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2014-04-03checkpatch: make "return is not a function" test quieterJoe Perches
This test is a bit noisy and opinions seem to agree that it should not warn in a lot more situations. It seems people agree that: return (foo || bar); and return foo || bar; are both acceptable style and checkpatch should be silent about them. For now, it warns on parentheses around a simple constant or a single function or a ternary. return (foo); return (foo(bar)); return (foo ? bar : baz); The last ternary test may be quieted in the future. Modify the deparenthesize function to only strip balanced leading and trailing parentheses. Signed-off-by: Joe Perches <joe@perches.com> Cc: Julia Lawall <julia.lawall@lip6.fr> Reviewed-by: Josh Triplett <josh@joshtriplett.org> Cc: Monam Agarwal <monamagarwal123@gmail.com> Cc: Greg KH <gregkh@linuxfoundation.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2014-04-03checkpatch: ignore networking block comment style first lines in fileJoe Perches
It's very common to have normal block comments for the initial comments of a file description preface. So for files in drivers/net and net/ don't emit a warning when the first comment block in the file uses the normal block comment style and not the networking block comment style. 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>
2014-04-03checkpatch: use a more consistent function argument styleJoe Perches
Instead of array indexing $_, use temporary variables like all the other subroutines in the script use. 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>
2014-04-03checkpatch: add test for char * arrays that could be static constJoe Perches
static const char* arrays create smaller text as each function call does not have to populate the array. Emit a warning when char *arrays aren't static const and the array is not apparently global by being declared in the first column. 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>
2014-04-03checkpatch: fix jiffies comparison and othersJoe Perches
checkpatch could not distinguish between a variable in a struct named jiffies and the normal jiffies. foo->jiffies would emit a "Comparing jiffies" arning. Update the $Compare variable to do a negative look-behind for "-" when finding a ">" so that a pointer dereference like -> isn't a comparison. 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>
2014-04-03checkpatch: avoid sscanf test duplicated messagesJoe Perches
Change a test of $dstat to $line to avoid possibly emitting the sscanf warning multiple times. 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>
2014-04-03checkpatch: update octal permissions warningJoe Perches
When checking permissions, make sure 4 octal digits are used, but allow a single 0 too. 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>
2014-04-03checkpatch: warn on uses of __constant_<foo> functionsJoe Perches
Emit a warning when using any of these __constant_<foo> forms: __constant_cpu_to_be[x] __constant_cpu_to_le[x] __constant_be[x]_to_cpu __constant_le[x]_to_cpu __constant_htons __constant_ntohs Using any of these outside of include/uapi/ isn't preferred as using the function without __constant_ is identical when the argument is a constant. Signed-off-by: Joe Perches <joe@perches.com> Cc: Andy Whitcroft <apw@canonical.com> Cc: Simon Wunderlich <sw@simonwunderlich.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2014-04-03checkpatch: add checks for constant non-octal permissionsJoe Perches
umode_t permissions are sometimes mistakenly written with decimal constants. Verify that numeric permissions are using octal. Add a list of the most commonly used functions and macros that have umode_t permissions and the argument position. Add a $Octal type to $Constant. Allow $LvalOrFunc to be a pointer indirection too. 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>
2014-04-03checkpatch: don't warn on some function pointer return stylesJoe Perches
Checks for some function pointer return styles are too strict. Fix them. Multiple spaces after function pointer return types are allowed. int (*foo)(int bar) Spaces after function pointer returns of pointer types are not required. int *(*foo)(int bar) 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>
2014-04-03checkpatch: add test for long udelayJoe Perches
Holger reported: : The macro udelay cannot handle large values because of loss-of-precision. : : IMHO udelay on ARM is broken, because it also cannot work with fast : ARM processors (where bogomips >= 3355, which is in sight now). It's : just not broken enough that someone did something against it ... so : the current kludge is good enough. Until then, warn on long udelay uses. Also fix uses of $line that should have been $herecurr. Signed-off-by: Joe Perches <joe@perches.com> Reported-by: Holger Schurig <holgerschurig@gmail.com> Cc: Sujith Manoharan <sujith@msujith.org> Cc: John Linville <linville@tuxdriver.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2014-04-03genksyms: fix typeof() handlingJan Beulich
Recent increased use of typeof() throughout the tree resulted in a number of symbols (25 in a typical distro config of ours) not getting a proper CRC calculated for them anymore, due to the parser in genksyms not coping with several of these uses (interestingly in the majority of [if not all] cases the problem is due to the use of typeof() in code preceding a certain export, not in the declaration/definition of the exported function/object itself; I wasn't able to find a way to address this more general parser shortcoming). The use of parameter_declaration is a little more relaxed than would be ideal (permitting not just a bare type specification, but also one with identifier), but since the same code is being passed through an actual compiler, there's no apparent risk of allowing through any broken code. Otoh using parameter_declaration instead of the ad hoc "decl_specifier_seq '*'" / "decl_specifier_seq" pair allows all types to be handled rather than just plain ones and pointers to plain ones. Signed-off-by: Jan Beulich <jbeulich@suse.com> Cc: Michal Marek <mmarek@suse.cz> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2014-04-02Merge tag 'dt-for-linus' of git://git.secretlab.ca/git/linuxLinus Torvalds
Pull devicetree changes from Grant Likely: "Updates to devicetree core code. This branch contains the following notable changes: - add reserved memory binding - make struct device_node a kobject and remove legacy /proc/device-tree - ePAPR conformance fixes - update in-kernel DTC copy to version v1.4.0 - preparatory changes for dynamic device tree overlays - minor bug fixes and documentation changes The most significant change in this branch is the conversion of struct device_node to be a kobject that is exposed via sysfs and removal of the old /proc/device-tree code. This simplifies the device tree handling code and tightens up the lifecycle on device tree nodes. [updated: added fix for dangling select PROC_DEVICETREE]" * tag 'dt-for-linus' of git://git.secretlab.ca/git/linux: (29 commits) dt: Remove dangling "select PROC_DEVICETREE" of: Add support for ePAPR "stdout-path" property of: device_node kobject lifecycle fixes of: only scan for reserved mem when fdt present powerpc: add support for reserved memory defined by device tree arm64: add support for reserved memory defined by device tree of: add missing major vendors of: add vendor prefix for SMSC of: remove /proc/device-tree of/selftest: Add self tests for manipulation of properties of: Make device nodes kobjects so they show up in sysfs arm: add support for reserved memory defined by device tree drivers: of: add support for custom reserved memory drivers drivers: of: add initialization code for dynamic reserved memory drivers: of: add initialization code for static reserved memory of: document bindings for reserved-memory nodes Revert "of: fix of_update_property()" kbuild: dtbs_install: new make target ARM: mvebu: Allows to get the SoC ID even without PCI enabled of: Allows to use the PCI translator without the PCI core ...
2014-04-01Merge tag 'driver-core-3.15-rc1' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core Pull driver core and sysfs updates from Greg KH: "Here's the big driver core / sysfs update for 3.15-rc1. Lots of kernfs updates to make it useful for other subsystems, and a few other tiny driver core patches. All have been in linux-next for a while" * tag 'driver-core-3.15-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core: (42 commits) Revert "sysfs, driver-core: remove unused {sysfs|device}_schedule_callback_owner()" kernfs: cache atomic_write_len in kernfs_open_file numa: fix NULL pointer access and memory leak in unregister_one_node() Revert "driver core: synchronize device shutdown" kernfs: fix off by one error. kernfs: remove duplicate dir.c at the top dir x86: align x86 arch with generic CPU modalias handling cpu: add generic support for CPU feature based module autoloading sysfs: create bin_attributes under the requested group driver core: unexport static function create_syslog_header firmware: use power efficient workqueue for unloading and aborting fw load firmware: give a protection when map page failed firmware: google memconsole driver fixes firmware: fix google/gsmi duplicate efivars_sysfs_init() drivers/base: delete non-required instances of include <linux/init.h> kernfs: fix kernfs_node_from_dentry() ACPI / platform: drop redundant ACPI_HANDLE check kernfs: fix hash calculation in kernfs_rename_ns() kernfs: add CONFIG_KERNFS sysfs, kobject: add sysfs wrapper for kernfs_enable_ns() ...
2014-03-31Merge branch 'x86-asmlinkage-for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull x86 LTO changes from Peter Anvin: "More infrastructure work in preparation for link-time optimization (LTO). Most of these changes is to make sure symbols accessed from assembly code are properly marked as visible so the linker doesn't remove them. My understanding is that the changes to support LTO are still not upstream in binutils, but are on the way there. This patchset should conclude the x86-specific changes, and remaining patches to actually enable LTO will be fed through the Kbuild tree (other than keeping up with changes to the x86 code base, of course), although not necessarily in this merge window" * 'x86-asmlinkage-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (25 commits) Kbuild, lto: Handle basic LTO in modpost Kbuild, lto: Disable LTO for asm-offsets.c Kbuild, lto: Add a gcc-ld script to let run gcc as ld Kbuild, lto: add ld-version and ld-ifversion macros Kbuild, lto: Drop .number postfixes in modpost Kbuild, lto, workaround: Don't warn for initcall_reference in modpost lto: Disable LTO for sys_ni lto: Handle LTO common symbols in module loader lto, workaround: Add workaround for initcall reordering lto: Make asmlinkage __visible x86, lto: Disable LTO for the x86 VDSO initconst, x86: Fix initconst mistake in ts5500 code initconst: Fix initconst mistake in dcdbas asmlinkage: Make trace_hardirqs_on/off_caller visible asmlinkage, x86: Fix 32bit memcpy for LTO asmlinkage Make __stack_chk_failed and memcmp visible asmlinkage: Mark rwsem functions that can be called from assembler asmlinkage asmlinkage: Make main_extable_sort_needed visible asmlinkage, mutex: Mark __visible asmlinkage: Make trace_hardirq visible ...
2014-03-31Merge remote-tracking branch 'robh/for-next' into devicetree/nextGrant Likely
2014-03-10revert "kallsyms: fix absolute addresses for kASLR"Andrew Morton
Revert the recently applied 0f55159d091c ("kallsyms: fix absolute addresses for kASLR"). Kees said : This got NAKed, please don't apply -- this patch works for x86 and : ARM, but may cause problems for others: : : https://lkml.org/lkml/2014/2/24/718 It appears that Kees will be fixing all this up for 3.15. Cc: Andy Honig <ahonig@google.com> Cc: Kees Cook <keescook@chromium.org> Cc: Michal Marek <mmarek@suse.cz> Cc: Rusty Russell <rusty@rustcorp.com.au> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2014-03-07Merge branch 'fixes' of git://ftp.arm.linux.org.uk/~rmk/linux-armLinus Torvalds
Pull ARM fixes from Russell King: "A number of ARM updates for -rc, covering mostly ARM specific code, but with one change to modpost.c to allow Thumb section mismatches to be detected. ARM changes include reporting when an attempt is made to boot a LPAE kernel on hardware which does not support LPAE, rather than just being silent about it. A number of other minor fixes are included too" * 'fixes' of git://ftp.arm.linux.org.uk/~rmk/linux-arm: ARM: 7992/1: boot: compressed: ignore bswapsdi2.S ARM: 7991/1: sa1100: fix compile problem on Collie ARM: fix noMMU kallsyms symbol filtering ARM: 7980/1: kernel: improve error message when LPAE config doesn't match CPU ARM: 7964/1: Detect section mismatches in thumb relocations ARM: 7963/1: mm: report both sections from PMD
2014-03-04kallsyms: fix absolute addresses for kASLRAndy Honig
Currently symbols that are absolute addresses are incorrectly displayed in /proc/kallsyms if the kernel is loaded with kASLR. The problem was that the scripts/kallsyms.c file which generates the array of symbol names and addresses uses an relocatable value for all symbols, even absolute symbols. This patch fixes that. Several kallsyms output in different boot states for comparison: $ egrep '_(stext|_per_cpu_(start|end))' /root/kallsyms.nokaslr 0000000000000000 D __per_cpu_start 0000000000014280 D __per_cpu_end ffffffff810001c8 T _stext $ egrep '_(stext|_per_cpu_(start|end))' /root/kallsyms.kaslr1 000000001f200000 D __per_cpu_start 000000001f214280 D __per_cpu_end ffffffffa02001c8 T _stext $ egrep '_(stext|_per_cpu_(start|end))' /root/kallsyms.kaslr2 000000000d400000 D __per_cpu_start 000000000d414280 D __per_cpu_end ffffffff8e4001c8 T _stext $ egrep '_(stext|_per_cpu_(start|end))' /root/kallsyms.kaslr-fixed 0000000000000000 D __per_cpu_start 0000000000014280 D __per_cpu_end ffffffffadc001c8 T _stext Signed-off-by: Andy Honig <ahonig@google.com> Signed-off-by: Kees Cook <keescook@chromium.org> Cc: Michal Marek <mmarek@suse.cz> Cc: Rusty Russell <rusty@rustcorp.com.au> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2014-03-04scripts/gen_initramfs_list.sh: fix flags for initramfs LZ4 compressionDaniel M. Weeks
LZ4 as implemented in the kernel differs from the default method now used by the reference implementation of LZ4. Until the in-kernel method is updated to support the new default, passing the legacy flag (-l) to the compressor is necessary. Without this flag the kernel-generated, LZ4-compressed initramfs is junk. Kyungsik said: : It seems that lz4 supports legacy format with the same option as lz4c : does. Just looking at the first few bytes of lz4 compressed image, we can : see whether it is new format or not. : : It shows new format magic number without this patch. New format magic : number is 0x184d2204. : : $ hexdump -C ./initramfs_data.cpio.lz4 |more : 00000000 04 22 4d 18 64 70 b9 69 (Little Endian) : ... : : Currently kernel supports legacy format only. Signed-off-by: Daniel M. Weeks <dan@danweeks.net> Cc: Michal Marek <mmarek@suse.cz> Acked-by: Kyungsik Lee <kyungsik.lee@lge.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2014-03-04Merge tag 'v3.14-rc5' into HEADGrant Likely
Linux 3.14-rc5
2014-03-02Merge 3.14-rc5 into driver-core-nextGreg Kroah-Hartman
We want the fixes in here.
2014-02-20kbuild: dtbs_install: new make targetJason Cooper
Unlike other build products in the Linux kernel, there is no 'make *install' mechanism to put devicetree blobs in a standard place. This commit adds a new 'dtbs_install' make target which copies all of the dtbs into the INSTALL_DTBS_PATH directory. INSTALL_DTBS_PATH can be set before calling make to change the default install directory. If not set then it defaults to: $INSTALL_PATH/dtbs/$KERNELRELEASE. This is done to keep dtbs from different kernel versions separate until things have settled down. Once the dtbs are stable, and not so strongly linked to the kernel version, the devicetree files will most likely move to their own repo. Users will need to upgrade install scripts at that time. v7: (reworked by Grant Likely) - Moved rules from arch/arm/Makefile to arch/arm/boot/dts/Makefile so that each dtb install could have a separate target and be reported as part of the make output. - Fixed dependency problem to ensure $KERNELRELEASE is calculated before attempting to install - Removed option to call external script. Copying the files should be sufficient and a build system can post-process the install directory. Despite the fact an external script is used for installing the kernel, I don't think that is a pattern that should be encouraged. I would rather see buildroot type tools post process the install directory to rename or move dtb files after installing to a staging directory. - Plus it is easy to add a hook after the fact without blocking the rest of this feature. - Move the helper targets into scripts/Makefile.lib with the rest of the common dtb rules Signed-off-by: Jason Cooper <jason@lakedaemon.net> Signed-off-by: Grant Likely <grant.likely@linaro.org> Cc: Michal Marek <mmarek@suse.cz> Cc: Russell King <linux@arm.linux.org.uk> Cc: Rob Herring <robh+dt@kernel.org>
2014-02-20of: Move testcase FDT data into drivers/ofGrant Likely
The testcase data is usable by any platform. This patch moves it into the drivers/of directory so it can be included by any architecture. Using the test cases requires manually adding #include <testcases.dtsi> to the end of the boards .dtsi file and enabling CONFIG_OF_SELFTEST. Not pretty though. A useful project would be to make the testcase code easier to execute. Signed-off-by: Grant Likely <grant.likely@linaro.org>
2014-02-18x86: align x86 arch with generic CPU modalias handlingArd Biesheuvel
The x86 CPU feature modalias handling existed before it was reimplemented generically. This patch aligns the x86 handling so that it (a) reuses some more code that is now generic; (b) uses the generic format for the modalias module metadata entry, i.e., it now uses 'cpu:type:x86,venVVVVfamFFFFmodMMMM:feature:,XXXX,YYYY' instead of the 'x86cpu:vendor:VVVV:family:FFFF:model:MMMM:feature:,XXXX,YYYY' that was used before. Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org> Acked-by: H. Peter Anvin <hpa@linux.intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-02-18cpu: add generic support for CPU feature based module autoloadingArd Biesheuvel
This patch adds support for advertising optional CPU features over udev using the modalias, and for declaring compatibility with/dependency upon such a feature in a module. The mapping between feature numbers and actual features should be provided by the architecture in a file called <asm/cpufeature.h> which exports the following functions/macros: - cpu_feature(FEAT), a preprocessor macro that maps token FEAT to a numeric index; - bool cpu_have_feature(n), returning whether this CPU has support for feature #n; - MAX_CPU_FEATURES, an upper bound for 'n' in the previous function. The feature can then be enabled by setting CONFIG_GENERIC_CPU_AUTOPROBE for the architecture. For instance, a module that registers its module init function using module_cpu_feature_match(FEAT_X, module_init_function) will be probed automatically when the CPU's support for the 'FEAT_X' feature is advertised over udev, and will only allow the module to be loaded by hand if the 'FEAT_X' feature is supported. Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-02-18ARM: 7964/1: Detect section mismatches in thumb relocationsDavid A. Long
Add processing for normally encountered thumb relocation types so that section mismatches will be detected. Comment from Rusty Russell follows: Happiest for this to go through an ARM tree, so: Signed-off-by: David A. Long <dave.long@linaro.org> Acked-by: Rusty Russell <rusty@rustcorp.com.au> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2014-02-14Merge tag 'usb-3.14-rc3' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb Pull USB fixes from Greg KH: "Here is a bunch of USB fixes for 3.14-rc3. Most of these are xhci reverts, fixing a bunch of reported issues with USB 3 host controller issues that loads of people have been hitting (with the exception of kernel developers, all of our machines seem to be working fine, which is why these took so long to get resolved...) There are some other minor fixes and new device ids, as ususal. All have been in linux-next successfully" * tag 'usb-3.14-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb: (22 commits) usb: option: blacklist ZTE MF667 net interface Revert "usb: xhci: Link TRB must not occur within a USB payload burst" Revert "xhci: Avoid infinite loop when sg urb requires too many trbs" Revert "xhci: Set scatter-gather limit to avoid failed block writes." xhci 1.0: Limit arbitrarily-aligned scatter gather. Modpost: fixed USB alias generation for ranges including 0x9 and 0xA usb: core: Fix potential memory leak adding dyn USBdevice IDs USB: ftdi_sio: add Tagsys RFID Reader IDs usb: qcserial: add Netgear Aircard 340U usb-storage: enable multi-LUN scanning when needed USB: simple: add Dynastream ANT USB-m Stick device support usb-storage: add unusual-devs entry for BlackBerry 9000 usb-storage: restrict bcdDevice range for Super Top in Cypress ATACB usb: phy: move some error messages to debug usb: ftdi_sio: add Mindstorms EV3 console adapter usb: dwc2: fix memory corruption in dwc2 driver usb: dwc2: fix role switch breakage usb: dwc2: bail out early when booting with "nousb" Revert "xhci: replace xhci_read_64() with readq()" Revert "xhci: replace xhci_write_64() with writeq()" ...
2014-02-13Kbuild, lto: Handle basic LTO in modpostAndi Kleen
- Don't warn about LTO marker symbols. modpost runs before the linker, so the module is not necessarily LTOed yet. - Don't complain about .gnu.lto* sections Signed-off-by: Andi Kleen <ak@linux.intel.com> Link: http://lkml.kernel.org/r/1391846481-31491-13-git-send-email-ak@linux.intel.com Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
2014-02-13Kbuild, lto: Disable LTO for asm-offsets.cAndi Kleen
The asm-offset.c technique to fish data out of the assembler file does not work with LTO. Just disable for the asm-offset.c build. Signed-off-by: Andi Kleen <ak@linux.intel.com> Link: http://lkml.kernel.org/r/1391846481-31491-11-git-send-email-ak@linux.intel.com Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
2014-02-13Kbuild, lto: Add a gcc-ld script to let run gcc as ldAndi Kleen
For LTO we need to run the link step with gcc, not ld. Since there are a lot of linker options passed to it, add a gcc-ld wrapper that wraps them as -Wl, Signed-off-by: Andi Kleen <ak@linux.intel.com> Link: http://lkml.kernel.org/r/1391846481-31491-10-git-send-email-ak@linux.intel.com Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
2014-02-13Kbuild, lto: add ld-version and ld-ifversion macrosAndi Kleen
To check the linker version. Used by the LTO makefile. Signed-off-by: Andi Kleen <ak@linux.intel.com> Link: http://lkml.kernel.org/r/1391846481-31491-9-git-send-email-ak@linux.intel.com Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
2014-02-13Kbuild, lto: Drop .number postfixes in modpostAndi Kleen
LTO turns all global symbols effectively into statics. This has the side effect that they all have a .NUMBER postfix to make them unique. In modpost drop this postfix because it confuses it. Signed-off-by: Andi Kleen <ak@linux.intel.com> Link: http://lkml.kernel.org/r/1391846481-31491-8-git-send-email-ak@linux.intel.com Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
2014-02-13Kbuild, lto, workaround: Don't warn for initcall_reference in modpostAndi Kleen
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>
2014-02-10checkpatch: fix detection of git repositoryRichard Genoud
Since git v1.7.7, the .git directory can be a file when, for example, the kernel is a submodule of another git super project. So, the check "-d .git" is not working anymore in this case. Using a more generic check like "-e .git" corrects this behaviour. Signed-off-by: Richard Genoud <richard.genoud@gmail.com> Cc: Andy Whitcroft <apw@canonical.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>
2014-02-10get_maintainer: fix detection of git repositoryRichard Genoud
Since git v1.7.7, the .git directory can be a file when, for example, the kernel is a submodule of another git super project. So, the check "-d .git" is not working anymore in this case. Using a more generic check like "-e .git" corrects this behaviour. Signed-off-by: Richard Genoud <richard.genoud@gmail.com> Cc: Andy Whitcroft <apw@canonical.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>
2014-02-07Modpost: fixed USB alias generation for ranges including 0x9 and 0xAJan Moskyto Matejka
Commit afe2dab4f6 ("USB: add hex/bcd detection to usb modalias generation") changed the routine that generates alias ranges. Before that change, only digits 0-9 were supported; the commit tried to fix the case when the range includes higher values than 0x9. Unfortunately, the commit didn't fix the case when the range includes both 0x9 and 0xA, meaning that the final range must look like [x-9A-y] where x <= 0x9 and y >= 0xA -- instead the [x-9A-x] range was produced. Modprobe doesn't complain as it sees no difference between no-match and bad-pattern results of fnmatch(). Fixing this simple bug to fix the aliases. Also changing the hardcoded beginning of the range to uppercase as all the other letters are also uppercase in the device version numbers. Fortunately, this affects only the dvb-usb-dib0700 module, AFAIK. Signed-off-by: Jan Moskyto Matejka <mq@suse.cz> Cc: stable <stable@vger.kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-02-03Merge branch 'devicetree/dtc' into devicetree/nextGrant Likely
Branch to upgrade DTC toolchain to version 1.4.0
2014-02-01Merge branch 'misc' of ↵Linus Torvalds
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
2014-01-30Merge branch 'kbuild' of ↵Linus Torvalds
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]
2014-01-27Merge branch 'akpm' (incoming from Andrew)Linus Torvalds
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 ...
2014-01-27Merge branch 'next' of ↵Linus Torvalds
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 ...
2014-01-27checkpatch.pl: check for function declarations without argumentsJoe Perches
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>
2014-01-24Merge tag 'pm+acpi-3.14-rc1' of ↵Linus Torvalds
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 ...
2014-01-23checkpatch: prefer ether_addr_copy to memcpy(foo, bar, ETH_ALEN)Joe Perches
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>
2014-01-23checkpatch: add DT compatible string documentation checksRob Herring
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>
2014-01-23checkpatch: only flag FSF address, not gnu.org URLAlexander Duyck
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>
2014-01-23checkpatch: add tests for function pointer style misusesJoe Perches
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>
2014-01-23checkpatch: update the FSF/GPL address checkJoe Perches
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>
2014-01-23checkpatch: check for if's with unnecessary parenthesesJoe Perches
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>