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2012-10-22drm/nouveau/bios: fetch full 4KiB block to determine ACPI ROM image sizeBen Skeggs1-3/+7
Buggy firmware leads to bad things happening otherwise.. Signed-off-by: Ben Skeggs <[email protected]>
2012-10-22drm/nouveau: validate vbios sizeMarcin Slusarz1-3/+13
Without checking, we could detect vbios size as 0, allocate 0-byte array (kmalloc returns invalid pointer for such allocation) and crash in nouveau_bios_score while checking for vbios signature. Reported-by: Heinz Diehl <[email protected]> Signed-off-by: Marcin Slusarz <[email protected]> Signed-off-by: Ben Skeggs <[email protected]>
2012-10-22drm/nouveau: warn when trying to free mm which is still in useMarcin Slusarz1-1/+1
Signed-off-by: Marcin Slusarz <[email protected]> Signed-off-by: Ben Skeggs <[email protected]>
2012-10-22drm/nouveau: fix nouveau_mm/nouveau_mm_node leakMarcin Slusarz1-0/+5
v2: use already existing parent Signed-off-by: Marcin Slusarz <[email protected]> Signed-off-by: Ben Skeggs <[email protected]>
2012-10-22drm/nouveau/bios: improve error handling when reading the vbios from ACPIMartin Peres1-1/+3
Reported-by: Pawel Sikora <[email protected]> Signed-off-by: Martin Peres <[email protected]> Signed-off-by: Ben Skeggs <[email protected]>
2012-10-22drm/nouveau: handle same-fb page flipsMarcin Slusarz1-5/+9
It's questionable use case, but weston/wayland already relies on this behaviour, and other drivers don't care about it, so it's a matter of compatibility. Without it, process invoking such page flip hangs in unkillable state, trying to reserve the same buffer twice. Signed-off-by: Marcin Slusarz <[email protected]> Signed-off-by: Ben Skeggs <[email protected]>
2012-10-22Merge branch 'drm-intel-fixes' of ↵Dave Airlie8-25/+80
git://people.freedesktop.org/~danvet/drm-intel into drm-fixes Daniel writes: The big thing is the disabling of the hsw support by default, cc: stable. We've aimed for basic hsw support in 3.6, but due to a few bad happenstances we've screwed up and only 3.8 will have better modeset support than vesa. To avoid yet another round of fallout from such a gaffle on for the next platform we've added a module option to disable early hw support by default. That should also give us more flexibility in bring-up. Otherwise just small fixes: - 3 fixes from Egbert for sdvo corner cases - invert-brightness quirk entry from Egbert - revert a dp link training change, it regresses some setups - and shut up a spurious WARN in our gem fault handler. - regression fix for an oops on bit17 swizzling machines, introduce in 3.7 - another no-lvds quirk * 'drm-intel-fixes' of git://people.freedesktop.org/~danvet/drm-intel: drm/i915: Initialize obj->pages before use by i915_gem_object_do_bit17_swizzle() drm/i915: Add no-lvds quirk for Supermicro X7SPA-H drm/i915: Insert i915_preliminary_hw_support variable. drm/i915: shut up spurious WARN in the gtt fault handler Revert "drm/i915: Try harder to complete DP training pattern 1" DRM/i915: Restore sdvo_flags after dtd->mode->dtd Roundrtrip. DRM/i915: Don't clone SDVO LVDS with analog. DRM/i915: Add QUIRK_INVERT_BRIGHTNESS for NCR machines. DRM/i915: Don't delete DPLL Multiplier during DAC init.
2012-10-21Merge branch 'tip/perf/urgent' of ↵Ingo Molnar1-0/+4
git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace into perf/urgent Pull ftrace ring-buffer resizing fix from Steve Rostedt. Signed-off-by: Ingo Molnar <[email protected]>
2012-10-21Documentation: Reflect the new location of the NMI watchdog infoJean Delvare1-2/+2
Commit 9919cba7 ("watchdog: Update documentation") moved the NMI watchdog documentation from nmi_watchdog.txt to lockup-watchdogs.txt. Update the index file accordingly. Signed-off-by: Jean Delvare <[email protected]> Cc: Fernando Luis Vazquez Cao <[email protected]> Cc: Randy Dunlap <[email protected]> Cc: Don Zickus <[email protected]> Link: http://lkml.kernel.org/r/[email protected] Signed-off-by: Ingo Molnar <[email protected]>
2012-10-21Merge branch 'uprobes/core' of ↵Ingo Molnar4-211/+165
git://git.kernel.org/pub/scm/linux/kernel/git/oleg/misc into perf/urgent Pull various uprobes bugfixes from Oleg Nesterov - mostly race and failure path fixes. Signed-off-by: Ingo Molnar <[email protected]>
2012-10-21Merge branch 'urgent' of ↵Ingo Molnar1-1/+1
git://git.kernel.org/pub/scm/linux/kernel/git/rric/oprofile into perf/urgent Pull event-wrapping Oprofile fix from Robert Richter. Signed-off-by: Ingo Molnar <[email protected]>
2012-10-20Linux 3.7-rc2Linus Torvalds1-1/+1
2012-10-20Merge tag 'arm64-fixes' of ↵Linus Torvalds9-45/+83
git://git.kernel.org/pub/scm/linux/kernel/git/cmarinas/linux-aarch64 Pull arm64 fixes from Catalin Marinas: "Main changes: - AArch64 Linux compilation fixes following 3.7-rc1 changes (MODULES_USE_ELF_RELA, update_vsyscall() prototype) - Unnecessary register setting in start_thread() (thanks to Al Viro) - ptrace fixes" * tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/cmarinas/linux-aarch64: arm64: fix alignment padding in assembly code arm64: ptrace: use HW_BREAKPOINT_EMPTY type for disabled breakpoints arm64: ptrace: make structure padding explicit for debug registers arm64: No need to set the x0-x2 registers in start_thread() arm64: Ignore memory blocks below PHYS_OFFSET arm64: Fix the update_vsyscall() prototype arm64: Select MODULES_USE_ELF_RELA arm64: Remove duplicate inclusion of mmu_context.h in smp.c
2012-10-20arm64: fix alignment padding in assembly codeMarc Zyngier2-1/+7
An interesting effect of using the generic version of linkage.h is that the padding is defined in terms of x86 NOPs, which can have even more interesting effects when the assembly code looks like this: ENTRY(func1) mov x0, xzr ENDPROC(func1) // fall through ENTRY(func2) mov x0, #1 ret ENDPROC(func2) Admittedly, the code is not very nice. But having code from another architecture doesn't look completely sane either. The fix is to add arm64's version of linkage.h, which causes the insertion of proper AArch64 NOPs. Signed-off-by: Marc Zyngier <[email protected]> Signed-off-by: Catalin Marinas <[email protected]>
2012-10-20perf/x86: Disable uncore on virtualized CPUsYan, Zheng1-0/+3
Initializing uncore PMU on virtualized CPU may hang the kernel. This is because kvm does not emulate the entire hardware. Thers are lots of uncore related MSRs, making kvm enumerate them all is a non-trival task. So just disable uncore on virtualized CPU. Signed-off-by: Yan, Zheng <[email protected]> Tested-by: Pekka Enberg <[email protected]> Cc: [email protected] Cc: [email protected] Cc: [email protected] Cc: [email protected] Link: http://lkml.kernel.org/r/[email protected] Signed-off-by: Ingo Molnar <[email protected]>
2012-10-19use clamp_t in UNAME26 fixKees Cook1-1/+1
The min/max call needed to have explicit types on some architectures (e.g. mn10300). Use clamp_t instead to avoid the warning: kernel/sys.c: In function 'override_release': kernel/sys.c:1287:10: warning: comparison of distinct pointer types lacks a cast [enabled by default] Reported-by: Fengguang Wu <[email protected]> Signed-off-by: Kees Cook <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2012-10-19Merge branch 'perf-urgent-for-linus' of ↵Linus Torvalds9-17/+56
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull perf fixes from Ingo Molnar: "Assorted small fixes" * 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: perf python: Properly link with libtraceevent perf hists browser: Add back callchain folding symbol perf tools: Fix build on sparc. perf python: Link with libtraceevent perf python: Initialize 'page_size' variable tools lib traceevent: Fix missed freeing of subargs in free_arg() in filter lib tools traceevent: Add back pevent assignment in __pevent_parse_format() perf hists browser: Fix off-by-two bug on the first column perf tools: Remove warnings on JIT samples for srcline sort key perf tools: Fix segfault when using srcline sort key perf: Require exclude_guest to use PEBS - kernel side enforcement perf tool: Precise mode requires exclude_guest
2012-10-20perf python: Properly link with libtraceeventArnaldo Carvalho de Melo3-14/+15
Namhyung Kim reported that the build fails with: GEN python/perf.so gcc: error: python_ext_build/tmp//../../libtraceevent.a: No such file or directory error: command 'gcc' failed with exit status 1 cp: cannot stat `python_ext_build/lib/perf.so': No such file or directory make: *** [python/perf.so] Error 1 We need to propagate the TE_PATH variable to the setup.py file. Reported-by: Namhyung Kim <[email protected]> Signed-off-by: Arnaldo Carvalho de Melo <[email protected]> Link: http://lkml.kernel.org/n/[email protected] [ Fixed superfluous variable build error. ] Signed-off-by: Ingo Molnar <[email protected]>
2012-10-20Merge tag 'perf-urgent-for-mingo' of ↵Ingo Molnar9-6/+44
git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux into perf/urgent Pull perf/urgent fixes from Arnaldo Carvalho de Melo: * The python binding needs to link with libtraceevent and to initialize the 'page_size' variable so that mmaping works again. * The callchain folding character that appears on the TUI just before the overhead had disappeared due to recent changes, add it back. * Intel PEBS in VT-x context uses the DS address as a guest linear address, even though its programmed by the host as a host linear address. This either results in guest memory corruption and or the hardware faulting and 'crashing' the virtual machine. Therefore we have to disable PEBS on VT-x enter and re-enable on VT-x exit, enforcing a strict exclude_guest. Kernel side enforcement fix by Peter Zijlstra, tooling side fix by David Ahern. * Fix build on sparc due to UAPI, fix from David Miller. * Fixes for the srclike sort key for unresolved symbols and when processing samples in JITted code, where we don't have an ELF file, just an special symbol table, fixes from Namhyung Kim. * Fix some leaks in libtraceevent, from Steven Rostedt. Signed-off-by: Arnaldo Carvalho de Melo <[email protected]> Signed-off-by: Ingo Molnar <[email protected]>
2012-10-19Merge tag 'fixes-for-linus' of ↵Linus Torvalds32-75/+133
git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc Pull ARM soc fixes from Olof Johansson: "A set of fixes and some minor cleanups for -rc2: - A series from Arnd that fixes warnings in drivers and other code included by ARM defconfigs. Most have been acked by corresponding maintainers (and seem quite hard to argue not picking up anyway in the few exception cases). - A few misc patches from the list for integrator/vt8500/i.MX - A batch of fixes to OMAP platforms, fixing: - boot problems on beaglebone, - regression fixes for local timers - clockdomain locking fixes - a few boot/sparse warnings - For Tegra: - Clock rate calculation overflow fix - Revert a change that removed timer clocks and a fix for symbol name clashes - For Renesas: - IO accessor / annotation cleanups to remove warnings - For Kirkwood/Dove/mvebu: - Fixes for device trees for Dove (some minor cleanups, some fixes) - Fixes for the mvebu gpio driver - Fix build problem for Feroceon due to missing ifdefs - Fix lsxl DTS files" * tag 'fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (31 commits) ARM: kirkwood: fix buttons on lsxl boards ARM: kirkwood: fix LEDs names for lsxl boards ARM: Kirkwood: fix disabling CACHE_FEROCEON_L2 gpio: mvebu: Add missing breaks in mvebu_gpio_irq_set_type ARM: dove: Add crypto engine to DT ARM: dove: Remove watchdog from DT ARM: dove: Restructure SoC device tree descriptor ARM: dove: Fix clock names of sata and gbe ARM: dove: Fix tauros2 device tree init ARM: dove: Add pcie clock support ARM: OMAP2+: Allow kernel to boot even if GPMC fails to reserve memory ARM: OMAP: clockdomain: Fix locking on _clkdm_clk_hwmod_enable / disable ARM: s3c: mark s3c2440_clk_add as __init_refok spi/s3c64xx: use correct dma_transfer_direction type ARM: OMAP4: devices: fixup OMAP4 DMIC platform device error message ARM: OMAP2+: clock data: Add dev-id for the omap-gpmc dummy fck ARM: OMAP: resolve sparse warning concerning debug_card_init() ARM: OMAP4: Fix twd_local_timer_register regression ARM: tegra: add tegra_timer clock ARM: tegra: rename tegra system timer ...
2012-10-19MODSIGN: Move the magic string to the end of a module and eliminate the searchDavid Howells4-31/+28
Emit the magic string that indicates a module has a signature after the signature data instead of before it. This allows module_sig_check() to be made simpler and faster by the elimination of the search for the magic string. Instead we just need to do a single memcmp(). This works because at the end of the signature data there is the fixed-length signature information block. This block then falls immediately prior to the magic number. From the contents of the information block, it is trivial to calculate the size of the signature data and thus the size of the actual module data. Signed-off-by: David Howells <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2012-10-19Merge tag 'kirkwood_fixes_for_v3.7' of ↵Olof Johansson3-12/+12
git://git.infradead.org/users/jcooper/linux into fixes From Jason Cooper: - improve #ifdef logic to prevent linker errors with CACHE_FEROCEON_L2 - lsxl board dts fixes * tag 'kirkwood_fixes_for_v3.7' of git://git.infradead.org/users/jcooper/linux: ARM: kirkwood: fix buttons on lsxl boards ARM: kirkwood: fix LEDs names for lsxl boards ARM: Kirkwood: fix disabling CACHE_FEROCEON_L2
2012-10-19MODSIGN: Cleanup .gitignoreDavid Howells1-6/+0
The module build process no longer creates intermediate files for module signing, so remove them from .gitignore. Signed-off-by: David Howells <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2012-10-19MODSIGN: perlify sign-file and merge in x509keyidDavid Howells3-347/+400
Turn sign-file into perl and merge in x509keyid. The latter doesn't need to be a separate script as it doesn't actually need to work out the SHA1 sum of the X.509 certificate itself, since it can get that from the X.509 certificate. Signed-off-by: David Howells <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2012-10-19Merge branch 'testing/driver-warnings' of ↵Olof Johansson7-10/+11
git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc into fixes A collection of warning fixes on non-ARM code from Arnd Bergmann: * 'testing/driver-warnings' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: ARM: s3c: mark s3c2440_clk_add as __init_refok spi/s3c64xx: use correct dma_transfer_direction type pcmcia: sharpsl: don't discard sharpsl_pcmcia_ops USB: EHCI: mark ehci_orion_conf_mbus_windows __devinit mm/slob: use min_t() to compare ARCH_SLAB_MINALIGN SCSI: ARM: make fas216_dumpinfo function conditional SCSI: ARM: ncr5380/oak uses no interrupts
2012-10-19hold task->mempolicy while numa_maps scans.KAMEZAWA Hiroyuki2-3/+51
/proc/<pid>/numa_maps scans vma and show mempolicy under mmap_sem. It sometimes accesses task->mempolicy which can be freed without mmap_sem and numa_maps can show some garbage while scanning. This patch tries to take reference count of task->mempolicy at reading numa_maps before calling get_vma_policy(). By this, task->mempolicy will not be freed until numa_maps reaches its end. V2->v3 - updated comments to be more verbose. - removed task_lock() in numa_maps code. V1->V2 - access task->mempolicy only once and remember it. Becase kernel/exit.c can overwrite it. Signed-off-by: KAMEZAWA Hiroyuki <[email protected]> Acked-by: David Rientjes <[email protected]> Acked-by: KOSAKI Motohiro <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2012-10-19Merge branch 'x86/urgent' of ↵Linus Torvalds6-34/+24
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull miscellaneous x86 fixes from Peter Anvin: "The biggest ones are fixing suspend/resume breakage on 32 bits, and an interrim fix for mapping over holes that allows AMD kit with more than 1 TB. A final solution for the latter is in the works, but involves some fairly invasive changes that will probably mean it will only be appropriate for 3.8." * 'x86/urgent' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: x86, MCE: Remove bios_cmci_threshold sysfs attribute x86, amd, mce: Avoid NULL pointer reference on CPU northbridge lookup x86: Exclude E820_RESERVED regions and memory holes above 4 GB from direct mapping. x86/cache_info: Use ARRAY_SIZE() in amd_l3_attrs() x86/reboot: Remove quirk entry for SBC FITPC x86, suspend: Correct the restore of CR4, EFER; skip computing EFLAGS.ID
2012-10-19Revert "cgroup: Remove task_lock() from cgroup_post_fork()"Tejun Heo1-12/+3
This reverts commit 7e3aa30ac8c904a706518b725c451bb486daaae9. The commit incorrectly assumed that fork path always performed threadgroup_change_begin/end() and depended on that for synchronization against task exit and cgroup migration paths instead of explicitly grabbing task_lock(). threadgroup_change is not locked when forking a new process (as opposed to a new thread in the same process) and even if it were it wouldn't be effective as different processes use different threadgroup locks. Revert the incorrect optimization. Signed-off-by: Tejun Heo <[email protected]> LKML-Reference: <20121008020000.GB2575@localhost> Acked-by: Li Zefan <[email protected]> Cc: Frederic Weisbecker <[email protected]> Cc: [email protected]
2012-10-19Revert "cgroup: Drop task_lock(parent) on cgroup_fork()"Tejun Heo1-17/+6
This reverts commit 7e381b0eb1e1a9805c37335562e8dc02e7d7848c. The commit incorrectly assumed that fork path always performed threadgroup_change_begin/end() and depended on that for synchronization against task exit and cgroup migration paths instead of explicitly grabbing task_lock(). threadgroup_change is not locked when forking a new process (as opposed to a new thread in the same process) and even if it were it wouldn't be effective as different processes use different threadgroup locks. Revert the incorrect optimization. Signed-off-by: Tejun Heo <[email protected]> LKML-Reference: <20121008020000.GB2575@localhost> Acked-by: Li Zefan <[email protected]> Bitterly-Acked-by: Frederic Weisbecker <[email protected]> Cc: [email protected]
2012-10-19Merge branch 'akpm' (Fixes from Andrew)Linus Torvalds8-26/+30
Merge misc fixes from Andrew Morton: "Seven fixes" * emailed patches from Andrew Morton <[email protected]>: (7 patches) lib/dma-debug.c: fix __hash_bucket_find() mm: compaction: correct the nr_strict va isolated check for CMA firmware/memmap: avoid type conflicts with the generic memmap_init() pidns: remove recursion from free_pid_ns() drivers/video/backlight/lm3639_bl.c: return proper error in lm3639_bled_mode_store() error paths kernel/sys.c: fix stack memory content leak via UNAME26 linux/coredump.h needs asm/siginfo.h
2012-10-19lib/dma-debug.c: fix __hash_bucket_find()Ming Lei1-2/+2
If there is only one match, the unique matched entry should be returned. Without the fix, the upcoming dma debug interfaces ("dma-debug: new interfaces to debug dma mapping errors") can't work reliably because only device and dma_addr are passed to dma_mapping_error(). Signed-off-by: Ming Lei <[email protected]> Reported-by: Wu Fengguang <[email protected]> Cc: Joerg Roedel <[email protected]> Tested-by: Shuah Khan <[email protected]> Cc: Paul Gortmaker <[email protected]> Cc: Jakub Kicinski <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2012-10-19mm: compaction: correct the nr_strict va isolated check for CMAMel Gorman1-1/+1
Thierry reported that the "iron out" patch for isolate_freepages_block() had problems due to the strict check being too strict with "mm: compaction: Iron out isolate_freepages_block() and isolate_freepages_range() -fix1". It's possible that more pages than necessary are isolated but the check still fails and I missed that this fix was not picked up before RC1. This same problem has been identified in 3.7-RC1 by Tony Prisk and should be addressed by the following patch. Signed-off-by: Mel Gorman <[email protected]> Tested-by: Tony Prisk <[email protected]> Reported-by: Thierry Reding <[email protected]> Acked-by: Rik van Riel <[email protected]> Acked-by: Minchan Kim <[email protected]> Cc: Richard Davies <[email protected]> Cc: Shaohua Li <[email protected]> Cc: Avi Kivity <[email protected]> Cc: Arnd Bergmann <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2012-10-19firmware/memmap: avoid type conflicts with the generic memmap_init()Fengguang Wu1-2/+2
Fix this build error: drivers/firmware/memmap.c:240:19: error: conflicting types for 'memmap_init' arch/ia64/include/asm/pgtable.h:565:17: note: previous declaration of 'memmap_init' was here Signed-off-by: Fengguang Wu <[email protected]> Cc: Bernhard Walle <[email protected]> Cc: Glauber Costa <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2012-10-19pidns: remove recursion from free_pid_ns()Cyrill Gorcunov2-14/+15
free_pid_ns() operates in a recursive fashion: free_pid_ns(parent) put_pid_ns(parent) kref_put(&ns->kref, free_pid_ns); free_pid_ns thus if there was a huge nesting of namespaces the userspace may trigger avalanche calling of free_pid_ns leading to kernel stack exhausting and a panic eventually. This patch turns the recursion into an iterative loop. Based on a patch by Andrew Vagin. [[email protected]: export put_pid_ns() to modules] Signed-off-by: Cyrill Gorcunov <[email protected]> Cc: Andrew Vagin <[email protected]> Cc: Oleg Nesterov <[email protected]> Cc: "Eric W. Biederman" <[email protected]> Cc: Pavel Emelyanov <[email protected]> Cc: Greg KH <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2012-10-19drivers/video/backlight/lm3639_bl.c: return proper error in ↵Axel Lin1-2/+2
lm3639_bled_mode_store() error paths Signed-off-by: Axel Lin <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2012-10-19kernel/sys.c: fix stack memory content leak via UNAME26Kees Cook1-5/+7
Calling uname() with the UNAME26 personality set allows a leak of kernel stack contents. This fixes it by defensively calculating the length of copy_to_user() call, making the len argument unsigned, and initializing the stack buffer to zero (now technically unneeded, but hey, overkill). CVE-2012-0957 Reported-by: PaX Team <[email protected]> Signed-off-by: Kees Cook <[email protected]> Cc: Andi Kleen <[email protected]> Cc: PaX Team <[email protected]> Cc: Brad Spengler <[email protected]> Cc: <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2012-10-19linux/coredump.h needs asm/siginfo.hRichard Weinberger1-0/+1
Commit 5ab1c309b344 ("coredump: pass siginfo_t* to do_coredump() and below, not merely signr") added siginfo_t to linux/coredump.h but forgot to include asm/siginfo.h. This breaks the build for UML/i386. (And any other arch where asm/siginfo.h is not magically preincluded...) In file included from arch/x86/um/elfcore.c:2:0: include/linux/coredump.h:15:25: error: unknown type name 'siginfo_t' make[1]: *** [arch/x86/um/elfcore.o] Error 1 Signed-off-by: Richard Weinberger <[email protected]> Cc: Denys Vlasenko <[email protected]> Cc: Oleg Nesterov <[email protected]> Cc: Amerigo Wang <[email protected]> Cc: "Jonathan M. Foote" <[email protected]> Cc: Roland McGrath <[email protected]> Cc: Pedro Alves <[email protected]> Cc: Fengguang Wu <[email protected]> Cc: Stephen Rothwell <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2012-10-19remap_file_pages: correctly handle the case of a NULL vm_ops pointerLinus Torvalds1-1/+1
In commit 0b173bc4daa8 ("mm: kill vma flag VM_CAN_NONLINEAR") we replaced the VM_CAN_NONLINEAR test with checking whether the mapping has a '->remap_pages()' vm operation, but there is no guarantee that there it even has a vm_ops pointer at all. Add the appropriate test for NULL vm_ops. Reported-by: Sasha Levin <[email protected]> Cc: Konstantin Khlebnikov <[email protected]> Cc: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2012-10-19drm/i915: Initialize obj->pages before use by i915_gem_object_do_bit17_swizzle()Chris Wilson1-1/+2
If we leave obj->pages set to NULL before attempting to deswizzle them, then an OOPS is well deserved. Fixes regression introduced in commit 9da3da660d8c19a54f6e93361d147509be3fff84 Author: Chris Wilson <[email protected]> Date: Fri Jun 1 15:20:22 2012 +0100 drm/i915: Replace the array of pages with a scatterlist Reported-and-tested-by: Krzysztof Kolasa Signed-off-by: Chris Wilson <[email protected]> Reviewed-by: Jesse Barnes <[email protected]> Signed-off-by: Daniel Vetter <[email protected]>
2012-10-19Merge tag 'xtensa-next-20121018' of git://github.com/czankel/xtensa-linuxLinus Torvalds82-1620/+1677
Pull Xtensa patchset from Chris Zankel: "These are all limited to the xtensa subtree and include some important changes (adding long missing system calls for newer libc versions and other fixes) and the UAPI changes" * tag 'xtensa-next-20121018' of git://github.com/czankel/xtensa-linux: xtensa: add missing system calls to the syscall table xtensa: minor compiler warning fix xtensa: Use Kbuild infrastructure to handle asm-generic headers UAPI: (Scripted) Disintegrate arch/xtensa/include/asm xtensa: fix unaligned usermode access xtensa: reorganize SR referencing xtensa: fix boot parameters parsing xtensa: fix missing return in do_page_fault for SIGBUS case xtensa: copy_thread with CLONE_VM must not copy live parent AR windows xtensa: fix memmove(), bcopy(), and memcpy(). xtensa: ISS: fix rs_put_char xtensa: ISS: fix specific simcalls
2012-10-19drm/i915: Add no-lvds quirk for Supermicro X7SPA-HChris Wilson1-0/+8
Reported-and-tested-by: Francois Tigeot <[email protected]> Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=55375 Signed-off-by: Chris Wilson <[email protected]> Signed-off-by: Daniel Vetter <[email protected]>
2012-10-19kbuild: Fix module signature generationLinus Torvalds1-2/+3
Rusty had clearly not actually tested his module signing changes that I (trustingly) applied as commit e2a666d52b48 ("kbuild: sign the modules at install time"). That commit had multiple bugs: - using "${#VARIABLE}" to get the number of characters in a shell variable may look clever, but it's locale-dependent: it returns the number of *characters*, not bytes. And we do need bytes. So don't use "${#..}" expansion, do the stupid "wc -c" thing instead (where "c" stands for "bytes", not "characters", despite the letter. - Rusty had confused "siglen" and "signerlen", and his conversion didn't set "signerlen" at all, and incorrectly set "siglen" to the size of the signer, not the size of the signature. End result: the modified sign-file script did create something that superficially *looked* like a signature, but didn't actually work at all, and would fail the signature check. Oops. Tssk, tssk, Rusty. But Rusty was definitely right that this whole thing should be rewritten in perl by somebody who has the perl-fu to do so. That is not me, though - I'm just doing an emergency fix for the shell script. Cc: Rusty Russell <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2012-10-19xen: dbgp: Fix warning when CONFIG_PCI is not enabled.Ian Campbell1-0/+2
I saw this on ARM: linux/drivers/xen/dbgp.c:11:23: warning: unused variable 'ctrlr' [-Wunused-variable] Acked-by: Stefano Stabellini <[email protected]> Signed-off-by: Ian Campbell <[email protected]> Acked-by: Jan Beulich <[email protected]> Signed-off-by: Konrad Rzeszutek Wilk <[email protected]>
2012-10-19Merge commit 'v3.7-rc1' into stable/for-linus-3.7Konrad Rzeszutek Wilk13183-372432/+690556
* commit 'v3.7-rc1': (10892 commits) Linux 3.7-rc1 x86, boot: Explicitly include autoconf.h for hostprogs perf: Fix UAPI fallout ARM: config: make sure that platforms are ordered by option string ARM: config: sort select statements alphanumerically UAPI: (Scripted) Disintegrate include/linux/byteorder UAPI: (Scripted) Disintegrate include/linux UAPI: Unexport linux/blk_types.h UAPI: Unexport part of linux/ppp-comp.h perf: Handle new rbtree implementation procfs: don't need a PATH_MAX allocation to hold a string representation of an int vfs: embed struct filename inside of names_cache allocation if possible audit: make audit_inode take struct filename vfs: make path_openat take a struct filename pointer vfs: turn do_path_lookup into wrapper around struct filename variant audit: allow audit code to satisfy getname requests from its names_list vfs: define struct filename and have getname() return it btrfs: Fix compilation with user namespace support enabled userns: Fix posix_acl_file_xattr_userns gid conversion userns: Properly print bluetooth socket uids ...
2012-10-19xen: arm: comment on why 64-bit xen_pfn_t is safe even on 32 bitIan Campbell1-1/+7
Signed-off-by: Ian Campbell <[email protected]> Signed-off-by: Konrad Rzeszutek Wilk <[email protected]>
2012-10-19xen: balloon: use correct type for frame_listIan Campbell1-1/+1
This is now a xen_pfn_t. Signed-off-by: Ian Campbell <[email protected]> Signed-off-by: Konrad Rzeszutek Wilk <[email protected]>
2012-10-19xen/x86: don't corrupt %eip when returning from a signal handlerDavid Vrabel2-4/+6
In 32 bit guests, if a userspace process has %eax == -ERESTARTSYS (-512) or -ERESTARTNOINTR (-513) when it is interrupted by an event /and/ the process has a pending signal then %eip (and %eax) are corrupted when returning to the main process after handling the signal. The application may then crash with SIGSEGV or a SIGILL or it may have subtly incorrect behaviour (depending on what instruction it returned to). The occurs because handle_signal() is incorrectly thinking that there is a system call that needs to restarted so it adjusts %eip and %eax to re-execute the system call instruction (even though user space had not done a system call). If %eax == -514 (-ERESTARTNOHAND (-514) or -ERESTART_RESTARTBLOCK (-516) then handle_signal() only corrupted %eax (by setting it to -EINTR). This may cause the application to crash or have incorrect behaviour. handle_signal() assumes that regs->orig_ax >= 0 means a system call so any kernel entry point that is not for a system call must push a negative value for orig_ax. For example, for physical interrupts on bare metal the inverse of the vector is pushed and page_fault() sets regs->orig_ax to -1, overwriting the hardware provided error code. xen_hypervisor_callback() was incorrectly pushing 0 for orig_ax instead of -1. Classic Xen kernels pushed %eax which works as %eax cannot be both non-negative and -RESTARTSYS (etc.), but using -1 is consistent with other non-system call entry points and avoids some of the tests in handle_signal(). There were similar bugs in xen_failsafe_callback() of both 32 and 64-bit guests. If the fault was corrected and the normal return path was used then 0 was incorrectly pushed as the value for orig_ax. Signed-off-by: David Vrabel <[email protected]> Acked-by: Jan Beulich <[email protected]> Acked-by: Ian Campbell <[email protected]> Cc: [email protected] Signed-off-by: Konrad Rzeszutek Wilk <[email protected]>
2012-10-19xen: arm: make p2m operations NOPsIan Campbell1-3/+10
This makes common code less ifdef-y and is consistent with PVHVM on x86. Also note that phys_to_machine_mapping_valid should take a pfn argument and make it do so. Add __set_phys_to_machine, make set_phys_to_machine a simple wrapper (on systems with non-nop implementations the outer one can allocate new p2m pages). Make __set_phys_to_machine check for identity mapping or invalid only. Acked-by: Stefano Stabellini <[email protected]> Signed-off-by: Ian Campbell <[email protected]> Signed-off-by: Konrad Rzeszutek Wilk <[email protected]>
2012-10-19xen: balloon: don't include e820.hIan Campbell1-1/+0
This breaks on !X86 and AFAICT is not required on X86 either. Acked-by: Stefano Stabellini <[email protected]> Signed-off-by: Ian Campbell <[email protected]> Signed-off-by: Konrad Rzeszutek Wilk <[email protected]>
2012-10-19xen: grant: use xen_pfn_t type for frame_list.Ian Campbell6-11/+7
This correctly sizes it as 64 bit on ARM but leaves it as unsigned long on x86 (therefore no intended change on x86). The long and ulong guest handles are now unused (and a bit dangerous) so remove them. Acked-by: Stefano Stabellini <[email protected]> Signed-off-by: Ian Campbell <[email protected]> Signed-off-by: Konrad Rzeszutek Wilk <[email protected]>
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