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2016-08-02checkpatch: if no filenames then read stdinAllen Hubbe1-2/+2
If no filenames are given, then read the patch from stdin. Link: http://lkml.kernel.org/r/a8784f291ccb5067361992bf5d41ff6cfb0ce5cb.1469830917.git.allenbh@gmail.com Signed-off-by: Allen Hubbe <allenbh@gmail.com> Acked-by: Joe Perches <joe@perches.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>
2016-08-02checkpatch: check signoff when reading stdinAllen Hubbe1-1/+3
Signoff was not checked if the filename is '-', indicating reading the patch from stdin. Commands such as the below would not warn about a missing signoff, because the patch filename is '-'. This change allows checkpatch to warn about a missing signoff, even if the input filename is '-', but only if the patch has a commit message. git show --pretty=email | scripts/checkpatch.pl - A more common use of checkpatch with stdin is for piping git diff through checkpatch. The diff output would not contain a commit message, and therefore it would not contain a signoff line. For this common use case, a warning should not be printed about the missing signoff. With this change we will only warn about a missing signoff if the input contains a commit message. git diff | scripts/checkpatch.pl - Before this patch, a workaround for the first command was to refer to stdin by a name other than '-'. The workaround is not an elegant solution, because elsewhere checkpatch uses the fact that filename equals '-', such as in setting '$vname' to 'Your patch' for stdin. The command below would report "/dev/stdin has style problems" instead of "Your patch has style problems." git show --pretty=email | scripts/checkpatch.pl /dev/stdin Link: http://lkml.kernel.org/r/48be31e414bddc65bccfa6b1322359be9ba032eb.1469670589.git.allenbh@gmail.com Signed-off-by: Allen Hubbe <allenbh@gmail.com> Acked-by: Joe Perches <joe@perches.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>
2016-08-02checkpatch: improve 'bare use of' signed/unsigned types warningJoe Perches1-1/+1
Fix false positive warning of identifiers ending in signed with an = assignment of WARNING: Prefer 'signed int' to bare use of 'signed'. Link: http://lkml.kernel.org/r/6a0e24c3e9102337528ecfcbbe91a0eb5b4820ed.1469529497.git.joe@perches.com Signed-off-by: Joe Perches <joe@perches.com> Reported-by: Alan Douglas <alanjhd@gmail.com> 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>
2016-08-02checkpatch: don't complain about BIT macro in uapiTomas Winkler1-2/+3
BIT macro cannot be exported to UAPI, don't complain about it. Link: http://lkml.kernel.org/r/1468707033-16173-1-git-send-email-tomas.winkler@intel.com Signed-off-by: Tomas Winkler <tomas.winkler@intel.com> Acked-by: Joe Perches <joe@perches.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2016-08-02checkpatch: yet another commit id improvementJoe Perches1-2/+2
Using \b isn't good enough to isolate what appears to be a commit id in a commit message. Make sure there is a space or a quote like character after a continuous run of hexadecimal characters that could be a commit id. Link: http://lkml.kernel.org/r/fdd22b47463a21c21132edbb8aa35e372950a1e6.1468869915.git.joe@perches.com Signed-off-by: Joe Perches <joe@perches.com> Cc: "Zhuo, Qiuxu" <qiuxu.zhuo@intel.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2016-08-02checkpatch: allow c99 style // commentsJoe Perches1-0/+6
Sanitise the lines that contain c99 comments so that the error doesn't get emitted. Link: http://lkml.kernel.org/r/d4d22c34ad7bcc1bceb52f0742f76b7a6d585235.1468368420.git.joe@perches.com 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>
2016-08-02checkpatch: skip long lines that use an EFI_GUID macroJoe Perches1-0/+4
These are also possible single line uses that exceed the generic maximum line length (typically 80 columns) Link: http://lkml.kernel.org/r/32a6a85fbd6161f1bb55ce176a464e44591afc5b.1468368420.git.joe@perches.com 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>
2016-08-02get_maintainer.pl: reduce need for command-line option -fJoe Perches1-1/+19
If a vcs is used, look to see if the vcs tracks the file specified and so the -f option becomes optional. Link: http://lkml.kernel.org/r/7c86a8df0d48770c45778a43b6b3e4627b2a90ee.1469746395.git.joe@perches.com 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>
2016-07-30Merge tag 'devicetree-for-4.8' of ↵Linus Torvalds2-1/+1214
git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux Pull DeviceTree updates from Rob Herring: - remove most of_platform_populate() calls in arch code. Now the DT core code calls it in the default case and platforms only need to call it if they have special needs - use pr_fmt on all the DT core print statements - CoreSight binding doc improvements to block name descriptions - add dt_to_config script which can parse dts files and list corresponding kernel config options - fix memory leak hit with a PowerMac DT - correct a bunch of STMicro compatible strings to use the correct vendor prefix - fix DA9052 PMIC binding doc to match what is actually used in dts files * tag 'devicetree-for-4.8' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux: (35 commits) documentation: da9052: Update regulator bindings names to match DA9052/53 DTS expectations xtensa: Partially Revert "xtensa: Remove unnecessary of_platform_populate with default match table" xtensa: Fix build error due to missing include file MIPS: ath79: Add missing include file Fix spelling errors in Documentation/devicetree ARM: dts: fix STMicroelectronics compatible strings powerpc/dts: fix STMicroelectronics compatible strings Documentation: dt: i2c: use correct STMicroelectronics vendor prefix scripts/dtc: dt_to_config - kernel config options for a devicetree of: fdt: mark unflattened tree as detached of: overlay: add resolver error prints coresight: document binding acronyms Documentation/devicetree: document cavium-pip rx-delay/tx-delay properties of: use pr_fmt prefix for all console printing of/irq: Mark initialised interrupt controllers as populated of: fix memory leak related to safe_name() Revert "of/platform: export of_default_bus_match_table" of: unittest: use of_platform_default_populate() to populate default bus memory: omap-gpmc: use of_platform_default_populate() to populate default bus bus: uniphier-system-bus: use of_platform_default_populate() to populate default bus ...
2016-07-29Merge branch 'next' of ↵Linus Torvalds1-8/+26
git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security Pull security subsystem updates from James Morris: "Highlights: - TPM core and driver updates/fixes - IPv6 security labeling (CALIPSO) - Lots of Apparmor fixes - Seccomp: remove 2-phase API, close hole where ptrace can change syscall #" * 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security: (156 commits) apparmor: fix SECURITY_APPARMOR_HASH_DEFAULT parameter handling tpm: Add TPM 2.0 support to the Nuvoton i2c driver (NPCT6xx family) tpm: Factor out common startup code tpm: use devm_add_action_or_reset tpm2_i2c_nuvoton: add irq validity check tpm: read burstcount from TPM_STS in one 32-bit transaction tpm: fix byte-order for the value read by tpm2_get_tpm_pt tpm_tis_core: convert max timeouts from msec to jiffies apparmor: fix arg_size computation for when setprocattr is null terminated apparmor: fix oops, validate buffer size in apparmor_setprocattr() apparmor: do not expose kernel stack apparmor: fix module parameters can be changed after policy is locked apparmor: fix oops in profile_unpack() when policy_db is not present apparmor: don't check for vmalloc_addr if kvzalloc() failed apparmor: add missing id bounds check on dfa verification apparmor: allow SYS_CAP_RESOURCE to be sufficient to prlimit another task apparmor: use list_next_entry instead of list_entry_next apparmor: fix refcount race when finding a child profile apparmor: fix ref count leak when profile sha1 hash is read apparmor: check that xindex is in trans_table bounds ...
2016-07-28Merge tag 'libnvdimm-for-4.8' of ↵Linus Torvalds1-1/+0
git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm Pull libnvdimm updates from Dan Williams: - Replace pcommit with ADR / directed-flushing. The pcommit instruction, which has not shipped on any product, is deprecated. Instead, the requirement is that platforms implement either ADR, or provide one or more flush addresses per nvdimm. ADR (Asynchronous DRAM Refresh) flushes data in posted write buffers to the memory controller on a power-fail event. Flush addresses are defined in ACPI 6.x as an NVDIMM Firmware Interface Table (NFIT) sub-structure: "Flush Hint Address Structure". A flush hint is an mmio address that when written and fenced assures that all previous posted writes targeting a given dimm have been flushed to media. - On-demand ARS (address range scrub). Linux uses the results of the ACPI ARS commands to track bad blocks in pmem devices. When latent errors are detected we re-scrub the media to refresh the bad block list, userspace can also request a re-scrub at any time. - Support for the Microsoft DSM (device specific method) command format. - Support for EDK2/OVMF virtual disk device memory ranges. - Various fixes and cleanups across the subsystem. * tag 'libnvdimm-for-4.8' of git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm: (41 commits) libnvdimm-btt: Delete an unnecessary check before the function call "__nd_device_register" nfit: do an ARS scrub on hitting a latent media error nfit: move to nfit/ sub-directory nfit, libnvdimm: allow an ARS scrub to be triggered on demand libnvdimm: register nvdimm_bus devices with an nd_bus driver pmem: clarify a debug print in pmem_clear_poison x86/insn: remove pcommit Revert "KVM: x86: add pcommit support" nfit, tools/testing/nvdimm/: unify shutdown paths libnvdimm: move ->module to struct nvdimm_bus_descriptor nfit: cleanup acpi_nfit_init calling convention nfit: fix _FIT evaluation memory leak + use after free tools/testing/nvdimm: add manufacturing_{date|location} dimm properties tools/testing/nvdimm: add virtual ramdisk range acpi, nfit: treat virtual ramdisk SPA as pmem region pmem: kill __pmem address space pmem: kill wmb_pmem() libnvdimm, pmem: use nvdimm_flush() for namespace I/O writes fs/dax: remove wmb_pmem() libnvdimm, pmem: flush posted-write queues on shutdown ...
2016-07-27Merge tag 'media/v4.8-4' of ↵Linus Torvalds2-0/+2659
git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media Pull media documentation updates from Mauro Carvalho Chehab: "This patch series does the conversion of all media documentation stuff to Restrutured Text markup format and add them to the Documentation/index.rst file. The media documentation was grouped into 4 books: - media uAPI - media kAPI - V4L driver-specific documentation - DVB driver-specific documentation It also contains several documentation improvements and one fixup patch for a core issue with cropcap. PS. After this patch series, the media DocBook is deprecated and should be removed. I'll add such patch on a future pull request" * tag 'media/v4.8-4' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media: (322 commits) [media] cx23885-cardlist.rst: add a new card [media] doc-rst: add some needed escape codes [media] doc-rst: kapi: use :c:func: instead of :cpp:func doc-rst: kernel-doc: fix a change introduced by mistake [media] v4l2-ioctl.h add debug info for struct v4l2_ioctl_ops [media] dvb_ringbuffer.h: some documentation improvements [media] v4l2-ctrls.h: fully document the header file [media] doc-rst: Fix some typedef ugly warnings [media] doc-rst: reorganize the kAPI v4l2 chapters [media] rename v4l2-framework.rst to v4l2-intro.rst [media] move V4L2 clocks to a separate .rst file [media] v4l2-fh.rst: add cross references and markups [media] v4l2-fh.rst: add fh contents from v4l2-framework.rst [media] v4l2-fh.h: add documentation for it [media] v4l2-event.rst: add cross-references and markups [media] v4l2-event.h: document all functions [media] v4l2-event.rst: add text from v4l2-framework.rst [media] v4l2-framework.rst: remove videobuf quick chapter [media] v4l2-dev: add cross-references and improve markup [media] doc-rst: move v4l2-dev doc to a separate file ...
2016-07-27Disable "maybe-uninitialized" warning globallyLinus Torvalds1-4/+0
Several build configurations had already disabled this warning because it generates a lot of false positives. But some had not, and it was still enabled for "allmodconfig" builds, for example. Looking at the warnings produced, every single one I looked at was a false positive, and the warnings are frequent enough (and big enough) that they can easily hide real problems that you don't notice in the noise generated by -Wmaybe-uninitialized. The warning is good in theory, but this is a classic case of a warning that causes more problems than the warning can solve. If gcc gets better at avoiding false positives, we may be able to re-enable this warning. But as is, we're better off without it, and I want to be able to see the *real* warnings. Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2016-07-27Merge branch 'topic/docs-next' into v4l_for_linusMauro Carvalho Chehab2-0/+2659
* topic/docs-next: (322 commits) [media] cx23885-cardlist.rst: add a new card [media] doc-rst: add some needed escape codes [media] doc-rst: kapi: use :c:func: instead of :cpp:func doc-rst: kernel-doc: fix a change introduced by mistake [media] v4l2-ioctl.h add debug info for struct v4l2_ioctl_ops [media] dvb_ringbuffer.h: some documentation improvements [media] v4l2-ctrls.h: fully document the header file [media] doc-rst: Fix some typedef ugly warnings [media] doc-rst: reorganize the kAPI v4l2 chapters [media] rename v4l2-framework.rst to v4l2-intro.rst [media] move V4L2 clocks to a separate .rst file [media] v4l2-fh.rst: add cross references and markups [media] v4l2-fh.rst: add fh contents from v4l2-framework.rst [media] v4l2-fh.h: add documentation for it [media] v4l2-event.rst: add cross-references and markups [media] v4l2-event.h: document all functions [media] v4l2-event.rst: add text from v4l2-framework.rst [media] v4l2-framework.rst: remove videobuf quick chapter [media] v4l2-dev: add cross-references and improve markup [media] doc-rst: move v4l2-dev doc to a separate file ...
2016-07-26Merge branch 'akpm' (patches from Andrew)Linus Torvalds2-2/+5
Merge updates from Andrew Morton: - a few misc bits - ocfs2 - most(?) of MM * emailed patches from Andrew Morton <akpm@linux-foundation.org>: (125 commits) thp: fix comments of __pmd_trans_huge_lock() cgroup: remove unnecessary 0 check from css_from_id() cgroup: fix idr leak for the first cgroup root mm: memcontrol: fix documentation for compound parameter mm: memcontrol: remove BUG_ON in uncharge_list mm: fix build warnings in <linux/compaction.h> mm, thp: convert from optimistic swapin collapsing to conservative mm, thp: fix comment inconsistency for swapin readahead functions thp: update Documentation/{vm/transhuge,filesystems/proc}.txt shmem: split huge pages beyond i_size under memory pressure thp: introduce CONFIG_TRANSPARENT_HUGE_PAGECACHE khugepaged: add support of collapse for tmpfs/shmem pages shmem: make shmem_inode_info::lock irq-safe khugepaged: move up_read(mmap_sem) out of khugepaged_alloc_page() thp: extract khugepaged from mm/huge_memory.c shmem, thp: respect MADV_{NO,}HUGEPAGE for file mappings shmem: add huge pages support shmem: get_unmapped_area align huge page shmem: prepare huge= mount option and sysfs knob mm, rmap: account shmem thp pages ...
2016-07-26Merge tag 'pm-4.8-rc1' of ↵Linus Torvalds1-1167/+2474
git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm Pull power management updates from Rafael Wysocki: "Again, the majority of changes go into the cpufreq subsystem, but there are no big features this time. The cpufreq changes that stand out somewhat are the governor interface rework and improvements related to the handling of frequency tables. Apart from those, there are fixes and new device/CPU IDs in drivers, cleanups and an improvement of the new schedutil governor. Next, there are some changes in the hibernation core, including a fix for a nasty problem related to the MONITOR/MWAIT usage by CPU offline during resume from hibernation, a few core improvements related to memory management during resume, a couple of additional debug features and cleanups. Finally, we have some fixes and cleanups in the devfreq subsystem, generic power domains framework improvements related to system suspend/resume, support for some new chips in intel_idle and in the power capping RAPL driver, a new version of the AnalyzeSuspend utility and some assorted fixes and cleanups. Specifics: - Rework the cpufreq governor interface to make it more straightforward and modify the conservative governor to avoid using transition notifications (Rafael Wysocki). - Rework the handling of frequency tables by the cpufreq core to make it more efficient (Viresh Kumar). - Modify the schedutil governor to reduce the number of wakeups it causes to occur in cases when the CPU frequency doesn't need to be changed (Steve Muckle, Viresh Kumar). - Fix some minor issues and clean up code in the cpufreq core and governors (Rafael Wysocki, Viresh Kumar). - Add Intel Broxton support to the intel_pstate driver (Srinivas Pandruvada). - Fix problems related to the config TDP feature and to the validity of the MSR_HWP_INTERRUPT register in intel_pstate (Jan Kiszka, Srinivas Pandruvada). - Make intel_pstate update the cpu_frequency tracepoint even if the frequency doesn't change to avoid confusing powertop (Rafael Wysocki). - Clean up the usage of __init/__initdata in intel_pstate, mark some of its internal variables as __read_mostly and drop an unused structure element from it (Jisheng Zhang, Carsten Emde). - Clean up the usage of some duplicate MSR symbols in intel_pstate and turbostat (Srinivas Pandruvada). - Update/fix the powernv, s3c24xx and mvebu cpufreq drivers (Akshay Adiga, Viresh Kumar, Ben Dooks). - Fix a regression (introduced during the 4.5 cycle) in the pcc-cpufreq driver by reverting the problematic commit (Andreas Herrmann). - Add support for Intel Denverton to intel_idle, clean up Broxton support in it and make it explicitly non-modular (Jacob Pan, Jan Beulich, Paul Gortmaker). - Add support for Denverton and Ivy Bridge server to the Intel RAPL power capping driver and make it more careful about the handing of MSRs that may not be present (Jacob Pan, Xiaolong Wang). - Fix resume from hibernation on x86-64 by making the CPU offline during resume avoid using MONITOR/MWAIT in the "play dead" loop which may lead to an inadvertent "revival" of a "dead" CPU and a page fault leading to a kernel crash from it (Rafael Wysocki). - Make memory management during resume from hibernation more straightforward (Rafael Wysocki). - Add debug features that should help to detect problems related to hibernation and resume from it (Rafael Wysocki, Chen Yu). - Clean up hibernation core somewhat (Rafael Wysocki). - Prevent KASAN from instrumenting the hibernation core which leads to large numbers of false-positives from it (James Morse). - Prevent PM (hibernate and suspend) notifiers from being called during the cleanup phase if they have not been called during the corresponding preparation phase which is possible if one of the other notifiers returns an error at that time (Lianwei Wang). - Improve suspend-related debug printout in the tasks freezer and clean up suspend-related console handling (Roger Lu, Borislav Petkov). - Update the AnalyzeSuspend script in the kernel sources to version 4.2 (Todd Brandt). - Modify the generic power domains framework to make it handle system suspend/resume better (Ulf Hansson). - Make the runtime PM framework avoid resuming devices synchronously when user space changes the runtime PM settings for them and improve its error reporting (Rafael Wysocki, Linus Walleij). - Fix error paths in devfreq drivers (exynos, exynos-ppmu, exynos-bus) and in the core, make some devfreq code explicitly non-modular and change some of it into tristate (Bartlomiej Zolnierkiewicz, Peter Chen, Paul Gortmaker). - Add DT support to the generic PM clocks management code and make it export some more symbols (Jon Hunter, Paul Gortmaker). - Make the PCI PM core code slightly more robust against possible driver errors (Andy Shevchenko). - Make it possible to change DESTDIR and PREFIX in turbostat (Andy Shevchenko)" * tag 'pm-4.8-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (89 commits) Revert "cpufreq: pcc-cpufreq: update default value of cpuinfo_transition_latency" PM / hibernate: Introduce test_resume mode for hibernation cpufreq: export cpufreq_driver_resolve_freq() cpufreq: Disallow ->resolve_freq() for drivers providing ->target_index() PCI / PM: check all fields in pci_set_platform_pm() cpufreq: acpi-cpufreq: use cached frequency mapping when possible cpufreq: schedutil: map raw required frequency to driver frequency cpufreq: add cpufreq_driver_resolve_freq() cpufreq: intel_pstate: Check cpuid for MSR_HWP_INTERRUPT intel_pstate: Update cpu_frequency tracepoint every time cpufreq: intel_pstate: clean remnant struct element PM / tools: scripts: AnalyzeSuspend v4.2 x86 / hibernate: Use hlt_play_dead() when resuming from hibernation cpufreq: powernv: Replacing pstate_id with frequency table index intel_pstate: Fix MSR_CONFIG_TDP_x addressing in core_get_max_pstate() PM / hibernate: Image data protection during restoration PM / hibernate: Add missing braces in __register_nosave_region() PM / hibernate: Clean up comments in snapshot.c PM / hibernate: Clean up function headers in snapshot.c PM / hibernate: Add missing braces in hibernate_setup() ...
2016-07-26mm: clean up non-standard page->_mapcount usersVladimir Davydov1-0/+3
- Add a proper comment to page->_mapcount. - Introduce a macro for generating helper functions. - Place all special page->_mapcount values next to each other so that readers can see all possible values and so we don't get duplicates. Link: http://lkml.kernel.org/r/502f49000e0b63e6c62e338fac6b420bf34fb526.1464079537.git.vdavydov@virtuozzo.com Signed-off-by: Vladimir Davydov <vdavydov@virtuozzo.com> Cc: Johannes Weiner <hannes@cmpxchg.org> Cc: Michal Hocko <mhocko@kernel.org> Cc: Eric Dumazet <eric.dumazet@gmail.com> Cc: Minchan Kim <minchan@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2016-07-26scripts/bloat-o-meter: fix percent on <1% changesRiku Voipio1-2/+2
Python divisions are integer divisions unless at least one parameter is a float. The current bloat-o-meter fails to print sub-percentage changes: Total: Before=10515408, After=10604060, chg 0.000000% Force float division by using one float and pretty the print to two significant decimals: Total: Before=10515408, After=10604060, chg +0.84% Link: http://lkml.kernel.org/r/1465980311-23814-1-git-send-email-riku.voipio@linaro.org Signed-off-by: Riku Voipio <riku.voipio@linaro.org> Reviewed-by: Josh Triplett <josh@joshtriplett.org> Cc: Vineet Gupta <vgupta@synopsys.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>
2016-07-26Merge tag 'docs-for-linus' of git://git.lwn.net/linuxLinus Torvalds1-151/+306
Pull documentation updates from Jonathan Corbet: "Some big changes this month, headlined by the addition of a new formatted documentation mechanism based on the Sphinx system. The objectives here are to make it easier to create better-integrated (and more attractive) documents while (eventually) dumping our one-of-a-kind, cobbled-together system for something that is widely used and maintained by others. There's a fair amount of information what's being done, why, and how to use it in: https://lwn.net/Articles/692704/ https://lwn.net/Articles/692705/ Closer to home, Documentation/kernel-documentation.rst describes how it works. For now, the new system exists alongside the old one; you should soon see the GPU documentation converted over in the DRM pull and some significant media conversion work as well. Once all the docs have been moved over and we're convinced that the rough edges (of which are are a few) have been smoothed over, the DocBook-based stuff should go away. Primary credit is to Jani Nikula for doing the heavy lifting to make this stuff actually work; there has also been notable effort from Markus Heiser, Daniel Vetter, and Mauro Carvalho Chehab. Expect a couple of conflicts on the new index.rst file over the course of the merge window; they are trivially resolvable. That file may be a bit of a conflict magnet in the short term, but I don't expect that situation to last for any real length of time. Beyond that, of course, we have the usual collection of tweaks, updates, and typo fixes" * tag 'docs-for-linus' of git://git.lwn.net/linux: (77 commits) doc-rst: kernel-doc: fix handling of address_space tags Revert "doc/sphinx: Enable keep_warnings" doc-rst: kernel-doc directive, fix state machine reporter docs: deprecate kernel-doc-nano-HOWTO.txt doc/sphinx: Enable keep_warnings Documentation: add watermark_scale_factor to the list of vm systcl file kernel-doc: Fix up warning output docs: Get rid of some kernel-documentation warnings doc-rst: add an option to ignore DocBooks when generating docs workqueue: Fix a typo in workqueue.txt Doc: ocfs: Fix typo in filesystems/ocfs2-online-filecheck.txt Documentation/sphinx: skip build if user requested specific DOCBOOKS Documentation: add cleanmediadocs to the documentation targets Add .pyc files to .gitignore Doc: PM: Fix a typo in intel_powerclamp.txt doc-rst: flat-table directive - initial implementation Documentation: add meta-documentation for Sphinx and kernel-doc Documentation: tiny typo fix in usb/gadget_multi.txt Documentation: fix wrong value in md.txt bcache: documentation formatting, edited for clarity, stripe alignment notes ...
2016-07-25Merge branch 'x86-build-for-linus' of ↵Linus Torvalds1-1/+16
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull x86 build updates from Ingo Molnar: "A build system fix and a cleanup" * 'x86-build-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: kbuild: Remove stale asm-generic wrappers kbuild, x86: Track generated headers with generated-y
2016-07-25Merge branches 'pm-sleep' and 'pm-tools'Rafael J. Wysocki1-1167/+2474
* pm-sleep: PM / hibernate: Introduce test_resume mode for hibernation x86 / hibernate: Use hlt_play_dead() when resuming from hibernation PM / hibernate: Image data protection during restoration PM / hibernate: Add missing braces in __register_nosave_region() PM / hibernate: Clean up comments in snapshot.c PM / hibernate: Clean up function headers in snapshot.c PM / hibernate: Add missing braces in hibernate_setup() PM / hibernate: Recycle safe pages after image restoration PM / hibernate: Simplify mark_unsafe_pages() PM / hibernate: Do not free preallocated safe pages during image restore PM / suspend: show workqueue state in suspend flow PM / sleep: make PM notifiers called symmetrically PM / sleep: Make pm_prepare_console() return void PM / Hibernate: Don't let kasan instrument snapshot.c * pm-tools: PM / tools: scripts: AnalyzeSuspend v4.2 tools/turbostat: allow user to alter DESTDIR and PREFIX
2016-07-24Merge tag 'staging-4.8-rc1' of ↵Linus Torvalds2-0/+16
git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging Pull staging and IIO driver updates from Greg KH: "Here is the big Staging and IIO driver update for 4.8-rc1. We ended up adding more code than removing, again, but it's not all that bad. Lots of cleanups all over the staging tree, and new IIO drivers, full details in the shortlog. All of these have been in linux-next for a while with no reported issues" * tag 'staging-4.8-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging: (417 commits) drivers:iio:accel:mma8452: removed unwanted return statements drivers:iio:accel:mma8452: added cleanup provision in case of failure. iio: Add iio.git tree to MAINTAINERS iio:st_pressure: clean useless static channel initializers iio:st_pressure:lps22hb: temperature support iio:st_pressure:lps22hb: open drain support iio:st_pressure: temperature triggered buffering iio:st_pressure: document sampling gains iio:st_pressure: align storagebits on power of 2 iio:st_sensors: align on storagebits boundaries staging:iio:lis3l02dq drop separate driver iio: accel: st_accel: Add lis3l02dq support iio: adc: add missing of_node references to iio_dev iio: adc: ti-ads1015: add indio_dev->dev.of_node reference iio: potentiometer: Fix typo in Kconfig iio: potentiometer: mcp4531: Add device tree binding iio: potentiometer: mcp4531: Add device tree binding documentation iio: potentiometer: mcp4531: Add support for MCP454x, MCP456x, MCP464x and MCP466x iio:imu:mpu6050: icm20608 initial support iio: adc: max1363: Add device tree binding ...
2016-07-23doc-rst: kernel-doc: fix a change introduced by mistakeMauro Carvalho Chehab1-1/+1
changeset b7e67f6c1bf7 ("doc-rst: linux_tv: supress lots of warnings") were meant to touch only on media files, but it also touched at this script by mistake. Revert such change. Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2016-07-23Merge branch 'patchwork' into topic/docs-nextMauro Carvalho Chehab2-1/+2
* patchwork: (1492 commits) [media] cec: always check all_device_types and features [media] cec: poll should check if there is room in the tx queue [media] vivid: support monitor all mode [media] cec: fix test for unconfigured adapter in main message loop [media] cec: limit the size of the transmit queue [media] cec: zero unused msg part after msg->len [media] cec: don't set fh to NULL in CEC_TRANSMIT [media] cec: clear all status fields before transmit and always fill in sequence [media] cec: CEC_RECEIVE overwrote the timeout field [media] cxd2841er: Reading SNR for DVB-C added [media] cxd2841er: Reading BER and UCB for DVB-C added [media] cxd2841er: fix switch-case for DVB-C [media] cxd2841er: fix signal strength scale for ISDB-T [media] cxd2841er: adjust the dB scale for DVB-C [media] cxd2841er: provide signal strength for DVB-C [media] cxd2841er: fix BER report via DVBv5 stats API [media] mb86a20s: apply mask to val after checking for read failure [media] airspy: fix error logic during device register [media] s5p-cec/TODO: add TODO item [media] cec/TODO: drop comment about sphinx documentation ... Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2016-07-23Merge branch 'docs-next' of git://git.lwn.net/linux into topic/docs-nextMauro Carvalho Chehab1-1/+5
* 'docs-next' of git://git.lwn.net/linux: doc-rst: kernel-doc: fix handling of address_space tags Revert "doc/sphinx: Enable keep_warnings" doc-rst: kernel-doc directive, fix state machine reporter docs: deprecate kernel-doc-nano-HOWTO.txt doc/sphinx: Enable keep_warnings Documentation: add watermark_scale_factor to the list of vm systcl file kernel-doc: Fix up warning output docs: Get rid of some kernel-documentation warnings
2016-07-22doc-rst: kernel-doc: fix handling of address_space tagsMauro Carvalho Chehab1-0/+4
The RST cpp:function handler is very pedantic: it doesn't allow any macros like __user on it: Documentation/media/kapi/dtv-core.rst:28: WARNING: Error when parsing function declaration. If the function has no return type: Error in declarator or parameters and qualifiers Invalid definition: Expecting "(" in parameters_and_qualifiers. [error at 8] ssize_t dvb_ringbuffer_pkt_read_user (struct dvb_ringbuffer * rbuf, size_t idx, int offset, u8 __user * buf, size_t len) --------^ If the function has a return type: Error in declarator or parameters and qualifiers If pointer to member declarator: Invalid definition: Expected '::' in pointer to member (function). [error at 37] ssize_t dvb_ringbuffer_pkt_read_user (struct dvb_ringbuffer * rbuf, size_t idx, int offset, u8 __user * buf, size_t len) -------------------------------------^ If declarator-id: Invalid definition: Expecting "," or ")" in parameters_and_qualifiers, got "*". [error at 102] ssize_t dvb_ringbuffer_pkt_read_user (struct dvb_ringbuffer * rbuf, size_t idx, int offset, u8 __user * buf, size_t len) ------------------------------------------------------------------------------------------------------^ So, we have to remove it from the function prototype. Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com> Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2016-07-22scripts/dtc: dt_to_config - kernel config options for a devicetreeGaurav Minocha2-1/+1214
Determining which kernel config options need to be enabled for a given devicetree can be a painful process. Create a new tool to find the drivers that may match a devicetree node compatible, find the kernel config options that enable the driver, and optionally report whether the kernel config option is enabled. Signed-off-by: Gaurav Minocha <gaurav.minocha.os@gmail.com> Signed-off-by: Frank Rowand <frank.rowand@am.sony.com> Signed-off-by: Rob Herring <robh@kernel.org>
2016-07-17kernel-doc: Fix up warning outputDaniel Vetter1-1/+1
While trying to make gpu docs warning free I stumbled over one output which wasn't following proper compiler error output standards. Fix it up for more quickfix awesomeness. Cc: Jonathan Corbet <corbet@lwn.net> Cc: Jani Nikula <jani.nikula@intel.com> Cc: linux-doc@vger.kernel.org Signed-off-by: Daniel Vetter <daniel.vetter@intel.com> Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2016-07-17[media] extract_xc3028.pl: move it to scripts/dirMauro Carvalho Chehab1-0/+1717
This doesn't belong at documentation. Move it to scripts. Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2016-07-17[media] doc-rst: move DVB avulse docs to Documentation/mediaMauro Carvalho Chehab1-0/+942
There are several documentation stuff under Documentation/dvb. Move them to Documentation/media/dvb-drivers and rename them to rst, as they'll soon be converted to rst files. No changes at the documentation. Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2016-07-15PM / tools: scripts: AnalyzeSuspend v4.2Todd Brandt1-1167/+2474
Update AnalyzeSuspend to v4.2: - kprobe support for function tracing - config file support in lieu of command line options - advanced callgraph support for function debug - dev mode for monitoring common sources of delay, e.g. msleep, udelay - many bug fixes and formatting upgrades Signed-off-by: Todd Brandt <todd.e.brandt@linux.intel.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2016-07-15Revert "scripts/gdb: add a Radix Tree Parser"Kieran Bingham3-105/+0
This reverts commit e127a73d41ac ("scripts/gdb: add a Radix Tree Parser") The python implementation of radix-tree was merged at the same time as the radix-tree system was heavily reworked from commit e9256efcc8e3 ("radix-tree: introduce radix_tree_empty") to 3bcadd6fa6c4 ("radix-tree: free up the bottom bit of exceptional entries for reuse") and no longer functions, but also prevents other gdb scripts from loading. This functionality has not yet hit a release, so simply remove it for now Link: http://lkml.kernel.org/r/1467127337-11135-6-git-send-email-kieran@bingham.xyz Signed-off-by: Kieran Bingham <kieran@bingham.xyz> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2016-07-15scripts/gdb: Perform path expansion to lx-symbol's argumentsNikolay Borisov1-1/+1
Python doesn't do automatic expansion of paths. In case one passes path of the from ~/foo/bar the gdb scripts won't automatically expand that and as a result the symbols files won't be loaded. Fix this by explicitly expanding all paths which begin with "~" Link: http://lkml.kernel.org/r/1467127337-11135-5-git-send-email-kieran@bingham.xyz Signed-off-by: Nikolay Borisov <n.borisov.lkml@gmail.com> Signed-off-by: Kieran Bingham <kieran@bingham.xyz> Reviewed-by: Jan Kiszka <jan.kiszka@siemens.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2016-07-15scripts/gdb: add constants.py to .gitignoreOmar Sandoval1-0/+1
Since scripts/gdb/linux/constants.py is autogenerated, this should have been added to .gitignore when it was introduced. Fixes: f197d75fcad1 ("scripts/gdb: provide linux constants") Link: http://lkml.kernel.org/r/1467127337-11135-4-git-send-email-kieran@bingham.xyz Signed-off-by: Omar Sandoval <osandov@fb.com> Signed-off-by: Kieran Bingham <kieran@bingham.xyz> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2016-07-15scripts/gdb: rebuild constants.py on dependancy changeKieran Bingham1-2/+3
The autogenerated constants.py file was only being built on the initial call, and if the constants.py.in file changed. As we are utilising the CPP hooks, we can successfully use the call if_changed_dep rules to determine when to rebuild the file based on it's inclusions. Link: http://lkml.kernel.org/r/1467127337-11135-3-git-send-email-kieran@bingham.xyz Signed-off-by: Kieran Bingham <kieran@bingham.xyz> Reported-by: Jan Kiszka <jan.kiszka@web.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2016-07-15scripts/gdb: silence 'nothing to do' messageKieran Bingham1-0/+1
The constants.py generation, involves a rule to link into the main makefile. This rule has no command and generates a spurious warning message in the build logs when CONFIG_SCRIPTS_GDB is enabled. Fix simply by giving a no-op action Link: http://lkml.kernel.org/r/1467127337-11135-2-git-send-email-kieran@bingham.xyz Signed-off-by: Kieran Bingham <kieran@bingham.xyz> Reported-by: Jan Kiszka <jan.kiszka@siemens.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2016-07-12pmem: kill __pmem address spaceDan Williams1-1/+0
The __pmem address space was meant to annotate codepaths that touch persistent memory and need to coordinate a call to wmb_pmem(). Now that wmb_pmem() is gone, there is little need to keep this annotation. Cc: Christoph Hellwig <hch@lst.de> Cc: Ross Zwisler <ross.zwisler@linux.intel.com> Signed-off-by: Dan Williams <dan.j.williams@intel.com>
2016-07-07kbuild: Remove stale asm-generic wrappersJames Hogan1-1/+16
When a header file is removed from generic-y (often accompanied by the addition of an arch specific header), the generated wrapper file will persist, and in some cases may still take precedence over the new arch header. For example commit f1fe2d21f4e1 ("MIPS: Add definitions for extended context") removed ucontext.h from generic-y in arch/mips/include/asm/, and added an arch/mips/include/uapi/asm/ucontext.h. The continued use of the wrapper when reusing a dirty build tree resulted in build failures in arch/mips/kernel/signal.c: arch/mips/kernel/signal.c: In function ‘sc_to_extcontext’: arch/mips/kernel/signal.c:142:12: error: ‘struct ucontext’ has no member named ‘uc_extcontext’ return &uc->uc_extcontext; ^ Fix by detecting and removing wrapper headers in generated header directories that do not correspond to a filename in generic-y, genhdr-y, or the newly introduced generated-y. Reported-by: Jacek Anaszewski <j.anaszewski@samsung.com> Reported-by: Hauke Mehrtens <hauke@hauke-m.de> Reported-by: Heinrich Schuchardt <xypron.glpk@gmx.de> Signed-off-by: James Hogan <james.hogan@imgtec.com> Acked-by: Arnd Bergmann <arnd@arndb.de> Acked-by: Florian Fainelli <f.fainelli@gmail.com> Cc: linux-arch@vger.kernel.org Cc: linux-mips@linux-mips.org Cc: Paul Burton <paul.burton@imgtec.com> Cc: linux-kbuild@vger.kernel.org Cc: Ralf Baechle <ralf@linux-mips.org> Cc: Michal Marek <mmarek@suse.com> Link: http://lkml.kernel.org/r/1466808144-23209-3-git-send-email-james.hogan@imgtec.com Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2016-07-03doc-rst: linux_tv: remove trailing commentsMauro Carvalho Chehab1-0/+0
The conversion script added some comments at the end. They point to the original DocBook files, with will be removed after the manual fixes. So, they'll be pointing to nowere. So, remove those comments. They'll be forever stored at the Kernel tree. So, if someone wants the references, it is just a matter of looking at the backlog. Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2016-07-03doc-rst: linux_tv: supress lots of warningsMauro Carvalho Chehab1-1/+1
The c language parser checks if there are duplicated object definitions. That causes lots of warnings like: WARNING: duplicate C object description of ioctl Let's remove those by telling Sphinx that the language for those objects are c++. The look of the descriptions will be close, and the warnings will be gone. Please notice that we had to keep a few of them as C, as the c++ parser seems to be broken when it finds an enum. Yet, this reduced from 219 warnings to 143, with is a good thing. Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2016-06-26staging: fsl-mc: add support for device table matchingStuart Yoder2-0/+16
Move the definition of fsl_mc_device_id to its proper location in mod_devicetable.h, and add fsl-mc bus support to devicetable-offsets.c and file2alias.c to enable device table matching. With this patch udev based module loading of fsl-mc drivers is supported. Signed-off-by: Stuart Yoder <stuart.yoder@nxp.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-06-14modsign: Make sign-file determine the format of the X.509 certDavid Howells1-8/+26
Make sign-file determine the format of the X.509 certificate by reading the first two bytes and seeing if the first byte is 0x30 and the second 0x81-0x84. If this is the case, assume it's DER encoded, otherwise assume it to be PEM encoded. Without this, it gets awkward to deal with the error messages from d2i_X509_bio() when we want to call BIO_reset() and then PEM_read_bio() in case the certificate was PEM encoded rather than X.509 encoded. Reported-by: Ben Hutchings <ben@decadent.org.uk> Signed-off-by: David Howells <dhowells@redhat.com> Tested-by: Ben Hutchings <ben@decadent.org.uk> cc: David Woodhouse <dwmw2@infradead.org> cc: Juerg Haefliger <juerg.haefliger@hpe.com> cc: Ben Hutchings <ben@decadent.org.uk>
2016-06-10Merge tag 'powerpc-4.7-3Michael Ellerman:' of ↵Linus Torvalds1-1/+1
git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux Pull powerpc fixes from - ptrace: Fix out of bounds array access warning from Khem Raj - pseries: Fix PCI config address for DDW from Gavin Shan - pseries: Fix IBM_ARCH_VEC_NRCORES_OFFSET since POWER8NVL was added from Michael Ellerman - of: fix autoloading due to broken modalias with no 'compatible' from Wolfram Sang - radix: Fix always false comparison against MMU_NO_CONTEXT from Aneesh Kumar K.V - hash: Compute the segment size correctly for ISA 3.0 from Aneesh Kumar K.V - nohash: Fix build break with 64K pages from Michael Ellerman * tag 'powerpc-4.7-3' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux: powerpc/nohash: Fix build break with 64K pages powerpc/mm/hash: Compute the segment size correctly for ISA 3.0 powerpc/mm/radix: Fix always false comparison against MMU_NO_CONTEXT of: fix autoloading due to broken modalias with no 'compatible' powerpc/pseries: Fix IBM_ARCH_VEC_NRCORES_OFFSET since POWER8NVL was added powerpc/pseries: Fix PCI config address for DDW powerpc/ptrace: Fix out of bounds array access warning
2016-06-10kernel-doc: unify all EXPORT_SYMBOL scanning to one placeJani Nikula1-13/+5
Scan all input files for EXPORT_SYMBOLs along with the explicitly specified export files before actually parsing anything. Signed-off-by: Jani Nikula <jani.nikula@intel.com>
2016-06-10kernel-doc: add support for specifying extra files for EXPORT_SYMBOLsJani Nikula1-2/+37
If the kernel-doc comments for functions are not in the same file as the EXPORT_SYMBOL statements, the -export and -internal output selections do not work as expected. This is typically the case when the kernel-doc comments are in header files next to the function declarations and the EXPORT_SYMBOL statements are next to the function definitions in the source files. Let the user specify additional source files in which to look for the EXPORT_SYMBOLs using the new -export-file FILE option, which may be given multiple times. The pathological example for this is include/net/mac80211.h, which has all the kernel-doc documentation for the exported functions defined in a plethora of source files net/mac80211/*.c. Signed-off-by: Jani Nikula <jani.nikula@intel.com>
2016-06-10kernel-doc: abstract filename mappingJani Nikula1-9/+18
Reduce duplication in follow-up work. No functional changes. Signed-off-by: Jani Nikula <jani.nikula@intel.com>
2016-06-10kernel-doc: add missing semi-colons in option parsingJani Nikula1-2/+2
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
2016-06-10kernel-doc: do not warn about duplicate default section namesJani Nikula1-2/+5
Since commit 32217761ee9db0215350dfe1ca4e66f312fb8c54 Author: Jani Nikula <jani.nikula@intel.com> Date: Sun May 29 09:40:44 2016 +0300 kernel-doc: concatenate contents of colliding sections we started getting (more) errors on duplicate section names, especially on the default section name "Description": include/net/mac80211.h:3174: warning: duplicate section name 'Description' This is usually caused by a slightly unorthodox placement of parameter descriptions, like in the above case, and kernel-doc resetting back to the default section more than once within a kernel-doc comment. Ignore warnings on the duplicate section name automatically assigned by kernel-doc, and only consider explicitly user assigned duplicate section names an issue. Signed-off-by: Jani Nikula <jani.nikula@intel.com>
2016-06-10kernel-doc: remove old debug cruft from dump_section()Jani Nikula1-3/+0
No functional changes. Signed-off-by: Jani Nikula <jani.nikula@intel.com>
2016-06-09docs: kernel-doc: Add "example" and "note" to the magic section typesJonathan Corbet1-1/+2
Lots of kerneldoc entries use "example:" or "note:" as section headers. Until such a time as we can make them use proper markup, make them work as intended. Signed-off-by: Jonathan Corbet <corbet@lwn.net>