Commit Graph

6215 Commits

Author SHA1 Message Date
Linus Torvalds d0bbe0dd35 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial
Pull trivial tree from Jiri Kosina:
 "Usual trivial tree updates.  Nothing outstanding -- mostly printk()
  and comment fixes and unused identifier removals"

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial:
  goldfish: goldfish_tty_probe() is not using 'i' any more
  powerpc: Fix comment in smu.h
  qla2xxx: Fix printks in ql_log message
  lib: correct link to the original source for div64_u64
  si2168, tda10071, m88ds3103: Fix firmware wording
  usb: storage: Fix printk in isd200_log_config()
  qla2xxx: Fix printk in qla25xx_setup_mode
  init/main: fix reset_device comment
  ipwireless: missing assignment
  goldfish: remove unreachable line of code
  coredump: Fix do_coredump() comment
  stacktrace.h: remove duplicate declaration task_struct
  smpboot.h: Remove unused function prototype
  treewide: Fix typo in printk messages
  treewide: Fix typo in printk messages
  mod_devicetable: fix comment for match_flags
2015-04-14 09:50:27 -07:00
Linus Torvalds b79013b244 Merge tag 'staging-4.1-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging
Pull staging driver updates from Greg KH:
 "Here's the big staging driver patchset for 4.1-rc1.

  There's a lot of patches here, the Outreachy application period
  happened during this development cycle, so that means that there was a
  lot of cleanup patches accepted.  Other than the normal coding style
  and sparse fixes here, there are some driver updates and work toward
  making some of the drivers into "mergable" shape (like the Unisys
  drivers.)

  All of these have been in linux-next for a while"

* tag 'staging-4.1-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging: (1214 commits)
  staging: lustre: orthography & coding style
  staging: lustre: lnet: lnet: fix error return code
  staging: lustre: fix sparse warning
  Revert "Staging: sm750fb: Fix C99 Comments"
  Staging: rtl8192u: use correct array for debug output
  staging: rtl8192e: Remove dead code
  staging: rtl8192e: Comment cleanup (style/format)
  staging: rtl8192e: Fix indentation in rtllib_rx_auth_resp()
  staging: rtl8192e: Decrease nesting of rtllib_rx_auth_resp()
  staging: rtl8192e: Divide rtllib_rx_auth()
  staging: rtl8192e: Fix PRINTK_WITHOUT_KERN_LEVEL warnings
  staging: rtl8192e: Fix DO_WHILE_MACRO_WITH_TRAILING_SEMICOLON warning
  staging: rtl8192e: Fix BRACES warning
  staging: rtl8192e: Fix LINE_CONTINUATIONS warning
  staging: rtl8192e: Fix UNNECESSARY_PARENTHESES warnings
  staging: rtl8192e: remove unused EXPORT_SYMBOL_RSL macro
  staging: rtl8192e: Fix RETURN_VOID warnings
  staging: rtl8192e: Fix UNNECESSARY_ELSE warning
  staging: rtl8723au: Remove unneeded comments
  staging: rtl8723au: Use __func__ in trace logs
  ...
2015-04-13 17:37:33 -07:00
Linus Torvalds 60f898eeaa Merge branch 'x86-asm-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 asm changes from Ingo Molnar:
 "There were lots of changes in this development cycle:

   - over 100 separate cleanups, restructuring changes, speedups and
     fixes in the x86 system call, irq, trap and other entry code, part
     of a heroic effort to deobfuscate a decade old spaghetti asm code
     and its C code dependencies (Denys Vlasenko, Andy Lutomirski)

   - alternatives code fixes and enhancements (Borislav Petkov)

   - simplifications and cleanups to the compat code (Brian Gerst)

   - signal handling fixes and new x86 testcases (Andy Lutomirski)

   - various other fixes and cleanups

  By their nature many of these changes are risky - we tried to test
  them well on many different x86 systems (there are no known
  regressions), and they are split up finely to help bisection - but
  there's still a fair bit of residual risk left so caveat emptor"

* 'x86-asm-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (148 commits)
  perf/x86/64: Report regs_user->ax too in get_regs_user()
  perf/x86/64: Simplify regs_user->abi setting code in get_regs_user()
  perf/x86/64: Do report user_regs->cx while we are in syscall, in get_regs_user()
  perf/x86/64: Do not guess user_regs->cs, ss, sp in get_regs_user()
  x86/asm/entry/32: Tidy up JNZ instructions after TESTs
  x86/asm/entry/64: Reduce padding in execve stubs
  x86/asm/entry/64: Remove GET_THREAD_INFO() in ret_from_fork
  x86/asm/entry/64: Simplify jumps in ret_from_fork
  x86/asm/entry/64: Remove a redundant jump
  x86/asm/entry/64: Optimize [v]fork/clone stubs
  x86/asm/entry: Zero EXTRA_REGS for stub32_execve() too
  x86/asm/entry/64: Move stub_x32_execvecloser() to stub_execveat()
  x86/asm/entry/64: Use common code for rt_sigreturn() epilogue
  x86/asm/entry/64: Add forgotten CFI annotation
  x86/asm/entry/irq: Simplify interrupt dispatch table (IDT) layout
  x86/asm/entry/64: Move opportunistic sysret code to syscall code path
  x86, selftests: Add sigreturn selftest
  x86/alternatives: Guard NOPs optimization
  x86/asm/entry: Clear EXTRA_REGS for all executable formats
  x86/signal: Remove pax argument from restore_sigcontext
  ...
2015-04-13 13:16:36 -07:00
Linus Torvalds 4541fec310 Merge tag 'linux-kselftest-4.1-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest
Pull kselftest updates from Shuah Khan:
 "This is a milestone update in a sense.  Several new tests and install
  and packaging support is added in this update.

  This update adds install and packaging tools developed on top of
  back-end shared logic enhancemnets to run and install tests.  In
  addition several timer tests are added.

   - New timer tests from John Stultz

   - rtc test from Prarit Bhargava

   - Enhancements to un and install tests from Michael Ellerman

   - Install and packaging tools from Shuah Khan

   - Cross-compilation enablement from Tyler Baker

   - A couple of bug fixes"

* tag 'linux-kselftest-4.1-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest: (42 commits)
  ftracetest: Do not use usleep directly
  selftest/mqueue: enable cross compilation
  selftest/ipc: enable cross compilation
  selftest/memfd: include default header install path
  selftest/mount: enable cross compilation
  selftest/memfd: enable cross compilation
  kselftests: timers: Make set-timer-lat fail more gracefully for !CAP_WAKE_ALARM
  selftests: Change memory on-off-test.sh name to be unique
  selftests: change cpu on-off-test.sh name to be unique
  selftests/mount: Make git ignore all binaries in mount test suite
  kselftests: timers: Reduce default runtime on inconsistency-check and set-timer-lat
  ftracetest: Convert exit -1 to exit $FAIL
  ftracetest: Cope properly with stack tracer not being enabled
  tools, update rtctest.c to verify passage of time
  Documentation, split up rtc.txt into documentation and test file
  selftests: Add tool to generate kselftest tar archive
  selftests: Add kselftest install tool
  selftests: Set CC using CROSS_COMPILE once in lib.mk
  selftests: Add install support for the powerpc tests
  selftests/timers: Use shared logic to run and install tests
  ...
2015-04-13 08:59:21 -07:00
Ingo Molnar 4bcc7827b0 Merge tag 'v4.0-rc7' into x86/asm, to resolve conflicts
Conflicts:
	arch/x86/kernel/entry_64.S

Signed-off-by: Ingo Molnar <mingo@kernel.org>
2015-04-08 09:01:54 +02:00
Andy Lutomirski 3f705dfdf8 x86, selftests: Add sigreturn selftest
This is my sigreturn test, added mostly unchanged from its old
home. It exercises the sigreturn(2) syscall, specifically
focusing on its interactions with various IRET corner cases.

It tests for correct behavior in several areas that were
historically dangerously buggy. For example, it exercises espfix
on kernels of both bitnesses under various conditions, and it
contains testcases for several now-fixed bugs in IRET error
handling.

If you run it on older kernels without the fixes, your system will
crash. It probably won't eat your data in the process.

There is no released kernel on which the sigreturn_64 test will
pass, but it passes on tip:x86/asm.

I plan to switch to lib.mk for Linux 4.2.

I'm not using the ksft_ helpers at all yet.  I can do that later.

Signed-off-by: Andy Lutomirski <luto@kernel.org>
Acked-by: Shuah Khan <shuahkh@osg.samsung.com>
Cc: Andy Lutomirski <luto@amacapital.net>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Brian Gerst <brgerst@gmail.com>
Cc: Denys Vlasenko <dvlasenk@redhat.com>
Cc: Denys Vlasenko <vda.linux@googlemail.com>
Cc: H. Peter Anvin <hpa@zytor.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Michael Ellerman <mpe@ellerman.id.au>
Cc: Shuah Khan <shuah.kh@samsung.com>
Cc: Steven Rostedt <rostedt@goodmis.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Link: http://lkml.kernel.org/r/89d10b76b92c7202d8123654dc8d36701c017b3d.1428386971.git.luto@kernel.org
[ Fixed empty format string GCC build warning in trivial_32bit_program.c ]
Signed-off-by: Ingo Molnar <mingo@kernel.org>
2015-04-08 08:22:02 +02:00
Greg Kroah-Hartman c610f7f772 Merge 4.0-rc7 into staging-next
We want those fixes (iio primarily) into the -next branch to help with
merge and testing issues.

Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-04-07 11:03:02 +02:00
Namhyung Kim 2bfd4d1f8c ftracetest: Do not use usleep directly
The usleep is only provided on distros from Redhat so running ftracetest
on other distro resulted in failures due to the missing usleep.

The reason of using [u]sleep in the test was to generate (scheduler)
events.  It can be done various ways like this:

yield() {  ping localhost -c 1 || sleep .001 || usleep 1 || sleep 1; }

For more information to the history of this patch, please refer to:

Link: http://lkml.kernel.org/r/1427329943-16896-1-git-send-email-namhyung@kernel.org

Reported-by: Michael Ellerman <mpe@ellerman.id.au>
Reported-by: Dave Jones <davej@codemonkey.org.uk>
Reported-by: Luis Henriques <luis.henriques@canonical.com>
Suggested-by: Pádraig Brady <P@draigBrady.com>
Acked-by: Steven Rostedt <rostedt@goodmis.org>
Acked-by: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com>
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Signed-off-by: Shuah Khan <shuahkh@osg.samsung.com>
2015-04-03 09:16:32 -06:00
Tyler Baker 6886f41d88 selftest/mqueue: enable cross compilation
Use the CC variable instead of hard coding gcc. Also clean up the compiler
options by creating a CFLAGS variable.

Signed-off-by: Tyler Baker <tyler.baker@linaro.org>
Signed-off-by: Shuah Khan <shuahkh@osg.samsung.com>
2015-04-02 12:41:58 -06:00
Tyler Baker 5de8304904 selftest/ipc: enable cross compilation
Use the CC variable instead of hard coding gcc.

Signed-off-by: Tyler Baker <tyler.baker@linaro.org>
Signed-off-by: Shuah Khan <shuahkh@osg.samsung.com>
2015-04-02 12:41:52 -06:00
Tyler Baker ab923bb9e2 selftest/memfd: include default header install path
Include the default path for INSTALL_HDR_PATH to make it less intrusive when
cross building.

Signed-off-by: Tyler Baker <tyler.baker@linaro.org>
Signed-off-by: Shuah Khan <shuahkh@osg.samsung.com>
2015-04-02 12:41:03 -06:00
Tyler Baker 365ce9997b selftest/mount: enable cross compilation
Use the CC variable instead of hard coding gcc. Also clean up the compiler
options by creating a CFLAGS variable.

Signed-off-by: Tyler Baker <tyler.baker@linaro.org>
Signed-off-by: Shuah Khan <shuahkh@osg.samsung.com>
2015-04-02 12:40:48 -06:00
Tyler Baker 52dd5576cd selftest/memfd: enable cross compilation
Use the CC variable instead of hard coding gcc. Also clean up the compiler
options by creating a CFLAGS variable.

Signed-off-by: Tyler Baker <tyler.baker@linaro.org>
Signed-off-by: Shuah Khan <shuahkh@osg.samsung.com>
2015-04-02 12:40:34 -06:00
John Stultz 48fd77d144 kselftests: timers: Make set-timer-lat fail more gracefully for !CAP_WAKE_ALARM
The set-timer-lat test fails when testing CLOCK_BOOTTIME_ALARM
or CLOCK_REALTIME_ALARM when the user isn't running as root or
with CAP_WAKE_ALARM.

So this patch improves the error checking so we report the
issue more clearly and continue rather then reporting a failure.

Cc: Shuah Khan <shuahkh@osg.samsung.com>
Cc: Prarit Bhargava <prarit@redhat.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Richard Cochran <richardcochran@gmail.com>
Signed-off-by: John Stultz <john.stultz@linaro.org>
Signed-off-by: Shuah Khan <shuahkh@osg.samsung.com>
2015-04-02 10:32:33 -06:00
Shuah Khan 072264fee8 selftests: Change memory on-off-test.sh name to be unique
cpu and memory hotplug scripts use the same name. Change
memory on-off-test.sh to mem-on-off-test.sh.

Signed-off-by: Shuah Khan <shuahkh@osg.samsung.com>
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-04-01 10:33:02 -06:00
Shuah Khan cc16782169 selftests: change cpu on-off-test.sh name to be unique
cpu and memory hotplug scripts use the same name. Change
cpu on-off-test.sh to cpu-on-off-test.sh.

Signed-off-by: Shuah Khan <shuahkh@osg.samsung.com>
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-04-01 10:32:52 -06:00
Zhang Zhen 8f3d734643 selftests/mount: Make git ignore all binaries in mount test suite
This patch includes the mount test binaries into the .gitignore
file listing in their respective directories. This will make sure
that git ignores all of these test binaries when displaying status.

Signed-off-by: Zhang Zhen <zhenzhang.zhang@huawei.com>
Signed-off-by: Shuah Khan <shuahkh@osg.samsung.com>
2015-03-31 14:09:38 -06:00
John Stultz e48f284d63 kselftests: timers: Reduce default runtime on inconsistency-check and set-timer-lat
For the default run_timers target, the timers tests takes the
majority of kselftests runtime.

So this patch reduces the default runtime for inconsistentcy-check
and set-timer-lat, which reduced the runtime almost in half.

Before:	11m48.629s
After:	6m47.723s

Cc: Shuah Khan <shuahkh@osg.samsung.com>
Cc: Prarit Bhargava <prarit@redhat.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Richard Cochran <richardcochran@gmail.com>
Signed-off-by: John Stultz <john.stultz@linaro.org>
Signed-off-by: Shuah Khan <shuahkh@osg.samsung.com>
2015-03-31 13:44:32 -06:00
Michael Ellerman 44164c4ba9 ftracetest: Convert exit -1 to exit $FAIL
POSIX says that exit takes an unsigned integer between 0 and 255, so
using -1 doesn't work on POSIX shells.

There is already a well-defined failure code, $FAIL (1), so use that.

Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Acked-by: Steven Rostedt <rostedt@goodmis.org>
Signed-off-by: Shuah Khan <shuahkh@osg.samsung.com>
2015-03-31 10:15:46 -06:00
Michael Ellerman a05ffdce71 ftracetest: Cope properly with stack tracer not being enabled
If the stack tracer (CONFIG_STACK_TRACER) is disabled, the
fgraph-filter-stack test blows chunks:

  [8] ftrace - function graph filters with stack tracer	[FAIL]
  + reset_tracer
  + echo nop
  ./ftracetest: 19: /home/michael/selftests/ftrace/test.d/ftrace/fgraph-filter-stack.tc:
  	cannot create /proc/sys/kernel/stack_tracer_enabled: Directory nonexistent

Fix it by checking if the proc file exists before echoing to it. With
the patch applied it fails correctly with:

  [8] ftrace - function graph filters with stack tracer	[UNSUPPORTED]

Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Acked-by: Steven Rostedt <rostedt@goodmis.org>
Signed-off-by: Shuah Khan <shuahkh@osg.samsung.com>
2015-03-31 10:15:36 -06:00
Irina Tirdea d9d7b99047 tools: iio: generic_buffer: Fix generic scale extraction
When using generic_buffer to read data, the scale is not properly
detected for scale shared by type. This is caused by a problem
with the generation of generic name out of the full name.
E.g.: for current->name in_accel_z, the extracted generic name
is "in" (when it should be "in_accel"). This is used in generic_buffer
to generate scale and offset paths (in_accel_scale).

Consider the in_ or out_ prefix when extracting the generic name
from the full name.

Signed-off-by: Irina Tirdea <irina.tirdea@intel.com>
Reviewed-by: Daniel Baluta <daniel.baluta@intel.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2015-03-28 11:01:49 +00:00
Linus Torvalds 0e536e2516 Merge tag 'linux-kselftest-4.0-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest
Pull kselftest fix from Shuah Khan.

* tag 'linux-kselftest-4.0-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest:
  selftests: Fix build failures when invoked from kselftest target
2015-03-26 14:43:42 -07:00
Prarit Bhargava 0b63accf87 tools, update rtctest.c to verify passage of time
rtctest.c checks to see if PIE is functioning by testing if 20 interrupts occur
at rates from 2HZ to 64HZ.  While this check is good, it does not check to
see if the correct amount of time has actually passed.  This misses
situations where the RTC may be operating at a higher or lower frequency
than expected.

This patch introduces a simple check to verify if the time passed is
less than 10% of what was programmed into the RTC.

Signed-off-by: Prarit Bhargava <prarit@redhat.com>
Acked-by: John Stultz <john.stultz@linaro.org>
Cc: corbet@lwn.net
Cc: rtc-linux@googlegroups.com
Cc: linux-doc@vger.kernel.org
Cc: a.zummo@towertech.it
Cc: prarit@redhat.com
Cc: john.stultz@linaro.org
Cc: shuahkh@osg.samsung.com
Signed-off-by: Shuah Khan <shuahkh@osg.samsung.com>
2015-03-24 22:02:59 -06:00
Prarit Bhargava 4a5fd81507 Documentation, split up rtc.txt into documentation and test file
This patch splits rtc.txt into two separate files, one for the
documentation itself, and the other for the rtctest.c file.  The rtctest
file is moved into the kernel tools/testing/selftests/timers directory.
This will make automated testing easier.  Note that the only difference in
the rtc.txt file is that the location of the rtctest.c file has changed.

Signed-off-by: Prarit Bhargava <prarit@redhat.com>
Acked-by: Jonathan Corbet <corbet@lwn.net>
Acked-by: John Stultz <john.stultz@linaro.org>
Cc: corbet@lwn.net
Cc: rtc-linux@googlegroups.com
Cc: linux-doc@vger.kernel.org
Cc: a.zummo@towertech.it
Cc: prarit@redhat.com
Cc: john.stultz@linaro.org
Cc: shuahkh@osg.samsung.com
Signed-off-by: Shuah Khan <shuahkh@osg.samsung.com>
2015-03-24 22:01:58 -06:00
Greg Kroah-Hartman dc5f2c5f6a Merge tag 'iio-for-4.1a' of git://git.kernel.org/pub/scm/linux/kernel/git/jic23/iio into staging-next
Jonathan writes:

First set of new drivers, cleanups and functionality for IIO in the 4.1 cycle.

New drivers
* CM3323 color sensor.
* MS5611 pressure and temperature sensor.

New functionality
* mup6050 - create mux clients for devices described via ACPI. The reasoning
     and approach taken in this patch are complex.  Basically there is no
     otherway of finding out what is there than by some esoteric look ups in
     the ACPI data.
* cm3232 - PM support
* itg3200 - suspend/resume support
* mcp320x - add more ADCs to the kconfig to reflect what the driver supports
     (this patch and the bindings got left behind when the support was added
      a while back).

Docs / utils
* ti-adc128s052 - DT bindings.
* mcp3422 - DT bindings.
* mcp320x - DT bindings
* ABI docs for event threshold scale attributes, in_magn_offset, proximity
  scan_element and thresh falling/rising values for accelerometers.  All
  elements long in use that have slipped by being explicitly documented.
* Tidy up the tools previously in drivers/staging/iio/Documentation and move
  them out to /tools/iio. Yet another move that should have happened long ago.
  This time Roberta Dobrescu did the leg work.  Thanks!

Core Cleanups
* Export userspace IIO headers.  We should have done the appropriate header
  splitting a long time ago. Thanks to Daniel for sorting this out.

* Refactor the registring of attributes for buffers to move all non-custom
  ones to a vector allowing easier additions to the current set in the future.

Driver Cleanups
* gpiod related cleanups.  Make use of the additional parameter to specify
  	initial direciton to avoid extra code.
* bmc150 - Various refactorings to reduce code repitition and prepare for
           hardware buffer support.  Some of these cleanups are good even
	   without the new functionality.
* kmx61 - direct use of index to an array avoiding a structure element which
          was always the index to an element in an array of that structure.
* vf610 - avoid incorrect type for return from wait_for_completion_timeout.
* gp2ap020a00f - use put_unaligned_le32 for slight code simplification.
* ade7754 - improve error handling including suppressing some build warnings.
* ade7759 - improve error handling including suppressing some build warnings.
* hmc5843 - Long line and indentation fixes. Also some constifying of various
      constant data.
* ade7854 - 80+ character line splitting.
* ad2s1210 - fix wrong printf format string.
* mxs-lradc - fix wrong printf format string.
* ade7954-i2c - code alignment fixes and other trivial but worthwhile bits.
* periodic rtc trigger - make the frequency type an unsigned int as it
  is always treated as such.
* jsa1212 - constify struct regmap_config as it is constant.
* ad7793 - typo in the MODULE_DESCRIPTION
* mma9551 - check gpiod_to_irq errors.  Note that this doesn't actually cause
    any trouble but is worth tidying up as obviously incorrect.
* mlx90614 - refactor the register symbols to make it clear which reads are to
    RAM not PROM.
2015-03-24 22:53:52 +01:00