15 Aug, 2014
3 commits
-
Pull more ACPI and power management updates from Rafael Wysocki:
"These are a couple of regression fixes, cpuidle menu governor
optimizations, fixes for ACPI proccessor and battery drivers,
hibernation fix to avoid problems related to the e820 memory map,
fixes for a few cpufreq drivers and a new version of the suspend
profiling tool analyze_suspend.py.Specifics:
- Fix for an ACPI-based device hotplug regression introduced in 3.14
that causes a kernel panic to trigger when memory hot-remove is
attempted with CONFIG_ACPI_HOTPLUG_MEMORY unset from Tang Chen- Fix for a cpufreq regression introduced in 3.16 that triggers a
"sleeping function called from invalid context" bug in
dev_pm_opp_init_cpufreq_table() from Stephen Boyd- ACPI battery driver fix for a warning message added in 3.16 that
prints silly stuff sometimes from Mariusz Ceier- Hibernation fix for safer handling of mismatches in the 820 memory
map between the configurations during image creation and during the
subsequent restore from Chun-Yi Lee- ACPI processor driver fix to handle CPU hotplug notifications
correctly during system suspend/resume from Lan Tianyu- Series of four cpuidle menu governor cleanups that also should
speed it up a bit from Mel Gorman- Fixes for the speedstep-smi, integrator, cpu0 and arm_big_little
cpufreq drivers from Hans Wennborg, Himangi Saraogi, Markus
Pargmann and Uwe Kleine-König- Version 3.0 of the analyze_suspend.py suspend profiling tool from
Todd E Brandt"* tag 'pm+acpi-3.17-rc1-2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
ACPI / battery: Fix warning message in acpi_battery_get_state()
PM / tools: analyze_suspend.py: update to v3.0
cpufreq: arm_big_little: fix module license spec
cpufreq: speedstep-smi: fix decimal printf specifiers
ACPI / hotplug: Check scan handlers in acpi_scan_hot_remove()
cpufreq: OPP: Avoid sleeping while atomic
cpufreq: cpu0: Do not print error message when deferring
cpufreq: integrator: Use set_cpus_allowed_ptr
PM / hibernate: avoid unsafe pages in e820 reserved regions
ACPI / processor: Make acpi_cpu_soft_notify() process CPU FROZEN events
cpuidle: menu: Lookup CPU runqueues less
cpuidle: menu: Call nr_iowait_cpu less times
cpuidle: menu: Use ktime_to_us instead of reinventing the wheel
cpuidle: menu: Use shifts when calculating averages where possible -
Pull misc kbuild updates from Michal Marek:
"This is the non-critical part of kbuild for 3.17-rc1:- make help hint to use make -s with make kernelrelease et al.
- moved a kbuild document to Documentation/kbuild where it belongs
- four new Coccinelle scripts, one dropped and one fixed
- new make kselftest target to run various tests on the kernel"* 'misc' of git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild:
kbuild: kselftest - new make target to build and run kernel selftests
Coccinelle: Script to replace if and BUG with BUG_ON
Coccinelle: Script to detect incorrect argument to sizeof
Coccinelle: Script to use ARRAY_SIZE instead of division of two sizeofs
Coccinelle: Script to detect cast after memory allocation
coccinelle/null: solve parse error
Documentation: headers_install.txt is part of kbuild
kbuild: make -s should be used with kernelrelease/kernelversion/image_name -
Pull kbuild updates from Michal Marek:
- make clean also considers $(extra-m) and $(extra-) to be consistent
- cleanup and fixes in scripts/Makefile.host
- allow to override the name of the Python 2 executable with make
PYTHON=... (only needed for ia64 in practice)
- option to split debugingo into *.dwo files to save disk space if the
compiler supports it (CONFIG_DEBUG_INFO_SPLIT)
- option to use dwarf4 debuginfo if the compiler supports it
(CONFIG_DEBUG_INFO_DWARF4)
- fix for disabling certain warnings with clang
- fix for unneeded rebuild with dash when a command contains
backslashes* 'kbuild' of git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild:
kbuild: Fix handling of backslashes in *.cmd files
kbuild, LLVMLinux: Supress warnings unless W=1-3
Kbuild: Add a option to enable dwarf4 v2
kbuild: Support split debug info v4
kbuild: allow to override Python command name
kbuild: clean-up and bug fix of scripts/Makefile.host
kbuild: clean up scripts/Makefile.host
kbuild: drop shared library support from Makefile.host
kbuild: fix a bug of C++ host program handling
kbuild: fix a typo in scripts/Makefile.host
scripts/Makefile.clean: clean also $(extra-m) and $(extra-)
12 Aug, 2014
1 commit
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* pm-tools:
PM / tools: analyze_suspend.py: update to v3.0
11 Aug, 2014
1 commit
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Pull module updates from Rusty Russell:
"This finally applies the stricter sysfs perms checking we pulled out
before last merge window. A few stragglers are fixed (thanks
linux-next!)"* tag 'modules-next-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux:
arch/powerpc/platforms/powernv/opal-dump.c: fix world-writable sysfs files
arch/powerpc/platforms/powernv/opal-elog.c: fix world-writable sysfs files
drivers/video/fbdev/s3c2410fb.c: don't make debug world-writable.
ARM: avoid ARM binutils leaking ELF local symbols
scripts: modpost: Remove numeric suffix pattern matching
scripts: modpost: fix compilation warning
sysfs: disallow world-writable files.
module: return bool from within_module*()
module: add within_module() function
modules: Fix build error in moduleloader.h
09 Aug, 2014
7 commits
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Update of analyze_suspend.py to v3.0
New features include back-2-back suspend testing, device filters to
reduce the html size, the inclusion of device_prepare and device_complete
callbacks, a usb topography list, and the ability to control USB
device autosuspend.UI upgrades include a device detail window and mini-timeline, the addition
of a suspend_prepare and resume_complete phase to the timeline which includes
the associated device callbacks, automatic highlight of related callbacks,
and general color and name changes for better reability.The new version relies on two trace point patches that are already in
the kernel:
enable_trace_events_suspend_resume.patch
enable_trace_events_device_pm_callback.patchIt has legacy support for older kernels without these trace events, but
when available the tool processes the ftrace output alone (dmesg has
been deprecated as a tool input, and is only gathered for convenience).Link: https://01.org/suspendresume/downloads/analyzesuspend-v3.0
Signed-off-by: Todd Brandt
Signed-off-by: Rafael J. Wysocki -
currently bin2c builds only if CONFIG_IKCONFIG=y. But bin2c will now be
used by kexec too. So make it compilation dependent on CONFIG_BUILD_BIN2C
and this config option can be selected by CONFIG_KEXEC and CONFIG_IKCONFIG.Signed-off-by: Vivek Goyal
Cc: Borislav Petkov
Cc: Michael Kerrisk
Cc: Yinghai Lu
Cc: Eric Biederman
Cc: H. Peter Anvin
Cc: Matthew Garrett
Cc: Greg Kroah-Hartman
Cc: Dave Young
Cc: WANG Chao
Cc: Baoquan He
Cc: Andy Lutomirski
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
This patch series does not do kernel signature verification yet. I plan
to post another patch series for that. Now distributions are already
signing PE/COFF bzImage with PKCS7 signature I plan to parse and verify
those signatures.Primary goal of this patchset is to prepare groundwork so that kernel
image can be signed and signatures be verified during kexec load. This
should help with two things.- It should allow kexec/kdump on secureboot enabled machines.
- In general it can help even without secureboot. By being able to verify
kernel image signature in kexec, it should help with avoiding module
signing restrictions. Matthew Garret showed how to boot into a custom
kernel, modify first kernel's memory and then jump back to old kernel and
bypass any policy one wants to.This patch (of 15):
Kexec wants to use bin2c and it wants to use it really early in the build
process. See arch/x86/purgatory/ code in later patches.So move bin2c in scripts/basic so that it can be built very early and
be usable by arch/x86/purgatory/Signed-off-by: Vivek Goyal
Cc: Borislav Petkov
Cc: Michael Kerrisk
Cc: Yinghai Lu
Cc: Eric Biederman
Cc: H. Peter Anvin
Cc: Matthew Garrett
Cc: Greg Kroah-Hartman
Cc: Dave Young
Cc: WANG Chao
Cc: Baoquan He
Cc: Andy Lutomirski
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
This patch adds support for ARCH=x86 into checkstack.
Commit ffee0de411fd ("x86: Default to ARCH=x86 to avoid overriding
CONFIG_64BIT") had merged ARCH=i386 and ARCH=x86_64 into one ARCH=x86.
checkstack.pl searches patterns of machine instructions which are
usually used for allocating stack frames. checkstalk.pl needs either
i386 or x86_64, x86 isn't enough:$ make checkstack
objdump -d vmlinux $(find . -name '*.ko') | \
perl linux/scripts/checkstack.pl x86
wrong or unknown architecture "x86"Signed-off-by: Konstantin Khlebnikov
Cc: David Woodhouse
Cc: "H. Peter Anvin"
Cc: Richard Weinberger
Cc: Geert Uytterhoeven
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Since the kernel now has a COMPAT_SYSCALL infrastructure via commit
468366138850 ("COMPAT_SYSCALL_DEFINE: infrastructure"), add the
corresponding regex for generating compat_sys_* symbols in the tags
files (similar to sys_*).Signed-off-by: Catalin Marinas
Cc: Alexander Viro
Cc: Michal Marek
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
All coccinelle scripts have a copyright in the header.
Signed-off-by: Fabian Frederick
Suggested-by: Julia Lawall
Acked-by: Julia Lawall
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Warns or generates patch for NULL check before the following functions:
kfree
usb_free_urb
debugfs_remove
debugfs_remove_recursiveSigned-off-by: Fabian Frederick
Acked-by: Julia Lawall
Cc: Gilles Muller
Cc: Joe Perches
Cc: Markus Elfring
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds
08 Aug, 2014
1 commit
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Commit c353acba ("kbuild: make: fix if_changed when command contains
backslashes") attempted to handle backslashes in *.cmd files, but it
only handled double backslashes for some reason. Changing make-cmd to also
handle single backslashes fixes rebuilds with dash, but it breaks bash
again. The reason is that the two shells disagree about the
interpretation of backslash sequences in the echo builtin. The way out
of this is to print the command with printf '%s\n'. While at it,
document what the individual parts of make-cmd do and why.Reported-and-tested-by: Konstantin Khlebnikov
Reviewed-by: Sam Ravnborg
Signed-off-by: Michal Marek
07 Aug, 2014
27 commits
-
Merge incoming from Andrew Morton:
- Various misc things.
- arch/sh updates.
- Part of ocfs2. Review is slow.
- Slab updates.
- Most of -mm.
- printk updates.
- lib/ updates.
- checkpatch updates.* emailed patches from Andrew Morton : (226 commits)
checkpatch: update $declaration_macros, add uninitialized_var
checkpatch: warn on missing spaces in broken up quoted
checkpatch: fix false positives for --strict "space after cast" test
checkpatch: fix false positive MISSING_BREAK warnings with --file
checkpatch: add test for native c90 types in unusual order
checkpatch: add signed generic types
checkpatch: add short int to c variable types
checkpatch: add for_each tests to indentation and brace tests
checkpatch: fix brace style misuses of else and while
checkpatch: add --fix option for a couple OPEN_BRACE misuses
checkpatch: use the correct indentation for which()
checkpatch: add fix_insert_line and fix_delete_line helpers
checkpatch: add ability to insert and delete lines to patch/file
checkpatch: add an index variable for fixed lines
checkpatch: warn on break after goto or return with same tab indentation
checkpatch: emit a warning on file add/move/delete
checkpatch: add test for commit id formatting style in commit log
checkpatch: emit fewer kmalloc_array/kcalloc conversion warnings
checkpatch: improve "no space after cast" test
checkpatch: allow multiple const * types
... -
Pull trivial tree changes from Jiri Kosina:
"Summer edition of trivial tree updates"* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial: (23 commits)
doc: fix two typos in watchdog-api.txt
irq-gic: remove file name from heading comment
MAINTAINERS: Add miscdevice.h to file list for char/misc drivers.
scsi: mvsas: mv_sas.c: Fix for possible null pointer dereference
doc: replace "practise" with "practice" in Documentation
befs: remove check for CONFIG_BEFS_RW
scsi: doc: fix 'SCSI_NCR_SETUP_MASTER_PARITY'
drivers/usb/phy/phy.c: remove a leading space
mfd: fix comment
cpuidle: fix comment
doc: hpfall.c: fix missing null-terminate after strncpy call
usb: doc: hotplug.txt code typos
kbuild: fix comment in Makefile.modinst
SH: add proper prompt to SH_MAGIC_PANEL_R2_VERSION
ARM: msm: Remove MSM_SCM
crypto: Remove MPILIB_EXTRA
doc: CN: remove dead link, kerneltrap.org no longer works
media: update reference, kerneltrap.org no longer works
hexagon: update reference, kerneltrap.org no longer works
doc: LSM: update reference, kerneltrap.org no longer works
... -
Using uninitialized_var reports a false positive for "Missing blank line
after declarations".Fix it by adding uninitialized_var to the $declaration_macros exceptions
list.Move the macro list after $Type is declared.
Add optional prefixes to DECLARE_ and DEFINE_
macro declarations to allow forms like:
MLX4_DECLARE_DOORBELL_LOCKSigned-off-by: Joe Perches
Reported-by: Dotan Barak
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Checkpatch already complains when people break up quoted strings but
it's still pretty common. One mistake that people often make is they
leave out the space character between the two strings.This check adds around 450 new warnings and has a low rate of false
positives.Signed-off-by: Dan Carpenter
Cc: Andy Whitcroft
Acked-by: Joe Perches
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Commit 89da401f6cff ("checkpatch: improve "no space after cast" test")
in -next improved the cast test for non pointer types, but also
introduced false positives for some types of static inlines.Add a test for an open brace to the exclusions to avoid these false
positives.Signed-off-by: Joe Perches
Reported-by: Hartley Sweeten
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Using --file mode can give false positives with MISSING_BREAK
fall-through warnings on simple but long multiple consecutive case
statements.Look for all lines before a case statement for a switch or a statement
when using --file mode.Fix a misspelling of preceded while there.
Signed-off-by: Joe Perches
Reported-by: Lee Jones
Acked-by: Lee Jones
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
c90 section "6.7.2 Type Specifiers" says:
"type specifiers may occur in any order"That means that:
short int is the same as int short
unsigned short int is the same as int unsigned short
etc...checkpatch currently parses only a subset of these allowed types.
For instance: "unsigned short" and "signed short" are found by
checkpatch as a specific type, but none of the or "int short" or "int
signed short" variants are found.Add another table for the "kernel style misordered" variants.
Add this misordered table to the findable types.
Warn when the misordered style is used.
This improves the "Missing a blank line after declarations" test as it
depends on the correct parsing of the $Declare variable which looks for
"$Type $Ident;" (ie: declarations like "int foo;").Signed-off-by: Joe Perches
Acked-by: Andy Whitcroft
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Current generic types are unsigned or unspecified. Add signed to the
types.Reorder the types to find the longest match first.
Signed-off-by: Joe Perches
Acked-by: Andy Whitcroft
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
short int is one of the 6.7.2 c90 types.
Find it appropriately.This fixes a defect in checkpatch where it suggests that a line break
after declaration is required using an input like:int foo;
short int bar;Without this change, it warns on the short int line.
Signed-off-by: Joe Perches
Reported-by: Hartley Sweeten
Acked-by: Andy Whitcroft
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
All the various for_each loop macros were not tested for trailing brace
on the following lines and for bad indentation.Add them.
Signed-off-by: Joe Perches
Reported-by: Greg KH
Cc: Andy Whitcroft
Signed-off-by: Linus Torvalds -
Add --fix corrections for ELSE_AFTER_BRACE and WHILE_AFTER_BRACE
misuses.if (x) {
...
}
else {
...
}is corrected to
if (x) {
...
} else {
...
}and
do {
...
}
while (x);is corrected to
do {
...
} while (x);Signed-off-by: Joe Perches
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Style misuses of these types are corrected:
typedef struct foo
{
int bar;
};int foo(int bar) { return bar+1;
}int foo(int bar) {
return bar+1;
}Signed-off-by: Joe Perches
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
I copied the which subroutine from get_maintainer.pl.
Unfortunately, get_maintainer uses a 4 space indentation so use the
proper tab indentation instead.Signed-off-by: Joe Perches
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Neaten the uses of patch/file line insertions or deletions. Hide the
mechanism used.Signed-off-by: Joe Perches
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
This can be valuable to insert or delete blank lines as well as fix
misplaced brace or else uses.Store indexes of lines to be added/deleted and the new lines.
When creating the --fix file, insert or delete the appropriate lines and
update the patch range information.Signed-off-by: Joe Perches
Cc: Andy Whitcroft
Cc: Dan Carpenter
Cc: Josh Triplett
Cc: Greg Kroah-Hartman
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Make the fix code a bit easier to read.
This should also start to allow an easier mechanism to insert/delete
lines eventually too.Signed-off-by: Joe Perches
Cc: Andy Whitcroft
Cc: Dan Carpenter
Cc: Josh Triplett
Cc: Greg Kroah-Hartman
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Using break; after a goto or return is unnecessary so emit a warning
when the break is at the same indent level.So this emits a warning on:
switch (foo) {
case 1:
goto err;
break;
}but not on:
switch (foo) {
case 1:
if (bar())
goto err;
break;
}Signed-off-by: Joe Perches
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Whenever files are added, moved, or deleted, the MAINTAINERS file
patterns can be out of sync or outdated.To try to keep MAINTAINERS more up-to-date, add a one-time warning
whenever a patch does any of those.Signed-off-by: Joe Perches
Acked-by: Andy Whitcroft
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Commit logs have various forms of commit id references.
Try to standardize on a 12 character long lower case commit id along
with a description of parentheses and the quoted subject line.ie: commit 0123456789ab ("commit description")
If git and a git tree exists, look up the commit id and emit the
appropriate line as part of the message.Signed-off-by: Joe Perches
Requested-by: Andrew Morton
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Avoid matching allocs that appear to be known small multiplications of a
sizeof with a constant because gcc as of 4.8 cannot optimize the code in
a calloc() exactly the same way as an alloc().Look for numeric constants or what appear to be upper case only macro
#defines.Signed-off-by: Joe Perches
Reported-by: Theodore Ts'o
Original-patch-by: Fabian Frederick
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
This --strict test previously worked only for what appeared to be cast
to pointer types.Make it work for all casts.
Also, there's no reason to show the previous line for this type of
message, so don't.Signed-off-by: Joe Perches
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
checkpatch's $Type variable does not match declarations of multiple
const * types.This can produce false positives for things like:
$ ./scripts/checkpatch.pl -f drivers/staging/comedi/comedidev.h
WARNING: Missing a blank line after declarations
#60: FILE: drivers/staging/comedi/comedidev.h:60:
+ const struct comedi_lrange *range_table;
+ const struct comedi_lrange *const *range_table_list;Fix the $Type variable to support matching multiple "* const" uses.
Signed-off-by: Joe Perches
Reported-by: Hartley Sweeten
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Parentheses around &(foo->bar) and *(foo->bar) are unnecessary. Emit a
--strict only message on these uses.Signed-off-by: Joe Perches
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Editing Kconfig dependencies can emit unnecessary messages about missing
or too short help entries.Only emit the message when adding help sections to Kconfig files.
Signed-off-by: Joe Perches
Reported-by: Jean Delvare
Tested-by: Jean Delvare
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Make it consistent with the other missing or multiple blank line tests.
Signed-off-by: Joe Perches
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Multiple consecutive blank lines waste screen space. Emit a --strict
only message with these blank lines.Signed-off-by: Joe Perches
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Add a --strict test asking for a blank line after
function/struct/union/enum declarations.Allow exceptions for several attributes and macro uses.
Signed-off-by: Joe Perches
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds
