Commit Graph

2594 Commits

Author SHA1 Message Date
Andi Kleen
77ab21adae Kbuild, lto, workaround: Don't warn for initcall_reference in modpost
This reference is discarded, but can cause warnings when it refers to
exit. Ignore for now.

This is a workaround and can be removed once we get rid of
-fno-toplevel-reorder

Signed-off-by: Andi Kleen <ak@linux.intel.com>
Link: http://lkml.kernel.org/r/1391846481-31491-7-git-send-email-ak@linux.intel.com
Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
2014-02-13 20:24:56 -08:00
Linus Torvalds
5cb480f6b4 Merge branch 'misc' of git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild
Pull misc kbuild changes from Michal Marek:
 "The non-critical part of kbuild is small this time:
   - Three fixes for make deb-pkg
   - A new coccinelle check

  One of the deb-pkg fixes is a leftover from the last merge window,
  hence the merge commit"

* 'misc' of git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild:
  deb-pkg: Fix building for MIPS big-endian or ARM OABI
  deb-pkg: Fix cross-building linux-headers package
  scripts: Coccinelle script for pm_runtime_* return checks with IS_ERR_VALUE
  deb-pkg: Inhibit initramfs builders if CONFIG_BLK_DEV_INITRD is not set
2014-02-01 11:03:16 -08:00
Linus Torvalds
597690cd02 Merge branch 'kbuild' of git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild
Pull kbuild changes from Michal Marek:
 - fix make -s detection with make-4.0
 - fix for scripts/setlocalversion when the kernel repository is a
   submodule
 - do not hardcode ';' in macros that expand to assembler code, as some
   architectures' assemblers use a different character for newline
 - Fix passing --gdwarf-2 to the assembler

* 'kbuild' of git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild:
  frv: Remove redundant debugging info flag
  mn10300: Remove redundant debugging info flag
  kbuild: Fix debugging info generation for .S files
  arch: use ASM_NL instead of ';' for assembler new line character in the macro
  kbuild: Fix silent builds with make-4
  Fix detectition of kernel git repository in setlocalversion script [take #2]
2014-01-30 16:58:05 -08:00
Linus Torvalds
54c0a4b461 Merge branch 'akpm' (incoming from Andrew)
Merge misc updates from Andrew Morton:

 - a few hotfixes

 - dynamic-debug updates

 - ipc updates

 - various other sweepings off the factory floor

* akpm: (31 commits)
  firmware/google: drop 'select EFI' to avoid recursive dependency
  compat: fix sys_fanotify_mark
  checkpatch.pl: check for function declarations without arguments
  mm/migrate.c: fix setting of cpupid on page migration twice against normal page
  softirq: use const char * const for softirq_to_name, whitespace neatening
  softirq: convert printks to pr_<level>
  softirq: use ffs() in __do_softirq()
  kernel/kexec.c: use vscnprintf() instead of vsnprintf() in vmcoreinfo_append_str()
  splice: fix unexpected size truncation
  ipc: fix compat msgrcv with negative msgtyp
  ipc,msg: document barriers
  ipc: delete seq_max field in struct ipc_ids
  ipc: simplify sysvipc_proc_open() return
  ipc: remove useless return statement
  ipc: remove braces for single statements
  ipc: standardize code comments
  ipc: whitespace cleanup
  ipc: change kern_ipc_perm.deleted type to bool
  ipc: introduce ipc_valid_object() helper to sort out IPC_RMID races
  ipc/sem.c: avoid overflow of semop undo (semadj) value
  ...
2014-01-27 21:17:55 -08:00
Linus Torvalds
1b17366d69 Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc
Pull powerpc updates from Ben Herrenschmidt:
 "So here's my next branch for powerpc.  A bit late as I was on vacation
  last week.  It's mostly the same stuff that was in next already, I
  just added two patches today which are the wiring up of lockref for
  powerpc, which for some reason fell through the cracks last time and
  is trivial.

  The highlights are, in addition to a bunch of bug fixes:

   - Reworked Machine Check handling on kernels running without a
     hypervisor (or acting as a hypervisor).  Provides hooks to handle
     some errors in real mode such as TLB errors, handle SLB errors,
     etc...

   - Support for retrieving memory error information from the service
     processor on IBM servers running without a hypervisor and routing
     them to the memory poison infrastructure.

   - _PAGE_NUMA support on server processors

   - 32-bit BookE relocatable kernel support

   - FSL e6500 hardware tablewalk support

   - A bunch of new/revived board support

   - FSL e6500 deeper idle states and altivec powerdown support

  You'll notice a generic mm change here, it has been acked by the
  relevant authorities and is a pre-req for our _PAGE_NUMA support"

* 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc: (121 commits)
  powerpc: Implement arch_spin_is_locked() using arch_spin_value_unlocked()
  powerpc: Add support for the optimised lockref implementation
  powerpc/powernv: Call OPAL sync before kexec'ing
  powerpc/eeh: Escalate error on non-existing PE
  powerpc/eeh: Handle multiple EEH errors
  powerpc: Fix transactional FP/VMX/VSX unavailable handlers
  powerpc: Don't corrupt transactional state when using FP/VMX in kernel
  powerpc: Reclaim two unused thread_info flag bits
  powerpc: Fix races with irq_work
  Move precessing of MCE queued event out from syscall exit path.
  pseries/cpuidle: Remove redundant call to ppc64_runlatch_off() in cpu idle routines
  powerpc: Make add_system_ram_resources() __init
  powerpc: add SATA_MV to ppc64_defconfig
  powerpc/powernv: Increase candidate fw image size
  powerpc: Add debug checks to catch invalid cpu-to-node mappings
  powerpc: Fix the setup of CPU-to-Node mappings during CPU online
  powerpc/iommu: Don't detach device without IOMMU group
  powerpc/eeh: Hotplug improvement
  powerpc/eeh: Call opal_pci_reinit() on powernv for restoring config space
  powerpc/eeh: Add restore_config operation
  ...
2014-01-27 21:11:26 -08:00
Joe Perches
b36190c5f8 checkpatch.pl: check for function declarations without arguments
Functions like this one are evil:

void foo()
{
	...
}

Because these functions allow variadic arguments without
checking the arguments at all.

Original patch by Richard Weinberger.

Signed-off-by: Joe Perches <joe@perches.com>
Cc: Richard Weinberger <richard@nod.at>
Cc: Borislav Petkov <bp@alien8.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2014-01-27 21:02:40 -08:00
Linus Torvalds
09da8dfa98 ACPI and power management updates for 3.14-rc1
- ACPI core changes to make it create a struct acpi_device object for every
    device represented in the ACPI tables during all namespace scans regardless
    of the current status of that device.  In accordance with this, ACPI hotplug
    operations will not delete those objects, unless the underlying ACPI tables
    go away.
 
  - On top of the above, new sysfs attribute for ACPI device objects allowing
    user space to check device status by triggering the execution of _STA for
    its ACPI object.  From Srinivas Pandruvada.
 
  - ACPI core hotplug changes reducing code duplication, integrating the
    PCI root hotplug with the core and reworking container hotplug.
 
  - ACPI core simplifications making it use ACPI_COMPANION() in the code
    "glueing" ACPI device objects to "physical" devices.
 
  - ACPICA update to upstream version 20131218.  This adds support for the
    DBG2 and PCCT tables to ACPICA, fixes some bugs and improves debug
    facilities.  From Bob Moore, Lv Zheng and Betty Dall.
 
  - Init code change to carry out the early ACPI initialization earlier.
    That should allow us to use ACPI during the timekeeping initialization
    and possibly to simplify the EFI initialization too.  From Chun-Yi Lee.
 
  - Clenups of the inclusions of ACPI headers in many places all over from
    Lv Zheng and Rashika Kheria (work in progress).
 
  - New helper for ACPI _DSM execution and rework of the code in drivers
    that uses _DSM to execute it via the new helper.  From Jiang Liu.
 
  - New Win8 OSI blacklist entries from Takashi Iwai.
 
  - Assorted ACPI fixes and cleanups from Al Stone, Emil Goode, Hanjun Guo,
    Lan Tianyu, Masanari Iida, Oliver Neukum, Prarit Bhargava, Rashika Kheria,
    Tang Chen, Zhang Rui.
 
  - intel_pstate driver updates, including proper Baytrail support, from
    Dirk Brandewie and intel_pstate documentation from Ramkumar Ramachandra.
 
  - Generic CPU boost ("turbo") support for cpufreq from Lukasz Majewski.
 
  - powernow-k6 cpufreq driver fixes from Mikulas Patocka.
 
  - cpufreq core fixes and cleanups from Viresh Kumar, Jane Li, Mark Brown.
 
  - Assorted cpufreq drivers fixes and cleanups from Anson Huang, John Tobias,
    Paul Bolle, Paul Walmsley, Sachin Kamat, Shawn Guo, Viresh Kumar.
 
  - cpuidle cleanups from Bartlomiej Zolnierkiewicz.
 
  - Support for hibernation APM events from Bin Shi.
 
  - Hibernation fix to avoid bringing up nonboot CPUs with ACPI EC disabled
    during thaw transitions from Bjørn Mork.
 
  - PM core fixes and cleanups from Ben Dooks, Leonardo Potenza, Ulf Hansson.
 
  - PNP subsystem fixes and cleanups from Dmitry Torokhov, Levente Kurusa,
    Rashika Kheria.
 
  - New tool for profiling system suspend from Todd E Brandt and a cpupower
    tool cleanup from One Thousand Gnomes.
 
 /
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Merge tag 'pm+acpi-3.14-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm

Pull ACPI and power management updates from Rafael Wysocki:
 "As far as the number of commits goes, the top spot belongs to ACPI
  this time with cpufreq in the second position and a handful of PM
  core, PNP and cpuidle updates.  They are fixes and cleanups mostly, as
  usual, with a couple of new features in the mix.

  The most visible change is probably that we will create struct
  acpi_device objects (visible in sysfs) for all devices represented in
  the ACPI tables regardless of their status and there will be a new
  sysfs attribute under those objects allowing user space to check that
  status via _STA.

  Consequently, ACPI device eject or generally hot-removal will not
  delete those objects, unless the table containing the corresponding
  namespace nodes is unloaded, which is extremely rare.  Also ACPI
  container hotplug will be handled quite a bit differently and cpufreq
  will support CPU boost ("turbo") generically and not only in the
  acpi-cpufreq driver.

  Specifics:

   - ACPI core changes to make it create a struct acpi_device object for
     every device represented in the ACPI tables during all namespace
     scans regardless of the current status of that device.  In
     accordance with this, ACPI hotplug operations will not delete those
     objects, unless the underlying ACPI tables go away.

   - On top of the above, new sysfs attribute for ACPI device objects
     allowing user space to check device status by triggering the
     execution of _STA for its ACPI object.  From Srinivas Pandruvada.

   - ACPI core hotplug changes reducing code duplication, integrating
     the PCI root hotplug with the core and reworking container hotplug.

   - ACPI core simplifications making it use ACPI_COMPANION() in the
     code "glueing" ACPI device objects to "physical" devices.

   - ACPICA update to upstream version 20131218.  This adds support for
     the DBG2 and PCCT tables to ACPICA, fixes some bugs and improves
     debug facilities.  From Bob Moore, Lv Zheng and Betty Dall.

   - Init code change to carry out the early ACPI initialization
     earlier.  That should allow us to use ACPI during the timekeeping
     initialization and possibly to simplify the EFI initialization too.
     From Chun-Yi Lee.

   - Clenups of the inclusions of ACPI headers in many places all over
     from Lv Zheng and Rashika Kheria (work in progress).

   - New helper for ACPI _DSM execution and rework of the code in
     drivers that uses _DSM to execute it via the new helper.  From
     Jiang Liu.

   - New Win8 OSI blacklist entries from Takashi Iwai.

   - Assorted ACPI fixes and cleanups from Al Stone, Emil Goode, Hanjun
     Guo, Lan Tianyu, Masanari Iida, Oliver Neukum, Prarit Bhargava,
     Rashika Kheria, Tang Chen, Zhang Rui.

   - intel_pstate driver updates, including proper Baytrail support,
     from Dirk Brandewie and intel_pstate documentation from Ramkumar
     Ramachandra.

   - Generic CPU boost ("turbo") support for cpufreq from Lukasz
     Majewski.

   - powernow-k6 cpufreq driver fixes from Mikulas Patocka.

   - cpufreq core fixes and cleanups from Viresh Kumar, Jane Li, Mark
     Brown.

   - Assorted cpufreq drivers fixes and cleanups from Anson Huang, John
     Tobias, Paul Bolle, Paul Walmsley, Sachin Kamat, Shawn Guo, Viresh
     Kumar.

   - cpuidle cleanups from Bartlomiej Zolnierkiewicz.

   - Support for hibernation APM events from Bin Shi.

   - Hibernation fix to avoid bringing up nonboot CPUs with ACPI EC
     disabled during thaw transitions from Bjørn Mork.

   - PM core fixes and cleanups from Ben Dooks, Leonardo Potenza, Ulf
     Hansson.

   - PNP subsystem fixes and cleanups from Dmitry Torokhov, Levente
     Kurusa, Rashika Kheria.

   - New tool for profiling system suspend from Todd E Brandt and a
     cpupower tool cleanup from One Thousand Gnomes"

* tag 'pm+acpi-3.14-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (153 commits)
  thermal: exynos: boost: Automatic enable/disable of BOOST feature (at Exynos4412)
  cpufreq: exynos4x12: Change L0 driver data to CPUFREQ_BOOST_FREQ
  Documentation: cpufreq / boost: Update BOOST documentation
  cpufreq: exynos: Extend Exynos cpufreq driver to support boost
  cpufreq / boost: Kconfig: Support for software-managed BOOST
  acpi-cpufreq: Adjust the code to use the common boost attribute
  cpufreq: Add boost frequency support in core
  intel_pstate: Add trace point to report internal state.
  cpufreq: introduce cpufreq_generic_get() routine
  ARM: SA1100: Create dummy clk_get_rate() to avoid build failures
  cpufreq: stats: create sysfs entries when cpufreq_stats is a module
  cpufreq: stats: free table and remove sysfs entry in a single routine
  cpufreq: stats: remove hotplug notifiers
  cpufreq: stats: handle cpufreq_unregister_driver() and suspend/resume properly
  cpufreq: speedstep: remove unused speedstep_get_state
  platform: introduce OF style 'modalias' support for platform bus
  PM / tools: new tool for suspend/resume performance optimization
  ACPI: fix module autoloading for ACPI enumerated devices
  ACPI: add module autoloading support for ACPI enumerated devices
  ACPI: fix create_modalias() return value handling
  ...
2014-01-24 15:51:02 -08:00
Joe Perches
98a9bba51c checkpatch: prefer ether_addr_copy to memcpy(foo, bar, ETH_ALEN)
ether_addr_copy was added for kernel version 3.14.  It's slightly
smaller/faster for some arches.  Encourage its use.

Signed-off-by: Joe Perches <joe@perches.com>
Cc: Andy Whitcroft <apw@canonical.com>
Cc: David Miller <davem@davemloft.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2014-01-23 16:36:58 -08:00
Rob Herring
bff5da4335 checkpatch: add DT compatible string documentation checks
This adds a simple check that any compatible strings in DeviceTree dts
files are present in Documentation/devicetree/bindings.  Vendor prefixes
are also checked for existing in vendor-prefixes.txt These should be
temporary checks until we have more sophisticated binding schema
checking.

Signed-off-by: Rob Herring <robh@kernel.org>
Signed-off-by: Joe Perches <joe@perches.com>
Cc: Grant Likely <grant.likely@linaro.org>
Cc: Andy Whitcroft <apw@canonical.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2014-01-23 16:36:58 -08:00
Alexander Duyck
109d8cb200 checkpatch: only flag FSF address, not gnu.org URL
This change restricts the check for the for the FSF address in the GPL
copyright statement so that it only flags the address, not the
references to the gnu.org/licenses URL which appears to be used in
numerous drivers.  The idea is to still allow some reference to an
external copy of the GPL in the event that files are copied out of the
kernel tree without the COPYING file.

So for example this statement will still return an error:
  You should have received a copy of the GNU General Public License
  along with this program; if not, write to the Free Software
  Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.

However, this statement will not return an error after this patch:
  You should have received a copy of the GNU General Public License
  along with this program.  If not, see <http://www.gnu.org/licenses/>.

Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com>
Cc: Joe Perches <joe@perches.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2014-01-23 16:36:58 -08:00
Joe Perches
31070b5d44 checkpatch: add tests for function pointer style misuses
Kernel style uses function pointers in this form:
	"type (*funcptr)(args...)"

Emit warnings when this function pointer form isn't used.

Signed-off-by: Joe Perches <joe@perches.com>
Cc: Andy Whitcroft <apw@shadowen.org>
Cc: Derek Perrin <d.roc16@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2014-01-23 16:36:58 -08:00
Joe Perches
3e2232f2d0 checkpatch: update the FSF/GPL address check
The FSF address check is a bit too verbose looking for the GPL text.
Quiet it a bit by requiring --strict for the GPL bit.

Also make the address tests match a few uses of abbreviations for street
names and make it case insensitive.

Signed-off-by: Joe Perches <joe@perches.com>
Reviewed-by: Josh Triplett <josh@joshtriplett.org>
Cc: Manfred Spraul <manfred@colorfullife.com>
Cc: Andy Whitcroft <apw@canonical.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2014-01-23 16:36:58 -08:00
Joe Perches
189248d8f4 checkpatch: check for if's with unnecessary parentheses
If statements don't need multiple parentheses around tested comparisons
like "if ((foo == bar))".

An == comparison maybe a sign of an intended assignment, so emit a
slightly different message if so.

Signed-off-by: Joe Perches <joe@perches.com>
Reviewed-by: Josh Triplett <josh@joshtriplett.org>
Cc: Manfred Spraul <manfred@colorfullife.com>
Cc: Andy Whitcroft <apw@canonical.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2014-01-23 16:36:58 -08:00
Joe Perches
c76f4cb3d2 checkpatch: improve space before tab --fix option
This test should remove all the spaces before a tab not just one space.

Substitute a tab for each 8 space block before a tab and remove less than
8 spaces before a tab.

This SPACE_BEFORE_TAB test is done after CODE_INDENT.

If there are spaces used at the beginning of a line that should be
converted to tabs, please make sure that the CODE_INDENT test and
conversion is done before this SPACE_BEFORE_TAB test and conversion.

Reported-by: Manfred Spraul <manfred@colorfullife.com>
Signed-off-by: Joe Perches <joe@perches.com>
Cc: Josh Triplett <josh@joshtriplett.org>
Cc: Andy Whitcroft <apw@canonical.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2014-01-23 16:36:58 -08:00
Joe Perches
9624b8d65c checkpatch: add a --fix-inplace option
Add the ability to fix and overwrite existing files/patches instead of
creating a new file "<filename>.EXPERIMENTAL-checkpatch-fixes".

Suggested-by: Manfred Spraul <manfred@colorfullife.com>
Signed-off-by: Joe Perches <joe@perches.com>
Reviewed-by: Josh Triplett <josh@joshtriplett.org>
Cc: Andy Whitcroft <apw@canonical.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2014-01-23 16:36:58 -08:00
Joe Perches
c34c09a845 checkpatch: attempt to find missing switch/case break;
switch case statements missing a break statement are an unfortunately
common error.

e.g.:
  commit 4a2c94c9b6 ("HID: kye: Add report fixup for Genius Manticore Keyboard")

case blocks should end in a break/return/goto/continue.

If a fall-through is used, it should have a comment showing that it is
intentional.  Ideally that comment should be something like:
"/* fall-through */"

Add a test to look for missing break statements.

This looks only at the context lines before an inserted case so it's
possible to have false positives when the context contains a close brace
and the break is before the brace and not part of the patch context.

Looking at recent patches, this is a pretty rare occurrence.  The normal
kernel style uses a break as the last line of the previous block.

Signed-off-by: Joe Perches <joe@perche.com>
Cc: Andy Whitcroft <apw@shadowen.org>
Cc: Jiri Kosina <jkosina@suse.cz>
Cc: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Cc: Dave Jones <davej@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2014-01-23 16:36:57 -08:00
David Rientjes
7e4915e789 checkpatch: add warning of future __GFP_NOFAIL use
gfp.h and page_alloc.c already specify that __GFP_NOFAIL is deprecated and
no new users should be added.

Add a warning to checkpatch to catch this.

Signed-off-by: David Rientjes <rientjes@google.com>
Cc: Joe Perches <joe@perches.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2014-01-23 16:36:57 -08:00
Joe Perches
d2e248e7b0 checkpatch: warn only on "space before semicolon" at end of line
The "space before a non-naked semicolon" test has unwanted output when
used in "for ( ;; )" loops.

Make the test work only on end-of-line statement termination semicolons.

Signed-off-by: Joe Perches <joe@perches.com>
Cc: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2014-01-23 16:36:57 -08:00
Joe Perches
8c5fcd24a9 checkpatch: more comprehensive split strings warning
The current checkpatch test for split strings does not find several
cases that should be found.

For instance:

 		/* Else poor success; go back to mode in "active" table */
 		} else {
 			IWL_DEBUG_RATE(mvm,
-				       "LQ: GOING BACK TO THE OLD TABLE suc=%d cur-tpt=%d old-tpt=%d\n",
+				       "GOING BACK TO THE OLD TABLE: SR %d "
+				       "cur-tpt %d old-tpt %d\n",
 				       window->success_ratio,
 				       window->average_tpt,
 				      lq_sta->last_tpt);

does not currently emit a warning.

Improve the test to find these cases.

Add more exceptions to reduce false positives for assembly and octal/hex
string constants.

Signed-off-by: Joe Perches <joe@perches.com>
Reviewed-by: Josh Triplett <josh@joshtriplett.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2014-01-23 16:36:57 -08:00
Joe Perches
c9ecefea0b get_maintainer: add commit author information to --rolestats
get_maintainer currently uses "Signed-off-by" style lines to find
interested parties to send patches to when the MAINTAINERS file does not
have a specific section entry with a matching file pattern.

Add statistics for commit authors and lines added and deleted to the
information provided by --rolestats.

These statistics are also emitted whenever --rolestats and --git are
selected even when there is a specified maintainer.

This can have the effect of expanding the number of people that are shown
as possible "maintainers" of a particular file because "authors",
"added_lines", and "removed_lines" are also used as criterion for the
--max-maintainers option separate from the "commit_signers".

The first "--git-max-maintainers" values of each criterion
are emitted.  Any "ties" are not shown.

For example: (forcedeth does not have a named maintainer)

Old output:

$ ./scripts/get_maintainer.pl -f drivers/net/ethernet/nvidia/forcedeth.c
"David S. Miller" <davem@davemloft.net> (commit_signer:8/10=80%)
Jiri Pirko <jiri@resnulli.us> (commit_signer:2/10=20%)
Patrick McHardy <kaber@trash.net> (commit_signer:2/10=20%)
Larry Finger <Larry.Finger@lwfinger.net> (commit_signer:1/10=10%)
Peter Zijlstra <peterz@infradead.org> (commit_signer:1/10=10%)
netdev@vger.kernel.org (open list:NETWORKING DRIVERS)
linux-kernel@vger.kernel.org (open list)

New output:

$ ./scripts/get_maintainer.pl -f drivers/net/ethernet/nvidia/forcedeth.c
"David S. Miller" <davem@davemloft.net> (commit_signer:8/10=80%)
Jiri Pirko <jiri@resnulli.us> (commit_signer:2/10=20%,authored:2/10=20%,removed_lines:3/33=9%)
Patrick McHardy <kaber@trash.net> (commit_signer:2/10=20%,authored:2/10=20%,added_lines:12/95=13%,removed_lines:10/33=30%)
Larry Finger <Larry.Finger@lwfinger.net> (commit_signer:1/10=10%,authored:1/10=10%,added_lines:35/95=37%)
Peter Zijlstra <peterz@infradead.org> (commit_signer:1/10=10%)
"Peter Hüwe" <PeterHuewe@gmx.de> (authored:1/10=10%,removed_lines:15/33=45%)
Joe Perches <joe@perches.com> (authored:1/10=10%)
Neil Horman <nhorman@tuxdriver.com> (added_lines:40/95=42%)
Bill Pemberton <wfp5p@virginia.edu> (removed_lines:3/33=9%)
netdev@vger.kernel.org (open list:NETWORKING DRIVERS)
linux-kernel@vger.kernel.org (open list)

Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2014-01-23 16:36:56 -08:00
Paul Bolle
a7e1d98f3e headers_check: special case seqbuf_dump()
"make headers_check" warns about soundcard.h for (at least) five years
now:
    [...]/usr/include/linux/soundcard.h:1054: userspace cannot reference function or variable defined in the kernel

We're apparently stuck with providing OSSlib-3.8 compatibility, so let's
special case this declaration just to silence it.

Notes:

0) Support for OSSlib post 3.8 was already removed in commit 43a990765a
   ("sound: Remove OSSlib stuff from linux/soundcard.h").  Five years have
   passed since that commit: do people still care about OSSlib-3.8?  If
   not, quite a bit of code could be remove from soundcard.h (and probably
   ultrasound.h).

2) By the way, what is actually meant by:
    It is no longer possible to actually link against OSSlib with this
    header, but we still provide these macros for programs using them.

Doesn't that mean compatibility to OSSlib isn't even useful?

3) Anyhow, a previous discussion soundcard.h, which led to that commit,
   starts at https://lkml.org/lkml/2009/1/20/349 .

4) And, yes, I sneaked in a whitespace fix.

Signed-off-by: Paul Bolle <pebolle@tiscali.nl>
Cc: Takashi Iwai <tiwai@suse.de>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Cc: Michal Marek <mmarek@suse.cz>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2014-01-23 16:36:55 -08:00
Michal Simek
372c7209d6 microblaze: extable: sort the exception table at build time
Sort the exception table at build-time rather than during boot.

Microblaze is the same case as AARCH64 that's why EM_MICROBLAZE
conditional check was added to allow cross-compilation on machines which
are not running the latest libc-dev.

Inspired by AARCH64 commit adace89562 ("arm64: extable: sort the
exception table at build time").

Signed-off-by: Michal Simek <michal.simek@xilinx.com>
Acked-by: David Daney <david.daney@cavium.com>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Will Deacon <will.deacon@arm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2014-01-23 16:36:50 -08:00
Linus Torvalds
e1ba84597c PCI changes for the v3.14 merge window:
Resource management
     - Change pci_bus_region addresses to dma_addr_t (Bjorn Helgaas)
     - Support 64-bit AGP BARs (Bjorn Helgaas, Yinghai Lu)
     - Add pci_bus_address() to get bus address of a BAR (Bjorn Helgaas)
     - Use pci_resource_start() for CPU address of AGP BARs (Bjorn Helgaas)
     - Enforce bus address limits in resource allocation (Yinghai Lu)
     - Allocate 64-bit BARs above 4G when possible (Yinghai Lu)
     - Convert pcibios_resource_to_bus() to take pci_bus, not pci_dev (Yinghai Lu)
 
   PCI device hotplug
     - Major rescan/remove locking update (Rafael J. Wysocki)
     - Make ioapic builtin only (not modular) (Yinghai Lu)
     - Fix release/free issues (Yinghai Lu)
     - Clean up pciehp (Bjorn Helgaas)
     - Announce pciehp slot info during enumeration (Bjorn Helgaas)
 
   MSI
     - Add pci_msi_vec_count(), pci_msix_vec_count() (Alexander Gordeev)
     - Add pci_enable_msi_range(), pci_enable_msix_range() (Alexander Gordeev)
     - Deprecate "tri-state" interfaces: fail/success/fail+info (Alexander Gordeev)
     - Export MSI mode using attributes, not kobjects (Greg Kroah-Hartman)
     - Drop "irq" param from *_restore_msi_irqs() (DuanZhenzhong)
 
   SR-IOV
     - Clear NumVFs when disabling SR-IOV in sriov_init() (ethan.zhao)
 
   Virtualization
     - Add support for save/restore of extended capabilities (Alex Williamson)
     - Add Virtual Channel to save/restore support (Alex Williamson)
     - Never treat a VF as a multifunction device (Alex Williamson)
     - Add pci_try_reset_function(), et al (Alex Williamson)
 
   AER
     - Ignore non-PCIe error sources (Betty Dall)
     - Support ACPI HEST error sources for domains other than 0 (Betty Dall)
     - Consolidate HEST error source parsers (Bjorn Helgaas)
     - Add a TLP header print helper (Borislav Petkov)
 
   Freescale i.MX6
     - Remove unnecessary code (Fabio Estevam)
     - Make reset-gpio optional (Marek Vasut)
     - Report "link up" only after link training completes (Marek Vasut)
     - Start link in Gen1 before negotiating for Gen2 mode (Marek Vasut)
     - Fix PCIe startup code (Richard Zhu)
 
   Marvell MVEBU
     - Remove duplicate of_clk_get_by_name() call (Andrew Lunn)
     - Drop writes to bridge Secondary Status register (Jason Gunthorpe)
     - Obey bridge PCI_COMMAND_MEM and PCI_COMMAND_IO bits (Jason Gunthorpe)
     - Support a bridge with no IO port window (Jason Gunthorpe)
     - Use max_t() instead of max(resource_size_t,) (Jingoo Han)
     - Remove redundant of_match_ptr (Sachin Kamat)
     - Call pci_ioremap_io() at startup instead of dynamically (Thomas Petazzoni)
 
   NVIDIA Tegra
     - Disable Gen2 for Tegra20 and Tegra30 (Eric Brower)
 
   Renesas R-Car
     - Add runtime PM support (Valentine Barshak)
     - Fix rcar_pci_probe() return value check (Wei Yongjun)
 
   Synopsys DesignWare
     - Fix crash in dw_msi_teardown_irq() (Bjørn Erik Nilsen)
     - Remove redundant call to pci_write_config_word() (Bjørn Erik Nilsen)
     - Fix missing MSI IRQs (Harro Haan)
     - Add dw_pcie prefix before cfg_read/write (Pratyush Anand)
     - Fix I/O transfers by using CPU (not realio) address (Pratyush Anand)
     - Whitespace cleanup (Jingoo Han)
 
   EISA
     - Call put_device() if device_register() fails (Levente Kurusa)
     - Revert EISA initialization breakage ((Bjorn Helgaas)
 
   Miscellaneous
     - Remove unused code, including PCIe 3.0 interfaces (Stephen Hemminger)
     - Prevent bus conflicts while checking for bridge apertures (Bjorn Helgaas)
     - Stop clearing bridge Secondary Status when setting up I/O aperture (Bjorn Helgaas)
     - Use dev_is_pci() to identify PCI devices (Yijing Wang)
     - Deprecate DEFINE_PCI_DEVICE_TABLE (Joe Perches)
     - Update documentation 00-INDEX (Erik Ekman)
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Merge tag 'pci-v3.14-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci

Pull PCI updates from Bjorn Helgaas:
 "PCI changes for the v3.14 merge window:

  Resource management
    - Change pci_bus_region addresses to dma_addr_t (Bjorn Helgaas)
    - Support 64-bit AGP BARs (Bjorn Helgaas, Yinghai Lu)
    - Add pci_bus_address() to get bus address of a BAR (Bjorn Helgaas)
    - Use pci_resource_start() for CPU address of AGP BARs (Bjorn Helgaas)
    - Enforce bus address limits in resource allocation (Yinghai Lu)
    - Allocate 64-bit BARs above 4G when possible (Yinghai Lu)
    - Convert pcibios_resource_to_bus() to take pci_bus, not pci_dev (Yinghai Lu)

  PCI device hotplug
    - Major rescan/remove locking update (Rafael J. Wysocki)
    - Make ioapic builtin only (not modular) (Yinghai Lu)
    - Fix release/free issues (Yinghai Lu)
    - Clean up pciehp (Bjorn Helgaas)
    - Announce pciehp slot info during enumeration (Bjorn Helgaas)

  MSI
    - Add pci_msi_vec_count(), pci_msix_vec_count() (Alexander Gordeev)
    - Add pci_enable_msi_range(), pci_enable_msix_range() (Alexander Gordeev)
    - Deprecate "tri-state" interfaces: fail/success/fail+info (Alexander Gordeev)
    - Export MSI mode using attributes, not kobjects (Greg Kroah-Hartman)
    - Drop "irq" param from *_restore_msi_irqs() (DuanZhenzhong)

  SR-IOV
    - Clear NumVFs when disabling SR-IOV in sriov_init() (ethan.zhao)

  Virtualization
    - Add support for save/restore of extended capabilities (Alex Williamson)
    - Add Virtual Channel to save/restore support (Alex Williamson)
    - Never treat a VF as a multifunction device (Alex Williamson)
    - Add pci_try_reset_function(), et al (Alex Williamson)

  AER
    - Ignore non-PCIe error sources (Betty Dall)
    - Support ACPI HEST error sources for domains other than 0 (Betty Dall)
    - Consolidate HEST error source parsers (Bjorn Helgaas)
    - Add a TLP header print helper (Borislav Petkov)

  Freescale i.MX6
    - Remove unnecessary code (Fabio Estevam)
    - Make reset-gpio optional (Marek Vasut)
    - Report "link up" only after link training completes (Marek Vasut)
    - Start link in Gen1 before negotiating for Gen2 mode (Marek Vasut)
    - Fix PCIe startup code (Richard Zhu)

  Marvell MVEBU
    - Remove duplicate of_clk_get_by_name() call (Andrew Lunn)
    - Drop writes to bridge Secondary Status register (Jason Gunthorpe)
    - Obey bridge PCI_COMMAND_MEM and PCI_COMMAND_IO bits (Jason Gunthorpe)
    - Support a bridge with no IO port window (Jason Gunthorpe)
    - Use max_t() instead of max(resource_size_t,) (Jingoo Han)
    - Remove redundant of_match_ptr (Sachin Kamat)
    - Call pci_ioremap_io() at startup instead of dynamically (Thomas Petazzoni)

  NVIDIA Tegra
    - Disable Gen2 for Tegra20 and Tegra30 (Eric Brower)

  Renesas R-Car
    - Add runtime PM support (Valentine Barshak)
    - Fix rcar_pci_probe() return value check (Wei Yongjun)

  Synopsys DesignWare
    - Fix crash in dw_msi_teardown_irq() (Bjørn Erik Nilsen)
    - Remove redundant call to pci_write_config_word() (Bjørn Erik Nilsen)
    - Fix missing MSI IRQs (Harro Haan)
    - Add dw_pcie prefix before cfg_read/write (Pratyush Anand)
    - Fix I/O transfers by using CPU (not realio) address (Pratyush Anand)
    - Whitespace cleanup (Jingoo Han)

  EISA
    - Call put_device() if device_register() fails (Levente Kurusa)
    - Revert EISA initialization breakage ((Bjorn Helgaas)

  Miscellaneous
    - Remove unused code, including PCIe 3.0 interfaces (Stephen Hemminger)
    - Prevent bus conflicts while checking for bridge apertures (Bjorn Helgaas)
    - Stop clearing bridge Secondary Status when setting up I/O aperture (Bjorn Helgaas)
    - Use dev_is_pci() to identify PCI devices (Yijing Wang)
    - Deprecate DEFINE_PCI_DEVICE_TABLE (Joe Perches)
    - Update documentation 00-INDEX (Erik Ekman)"

* tag 'pci-v3.14-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci: (119 commits)
  Revert "EISA: Initialize device before its resources"
  Revert "EISA: Log device resources in dmesg"
  vfio-pci: Use pci "try" reset interface
  PCI: Check parent kobject in pci_destroy_dev()
  xen/pcifront: Use global PCI rescan-remove locking
  powerpc/eeh: Use global PCI rescan-remove locking
  PCI: Fix pci_check_and_unmask_intx() comment typos
  PCI: Add pci_try_reset_function(), pci_try_reset_slot(), pci_try_reset_bus()
  MPT / PCI: Use pci_stop_and_remove_bus_device_locked()
  platform / x86: Use global PCI rescan-remove locking
  PCI: hotplug: Use global PCI rescan-remove locking
  pcmcia: Use global PCI rescan-remove locking
  ACPI / hotplug / PCI: Use global PCI rescan-remove locking
  ACPI / PCI: Use global PCI rescan-remove locking in PCI root hotplug
  PCI: Add global pci_lock_rescan_remove()
  PCI: Cleanup pci.h whitespace
  PCI: Reorder so actual code comes before stubs
  PCI/AER: Support ACPI HEST AER error sources for PCI domains other than 0
  ACPICA: Add helper macros to extract bus/segment numbers from HEST table.
  PCI: Make local functions static
  ...
2014-01-22 16:39:28 -08:00
Linus Torvalds
82b51734b4 - CPU suspend support on top of PSCI (firmware Power State Coordination
Interface)
 - Jump label support
 - CMA can now be enabled on arm64
 - HWCAP bits for crypto and CRC32 extensions
 - Optimised percpu using tpidr_el1 register
 - Code cleanup
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Merge tag 'arm64-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux

Pull ARM64 updates from Catalin Marinas:
 - CPU suspend support on top of PSCI (firmware Power State Coordination
   Interface)
 - jump label support
 - CMA can now be enabled on arm64
 - HWCAP bits for crypto and CRC32 extensions
 - optimised percpu using tpidr_el1 register
 - code cleanup

* tag 'arm64-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux: (42 commits)
  arm64: fix typo in entry.S
  arm64: kernel: restore HW breakpoint registers in cpu_suspend
  jump_label: use defined macros instead of hard-coding for better readability
  arm64, jump label: optimize jump label implementation
  arm64, jump label: detect %c support for ARM64
  arm64: introduce aarch64_insn_gen_{nop|branch_imm}() helper functions
  arm64: move encode_insn_immediate() from module.c to insn.c
  arm64: introduce interfaces to hotpatch kernel and module code
  arm64: introduce basic aarch64 instruction decoding helpers
  arm64: dts: Reduce size of virtio block device for foundation model
  arm64: Remove unused __data_loc variable
  arm64: Enable CMA
  arm64: Warn on NULL device structure for dma APIs
  arm64: Add hwcaps for crypto and CRC32 extensions.
  arm64: drop redundant macros from read_cpuid()
  arm64: Remove outdated comment
  arm64: cmpxchg: update macros to prevent warnings
  arm64: support single-step and breakpoint handler hooks
  ARM64: fix framepointer check in unwind_frame
  ARM64: check stack pointer in get_wchan
  ...
2014-01-20 15:40:44 -08:00
Linus Torvalds
edde1fb8c4 While debugging the problem with localmodconfig and the ALSA codec
modules all being set, I discovered a small bug in the dependency
 logic.
 
 If a config has a dependency based on its setting value, localmodcondig
 misses it.
 
 For example:
 
 config FOO
     default y if BAR || ZOO
 
 If FOO is needed for a module and is set to '=m', and so are BAR or ZOO,
 localmodconfig will not see that BAR or ZOO are also needed for the foo
 module, and will incorrectly disable them.
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Merge tag 'localmodconfig-v3.14' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-kconfig

Pull localmodconfig update from Steven Rostedt:
 "While debugging the problem with localmodconfig and the ALSA codec
  modules all being set, I discovered a small bug in the dependency
  logic.

  If a config has a dependency based on its setting value,
  localmodcondig misses it.

  For example:

    config FOO
        default y if BAR || ZOO

  If FOO is needed for a module and is set to '=m', and so are BAR or
  ZOO, localmodconfig will not see that BAR or ZOO are also needed for
  the foo module, and will incorrectly disable them"

* tag 'localmodconfig-v3.14' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-kconfig:
  localmodconfig: Add config depends by default settings
2014-01-20 09:37:38 -08:00
Rafael J. Wysocki
df34ca72ed Merge branches 'acpi-tools' and 'pm-tools'
* acpi-tools:
  ACPICA: acpidump: Update MAINTAINERS file to include tools folder for ACPI/ACPICA.
  ACPICA: acpidump: Enable tools Makefile to include acpi tools.
  ACPICA: acpidump: Cleanup tools/power/acpi makefiles.

* pm-tools:
  PM / tools: new tool for suspend/resume performance optimization
  cpupower: Fix sscanf robustness in cpufreq-set
2014-01-17 01:59:48 +01:00
Todd E Brandt
ee8b09cd60 PM / tools: new tool for suspend/resume performance optimization
This tool is designed to assist kernel and OS developers in optimizing
their linux stack's suspend/resume time. Using a kernel image built with a
few extra options enabled, the tool will execute a suspend and will
capture dmesg and ftrace data until resume is complete. This data is
transformed into a device timeline and a callgraph to give a quick and
detailed view of which devices and callbacks are taking the most time in
suspend/resume. The output is a single html file which can be viewed in
firefox or chrome.

References: https://01.org/suspendresume
Signed-off-by: Todd Brandt <todd.e.brandt@linux.intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2014-01-17 01:47:26 +01:00
Andreas Schwab
8fe9c93e74 powerpc: Add vr save/restore functions
GCC 4.8 now generates out-of-line vr save/restore functions when
optimizing for size.  They are needed for the raid6 altivec support.

Signed-off-by: Andreas Schwab <schwab@linux-m68k.org>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2014-01-15 13:46:43 +11:00
Jiang Liu
f3c003f72d arm64, jump label: detect %c support for ARM64
As commit a9468f30b5 "ARM: 7333/2: jump label: detect %c
support for ARM", this patch detects the same thing for ARM64
because some ARM64 GCC versions have the same issue.

Some versions of ARM64 GCC which do support asm goto, do not
support the %c specifier. Since we need the %c to support jump
labels on ARM64, detect that too in the asm goto detection script
to avoid build errors with these versions.

Acked-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Jiang Liu <liuj97@gmail.com>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
2014-01-08 15:21:29 +00:00
Ben Hutchings
c5e318f67e deb-pkg: Fix building for MIPS big-endian or ARM OABI
These commands will mysteriously fail:

$ make ARCH=arm versatile_defconfig
[...]
$ make ARCH=arm deb-pkg
[...]
make[1]: *** [deb-pkg] Error 1
make: *** [deb-pkg] Error 2

The Debian architecture selection for these kernel architectures does
'grep FOO=y $KCONFIG_CONFIG && echo bar', and after 'set -e' this
aborts the script if grep does not find the given config symbol.

Fixes: 10f26fa642 ('build, deb-pkg: select userland architecture based on UTS_MACHINE')
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
Signed-off-by: Michal Marek <mmarek@suse.cz>
2014-01-03 17:28:23 +01:00
Ben Hutchings
f8ce239dfc deb-pkg: Fix cross-building linux-headers package
builddeb generates a control file that says the linux-headers package
can only be built for the build system primary architecture.  This
breaks cross-building configurations.  We should use $debarch for this
instead.

Since $debarch is not yet set when generating the control file, set
Architecture: any and use control file variables to fill in the
description.

Fixes: cd8d60a20a ('kbuild: create linux-headers package in deb-pkg')
Reported-and-tested-by: "Niew, Sh." <shniew@gmail.com>
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
Signed-off-by: Michal Marek <mmarek@suse.cz>
2014-01-03 17:17:38 +01:00
Franck Bui-Huu
7593e0902b Fix detectition of kernel git repository in setlocalversion script [take #2]
setlocalversion script was testing the presence of .git directory in
order to find out if git is used as SCM to track the current kernel
project. However in some cases, .git is not a directory but can be a
file: when the kernel is a git submodule part of a git super project for
example.

This patch just fixes this by using 'git rev-parse --show-cdup' to check
that the current directory is the kernel git topdir. This has the
advantage to not test and rely on git internal infrastructure directly.

Signed-off-by: Franck Bui-Huu <fbuihuu@gmail.com>
Signed-off-by: Michal Marek <mmarek@suse.cz>
2014-01-03 14:48:42 +01:00
Nishanth Menon
79f0345fef scripts: Coccinelle script for pm_runtime_* return checks with IS_ERR_VALUE
As indicated by Sekhar in [1], there seems to be a tendency to use
IS_ERR_VALUE to check the error result for pm_runtime_* functions which
make no sense considering commit c48cd65 (ARM: OMAP: use consistent
error checking) - the error values can either be < 0 for error OR
0, 1 in cases where we have success.

So, setup a coccinelle script to help identify the same.

[1] http://marc.info/?t=138472678100003&r=1&w=2

Cc: Russell King <rmk+kernel@arm.linux.org.uk>
Reported-by: Sekhar Nori <nsekhar@ti.com>
Signed-off-by: Nishanth Menon <nm@ti.com>
Acked-by: Julia Lawall <julia.lawall@lip6.fr>
Signed-off-by: Michal Marek <mmarek@suse.cz>
2014-01-03 14:39:35 +01:00
Michal Marek
37e2c2a775 Merge commit v3.13-rc1 into kbuild/misc 2014-01-02 14:02:06 +01:00
Linus Torvalds
a3981a52a2 Refactoring broke the balloon driver, and fixing kallsyms on ARM broke
some (non-ARM) MMUless setups, so we're making that fix ARM-only for now.
 
 Unfortunately, the ARM refactoring which broke kallsyms/perf was CC:stable,
 so the fix (which broken non-ARM) was also CC:stable, so now the partial
 reversion is also CC:stable...
 
 Cheers,
 Rusty.
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Merge tag 'fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux

Pull virtio balloon driver fixes from Rusty Russell:
 "Refactoring broke the balloon driver, and fixing kallsyms on ARM broke
  some (non-ARM) MMUless setups, so we're making that fix ARM-only for
  now.

  Unfortunately, the ARM refactoring which broke kallsyms/perf was
  CC:stable, so the fix (which broken non-ARM) was also CC:stable, so
  now the partial reversion is also CC:stable..."

* tag 'fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux:
  scripts/link-vmlinux.sh: only filter kernel symbols for arm
  virtio_balloon: update_balloon_size(): update correct field
2013-12-23 10:49:44 -08:00
Steven Rostedt (Red Hat)
95edca5c52 localmodconfig: Add config depends by default settings
Currently localmodconfig will miss dependencies from the default option.
For example:

config FOO
	default y if BAR || ZOO

If FOO is needed for a module and is set to '=m', and so are BAR or ZOO,
localmodconfig will not see that BOO or ZOO are also needed for the foo
module, and will incorrectly disable them.

Link: http://lkml.kernel.org/r/20131218175137.162937350@goodmis.org

Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
2013-12-20 17:02:44 -05:00
Linus Torvalds
2430cdd0fe ARC Fixes for 3.13
- Couple of fixes for recently added perf code
 - Build time extable sort
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Merge tag 'arc-fixes-for-3.13' of git://git.kernel.org/pub/scm/linux/kernel/git/vgupta/arc

Pull ARC fixes from Vineet Gupta:
 "These are couple of weeks old already, but I just couldn't get them to
  you earlier.

   - couple of fixes for recently added perf code
   - build time extable sort"

* tag 'arc-fixes-for-3.13' of git://git.kernel.org/pub/scm/linux/kernel/git/vgupta/arc:
  ARC: [perf] Fix a few thinkos
  ARC: Add guard macro to uapi/asm/unistd.h
  ARC: extable: Enable sorting at build time
2013-12-13 16:14:39 -08:00
Joe Perches
92e112fdbb PCI/checkpatch: Deprecate DEFINE_PCI_DEVICE_TABLE
Prefer use of the direct definition of struct pci_device_id instead of
indirection via macro DEFINE_PCI_DEVICE_TABLE.

Update the PCI documentation to deprecate DEFINE_PCI_DEVICE_TABLE.  Update
checkpatch adding --fix option.

Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Jingoo Han <jg1.han@samsung.com>
2013-12-13 11:36:22 -07:00
Ming Lei
7122c3e915 scripts/link-vmlinux.sh: only filter kernel symbols for arm
Actually CONFIG_PAGE_OFFSET isn't same with PAGE_OFFSET, so
it isn't easy to figue out PAGE_OFFSET defined in header
file from scripts.

Because CONFIG_PAGE_OFFSET may not be defined in some ARCHs(
64bit ARCH), or defined as bogus value in !MMU case, so
this patch only applys the filter on ARM when CONFIG_PAGE_OFFSET
is defined as the original problem is only on ARM.

Cc: <stable@vger.kernel.org>
Cc: Rusty Russell <rusty@rustcorp.com.au>
Fixes: f6537f2f0e
Singed-off-by: Ming Lei <tom.leiming@gmail.com>
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2013-12-10 16:49:19 +10:30
Tony Lu
2d8eedad92 ftrace: default to tilegx if ARCH=tile is specified
This matches the existing behavior in arch/tile/Makefile for defconfig.

Reported-by: fengguang.wu@intel.com
Acked-by: Steven Rostedt <rostedt@goodmis.org>
Signed-off-by: Tony Lu <zlu@tilera.com>
Signed-off-by: Chris Metcalf <cmetcalf@tilera.com>
2013-12-05 15:59:26 -05:00
Vineet Gupta
f06d19e460 ARC: extable: Enable sorting at build time
Avoids wasting cycles at boot specially on slower simulators

Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
Cc: Michal Marek <mmarek@suse.cz>
Cc: Francois Bedard <fbedard@synopsys.com>
Cc: linux-kernel@vger.kernel.org
Acked-by: David Daney <david.daney@cavium.com>
2013-11-25 10:35:23 +05:30
Linus Torvalds
a5d6e63323 Merge branch 'akpm' (fixes from Andrew)
Merge patches from Andrew Morton:
 "13 fixes"

* emailed patches from Andrew Morton <akpm@linux-foundation.org>:
  mm: place page->pmd_huge_pte to right union
  MAINTAINERS: add keyboard driver to Hyper-V file list
  x86, mm: do not leak page->ptl for pmd page tables
  ipc,shm: correct error return value in shmctl (SHM_UNLOCK)
  mm, mempolicy: silence gcc warning
  block/partitions/efi.c: fix bound check
  ARM: drivers/rtc/rtc-at91rm9200.c: disable interrupts at shutdown
  mm: hugetlbfs: fix hugetlbfs optimization
  kernel: remove CONFIG_USE_GENERIC_SMP_HELPERS cleanly
  ipc,shm: fix shm_file deletion races
  mm: thp: give transparent hugepage code a separate copy_page
  checkpatch: fix "Use of uninitialized value" warnings
  configfs: fix race between dentry put and lookup
2013-11-21 21:32:38 -08:00
Linus Torvalds
78dc53c422 Merge branch 'for-linus2' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security
Pull security subsystem updates from James Morris:
 "In this patchset, we finally get an SELinux update, with Paul Moore
  taking over as maintainer of that code.

  Also a significant update for the Keys subsystem, as well as
  maintenance updates to Smack, IMA, TPM, and Apparmor"

and since I wanted to know more about the updates to key handling,
here's the explanation from David Howells on that:

 "Okay.  There are a number of separate bits.  I'll go over the big bits
  and the odd important other bit, most of the smaller bits are just
  fixes and cleanups.  If you want the small bits accounting for, I can
  do that too.

   (1) Keyring capacity expansion.

        KEYS: Consolidate the concept of an 'index key' for key access
        KEYS: Introduce a search context structure
        KEYS: Search for auth-key by name rather than target key ID
        Add a generic associative array implementation.
        KEYS: Expand the capacity of a keyring

     Several of the patches are providing an expansion of the capacity of a
     keyring.  Currently, the maximum size of a keyring payload is one page.
     Subtract a small header and then divide up into pointers, that only gives
     you ~500 pointers on an x86_64 box.  However, since the NFS idmapper uses
     a keyring to store ID mapping data, that has proven to be insufficient to
     the cause.

     Whatever data structure I use to handle the keyring payload, it can only
     store pointers to keys, not the keys themselves because several keyrings
     may point to a single key.  This precludes inserting, say, and rb_node
     struct into the key struct for this purpose.

     I could make an rbtree of records such that each record has an rb_node
     and a key pointer, but that would use four words of space per key stored
     in the keyring.  It would, however, be able to use much existing code.

     I selected instead a non-rebalancing radix-tree type approach as that
     could have a better space-used/key-pointer ratio.  I could have used the
     radix tree implementation that we already have and insert keys into it by
     their serial numbers, but that means any sort of search must iterate over
     the whole radix tree.  Further, its nodes are a bit on the capacious side
     for what I want - especially given that key serial numbers are randomly
     allocated, thus leaving a lot of empty space in the tree.

     So what I have is an associative array that internally is a radix-tree
     with 16 pointers per node where the index key is constructed from the key
     type pointer and the key description.  This means that an exact lookup by
     type+description is very fast as this tells us how to navigate directly to
     the target key.

     I made the data structure general in lib/assoc_array.c as far as it is
     concerned, its index key is just a sequence of bits that leads to a
     pointer.  It's possible that someone else will be able to make use of it
     also.  FS-Cache might, for example.

   (2) Mark keys as 'trusted' and keyrings as 'trusted only'.

        KEYS: verify a certificate is signed by a 'trusted' key
        KEYS: Make the system 'trusted' keyring viewable by userspace
        KEYS: Add a 'trusted' flag and a 'trusted only' flag
        KEYS: Separate the kernel signature checking keyring from module signing

     These patches allow keys carrying asymmetric public keys to be marked as
     being 'trusted' and allow keyrings to be marked as only permitting the
     addition or linkage of trusted keys.

     Keys loaded from hardware during kernel boot or compiled into the kernel
     during build are marked as being trusted automatically.  New keys can be
     loaded at runtime with add_key().  They are checked against the system
     keyring contents and if their signatures can be validated with keys that
     are already marked trusted, then they are marked trusted also and can
     thus be added into the master keyring.

     Patches from Mimi Zohar make this usable with the IMA keyrings also.

   (3) Remove the date checks on the key used to validate a module signature.

        X.509: Remove certificate date checks

     It's not reasonable to reject a signature just because the key that it was
     generated with is no longer valid datewise - especially if the kernel
     hasn't yet managed to set the system clock when the first module is
     loaded - so just remove those checks.

   (4) Make it simpler to deal with additional X.509 being loaded into the kernel.

        KEYS: Load *.x509 files into kernel keyring
        KEYS: Have make canonicalise the paths of the X.509 certs better to deduplicate

     The builder of the kernel now just places files with the extension ".x509"
     into the kernel source or build trees and they're concatenated by the
     kernel build and stuffed into the appropriate section.

   (5) Add support for userspace kerberos to use keyrings.

        KEYS: Add per-user_namespace registers for persistent per-UID kerberos caches
        KEYS: Implement a big key type that can save to tmpfs

     Fedora went to, by default, storing kerberos tickets and tokens in tmpfs.
     We looked at storing it in keyrings instead as that confers certain
     advantages such as tickets being automatically deleted after a certain
     amount of time and the ability for the kernel to get at these tokens more
     easily.

     To make this work, two things were needed:

     (a) A way for the tickets to persist beyond the lifetime of all a user's
         sessions so that cron-driven processes can still use them.

         The problem is that a user's session keyrings are deleted when the
         session that spawned them logs out and the user's user keyring is
         deleted when the UID is deleted (typically when the last log out
         happens), so neither of these places is suitable.

         I've added a system keyring into which a 'persistent' keyring is
         created for each UID on request.  Each time a user requests their
         persistent keyring, the expiry time on it is set anew.  If the user
         doesn't ask for it for, say, three days, the keyring is automatically
         expired and garbage collected using the existing gc.  All the kerberos
         tokens it held are then also gc'd.

     (b) A key type that can hold really big tickets (up to 1MB in size).

         The problem is that Active Directory can return huge tickets with lots
         of auxiliary data attached.  We don't, however, want to eat up huge
         tracts of unswappable kernel space for this, so if the ticket is
         greater than a certain size, we create a swappable shmem file and dump
         the contents in there and just live with the fact we then have an
         inode and a dentry overhead.  If the ticket is smaller than that, we
         slap it in a kmalloc()'d buffer"

* 'for-linus2' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security: (121 commits)
  KEYS: Fix keyring content gc scanner
  KEYS: Fix error handling in big_key instantiation
  KEYS: Fix UID check in keyctl_get_persistent()
  KEYS: The RSA public key algorithm needs to select MPILIB
  ima: define '_ima' as a builtin 'trusted' keyring
  ima: extend the measurement list to include the file signature
  kernel/system_certificate.S: use real contents instead of macro GLOBAL()
  KEYS: fix error return code in big_key_instantiate()
  KEYS: Fix keyring quota misaccounting on key replacement and unlink
  KEYS: Fix a race between negating a key and reading the error set
  KEYS: Make BIG_KEYS boolean
  apparmor: remove the "task" arg from may_change_ptraced_domain()
  apparmor: remove parent task info from audit logging
  apparmor: remove tsk field from the apparmor_audit_struct
  apparmor: fix capability to not use the current task, during reporting
  Smack: Ptrace access check mode
  ima: provide hash algo info in the xattr
  ima: enable support for larger default filedata hash algorithms
  ima: define kernel parameter 'ima_template=' to change configured default
  ima: add Kconfig default measurement list template
  ...
2013-11-21 19:46:00 -08:00
Joe Perches
c11230f44b checkpatch: fix "Use of uninitialized value" warnings
checkpatch is currently confused about some complex macros and references
undefined variables $stat and $cond.

Make sure these are defined before using them.

Signed-off-by: Joe Perches <joe@perches.com>
Reported-by: Gerhard Sittig <gsi@denx.de>
Acked-by: Andy Whitcroft <apw@canonical.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2013-11-21 16:42:27 -08:00
Ben Hutchings
1c8ddae09f deb-pkg: Inhibit initramfs builders if CONFIG_BLK_DEV_INITRD is not set
The kernel postinst hook for initramfs-tools will build an initramfs
on installation unless $INITRD is set to 'No'.  make-kpkg generates a
postinst script that sets this variable appropriately, but we don't.
Set it based on CONFIG_BLK_DEV_INITRD.

This should also work with dracut when <http://bugs.debian.org/729622>
is fixed.

Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
Signed-off-by: Michal Marek <mmarek@suse.cz>
2013-11-18 14:35:49 +01:00
Linus Torvalds
b29c8306a3 This batch of changes is mostly clean ups and small bug fixes.
The only real feature that was added this release is from Namhyung Kim,
 who introduced "set_graph_notrace" filter that lets you run the function
 graph tracer and not trace particular functions and their call chain.
 
 Tom Zanussi added some updates to the ftrace multibuffer tracing that
 made it more consistent with the top level tracing.
 
 One of the fixes for perf function tracing required an API change in
 RCU; the addition of "rcu_is_watching()". As Paul McKenney is pushing
 that change in this release too, he gave me a branch that included
 all the changes to get that working, and I pulled that into my tree
 in order to complete the perf function tracing fix.
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Merge tag 'trace-3.13' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace

Pull tracing update from Steven Rostedt:
 "This batch of changes is mostly clean ups and small bug fixes.  The
  only real feature that was added this release is from Namhyung Kim,
  who introduced "set_graph_notrace" filter that lets you run the
  function graph tracer and not trace particular functions and their
  call chain.

  Tom Zanussi added some updates to the ftrace multibuffer tracing that
  made it more consistent with the top level tracing.

  One of the fixes for perf function tracing required an API change in
  RCU; the addition of "rcu_is_watching()".  As Paul McKenney is pushing
  that change in this release too, he gave me a branch that included all
  the changes to get that working, and I pulled that into my tree in
  order to complete the perf function tracing fix"

* tag 'trace-3.13' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace:
  tracing: Add rcu annotation for syscall trace descriptors
  tracing: Do not use signed enums with unsigned long long in fgragh output
  tracing: Remove unused function ftrace_off_permanent()
  tracing: Do not assign filp->private_data to freed memory
  tracing: Add helper function tracing_is_disabled()
  tracing: Open tracer when ftrace_dump_on_oops is used
  tracing: Add support for SOFT_DISABLE to syscall events
  tracing: Make register/unregister_ftrace_command __init
  tracing: Update event filters for multibuffer
  recordmcount.pl: Add support for __fentry__
  ftrace: Have control op function callback only trace when RCU is watching
  rcu: Do not trace rcu_is_watching() functions
  ftrace/x86: skip over the breakpoint for ftrace caller
  trace/trace_stat: use rbtree postorder iteration helper instead of opencoding
  ftrace: Add set_graph_notrace filter
  ftrace: Narrow down the protected area of graph_lock
  ftrace: Introduce struct ftrace_graph_data
  ftrace: Get rid of ftrace_graph_filter_enabled
  tracing: Fix potential out-of-bounds in trace_get_user()
  tracing: Show more exact help information about snapshot
2013-11-16 12:23:18 -08:00
Linus Torvalds
e4528d696f Merge branch 'misc' of git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild
Pull misc kbuild changes from Michal Marek:
 - make tags fixes again
 - scripts/show_delta fix for newer python
 - scripts/kernel-doc does not fail on unknown function prototype
 - one less coccinelle check this time

* 'misc' of git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild:
  scripts/tags.sh: remove obsolete __devinit[const|data]
  scripts/kernel-doc: make unknown function prototype a Warning instead of an Error
  show_delta: Update script to support python versions 2.5 through 3.3
  scripts/coccinelle/api: remove devm_request_and_ioremap.cocci
  scripts/tags.sh: Increase identifier list
2013-11-15 14:09:15 -08:00
Linus Torvalds
d72681d7c6 Merge branch 'kconfig' of git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild
Pull kconfig changes from Michal Marek:
 - xconfig stores its setting in a meaningful path
   (~/.config/kernel.org/qconf.conf)
 - kconfig symbol search fix
 - documentation fixes
 - cleanup & comment update
 - fix warning when a kconfig symbol is defined with two different types
 - Yann is now officially listed as maintainer of kconfig, but he
   prefers me to send pull requests for now

* 'kconfig' of git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild:
  MAINTAINERS: New kconfig maintainer
  xconfig: Fix the filename for GUI settings
  kconfig: fix bug in search results string: use strlen(gstr->s), not gstr->len
  kconfig: remove unused definition from scanner
  kconfig: adjust warning message for conflicting types
  kconfig: fix trivial typos and update mconf documentation
  kconfig: add short explanation to SYMBOL_WRITE
  Documentation/kbuild/kconfig.txt: 'make listnewconfig' replaces: yes "" | make oldconfig
2013-11-15 14:08:15 -08:00
Linus Torvalds
762fb1ddd5 Merge branch 'kbuild' of git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild
Pull kbuild changes from Michal Marek:
 - LTO fixes, but the kallsyms part had to be reverted
 - Pass -Werror=implicit-int and -Werror=strict-prototypes to the
   compiler by default
 - snprintf fix in modpost
 - remove GREP_OPTIONS from the environment to be immune against exotic
   grep option settings

* 'kbuild' of git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild:
  kallsyms: Revert back to 128 max symbol length
  Kbuild: Ignore GREP_OPTIONS env variable
  scripts: kallsyms: Use %zu to print 'size_t'
  scripts/bloat-o-meter: use .startswith rather than fragile slicing
  scripts/bloat-o-meter: ignore changes in the size of linux_banner
  kbuild: replace unbounded sprintf call in modpost
  kbuild, bloat-o-meter: fix static detection
  Kbuild: Handle longer symbols in kallsyms.c
  kbuild: Increase kallsyms max symbol length
  Makefile: enable -Werror=implicit-int and -Werror=strict-prototypes by default
2013-11-15 14:06:38 -08:00
Linus Torvalds
ce6513f758 Mainly boring here, too. rmmod --wait finally removed, though.
Cheers,
 Rusty.
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Merge tag 'modules-next-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux

Pull module updates from Rusty Russell:
 "Mainly boring here, too.  rmmod --wait finally removed, though"

* tag 'modules-next-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux:
  modpost: fix bogus 'exported twice' warnings.
  init: fix in-place parameter modification regression
  asmlinkage, module: Make ksymtab and kcrctab symbols and __this_module __visible
  kernel: add support for init_array constructors
  modpost: Optionally ignore secondary errors seen if a single module build fails
  module: remove rmmod --wait option.
2013-11-15 13:27:50 +09:00