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2014-06-21Merge branch 'perf-urgent-for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull perf fixes from Ingo Molnar: "This is larger than usual: the main reason are the ARM symbol lookup speedups that came in late and were hard to resist. There's also a kprobes fix and various tooling fixes, plus the minimal re-enablement of the mmap2 support interface" * 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (36 commits) x86/kprobes: Fix build errors and blacklist context_track_user perf tests: Add test for closing dso objects on EMFILE error perf tests: Add test for caching dso file descriptors perf tests: Allow reuse of test_file function perf tests: Spawn child for each test perf tools: Add dso__data_* interface descriptons perf tools: Allow to close dso fd in case of open failure perf tools: Add file size check and factor dso__data_read_offset perf tools: Cache dso data file descriptor perf tools: Add global count of opened dso objects perf tools: Add global list of opened dso objects perf tools: Add data_fd into dso object perf tools: Separate dso data related variables perf tools: Cache register accesses for unwind processing perf record: Fix to honor user freq/interval properly perf timechart: Reflow documentation perf probe: Improve error messages in --line option perf probe: Improve an error message of perf probe --vars mode perf probe: Show error code and description in verbose mode perf probe: Improve error message for unknown member of data structure ...
2014-06-20Merge tag 'pm+acpi-3.16-rc2' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm Pull ACPI and power management fixes from Rafael Wysocki: "These are fixes mostly (ia64 regression related to the ACPI enumeration of devices, cpufreq regressions, fix for I2C controllers included in Intel SoCs, mvebu cpuidle driver fix related to sysfs) plus additional kernel command line arguments from Kees to make it possible to build kernel images with hibernation and the kernel address space randomization included simultaneously, a new ACPI battery driver quirk for a system with a broken BIOS and a couple of ACPI core cleanups. Specifics: - Fix for an ia64 regression introduced during the 3.11 cycle by a commit that modified the hardware initialization ordering and made device discovery fail on some systems. - Fix for a build problem on systems where the cpufreq-cpu0 driver is built-in and the cpu-thermal driver is modular from Arnd Bergmann. - Fix for a recently introduced computational mistake in the intel_pstate driver that leads to excessive rounding errors from Doug Smythies. - Fix for a failure code path in cpufreq_update_policy() that fails to unlock the locks acquired previously from Aaron Plattner. - Fix for the cpuidle mvebu driver to use shorter state names which will prevent the sysfs interface from returning mangled strings. From Gregory Clement. - ACPI LPSS driver fix to make sure that the I2C controllers included in BayTrail SoCs are not held in the reset state while they are being probed from Mika Westerberg. - New kernel command line arguments making it possible to build kernel images with hibernation and kASLR included at the same time and to select which of them will be used via the command line (they are still functionally mutually exclusive, though). From Kees Cook. - ACPI battery driver quirk for Acer Aspire V5-573G that fails to send battery status change notifications timely from Alexander Mezin. - Two ACPI core cleanups from Christoph Jaeger and Fabian Frederick" * tag 'pm+acpi-3.16-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: cpuidle: mvebu: Fix the name of the states cpufreq: unlock when failing cpufreq_update_policy() intel_pstate: Correct rounding in busy calculation ACPI: use kstrto*() instead of simple_strto*() ACPI / processor replace __attribute__((packed)) by __packed ACPI / battery: add quirk for Acer Aspire V5-573G ACPI / battery: use callback for setting up quirks ACPI / LPSS: Take I2C host controllers out of reset x86, kaslr: boot-time selectable with hibernation PM / hibernate: introduce "nohibernate" boot parameter cpufreq: cpufreq-cpu0: fix CPU_THERMAL dependency ACPI / ia64 / sba_iommu: Restore the working initialization ordering
2014-06-19Merge tag 'stable/for-linus-3.16-rc1-tag' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip Pull Xen fixes from David Vrabel: "Xen regression and PVH fixes for 3.16-rc1 - fix dom0 PVH memory setup on latest unstable Xen releases - fix 64-bit x86 PV guest boot failure on Xen 3.1 and earlier - fix resume regression on non-PV (auto-translated physmap) guests" * tag 'stable/for-linus-3.16-rc1-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip: xen/grant-table: fix suspend for non-PV guests x86/xen: no need to explicitly register an NMI callback Revert "xen/pvh: Update E820 to work with PVH (v2)" x86/xen: fix memory setup for PVH dom0
2014-06-18x86/xen: no need to explicitly register an NMI callbackDavid Vrabel
Remove xen_enable_nmi() to fix a 64-bit guest crash when registering the NMI callback on Xen 3.1 and earlier. It's not needed since the NMI callback is set by a set_trap_table hypercall (in xen_load_idt() or xen_write_idt_entry()). It's also broken since it only set the current VCPU's callback. Signed-off-by: David Vrabel <david.vrabel@citrix.com> Reported-by: Vitaly Kuznetsov <vkuznets@redhat.com> Tested-by: Vitaly Kuznetsov <vkuznets@redhat.com>
2014-06-16x86, kaslr: boot-time selectable with hibernationKees Cook
Changes kASLR from being compile-time selectable (blocked by CONFIG_HIBERNATION), to being boot-time selectable (with hibernation available by default) via the "kaslr" kernel command line. Signed-off-by: Kees Cook <keescook@chromium.org> Acked-by: Pavel Machek <pavel@ucw.cz> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2014-06-14Merge branch 'x86-vdso-for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull x86 vdso fixes from Peter Anvin: "Fixes for x86/vdso. One is a simple build fix for bigendian hosts, one is to make "make vdso_install" work again, and the rest is about working around a bug in Google's Go language -- two are documentation patches that improves the sample code that the Go coders took, modified, and broke; the other two implements a workaround that keeps existing Go binaries from segfaulting at least" * 'x86-vdso-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: x86/vdso: Fix vdso_install x86/vdso: Hack to keep 64-bit Go programs working x86/vdso: Add PUT_LE to store little-endian values x86/vdso/doc: Make vDSO examples more portable x86/vdso/doc: Rename vdso_test.c to vdso_standalone_test_x86.c x86, vdso: Remove one final use of htole16()
2014-06-14x86/kprobes: Fix build errors and blacklist context_track_userMasami Hiramatsu
This essentially reverts commit: ecd50f714c42 ("kprobes, x86: Call exception_enter after kprobes handled") since it causes build errors with CONFIG_CONTEXT_TRACKING and that has been made from misunderstandings; context_track_user_*() don't involve much in interrupt context, it just returns if in_interrupt() is true. Instead of changing the do_debug/int3(), this just adds context_track_user_*() to kprobes blacklist, since those are still can be called right before kprobes handles int3 and debug exceptions, and probing those will cause an infinite loop. Reported-by: Frederic Weisbecker <fweisbec@gmail.com> Signed-off-by: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com> Cc: Borislav Petkov <bp@suse.de> Cc: Kees Cook <keescook@chromium.org> Cc: Jiri Kosina <jkosina@suse.cz> Cc: Rusty Russell <rusty@rustcorp.com.au> Cc: Steven Rostedt <rostedt@goodmis.org> Cc: Seiji Aguchi <seiji.aguchi@hds.com> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: Kees Cook <keescook@chromium.org> Link: http://lkml.kernel.org/r/20140614064711.7865.45957.stgit@kbuild-fedora.novalocal Signed-off-by: Ingo Molnar <mingo@kernel.org>
2014-06-13x86/vdso: Fix vdso_installAndy Lutomirski
"make vdso_install" installs unstripped versions of the vdso objects for the benefit of the debugger. This was broken by checkin: 6f121e548f83 x86, vdso: Reimplement vdso.so preparation in build-time C The filenames are different now, so update the Makefile to cope. This still installs the 64-bit vdso as vdso64.so. We believe this will be okay, as the only known user is a patched gdb which is known to use build-ids, but if it turns out to be a problem we may have to add a link. Inspired by a patch from Sam Ravnborg. Acked-by: Sam Ravnborg <sam@ravnborg.org> Reported-by: Josh Boyer <jwboyer@fedoraproject.org> Tested-by: Josh Boyer <jwboyer@fedoraproject.org> Signed-off-by: Andy Lutomirski <luto@amacapital.net> Link: http://lkml.kernel.org/r/b10299edd8ba98d17e07dafcd895b8ecf4d99eff.1402586707.git.luto@amacapital.net Signed-off-by: H. Peter Anvin <hpa@zytor.com>
2014-06-13Merge branch 'x86-irq-for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull x86 irq fixes from Ingo Molnar: "Two changes: a cpu-hotplug/irq race fix, plus a HyperV related fix" * 'x86-irq-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: x86/irq: Fix fixup_irqs() error handling x86, irq, pic: Probe for legacy PIC and set legacy_pic appropriately
2014-06-13Merge branch 'perf-core-for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull more perf updates from Ingo Molnar: "A second round of perf updates: - wide reaching kprobes sanitization and robustization, with the hope of fixing all 'probe this function crashes the kernel' bugs, by Masami Hiramatsu. - uprobes updates from Oleg Nesterov: tmpfs support, corner case fixes and robustization work. - perf tooling updates and fixes from Jiri Olsa, Namhyung Ki, Arnaldo et al: * Add support to accumulate hist periods (Namhyung Kim) * various fixes, refactorings and enhancements" * 'perf-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (101 commits) perf: Differentiate exec() and non-exec() comm events perf: Fix perf_event_comm() vs. exec() assumption uprobes/x86: Rename arch_uprobe->def to ->defparam, minor comment updates perf/documentation: Add description for conditional branch filter perf/x86: Add conditional branch filtering support perf/tool: Add conditional branch filter 'cond' to perf record perf: Add new conditional branch filter 'PERF_SAMPLE_BRANCH_COND' uprobes: Teach copy_insn() to support tmpfs uprobes: Shift ->readpage check from __copy_insn() to uprobe_register() perf/x86: Use common PMU interrupt disabled code perf/ARM: Use common PMU interrupt disabled code perf: Disable sampled events if no PMU interrupt perf: Fix use after free in perf_remove_from_context() perf tools: Fix 'make help' message error perf record: Fix poll return value propagation perf tools: Move elide bool into perf_hpp_fmt struct perf tools: Remove elide setup for SORT_MODE__MEMORY mode perf tools: Fix "==" into "=" in ui_browser__warning assignment perf tools: Allow overriding sysfs and proc finding with env var perf tools: Consider header files outside perf directory in tags target ...
2014-06-13x86/vdso: Hack to keep 64-bit Go programs workingAndy Lutomirski
The Go runtime has a buggy vDSO parser that currently segfaults. This writes an empty SHT_DYNSYM entry that causes Go's runtime to malfunction by thinking that the vDSO is empty rather than malfunctioning by running off the end and segfaulting. This affects x86-64 only as far as we know, so we do not need this for the i386 and x32 vdsos. Signed-off-by: Andy Lutomirski <luto@amacapital.net> Link: http://lkml.kernel.org/r/d10618176c4bd39b457a5e85c497295c90cab1bc.1402620737.git.luto@amacapital.net Signed-off-by: H. Peter Anvin <hpa@zytor.com>
2014-06-13x86/vdso: Add PUT_LE to store little-endian valuesAndy Lutomirski
Add PUT_LE() by analogy with GET_LE() to write littleendian values in addition to reading them. Signed-off-by: Andy Lutomirski <luto@amacapital.net> Link: http://lkml.kernel.org/r/3d9b27e92745b27b6fda1b9a98f70dc9c1246c7a.1402620737.git.luto@amacapital.net Signed-off-by: H. Peter Anvin <hpa@zytor.com>
2014-06-13Merge branch 'locking-core-for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull more locking changes from Ingo Molnar: "This is the second round of locking tree updates for v3.16, offering large system scalability improvements: - optimistic spinning for rwsems, from Davidlohr Bueso. - 'qrwlocks' core code and x86 enablement, from Waiman Long and PeterZ" * 'locking-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: x86, locking/rwlocks: Enable qrwlocks on x86 locking/rwlocks: Introduce 'qrwlocks' - fair, queued rwlocks locking/mutexes: Documentation update/rewrite locking/rwsem: Fix checkpatch.pl warnings locking/rwsem: Fix warnings for CONFIG_RWSEM_GENERIC_SPINLOCK locking/rwsem: Support optimistic spinning
2014-06-12Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-nextLinus Torvalds
Pull networking updates from David Miller: 1) Seccomp BPF filters can now be JIT'd, from Alexei Starovoitov. 2) Multiqueue support in xen-netback and xen-netfront, from Andrew J Benniston. 3) Allow tweaking of aggregation settings in cdc_ncm driver, from Bjørn Mork. 4) BPF now has a "random" opcode, from Chema Gonzalez. 5) Add more BPF documentation and improve test framework, from Daniel Borkmann. 6) Support TCP fastopen over ipv6, from Daniel Lee. 7) Add software TSO helper functions and use them to support software TSO in mvneta and mv643xx_eth drivers. From Ezequiel Garcia. 8) Support software TSO in fec driver too, from Nimrod Andy. 9) Add Broadcom SYSTEMPORT driver, from Florian Fainelli. 10) Handle broadcasts more gracefully over macvlan when there are large numbers of interfaces configured, from Herbert Xu. 11) Allow more control over fwmark used for non-socket based responses, from Lorenzo Colitti. 12) Do TCP congestion window limiting based upon measurements, from Neal Cardwell. 13) Support busy polling in SCTP, from Neal Horman. 14) Allow RSS key to be configured via ethtool, from Venkata Duvvuru. 15) Bridge promisc mode handling improvements from Vlad Yasevich. 16) Don't use inetpeer entries to implement ID generation any more, it performs poorly, from Eric Dumazet. * git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next: (1522 commits) rtnetlink: fix userspace API breakage for iproute2 < v3.9.0 tcp: fixing TLP's FIN recovery net: fec: Add software TSO support net: fec: Add Scatter/gather support net: fec: Increase buffer descriptor entry number net: fec: Factorize feature setting net: fec: Enable IP header hardware checksum net: fec: Factorize the .xmit transmit function bridge: fix compile error when compiling without IPv6 support bridge: fix smatch warning / potential null pointer dereference via-rhine: fix full-duplex with autoneg disable bnx2x: Enlarge the dorq threshold for VFs bnx2x: Check for UNDI in uncommon branch bnx2x: Fix 1G-baseT link bnx2x: Fix link for KR with swapped polarity lane sctp: Fix sk_ack_backlog wrap-around problem net/core: Add VF link state control policy net/fsl: xgmac_mdio is dependent on OF_MDIO net/fsl: Make xgmac_mdio read error message useful net_sched: drr: warn when qdisc is not work conserving ...
2014-06-12Merge branch 'drm-next' of git://people.freedesktop.org/~airlied/linuxLinus Torvalds
Pull drm updates from Dave Airlie: "This is the main drm merge window pull request, changes all over the place, mostly normal levels of churn. Highlights: Core drm: More cleanups, fix race on connector/encoder naming, docs updates, object locking rework in prep for atomic modeset i915: mipi DSI support, valleyview power fixes, cursor size fixes, execlist refactoring, vblank improvements, userptr support, OOM handling improvements radeon: GPUVM tuning and large page size support, gart fixes, deep color HDMI support, HDMI audio cleanups nouveau: - displayport rework should fix lots of issues - initial gk20a support - gk110b support - gk208 fixes exynos: probe order fixes, HDMI changes, IPP consolidation msm: debugfs updates, misc fixes ast: ast2400 support, sync with UMS driver tegra: cleanups, hdmi + hw cursor for Tegra 124. panel: fixes existing panels add some new ones. ipuv3: moved from staging to drivers/gpu" * 'drm-next' of git://people.freedesktop.org/~airlied/linux: (761 commits) drm/nouveau/disp/dp: fix tmds passthrough on dp connector drm/nouveau/dp: probe dpcd to determine connectedness drm/nv50-: trigger update after all connectors disabled drm/nv50-: prepare for attaching a SOR to multiple heads drm/gf119-/disp: fix debug output on update failure drm/nouveau/disp/dp: make use of postcursor when its available drm/g94-/disp/dp: take max pullup value across all lanes drm/nouveau/bios/dp: parse lane postcursor data drm/nouveau/dp: fix support for dpms drm/nouveau: register a drm_dp_aux channel for each dp connector drm/g94-/disp: add method to power-off dp lanes drm/nouveau/disp/dp: maintain link in response to hpd signal drm/g94-/disp: bash and wait for something after changing lane power regs drm/nouveau/disp/dp: split link config/power into two steps drm/nv50/disp: train PIOR-attached DP from second supervisor drm/nouveau/disp/dp: make use of existing output data for link training drm/gf119/disp: start removing direct vbios parsing from supervisor drm/nv50/disp: start removing direct vbios parsing from supervisor drm/nouveau/disp/dp: maintain receiver caps in response to hpd signal drm/nouveau/disp/dp: create subclass for dp outputs ...
2014-06-11net: filter: cleanup A/X name usageAlexei Starovoitov
The macro 'A' used in internal BPF interpreter: #define A regs[insn->a_reg] was easily confused with the name of classic BPF register 'A', since 'A' would mean two different things depending on context. This patch is trying to clean up the naming and clarify its usage in the following way: - A and X are names of two classic BPF registers - BPF_REG_A denotes internal BPF register R0 used to map classic register A in internal BPF programs generated from classic - BPF_REG_X denotes internal BPF register R7 used to map classic register X in internal BPF programs generated from classic - internal BPF instruction format: struct sock_filter_int { __u8 code; /* opcode */ __u8 dst_reg:4; /* dest register */ __u8 src_reg:4; /* source register */ __s16 off; /* signed offset */ __s32 imm; /* signed immediate constant */ }; - BPF_X/BPF_K is 1 bit used to encode source operand of instruction In classic: BPF_X - means use register X as source operand BPF_K - means use 32-bit immediate as source operand In internal: BPF_X - means use 'src_reg' register as source operand BPF_K - means use 32-bit immediate as source operand Suggested-by: Chema Gonzalez <chema@google.com> Signed-off-by: Alexei Starovoitov <ast@plumgrid.com> Acked-by: Daniel Borkmann <dborkman@redhat.com> Acked-by: Chema Gonzalez <chema@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-06-11Merge git://www.linux-watchdog.org/linux-watchdogLinus Torvalds
Pull watchdog updates from Wim Van Sebroeck: "This contains: - addition of the Intel MID watchdog - removal of W83697HF and W83697UG drivers (code was merged into w83627hf_wdt driver) - addition of Armada 375/380 SoC support - conversion of imx2_wdt to regmap API and to watchdog core API - lots of other small improvements and fixes" [ Wim was also tagged by gmail as a spammer, but not delayed by days unlike Ben ] * git://www.linux-watchdog.org/linux-watchdog: (25 commits) x86: intel-mid: add watchdog platform code for Merrifield watchdog: add Intel MID watchdog driver support watchdog: sp805: Set watchdog_device->timeout from ->set_timeout() booke/watchdog: refine and clean up the codes watchdog: iop_wdt only builds for mach-iop13xx watchdog: Remove drivers for W83697HF and W83697UG watchdog: w83627hf_wdt: Add early_disable module parameter ARM: mvebu: Add A375/A380 watchdog binding documentation watchdog: orion: Add Armada 375/380 SoC support watchdog: orion: Introduce per-SoC enabled() function watchdog: orion: Introduce per-SoC stop() function watchdog: orion: Remove unneeded atomic access watchdog: orion: Introduce a SoC-specific RSTOUT mapping watchdog: orion: Move the register ioremap'ing to its own function watchdog: xilinx: Make of_device_id array const watchdog: imx2_wdt: convert to watchdog core api watchdog: imx2_wdt: convert to use regmap API. watchdog: imx2_wdt: Sort the header files alphabetically watchdog: ath79_wdt: switch to clk_prepare/clk_disable watchdog: ath79_wdt: avoid spurious restarts on AR934x ...
2014-06-10x86, vdso: Remove one final use of htole16()H. Peter Anvin
One final use of the macros from <endian.h> which are not available on older system. In this case we had one sole case of *writing* a littleendian number, but the number is SHN_UNDEF which is the constant zero, so rather than dealing with the general case of littleendian puts here, just document that the constant is zero and be done with it. Reported-and-Tested-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: H. Peter Anvin <hpa@zytor.com> Cc: Andy Lutomirski <luto@amacapital.net> Link: http://lkml.kernel.org/r/20140610135051.c3c34165f73d67d218b62bd9@linux-foundation.org
2014-06-10x86: intel-mid: add watchdog platform code for MerrifieldDavid Cohen
This patch adds platform code for Intel Merrifield. Since the watchdog is not part of SFI table, we have no other option but to manually register watchdog's platform device (argh!). Signed-off-by: David Cohen <david.a.cohen@linux.intel.com> Reviewed-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
2014-06-09Merge tag 'trace-3.16' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace Pull tracing updates from Steven Rostedt: "Lots of tweaks, small fixes, optimizations, and some helper functions to help out the rest of the kernel to ease their use of trace events. The big change for this release is the allowing of other tracers, such as the latency tracers, to be used in the trace instances and allow for function or function graph tracing to be in the top level simultaneously" * tag 'trace-3.16' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace: (44 commits) tracing: Fix memory leak on instance deletion tracing: Fix leak of ring buffer data when new instances creation fails tracing/kprobes: Avoid self tests if tracing is disabled on boot up tracing: Return error if ftrace_trace_arrays list is empty tracing: Only calculate stats of tracepoint benchmarks for 2^32 times tracing: Convert stddev into u64 in tracepoint benchmark tracing: Introduce saved_cmdlines_size file tracing: Add __get_dynamic_array_len() macro for trace events tracing: Remove unused variable in trace_benchmark tracing: Eliminate double free on failure of allocation on boot up ftrace/x86: Call text_ip_addr() instead of the duplicated code tracing: Print max callstack on stacktrace bug tracing: Move locking of trace_cmdline_lock into start/stop seq calls tracing: Try again for saved cmdline if failed due to locking tracing: Have saved_cmdlines use the seq_read infrastructure tracing: Add tracepoint benchmark tracepoint tracing: Print nasty banner when trace_printk() is in use tracing: Add funcgraph_tail option to print function name after closing braces tracing: Eliminate duplicate TRACE_GRAPH_PRINT_xx defines tracing: Add __bitmask() macro to trace events to cpumasks and other bitmasks ...
2014-06-08Merge branch 'x86-vdso-for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull x86 vdso build fix from Peter Anvin: "This fixes building the vdso code on older Linux systems, and probably some non-Linux systems" * 'x86-vdso-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: x86, vdso: Use <tools/le_byteshift.h> for littleendian access
2014-06-08Merge branch 'next' (accumulated 3.16 merge window patches) into masterLinus Torvalds
Now that 3.15 is released, this merges the 'next' branch into 'master', bringing us to the normal situation where my 'master' branch is the merge window. * accumulated work in next: (6809 commits) ufs: sb mutex merge + mutex_destroy powerpc: update comments for generic idle conversion cris: update comments for generic idle conversion idle: remove cpu_idle() forward declarations nbd: zero from and len fields in NBD_CMD_DISCONNECT. mm: convert some level-less printks to pr_* MAINTAINERS: adi-buildroot-devel is moderated MAINTAINERS: add linux-api for review of API/ABI changes mm/kmemleak-test.c: use pr_fmt for logging fs/dlm/debug_fs.c: replace seq_printf by seq_puts fs/dlm/lockspace.c: convert simple_str to kstr fs/dlm/config.c: convert simple_str to kstr mm: mark remap_file_pages() syscall as deprecated mm: memcontrol: remove unnecessary memcg argument from soft limit functions mm: memcontrol: clean up memcg zoneinfo lookup mm/memblock.c: call kmemleak directly from memblock_(alloc|free) mm/mempool.c: update the kmemleak stack trace for mempool allocations lib/radix-tree.c: update the kmemleak stack trace for radix tree allocations mm: introduce kmemleak_update_trace() mm/kmemleak.c: use %u to print ->checksum ...
2014-06-08Revert "x86/smpboot: Initialize secondary CPU only if master CPU will wait ↵Linus Torvalds
for it" This reverts commit 3e1a878b7ccdb31da6d9d2b855c72ad87afeba3f. It came in very late, and already has one reported failure: Sitsofe reports that the current tree fails to boot on his EeePC, and bisected it down to this. Rather than waste time trying to figure out what's wrong, just revert it. Reported-by: Sitsofe Wheeler <sitsofe@gmail.com> Cc: Igor Mammedov <imammedo@redhat.com> Cc: Toshi Kani <toshi.kani@hp.com> Cc: Thomas Gleixner <tglx@linutronix.de> Acked-by: Ingo Molnar <mingo@kernel.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2014-06-08Merge git://git.kernel.org/pub/scm/linux/kernel/git/herbert/cryptodev-2.6 ↵Linus Torvalds
into next Pull crypto updates from Herbert Xu: "Here is the crypto update for 3.16: - Added test vectors for SHA/AES-CCM/DES-CBC/3DES-CBC. - Fixed a number of error-path memory leaks in tcrypt. - Fixed error-path memory leak in caam. - Removed unnecessary global mutex from mxs-dcp. - Added ahash walk interface that can actually be asynchronous. - Cleaned up caam error reporting. - Allow crypto_user get operation to be used by non-root users. - Add support for SSS module on Exynos. - Misc fixes" * git://git.kernel.org/pub/scm/linux/kernel/git/herbert/cryptodev-2.6: (60 commits) crypto: testmgr - add aead cbc des, des3_ede tests crypto: testmgr - Fix DMA-API warning crypto: cesa - tfm->__crt_alg->cra_type directly crypto: sahara - tfm->__crt_alg->cra_name directly crypto: padlock - tfm->__crt_alg->cra_name directly crypto: n2 - tfm->__crt_alg->cra_name directly crypto: dcp - tfm->__crt_alg->cra_name directly crypto: cesa - tfm->__crt_alg->cra_name directly crypto: ccp - tfm->__crt_alg->cra_name directly crypto: geode - Don't use tfm->__crt_alg->cra_name directly crypto: geode - Weed out printk() from probe() crypto: geode - Consistently use AES_KEYSIZE_128 crypto: geode - Kill AES_IV_LENGTH crypto: geode - Kill AES_MIN_BLOCK_SIZE crypto: mxs-dcp - Remove global mutex crypto: hash - Add real ahash walk interface hwrng: n2-drv - Introduce the use of the managed version of kzalloc crypto: caam - reinitialize keys_fit_inline for decrypt and givencrypt crypto: s5p-sss - fix multiplatform build hwrng: timeriomem - remove unnecessary OOM messages ...
2014-06-07x86/boot: EFI_MIXED should not prohibit loading above 4GMatt Fleming
commit 7d453eee36ae ("x86/efi: Wire up CONFIG_EFI_MIXED") introduced a regression for the functionality to load kernels above 4G. The relevant (incorrect) reasoning behind this change can be seen in the commit message, "The xloadflags field in the bzImage header is also updated to reflect that the kernel supports both entry points by setting both of XLF_EFI_HANDOVER_32 and XLF_EFI_HANDOVER_64 when CONFIG_EFI_MIXED=y. XLF_CAN_BE_LOADED_ABOVE_4G is disabled so that the kernel text is guaranteed to be addressable with 32-bits." This is obviously bogus since 32-bit EFI loaders will never place the kernel above the 4G mark. So this restriction is entirely unnecessary. But things are worse than that - since we want to encourage people to always compile with CONFIG_EFI_MIXED=y so that their kernels work out of the box for both 32-bit and 64-bit firmware, commit 7d453eee36ae effectively disables XLF_CAN_BE_LOADED_ABOVE_4G completely. Remove the overzealous and superfluous restriction and restore the XLF_CAN_BE_LOADED_ABOVE_4G functionality. Cc: "H. Peter Anvin" <hpa@zytor.com> Cc: Dave Young <dyoung@redhat.com> Cc: Vivek Goyal <vgoyal@redhat.com> Signed-off-by: Matt Fleming <matt.fleming@intel.com> Link: http://lkml.kernel.org/r/1402140380-15377-1-git-send-email-matt@console-pimps.org Signed-off-by: H. Peter Anvin <hpa@zytor.com>
2014-06-06signals: kill sigfindinword()Oleg Nesterov
It has no users and it doesn't look useful. I do not know why/when it was introduced, I can't even find any user in the git history. Signed-off-by: Oleg Nesterov <oleg@redhat.com> Acked-by: Geert Uytterhoeven <geert@linux-m68k.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Al Viro <viro@ZenIV.linux.org.uk> Cc: David Woodhouse <dwmw2@infradead.org> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Ingo Molnar <mingo@kernel.org> Cc: Mathieu Desnoyers <mathieu.desnoyers@efficios.com> Cc: Richard Weinberger <richard@nod.at> Cc: Steven Rostedt <rostedt@goodmis.org> Cc: Tejun Heo <tj@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2014-06-06x86, vdso: Use <tools/le_byteshift.h> for littleendian accessH. Peter Anvin
There are no standard functions for littleendian data (unlike bigendian data.) Thus, use <tools/le_byteshift.h> to access littleendian data members. Those are fairly inefficient, but it doesn't matter for this purpose (and can be optimized later.) This avoids portability problems. Reported-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: H. Peter Anvin <hpa@linux.intel.com> Tested-by: Andy Lutomirski <luto@amacapital.net> Link: http://lkml.kernel.org/r/20140606140017.afb7f91142f66cb3dd13c186@linux-foundation.org
2014-06-06x86, locking/rwlocks: Enable qrwlocks on x86Waiman Long
Make x86 use the fair rwlock_t. Implement the custom queue_write_unlock() for best performance. Signed-off-by: Waiman Long <Waiman.Long@hp.com> [peterz: near complete rewrite] Signed-off-by: Peter Zijlstra <peterz@infradead.org> Cc: Dave Jones <davej@redhat.com> Cc: Jeremy Fitzhardinge <jeremy@goop.org> Cc: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Oleg Nesterov <oleg@redhat.com> Cc: Raghavendra K T <raghavendra.kt@linux.vnet.ibm.com> Cc: "Paul E.McKenney" <paulmck@linux.vnet.ibm.com> Cc: linux-kernel@vger.kernel.org Cc: x86@kernel.org Link: http://lkml.kernel.org/n/tip-r1xuzmdysvuhl3h86n5fbxi7@git.kernel.org Signed-off-by: Ingo Molnar <mingo@kernel.org>
2014-06-06Merge branch 'perf/urgent' into perf/core, to resolve conflict and to ↵Ingo Molnar
prepare for new patches Conflicts: arch/x86/kernel/traps.c Signed-off-by: Ingo Molnar <mingo@kernel.org>
2014-06-05Merge tag 'efi-urgent' into x86/urgentH. Peter Anvin
* Fix earlyprintk=efi,keep support by switching to an ioremap() mapping of the framebuffer when early_ioremap() is no longer available and dropping __init from functions that may be invoked after free_initmem() - Dave Young * We shouldn't be exporting the EFI runtime map in sysfs if not using the new 1:1 EFI mapping code since in that case the mappings are not static across a kexec reboot - Dave Young Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
2014-06-05Merge branch 'x86-efi-for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip into next Pull x86 EFI updates from Peter Anvin: "A collection of EFI changes. The perhaps most important one is to fully save and restore the FPU state around each invocation of EFI runtime, and to not choke on non-ASCII characters in the boot stub" * 'x86-efi-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: efivars: Add compatibility code for compat tasks efivars: Refactor sanity checking code into separate function efivars: Stop passing a struct argument to efivar_validate() efivars: Check size of user object efivars: Use local variables instead of a pointer dereference x86/efi: Save and restore FPU context around efi_calls (i386) x86/efi: Save and restore FPU context around efi_calls (x86_64) x86/efi: Implement a __efi_call_virt macro x86, fpu: Extend the use of static_cpu_has_safe x86/efi: Delete most of the efi_call* macros efi: x86: Handle arbitrary Unicode characters efi: Add get_dram_base() helper function efi: Add shared printk wrapper for consistent prefixing efi: create memory map iteration helper efi: efi-stub-helper cleanup
2014-06-05Merge branch 'x86/vdso' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip into next Pull x86 cdso updates from Peter Anvin: "Vdso cleanups and improvements largely from Andy Lutomirski. This makes the vdso a lot less ''special''" * 'x86/vdso' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: x86/vdso, build: Make LE access macros clearer, host-safe x86/vdso, build: Fix cross-compilation from big-endian architectures x86/vdso, build: When vdso2c fails, unlink the output x86, vdso: Fix an OOPS accessing the HPET mapping w/o an HPET x86, mm: Replace arch_vma_name with vm_ops->name for vsyscalls x86, mm: Improve _install_special_mapping and fix x86 vdso naming mm, fs: Add vm_ops->name as an alternative to arch_vma_name x86, vdso: Fix an OOPS accessing the HPET mapping w/o an HPET x86, vdso: Remove vestiges of VDSO_PRELINK and some outdated comments x86, vdso: Move the vvar and hpet mappings next to the 64-bit vDSO x86, vdso: Move the 32-bit vdso special pages after the text x86, vdso: Reimplement vdso.so preparation in build-time C x86, vdso: Move syscall and sysenter setup into kernel/cpu/common.c x86, vdso: Clean up 32-bit vs 64-bit vdso params x86, mm: Ensure correct alignment of the fixmap
2014-06-05Merge branch 'x86/espfix' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip into next Pull x86-64 espfix changes from Peter Anvin: "This is the espfix64 code, which fixes the IRET information leak as well as the associated functionality problem. With this code applied, 16-bit stack segments finally work as intended even on a 64-bit kernel. Consequently, this patchset also removes the runtime option that we added as an interim measure. To help the people working on Linux kernels for very small systems, this patchset also makes these compile-time configurable features" * 'x86/espfix' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: Revert "x86-64, modify_ldt: Make support for 16-bit segments a runtime option" x86, espfix: Make it possible to disable 16-bit support x86, espfix: Make espfix64 a Kconfig option, fix UML x86, espfix: Fix broken header guard x86, espfix: Move espfix definitions into a separate header file x86-32, espfix: Remove filter for espfix32 due to race x86-64, espfix: Don't leak bits 31:16 of %esp returning to 16-bit stack
2014-06-05Merge branch 'x86-x32-for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip into next Pull x86 x32 ABI fix from Peter Anvin: "A single fix for the x32 ABI: the io_setup() and io_submit() system call need to use the compat stubs" * 'x86-x32-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: x86, x32: Use compat shims for io_{setup,submit}
2014-06-05Merge branch 'uprobes/core' of ↵Ingo Molnar
git://git.kernel.org/pub/scm/linux/kernel/git/oleg/misc into perf/core Pull uprobes tmpfs support patches from Oleg Nesterov. Signed-off-by: Ingo Molnar <mingo@kernel.org>
2014-06-05x86/smpboot: Initialize secondary CPU only if master CPU will wait for itIgor Mammedov
Hang is observed on virtual machines during CPU hotplug, especially in big guests with many CPUs. (It reproducible more often if host is over-committed). It happens because master CPU gives up waiting on secondary CPU and allows it to run wild. As result AP causes locking or crashing system. For example as described here: https://lkml.org/lkml/2014/3/6/257 If master CPU have sent STARTUP IPI successfully, and AP signalled to master CPU that it's ready to start initialization, make master CPU wait indefinitely till AP is onlined. To ensure that AP won't ever run wild, make it wait at early startup till master CPU confirms its intention to wait for AP. If AP doesn't respond in 10 seconds, the master CPU will timeout and cancel AP onlining. Signed-off-by: Igor Mammedov <imammedo@redhat.com> Acked-by: Toshi Kani <toshi.kani@hp.com> Cc: Thomas Gleixner <tglx@linutronix.de> Link: http://lkml.kernel.org/r/1401975765-22328-4-git-send-email-imammedo@redhat.com Signed-off-by: Ingo Molnar <mingo@kernel.org>
2014-06-05x86/smpboot: Log error on secondary CPU wakeup failure at ERR levelIgor Mammedov
If system is running without debug level logging, it will not log error if do_boot_cpu() failed to wakeup AP. It may lead to silent AP bringup failures at boot time. Change message level to KERN_ERR to make error visible to user as it's done on other architectures. Signed-off-by: Igor Mammedov <imammedo@redhat.com> Acked-by: Toshi Kani <toshi.kani@hp.com> Cc: Thomas Gleixner <tglx@linutronix.de> Link: http://lkml.kernel.org/r/1401975765-22328-3-git-send-email-imammedo@redhat.com Signed-off-by: Ingo Molnar <mingo@kernel.org>
2014-06-05x86: Fix list/memory corruption on CPU hotplugIgor Mammedov
currently if AP wake up is failed, master CPU marks AP as not present in do_boot_cpu() by calling set_cpu_present(cpu, false). That leads to following list corruption on the next physical CPU hotplug: [ 418.107336] WARNING: CPU: 1 PID: 45 at lib/list_debug.c:33 __list_add+0xbe/0xd0() [ 418.115268] list_add corruption. prev->next should be next (ffff88003dc57600), but was ffff88003e20c3a0. (prev=ffff88003e20c3a0). [ 418.123693] Modules linked in: nf_conntrack_netbios_ns nf_conntrack_broadcast ipt_MASQUERADE ip6t_REJECT ipt_REJECT cfg80211 xt_conntrack rfkill ee [ 418.138979] CPU: 1 PID: 45 Comm: kworker/u10:1 Not tainted 3.14.0-rc6+ #387 [ 418.149989] Hardware name: Red Hat KVM, BIOS 0.5.1 01/01/2007 [ 418.165750] Workqueue: kacpi_hotplug acpi_hotplug_work_fn [ 418.166433] 0000000000000021 ffff880038ca7988 ffffffff8159b22d 0000000000000021 [ 418.176460] ffff880038ca79d8 ffff880038ca79c8 ffffffff8106942c ffff880038ca79e8 [ 418.177453] ffff88003e20c3a0 ffff88003dc57600 ffff88003e20c3a0 00000000ffffffea [ 418.178445] Call Trace: [ 418.185811] [<ffffffff8159b22d>] dump_stack+0x49/0x5c [ 418.186440] [<ffffffff8106942c>] warn_slowpath_common+0x8c/0xc0 [ 418.187192] [<ffffffff81069516>] warn_slowpath_fmt+0x46/0x50 [ 418.191231] [<ffffffff8136ef51>] ? acpi_ns_get_node+0xb7/0xc7 [ 418.193889] [<ffffffff812f796e>] __list_add+0xbe/0xd0 [ 418.196649] [<ffffffff812e2aa9>] kobject_add_internal+0x79/0x200 [ 418.208610] [<ffffffff812e2e18>] kobject_add_varg+0x38/0x60 [ 418.213831] [<ffffffff812e2ef4>] kobject_add+0x44/0x70 [ 418.229961] [<ffffffff813e2c60>] device_add+0xd0/0x550 [ 418.234991] [<ffffffff813f0e95>] ? pm_runtime_init+0xe5/0xf0 [ 418.250226] [<ffffffff813e32be>] device_register+0x1e/0x30 [ 418.255296] [<ffffffff813e82a3>] register_cpu+0xe3/0x130 [ 418.266539] [<ffffffff81592be5>] arch_register_cpu+0x65/0x150 [ 418.285845] [<ffffffff81355c0d>] acpi_processor_hotadd_init+0x5a/0x9b ... Which is caused by the fact that generic_processor_info() allocates logical CPU id by calling: cpu = cpumask_next_zero(-1, cpu_present_mask); which returns id of previously failed to wake up CPU, since its bit is cleared by do_boot_cpu() and as result register_cpu() tries to register another CPU with the same id as already present but failed to be onlined CPU. Taking in account that AP will not do anything if master CPU failed to wake it up, there is no reason to mark that AP as not present and break next cpu hotplug attempts. As a side effect of not marking AP as not present, user would be allowed to online it again later. Also fix memory corruption in acpi_unmap_lsapic() if during CPU hotplug master CPU failed to wake up AP it set percpu x86_cpu_to_apicid to BAD_APICID=0xFFFF for AP. However following attempt to unplug that CPU will lead to out of bound write access to __apicid_to_node[] which is 32768 items long on x86_64 kernel. So with above fix of cpu_present_mask make sure that a present CPU has a valid APIC ID by not setting x86_cpu_to_apicid to BAD_APICID in do_boot_cpu() on failure and allow acpi_processor_remove()->acpi_unmap_lsapic() cleanly remove CPU. Signed-off-by: Igor Mammedov <imammedo@redhat.com> Acked-by: Toshi Kani <toshi.kani@hp.com> Cc: Thomas Gleixner <tglx@linutronix.de> Link: http://lkml.kernel.org/r/1401975765-22328-2-git-send-email-imammedo@redhat.com Signed-off-by: Ingo Molnar <mingo@kernel.org>
2014-06-05uprobes/x86: Rename arch_uprobe->def to ->defparam, minor comment updatesOleg Nesterov
Purely cosmetic, no changes in .o, 1. As Jim pointed out arch_uprobe->def looks ambiguous, rename it to ->defparam. 2. Add the comment into default_post_xol_op() to explain "regs->sp +=". 3. Remove the stale part of the comment in arch_uprobe_analyze_insn(). Suggested-by: Jim Keniston <jkenisto@us.ibm.com> Reviewed-by: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com> Acked-by: Srikar Dronamraju <srikar@linux.vnet.ibm.com> Signed-off-by: Oleg Nesterov <oleg@redhat.com>
2014-06-05Revert "xen/pvh: Update E820 to work with PVH (v2)"David Vrabel
This reverts commit 9103bb0f8240b2a55aac3ff7ecba9c7dcf66b08b. Now than xen_memory_setup() is not called for auto-translated guests, we can remove this commit. Signed-off-by: David Vrabel <david.vrabel@citrix.com> Acked-by: Roger Pau Monné <roger.pau@citrix.com> Tested-by: Roger Pau Monné <roger.pau@citrix.com>
2014-06-05x86/xen: fix memory setup for PVH dom0David Vrabel
Since af06d66ee32b (x86: fix setup of PVH Dom0 memory map) in Xen, PVH dom0 need only use the memory memory provided by Xen which has already setup all the correct holes. xen_memory_setup() then ends up being trivial for a PVH guest so introduce a new function (xen_auto_xlated_memory_setup()). Signed-off-by: David Vrabel <david.vrabel@citrix.com> Acked-by: Roger Pau Monné <roger.pau@citrix.com> Tested-by: Roger Pau Monné <roger.pau@citrix.com>
2014-06-05perf/x86: Add conditional branch filtering supportAnshuman Khandual
This patch adds conditional branch filtering support, enabling it for PERF_SAMPLE_BRANCH_COND in perf branch stack sampling framework by utilizing an available software filter X86_BR_JCC. Signed-off-by: Anshuman Khandual <khandual@linux.vnet.ibm.com> Reviewed-by: Stephane Eranian <eranian@google.com> Reviewed-by: Andi Kleen <ak@linux.intel.com> Signed-off-by: Peter Zijlstra <peterz@infradead.org> Cc: mpe@ellerman.id.au Cc: benh@kernel.crashing.org Cc: Arnaldo Carvalho de Melo <acme@kernel.org> Cc: Linus Torvalds <torvalds@linux-foundation.org> Link: http://lkml.kernel.org/r/1400743210-32289-3-git-send-email-khandual@linux.vnet.ibm.com Signed-off-by: Ingo Molnar <mingo@kernel.org>
2014-06-05perf/x86: Use common PMU interrupt disabled codeVince Weaver
Make the x86 perf code use the new common PMU interrupt disabled code. Typically most x86 machines have working PMU interrupts, although some older p6-class machines had this problem. Signed-off-by: Vince Weaver <vincent.weaver@maine.edu> Signed-off-by: Peter Zijlstra <peterz@infradead.org> Cc: Arnaldo Carvalho de Melo <acme@kernel.org> Cc: Linus Torvalds <torvalds@linux-foundation.org> Link: http://lkml.kernel.org/r/alpine.DEB.2.10.1405161715560.11099@vincent-weaver-1.umelst.maine.edu Signed-off-by: Ingo Molnar <mingo@kernel.org>
2014-06-05Merge commit '9e9a928eed8796a0a1aaed7e0b676db86ba84594' into drm-nextDave Airlie
Merge drm-fixes into drm-next. Both i915 and radeon need this done for later patches. Conflicts: drivers/gpu/drm/drm_crtc_helper.c drivers/gpu/drm/i915/i915_drv.h drivers/gpu/drm/i915/i915_gem.c drivers/gpu/drm/i915/i915_gem_execbuffer.c drivers/gpu/drm/i915/i915_gem_gtt.c
2014-06-05Merge branch 'perf/kprobes' into perf/coreIngo Molnar
Conflicts: arch/x86/kernel/traps.c The kprobes enhancements are fully cooked, ship them upstream. Signed-off-by: Ingo Molnar <mingo@kernel.org>
2014-06-05Merge branch 'perf/uprobes' into perf/coreIngo Molnar
These bits from Oleg are fully cooked, ship them to Linus. Signed-off-by: Ingo Molnar <mingo@kernel.org>
2014-06-04Merge branch 'akpm' (patchbomb from Andrew) into nextLinus Torvalds
Merge misc updates from Andrew Morton: - a few fixes for 3.16. Cc'ed to stable so they'll get there somehow. - various misc fixes and cleanups - most of the ocfs2 queue. Review is slow... - most of MM. The MM queue is pretty huge this time, but not much in the way of feature work. - some tweaks under kernel/ - printk maintenance work - updates to lib/ - checkpatch updates - tweaks to init/ * emailed patches from Andrew Morton <akpm@linux-foundation.org>: (276 commits) fs/autofs4/dev-ioctl.c: add __init to autofs_dev_ioctl_init fs/ncpfs/getopt.c: replace simple_strtoul by kstrtoul init/main.c: remove an ifdef kthreads: kill CLONE_KERNEL, change kernel_thread(kernel_init) to avoid CLONE_SIGHAND init/main.c: add initcall_blacklist kernel parameter init/main.c: don't use pr_debug() fs/binfmt_flat.c: make old_reloc() static fs/binfmt_elf.c: fix bool assignements fs/efs: convert printk(KERN_DEBUG to pr_debug fs/efs: add pr_fmt / use __func__ fs/efs: convert printk to pr_foo() scripts/checkpatch.pl: device_initcall is not the only __initcall substitute checkpatch: check stable email address checkpatch: warn on unnecessary void function return statements checkpatch: prefer kstrto<foo> to sscanf(buf, "%<lhuidx>", &bar); checkpatch: add warning for kmalloc/kzalloc with multiply checkpatch: warn on #defines ending in semicolon checkpatch: make --strict a default for files in drivers/net and net/ checkpatch: always warn on missing blank line after variable declaration block checkpatch: fix wildcard DT compatible string checking ...
2014-06-04kernel/printk: use symbolic defines for console loglevelsBorislav Petkov
... instead of naked numbers. Stuff in sysrq.c used to set it to 8 which is supposed to mean above default level so set it to DEBUG instead as we're terminating/killing all tasks and we want to be verbose there. Also, correct the check in x86_64_start_kernel which should be >= as we're clearly issuing the string there for all debug levels, not only the magical 10. Signed-off-by: Borislav Petkov <bp@suse.de> Acked-by: Kees Cook <keescook@chromium.org> Acked-by: Randy Dunlap <rdunlap@infradead.org> Cc: Joe Perches <joe@perches.com> Cc: Valdis Kletnieks <Valdis.Kletnieks@vt.edu> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2014-06-04sys_sgetmask/sys_ssetmask: add CONFIG_SGETMASK_SYSCALLFabian Frederick
sys_sgetmask and sys_ssetmask are obsolete system calls no longer supported in libc. This patch replaces architecture related __ARCH_WANT_SYS_SGETMAX by expert mode configuration.That option is enabled by default for those architectures. Signed-off-by: Fabian Frederick <fabf@skynet.be> Cc: Steven Miao <realmz6@gmail.com> Cc: Mikael Starvik <starvik@axis.com> Cc: Jesper Nilsson <jesper.nilsson@axis.com> Cc: David Howells <dhowells@redhat.com> Cc: Geert Uytterhoeven <geert@linux-m68k.org> Cc: Michal Simek <monstr@monstr.eu> Cc: Ralf Baechle <ralf@linux-mips.org> Cc: Koichi Yasutake <yasutake.koichi@jp.panasonic.com> Cc: "James E.J. Bottomley" <jejb@parisc-linux.org> Cc: Helge Deller <deller@gmx.de> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Paul Mackerras <paulus@samba.org> Cc: "David S. Miller" <davem@davemloft.net> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Ingo Molnar <mingo@redhat.com> Cc: "H. Peter Anvin" <hpa@zytor.com> Cc: Greg Ungerer <gerg@uclinux.org> Cc: Heiko Carstens <heiko.carstens@de.ibm.com> Cc: Oleg Nesterov <oleg@redhat.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2014-06-04hwpoison: remove unused global variable in do_machine_check()Chen Yucong
Remove an unused global variable mce_entry and relative operations in do_machine_check(). Signed-off-by: Chen Yucong <slaoub@gmail.com> Cc: Naoya Horiguchi <n-horiguchi@ah.jp.nec.com> Cc: Wu Fengguang <fengguang.wu@intel.com> Cc: Andi Kleen <andi@firstfloor.org> Cc: Ingo Molnar <mingo@elte.hu> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: "H. Peter Anvin" <hpa@zytor.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>