slice_idle=0 cciss: disable doorbell reset on reset_devices blkio: Fix return code for mkdir calls
2010-09-10Merge branch 'at91-fixes-for-linus' of git://github.com/at91linux/linux-2.6-at91Linus Torvalds4-19/+36
* 'at91-fixes-for-linus' of git://github.com/at91linux/linux-2.6-at91: AT91: at91sam9261ek: remove C99 comments but keep information AT91: at91sam9261ek board: remove warnings related to use of SPI or SD/MMC AT91: dm9000 initialization update AT91: SAM9G45 - add a separate clock entry for every single TC block AT91: clock: peripheral clocks can have other parent than mck AT91: change dma resource index
2010-09-10Merge branch 'for-linus' of ↵Linus Torvalds18-40/+204
git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound-2.6 * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound-2.6: ALSA: rawmidi: fix the get next midi device ioctl ALSA: hda - Fix wrong HP pin detection in snd_hda_parse_pin_def_config() ALSA: seq/oss - Fix double-free at error path of snd_seq_oss_open() ALSA: msnd-classic: Fix invalid cfg parameter ALSA: hda - Enable PC-beep for EeePC with ALC269 codec ALSA: hda - Add errata initverb sequence for CS42xx codecs ALSA: usb - Release capture substream URBs properly ALSA: virtuoso: fix setting of Xonar DS line-in/mic-in controls ALSA: virtuoso: work around missing reset in the Xonar DS Windows driver ALSA: hda - Add quirk for Lenovo T400s ALSA: usb-audio: fix detection of vendor-specific device protocol settings ALSA: usb-audio: Assume first control interface is for audio ALSA: hda - Add a new hp-laptop model for Conexant 5066, tested on HP G60
2010-09-10drm/i915: don't enable self-refresh on IronlakeJesse Barnes2-2/+12
We don't know how to enable it safely, especially as outputs turn on and off. When disabling LP1 we also need to make sure LP2 and 3 are already disabled. Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=29173 Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=29082 Reported-by: Chris Lord <chris@linux.intel.com> Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org> Tested-by: Daniel Vetter <daniel.vetter@ffwll.ch> Cc: stable@kernel.org Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
2010-09-10xfs: prevent reading uninitialized stack memoryDan Rosenberg1-0/+2
The XFS_IOC_FSGETXATTR ioctl allows unprivileged users to read 12 bytes of uninitialized stack memory, because the fsxattr struct declared on the stack in xfs_ioc_fsgetxattr() does not alter (or zero) the 12-byte fsx_pad member before copying it back to the user. This patch takes care of it. Signed-off-by: Dan Rosenberg <dan.j.rosenberg@gmail.com> Reviewed-by: Eric Sandeen <sandeen@redhat.com> Signed-off-by: Alex Elder <aelder@sgi.com>
2010-09-10AT91: at91sam9261ek: remove C99 comments but keep informationNicolas Ferre1-4/+2
Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>