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2015-09-01Merge branch 'core-rcu-for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull RCU updates from Ingo Molnar: "The main RCU changes in this cycle are: - the combination of tree geometry-initialization simplifications and OS-jitter-reduction changes to expedited grace periods. These two are stacked due to the large number of conflicts that would otherwise result. - privatize smp_mb__after_unlock_lock(). This commit moves the definition of smp_mb__after_unlock_lock() to kernel/rcu/tree.h, in recognition of the fact that RCU is the only thing using this, that nothing else is likely to use it, and that it is likely to go away completely. - documentation updates. - torture-test updates. - misc fixes" * 'core-rcu-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (60 commits) rcu,locking: Privatize smp_mb__after_unlock_lock() rcu: Silence lockdep false positive for expedited grace periods rcu: Don't disable CPU hotplug during OOM notifiers scripts: Make checkpatch.pl warn on expedited RCU grace periods rcu: Update MAINTAINERS entry rcu: Clarify CONFIG_RCU_EQS_DEBUG help text rcu: Fix backwards RCU_LOCKDEP_WARN() in synchronize_rcu_tasks() rcu: Rename rcu_lockdep_assert() to RCU_LOCKDEP_WARN() rcu: Make rcu_is_watching() really notrace cpu: Wait for RCU grace periods concurrently rcu: Create a synchronize_rcu_mult() rcu: Fix obsolete priority-boosting comment rcu: Use WRITE_ONCE in RCU_INIT_POINTER rcu: Hide RCU_NOCB_CPU behind RCU_EXPERT rcu: Add RCU-sched flavors of get-state and cond-sync rcu: Add fastpath bypassing funnel locking rcu: Rename RCU_GP_DONE_FQS to RCU_GP_DOING_FQS rcu: Pull out wait_event*() condition into helper function documentation: Describe new expedited stall warnings rcu: Add stall warnings to synchronize_sched_expedited() ...
2015-08-31Merge tag 'docs-for-linus' of git://git.lwn.net/linux-2.6Linus Torvalds
Pull documentation updates from Jonathan Corbet: "There's been a fair amount going on in the docs tree this time around, including: - Support for reproducible document builds, from Ben Hutchings and company. - The ability to automatically generate cross-reference links within a single DocBook book and embedded descriptions for large structures. From Danilo Cesar Lemes de Paula. - A new document on how to add a system call from David Drysdale. - Chameleon bus documentation from Johannes Thumshirn. ...plus the usual collection of improvements, typo fixes, and more" * tag 'docs-for-linus' of git://git.lwn.net/linux-2.6: (39 commits) Documentation, add kernel-parameters.txt entry for dis_ucode_ldr Documentation/x86: Rename IRQSTACKSIZE to IRQ_STACK_SIZE Documentation/Intel-IOMMU.txt: Modify definition of DRHD docs: update HOWTO for 3.x -> 4.x versioning kernel-doc: ignore unneeded attribute information scripts/kernel-doc: Adding cross-reference links to html documentation. DocBook: Fix non-determinstic installation of duplicate man pages Documentation: minor typo fix in mailbox.txt Documentation: describe how to add a system call doc: Add more workqueue functions to the documentation ARM: keystone: add documentation for SoCs and EVMs scripts/kernel-doc Allow struct arguments documentation in struct body SubmittingPatches: remove stray quote character Revert "DocBook: Avoid building man pages repeatedly and inconsistently" Documentation: Minor changes to men-chameleon-bus.txt Doc: fix trivial typo in SubmittingPatches MAINTAINERS: Direct Documentation/DocBook/media properly Documentation: installed man pages don't need to be executable fix Evolution submenu name in email-clients.txt Documentation: Add MCB documentation ...
2015-08-31Merge tag 'char-misc-4.3-rc1' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc Pull char/misc driver patches from Greg KH: "Here's the "big" char/misc driver update for 4.3-rc1. Not much really interesting here, just a number of little changes all over the place, and some nice consolidation of the nvmem drivers to a common framework. As usual, the mei drivers stand out as the largest "churn" to handle new devices and features in their hardware. All have been in linux-next for a while with no issues" * tag 'char-misc-4.3-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc: (136 commits) auxdisplay: ks0108: initialize local parport variable extcon: palmas: Fix build break due to devm_gpiod_get_optional API change extcon: palmas: Support GPIO based USB ID detection extcon: Fix signedness bugs about break error handling extcon: Drop owner assignment from i2c_driver extcon: arizona: Simplify pdata symantics for micd_dbtime extcon: arizona: Declare 3-pole jack if we detect open circuit on mic extcon: Add exception handling to prevent the NULL pointer access extcon: arizona: Ensure variables are set for headphone detection extcon: arizona: Use gpiod inteface to handle micd_pol_gpio gpio extcon: arizona: Add basic microphone detection DT/ACPI bindings extcon: arizona: Update to use the new device properties API extcon: palmas: Remove the mutually_exclusive array extcon: Remove optional print_state() function pointer of struct extcon_dev extcon: Remove duplicate header file in extcon.h extcon: max77843: Clear IRQ bits state before request IRQ toshiba laptop: replace ioremap_cache with ioremap misc: eeprom: max6875: clean up max6875_read() misc: eeprom: clean up eeprom_read() misc: eeprom: 93xx46: clean up eeprom_93xx46_bin_read/write ...
2015-08-23kernel-doc: ignore unneeded attribute informationJonathan Corbet
The kernel-doc script gets confused by __attribute__(()) strings in structures, so just clean the out. Also ignore the CRYPTO_MINALIGN_ATTR macro used in the crypto subsystem. Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2015-08-17scripts/kernel-doc: Adding cross-reference links to html documentation.Danilo Cesar Lemes de Paula
Functions, Structs and Parameters definitions on kernel documentation are pure cosmetic, it only highlights the element. To ease the navigation in the documentation we should use <links> inside those tags so readers can easily jump between methods directly. This was discussed in 2014[1] and is implemented by getting a list of <refentries> from the DocBook XML to generate a database. Then it looks for <function>,<structnames> and <paramdef> tags that matches the ones in the database. As it only links existent references, no broken links are added. [1] - lists.freedesktop.org/archives/dri-devel/2014-August/065404.html Signed-off-by: Danilo Cesar Lemes de Paula <danilo.cesar@collabora.co.uk> Cc: Randy Dunlap <rdunlap@infradead.org> Cc: Daniel Vetter <daniel.vetter@ffwll.ch> Cc: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Cc: Herbert Xu <herbert@gondor.apana.org.au> Cc: Stephan Mueller <smueller@chronox.de> Cc: Michal Marek <mmarek@suse.cz> Cc: intel-gfx <intel-gfx@lists.freedesktop.org> Cc: dri-devel <dri-devel@lists.freedesktop.org> Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2015-08-12Merge branch 'for-mingo' of ↵Ingo Molnar
git://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu into core/rcu Pull RCU changes from Paul E. McKenney: - The combination of tree geometry-initialization simplifications and OS-jitter-reduction changes to expedited grace periods. These two are stacked due to the large number of conflicts that would otherwise result. [ With one addition, a temporary commit to silence a lockdep false positive. Additional changes to the expedited grace-period primitives (queued for 4.4) remove the cause of this false positive, and therefore include a revert of this temporary commit. ] - Documentation updates. - Torture-test updates. - Miscellaneous fixes. Signed-off-by: Ingo Molnar <mingo@kernel.org>
2015-08-11localmodconfig: Use Kbuild files tooRichard Weinberger
In kbuild it is allowed to define objects in files named "Makefile" and "Kbuild". Currently localmodconfig reads objects only from "Makefile"s and misses modules like nouveau. Link: http://lkml.kernel.org/r/1437948415-16290-1-git-send-email-richard@nod.at Cc: stable@vger.kernel.org Reported-and-tested-by: Leonidas Spyropoulos <artafinde@gmail.com> Signed-off-by: Richard Weinberger <richard@nod.at> Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
2015-08-06scripts/kernel-doc Allow struct arguments documentation in struct bodyDanilo Cesar Lemes de Paula
Describing arguments at top of a struct definition works fine for small/medium size structs, but it definitely doesn't work well for struct with a huge list of elements. Keeping the arguments list inside the struct body makes it easier to maintain the documentation. ie: /** * struct my_struct - short description * @a: first member * @b: second member * * Longer description */ struct my_struct { int a; int b; /** * @c: This is longer description of C * * You can use paragraphs to describe arguments * using this method. */ int c; }; This patch allows the use of this kind of syntax. Only one argument per comment and user can use how many paragraphs he needs. It should start with /**, which is already being used by kernel-doc. If those comment doesn't follow those rules, it will be ignored. Signed-off-by: Danilo Cesar Lemes de Paula <danilo.cesar@collabora.co.uk> Cc: Randy Dunlap <rdunlap@infradead.org> Cc: Daniel Vetter <daniel.vetter@ffwll.ch> Cc: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Cc: Jonathan Corbet <corbet@lwn.net> Cc: Herbert Xu <herbert@gondor.apana.org.au> Cc: Stephan Mueller <smueller@chronox.de> Cc: Michal Marek <mmarek@suse.cz> Cc: linux-kernel@vger.kernel.org Cc: linux-doc@vger.kernel.org Cc: intel-gfx <intel-gfx@lists.freedesktop.org> Cc: dri-devel <dri-devel@lists.freedesktop.org> Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2015-08-04scripts/checkkconfigsymbols.py: support default statementsValentin Rothberg
Until now, checkkonfigsymbols.py did not check default statements for references on missing Kconfig symbols (i.e., undefined Kconfig options). Hence, add support to parse and check the Kconfig default statement. Signed-off-by: Valentin Rothberg <valentinrothberg@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-08-04checkkconfigsymbols.py: colored outputValentin Rothberg
Color output to make it more readable. Symbols will be printed yellow, relevant commits (see --find) red. Signed-off-by: Valentin Rothberg <valentinrothberg@gmail.com> Acked-by: Stefan Hengelein <stefan.hengelein@fau.de> Acked-by: Andreas Ruprecht <andreas.ruprecht@fau.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-08-04checkkconfigsymbols.py: find relevant commitsValentin Rothberg
Add option -f/--find to find relevant commits when using the --diff option. --find is useful in case a user wants to check commits that potentially cause a Kconfig symbol to be missing. This is done via 'git log -G $SYMBOL' (i.e., to get a list of commits that change $SYMBOL). The relevant commits are printed below the "SYMBOL\tFILES" line, followed by an empty line to increase readability. Signed-off-by: Valentin Rothberg <valentinrothberg@gmail.com> Acked-by: Stefan Hengelein <stefan.hengelein@fau.de> Acked-by: Andreas Ruprecht <andreas.ruprecht@fau.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-07-22scripts: Make checkpatch.pl warn on expedited RCU grace periodsPaul E. McKenney
The synchronize_rcu_expedited() and synchronize_sched_expedited() expedited-grace-period primitives induce OS jitter, which can degrade real-time response. This commit therefore adds a checkpatch.pl warning on any patch adding them. Note that this patch does not warn on synchronize_srcu_expedited() because it does not induce OS jitter, courtesy of its otherwise much-maligned read-side memory barriers. Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com> Cc: Andy Whitcroft <apw@canonical.com> Cc: Joe Perches <joe@perches.com>
2015-07-17checkpatch: fix long line messages about patch contextJoe Perches
Changes in ("checkpatch: categorize some long line length checks") now erroneously reports long line defects in patch context. Fix it. Signed-off-by: Joe Perches <joe@perches.com> Reported-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2015-07-10scripts/kernel-doc: Use $KBUILD_BUILD_TIMESTAMP as man page dateBen Hutchings
Together with the preceding changes, this allows man pages to be built reproducibly. Signed-off-by: Ben Hutchings <ben@decadent.org.uk> Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2015-07-10scripts/kernel-doc: parse kernel-doc deterministicallyJérémy Bobbio
Regular expressions for highlights in kernel-doc are stored in a Perl hash. These hashes are ordered differently for each Perl run. This will prevent kernel-doc to behave deterministically when parsing “@foo()” as in some runs it will be interpreted as a parameter and in the others it will be interpreted as a function. We now sort the %highlights hash to get the same behavior on every run. Signed-off-by: Jérémy Bobbio <lunar@debian.org> Signed-off-by: Ben Hutchings <ben@decadent.org.uk> Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2015-07-09Merge tag 'pm+acpi-4.2-rc2' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm Pull power management and ACPI updates from Rafael Wysocki: "These are fixes on top of the previous PM+ACPI pull requests (including one fix for a 4.1 regression) and two commits adding _CLS-based device enumeration support to the ACPI core and the ATA subsystem that waited for the latest ACPICA changes to be merged. Specifics: - Fix for an ACPI resources management regression introduced during the 4.1 cycle (that unfortunately went into -stable) effectively reverting the bad commit along with the recent fixups on top of it and using an alternative approach to address the underlying issue (Rafael J Wysocki). - Fix for a memory leak and an incorrect return value in an error code path in the ACPI LPSS (Low-Power Subsystem) driver (Rafael J Wysocki). - Fix for a leftover dangling pointer in an error code path in the new wakeup IRQ support code (Rafael J Wysocki). - Fix to prevent infinite loops (due to errors in other places) from happening in the core generic PM domains support code (Geert Uytterhoeven). - Hibernation documentation update/clarification (Uwe Geuder). - Support for _CLS-based device enumeration in the ACPI core and in the ATA subsystem (Suravee Suthikulpanit)" * tag 'pm+acpi-4.2-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: PM / wakeirq: Avoid setting power.wakeirq too hastily ata: ahci_platform: Add ACPI _CLS matching ACPI / scan: Add support for ACPI _CLS device matching PM / hibernate: clarify resume documentation PM / Domains: Avoid infinite loops in attach/detach code ACPI / LPSS: Fix up acpi_lpss_create_device() ACPI / PNP: Reserve ACPI resources at the fs_initcall_sync stage
2015-07-08modpost: work correctly with tile coldtext sectionsChris Metcalf
The tilegx and tilepro compilers use .coldtext for their unlikely executed text section name, so an __attribute__((cold)) function will (when compiled with higher optimization levels) land in the .coldtext section. Modify modpost to add .coldtext to the set of OTHER_TEXT_SECTIONS so we don't get warnings about referencing such a section in an __ex_table block, and then also modify arch/tile/lib/memcpy_user_64.c so that it uses plain ".coldtext" instead of ".coldtext.memcpy". The latter naming is a relic of an earlier use of -ffunction-sections, which we no longer use by default. Signed-off-by: Chris Metcalf <cmetcalf@ezchip.com> Acked-by: Rusty Russell <rusty@rustcorp.com.au>
2015-07-06ACPI / scan: Add support for ACPI _CLS device matchingSuthikulpanit, Suravee
Device drivers typically use ACPI _HIDs/_CIDs listed in struct device_driver acpi_match_table to match devices. However, for generic drivers, we do not want to list _HID for all supported devices. Also, certain classes of devices do not have _CID (e.g. SATA, USB). Instead, we can leverage ACPI _CLS, which specifies PCI-defined class code (i.e. base-class, subclass and programming interface). This patch adds support for matching ACPI devices using the _CLS method. To support loadable module, current design uses _HID or _CID to match device's modalias. With the new way of matching with _CLS this would requires modification to the current ACPI modalias key to include _CLS. This patch appends PCI-defined class-code to the existing ACPI modalias as following. acpi:<HID>:<CID1>:<CID2>:..:<CIDn>:<bbsspp>: E.g: # cat /sys/devices/platform/AMDI0600:00/modalias acpi:AMDI0600:010601: where bb is th base-class code, ss is te sub-class code, and pp is the programming interface code Since there would not be _HID/_CID in the ACPI matching table of the driver, this patch adds a field to acpi_device_id to specify the matching _CLS. static const struct acpi_device_id ahci_acpi_match[] = { { ACPI_DEVICE_CLASS(PCI_CLASS_STORAGE_SATA_AHCI, 0xffffff) }, {}, }; In this case, the corresponded entry in modules.alias file would be: alias acpi*:010601:* ahci_platform Acked-by: Mika Westerberg <mika.westerberg@linux.intel.com> Reviewed-by: Hanjun Guo <hanjun.guo@linaro.org> Signed-off-by: Suravee Suthikulpanit <Suravee.Suthikulpanit@amd.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2015-07-02Merge branch 'kbuild' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild Pull kbuild updates from Michal Marek: "Just a few kbuild core commits this time: - kallsyms fix for CONFIG_XIP_KERNEL - bashisms in scripts/link-vmlinux.sh fixed - workaround to make DEBUG_INFO_REDUCED more useful yet still space efficient - clang is not wrongly detected when cross-compiling" * 'kbuild' of git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild: kbuild: include core debug info when DEBUG_INFO_REDUCED scripts: link-vmlinux: Don't pass page offset to kallsyms if XIP Kernel scripts: fix link-vmlinux.sh bash-ism Makefile: Fix detection of clang when cross-compiling
2015-07-02Merge branch 'kconfig' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild Pull kconfig updates from Michal Marek: - kconfig conditions can use usual less/greater than comparisons - kconfig warns about stray characters in Kconfig files - bogus expression simplification removed - some minor fixes * 'kconfig' of git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild: kconfig: re-generate *.c_shipped files after previous change kconfig: allow use of relations other than (in)equality kconfig: don't silently ignore unhandled characters kconfig: Wrap long "make help" text lines scripts/kconfig/Makefile: Cosmetic fixes scripts/kconfig/Makefile: Fix spelling of Qt Kconfig: Remove bad inference rules expr_eliminate_dups2()
2015-07-02Merge tag 'cpuinit-v4.1-rc8' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/paulg/linux Pull __cpuinit removal from Paul Gortmaker: "Remove __cpuinit macros and users. We removed the __cpuinit stuff in 3.11-rc1 with commit 22f0a2736774 ("init.h: remove __cpuinit sections from the kernel") but we left some no-op stubs as a courtesy to unmerged code. Here we get rid of the stubs as well, since (as can be seen in these changes) they are enabling use cases to sneak back in, primarily from older BSP code that has been living out of tree for some time prior to getting mainlined. So we get rid of these "new" users 1st and then get rid of the stubs. Obviously, getting rid of the stubs can't happen until all the users are gone, so I had to keep this together as a series, even though some of these commits since got picked up into maintainers trees as well. The nature of this change is such that it should have zero impact on the generated runtime. This is one of several independent cleanup branches aimed at enabling better organization in the init.h and module.h code. They have been getting coverage in the linux-next tree for the last month, in addition to my local testing, which also covers approximately a half dozen or more architectures" * tag 'cpuinit-v4.1-rc8' of git://git.kernel.org/pub/scm/linux/kernel/git/paulg/linux: init: delete the __cpuinit related stubs kernel/cpu.c: remove new instance of __cpuinit that crept back in sched/core: remove __cpuinit section tag that crept back in. mips/mm/tlbex: remove new instance of __cpuinit that crept back in mips/c-r4k: remove legacy __cpuinit section that crept in mips/bcm77xx: remove legacy __cpuinit sections that crept in mips/ath25: remove legacy __cpuinit section that crept in arm/mach-hisi: remove legacy __CPUINIT section that crept in arm/mach-rockchip: remove legacy __cpuinit section that crept in arm/mach-mvebu: remove legacy __cpuinit sections that crept in arm/mach-keystone: remove legacy __cpuinit sections that crept in
2015-07-02Merge tag 'devicetree-for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/glikely/linux Pull devicetree updates from Grant Likely: "A whole lot of bug fixes. Nothing stands out here except the ability to enable CONFIG_OF on every architecture, and an import of a newer version of dtc" * tag 'devicetree-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/glikely/linux: (22 commits) of/irq: Rename "intc_desc" to "of_intc_desc" to fix OF on sh of/irq: Fix pSeries boot failure Documentation: DT: Fix a typo in the filename "lantiq,<chip>-pinumx.txt" of: define of_find_node_by_phandle for !CONFIG_OF of/address: use atomic allocation in pci_register_io_range() of: Add vendor prefix for Zodiac Inflight Innovations dt/fdt: add empty versions of early_init_dt_*_memory_arch of: clean-up unnecessary libfdt include paths of: make unittest select OF_EARLY_FLATTREE instead of depend on it of: make CONFIG_OF user selectable MIPS: prepare for user enabling of CONFIG_OF of/fdt: fix argument name and add comments of unflatten_dt_node() of: return NUMA_NO_NODE from fallback of_node_to_nid() tps6507x.txt: Remove executable permission of/overlay: Grammar s/an negative/a negative/ of/fdt: Make fdt blob input parameters of unflatten functions const of: add helper function to retrive match data of: Grammar s/property exist/property exists/ of: Move OF flags to be visible even when !CONFIG_OF scripts/dtc: Update to upstream version 9d3649bd3be245c9 ...
2015-07-02Merge branch 'akpm' (patches from Andrew)Linus Torvalds
Merge third patchbomb from Andrew Morton: - the rest of MM - scripts/gdb updates - ipc/ updates - lib/ updates - MAINTAINERS updates - various other misc things * emailed patches from Andrew Morton <akpm@linux-foundation.org>: (67 commits) genalloc: rename of_get_named_gen_pool() to of_gen_pool_get() genalloc: rename dev_get_gen_pool() to gen_pool_get() x86: opt into HAVE_COPY_THREAD_TLS, for both 32-bit and 64-bit MAINTAINERS: add zpool MAINTAINERS: BCACHE: Kent Overstreet has changed email address MAINTAINERS: move Jens Osterkamp to CREDITS MAINTAINERS: remove unused nbd.h pattern MAINTAINERS: update brcm gpio filename pattern MAINTAINERS: update brcm dts pattern MAINTAINERS: update sound soc intel patterns MAINTAINERS: remove website for paride MAINTAINERS: update Emulex ocrdma email addresses bcache: use kvfree() in various places libcxgbi: use kvfree() in cxgbi_free_big_mem() target: use kvfree() in session alloc and free IB/ehca: use kvfree() in ipz_queue_{cd}tor() drm/nouveau/gem: use kvfree() in u_free() drm: use kvfree() in drm_free_large() cxgb4: use kvfree() in t4_free_mem() cxgb3: use kvfree() in cxgb_free_mem() ...
2015-07-01Merge tag 'for-linus-4.2-rc0-tag' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip Pull xen updates from David Vrabel: "Xen features and cleanups for 4.2-rc0: - add "make xenconfig" to assist in generating configs for Xen guests - preparatory cleanups necessary for supporting 64 KiB pages in ARM guests - automatically use hvc0 as the default console in ARM guests" * tag 'for-linus-4.2-rc0-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip: block/xen-blkback: s/nr_pages/nr_segs/ block/xen-blkfront: Remove invalid comment block/xen-blkfront: Remove unused macro MAXIMUM_OUTSTANDING_BLOCK_REQS arm/xen: Drop duplicate define mfn_to_virt xen/grant-table: Remove unused macro SPP xen/xenbus: client: Fix call of virt_to_mfn in xenbus_grant_ring xen: Include xen/page.h rather than asm/xen/page.h kconfig: add xenconfig defconfig helper kconfig: clarify kvmconfig is for kvm xen/pcifront: Remove usage of struct timeval xen/tmem: use BUILD_BUG_ON() in favor of BUG_ON() hvc_xen: avoid uninitialized variable warning xenbus: avoid uninitialized variable warning xen/arm: allow console=hvc0 to be omitted for guests arm,arm64/xen: move Xen initialization earlier arm/xen: Correctly check if the event channel interrupt is present
2015-07-01Merge tag 'arc-4.2-rc1' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/vgupta/arc Pull ARC architecture updates from Vineet Gupta: - support for HS38 cores based on ARCv2 ISA ARCv2 is the next generation ISA from Synopsys and basis for the HS3{4,6,8} families of processors which retain the traditional ARC mantra of low power and configurability and are now more performant and feature rich. HS38x is a 10 stage pipeline core which supports MMU (with huge pages) and SMP (upto 4 cores) among other features. + www.synopsys.com/dw/ipdir.php?ds=arc-hs38-processor + http://news.synopsys.com/2014-10-14-New-DesignWare-ARC-HS38-Processor-Doubles-Performance-for-Embedded-Linux-Applications + http://www.embedded.com/electronics-news/4435975/Synopsys-ARC-HS38-core-gives-2X-boost-to-Linux-based-apps - support for ARC SDP (Software Development platform): Main Board + CPU Cards = AXS101: CPU Card with ARC700 in silicon @ 700 MHz = AXS103: CPU Card with HS38x in FPGA - refactoring of ARCompact port to accomodate new ARCv2 ISA - misc updates/cleanups * tag 'arc-4.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/vgupta/arc: (72 commits) ARC: Fix build failures for ARCompact in linux-next after ARCv2 support ARCv2: Allow older gcc to cope with new regime of ARCv2/ARCompact support ARCv2: [vdk] dts files and defconfig for HS38 VDK ARCv2: [axs103] Support ARC SDP FPGA platform for HS38x cores ARC: [axs101] Prepare for AXS103 ARCv2: [nsim*hs*] Support simulation platforms for HS38x cores ARCv2: All bits in place, allow ARCv2 builds ARCv2: SLC: Handle explcit flush for DMA ops (w/o IO-coherency) ARCv2: STAR 9000837815 workaround hardware exclusive transactions livelock ARC: Reduce bitops lines of code using macros ARCv2: barriers arch: conditionally define smp_{mb,rmb,wmb} ARC: add smp barriers around atomics per Documentation/atomic_ops.txt ARC: add compiler barrier to LLSC based cmpxchg ARCv2: SMP: intc: IDU 2nd level intc for dynamic IRQ distribution ARCv2: SMP: clocksource: Enable Global Real Time counter ARCv2: SMP: ARConnect debug/robustness ARCv2: SMP: Support ARConnect (MCIP) for Inter-Core-Interrupts et al ARC: make plat_smp_ops weak to allow over-rides ARCv2: clocksource: Introduce 64bit local RTC counter ...
2015-07-01scripts/gdb: remove useless global instructionThiébaud Weksteen
Signed-off-by: Thiébaud Weksteen <thiebaud@weksteen.fr> Signed-off-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>
2015-07-01scripts/gdb: add ps commandThiébaud Weksteen
Signed-off-by: Thiébaud Weksteen <thiebaud@weksteen.fr> Signed-off-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>
2015-07-01scripts/gdb: fix PEP8 complianceThiébaud Weksteen
Signed-off-by: Thiébaud Weksteen <thiebaud@weksteen.fr> Signed-off-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>
2015-07-01scripts/gdb: fix typo in exception nameThiébaud Weksteen
Signed-off-by: Thiébaud Weksteen <thiebaud@weksteen.fr> Signed-off-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>
2015-07-01scripts/gdb: enable completion for lx-list-check parameterJan Kiszka
Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com> Cc: Thiébaud Weksteen <thiebaud@weksteen.fr> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2015-07-01scripts/gdb: also allow list_head pointer as lx-list-check paramterJan Kiszka
This makes the usage more flexible. Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com> Cc: Thiébaud Weksteen <thiebaud@weksteen.fr> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2015-07-01scripts/gdb: add command to check list consistencyThiébaud Weksteen
Add a gdb script to verify the consistency of lists. Signed-off-by: Thiébaud Weksteen <thiebaud@weksteen.fr> Signed-off-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>
2015-06-26Merge tag 'usb-4.2-rc1' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb Pull USB updates from Greg KH: "Here's the big USB patchset for 4.2-rc1. As is normal these days, the majority of changes are in the gadget drivers, with a bunch of other small driver changes. All of these have been in linux-next with no reported issues" * tag 'usb-4.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb: (175 commits) usb: dwc3: Use ASCII space in Kconfig usb: chipidea: add work-around for Marvell HSIC PHY startup usb: chipidea: allow multiple instances to use default ci_default_pdata dt-bindings: Consolidate ChipIdea USB ci13xxx bindings phy: add Marvell HSIC 28nm PHY phy: Add Marvell USB 2.0 OTG 28nm PHY dt-bindings: Add Marvell PXA1928 USB and HSIC PHY bindings USB: ssb: use devm_kzalloc USB: ssb: fix error handling in ssb_hcd_create_pdev() usb: isp1760: check for null return from kzalloc cdc-acm: Add support of ATOL FPrint fiscal printers usb: chipidea: usbmisc_imx: Remove unneeded semicolon USB: usbtmc: add device quirk for Rigol DS6104 USB: serial: mos7840: Use setup_timer phy: twl4030-usb: add ABI documentation phy: twl4030-usb: remove incorrect pm_runtime_get_sync() in probe function. phy: twl4030-usb: remove pointless 'suspended' test in 'suspend' callback. phy: twl4030-usb: make runtime pm more reliable. drivers:usb:fsl: Fix compilation error for fsl ehci drv usb: renesas_usbhs: Don't disable the pipe if Control write status stage ...
2015-06-26Merge tag 'char-misc-4.2-rc1' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc Pull char/misc driver updates from Greg KH: "Here's the big char/misc driver pull request for 4.2-rc1. Lots of mei, extcon, coresight, uio, mic, and other driver updates in here. Full details in the shortlog. All of these have been in linux-next for some time with no reported problems" * tag 'char-misc-4.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc: (176 commits) mei: me: wait for power gating exit confirmation mei: reset flow control on the last client disconnection MAINTAINERS: mei: add mei_cl_bus.h to maintained file list misc: sram: sort and clean up included headers misc: sram: move reserved block logic out of probe function misc: sram: add private struct device and virt_base members misc: sram: report correct SRAM pool size misc: sram: bump error message level on unclean driver unbinding misc: sram: fix device node reference leak on error misc: sram: fix enabled clock leak on error path misc: mic: Fix reported static checker warning misc: mic: Fix randconfig build error by including errno.h uio: pruss: Drop depends on ARCH_DAVINCI_DA850 from config uio: pruss: Add CONFIG_HAS_IOMEM dependence uio: pruss: Include <linux/sizes.h> extcon: Redefine the unique id of supported external connectors without 'enum extcon' type char:xilinx_hwicap:buffer_icap - change 1/0 to true/false for bool type variable in function buffer_icap_set_configuration(). Drivers: hv: vmbus: Allocate ring buffer memory in NUMA aware fashion parport: check exclusive access before register w1: use correct lock on error in w1_seq_show() ...
2015-06-26Merge branch 'akpm' (patches from Andrew)Linus Torvalds
Merge second patchbomb from Andrew Morton: - most of the rest of MM - lots of misc things - procfs updates - printk feature work - updates to get_maintainer, MAINTAINERS, checkpatch - lib/ updates * emailed patches from Andrew Morton <akpm@linux-foundation.org>: (96 commits) exit,stats: /* obey this comment */ coredump: add __printf attribute to cn_*printf functions coredump: use from_kuid/kgid when formatting corename fs/reiserfs: remove unneeded cast NILFS2: support NFSv2 export fs/befs/btree.c: remove unneeded initializations fs/minix: remove unneeded cast init/do_mounts.c: add create_dev() failure log kasan: remove duplicate definition of the macro KASAN_FREE_PAGE fs/efs: femove unneeded cast checkpatch: emit "NOTE: <types>" message only once after multiple files checkpatch: emit an error when there's a diff in a changelog checkpatch: validate MODULE_LICENSE content checkpatch: add multi-line handling for PREFER_ETHER_ADDR_COPY checkpatch: suggest using eth_zero_addr() and eth_broadcast_addr() checkpatch: fix processing of MEMSET issues checkpatch: suggest using ether_addr_equal*() checkpatch: avoid NOT_UNIFIED_DIFF errors on cover-letter.patch files checkpatch: remove local from codespell path checkpatch: add --showfile to allow input via pipe to show filenames ...
2015-06-26checkpatch: emit "NOTE: <types>" message only once after multiple filesJoe Perches
Make this message similar to the "false positives" message and emit it only once when scanning multiple files instead of after each file scanned. Signed-off-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>
2015-06-26checkpatch: emit an error when there's a diff in a changelogJoe Perches
People often put diff snippets in changelogs. This causes problems when one tries to apply a file containing both the changelog and the diff because patch(1) tries to apply the diff which it found in the changelog. Warn once when what seems to be a diff snippet in the changelog exists. Signed-off-by: Joe Perches <joe@perches.com> Suggested-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2015-06-26checkpatch: validate MODULE_LICENSE contentBjorn Andersson
There is a well defined list of expected values for MODULE_LICENSE so warn the user upon usage of unknown values. Signed-off-by: Bjorn Andersson <bjorn.andersson@sonymobile.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>
2015-06-26checkpatch: add multi-line handling for PREFER_ETHER_ADDR_COPYMateusz Kulikowski
Handle multi-line memcpy() properly. Signed-off-by: Mateusz Kulikowski <mateusz.kulikowski@gmail.com> Acked-by: Joe Perches <joe@perches.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>
2015-06-26checkpatch: suggest using eth_zero_addr() and eth_broadcast_addr()Mateusz Kulikowski
Suggest using eth_zero_addr() or eth_broadcast_addr() instead of memset(). Signed-off-by: Mateusz Kulikowski <mateusz.kulikowski@gmail.com> Acked-by: Joe Perches <joe@perches.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>
2015-06-26checkpatch: fix processing of MEMSET issuesMateusz Kulikowski
Remove 's' modifier to avoid reporting the same warning several times. Signed-off-by: Mateusz Kulikowski <mateusz.kulikowski@gmail.com> Acked-by: Joe Perches <joe@perches.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>
2015-06-26checkpatch: suggest using ether_addr_equal*()Mateusz Kulikowski
Check if memcmp() is used to compare ethernet addresses and suggest using ether_addr_equal() or ether_addr_equal_unaligned() Signed-off-by: Mateusz Kulikowski <mateusz.kulikowski@gmail.com> Acked-by: Joe Perches <joe@perches.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>
2015-06-26checkpatch: avoid NOT_UNIFIED_DIFF errors on cover-letter.patch filesJoe Perches
Make an exception for the "Does not appear to be a unified-diff" error when scanning what appears to be git generated cover letters. Signed-off-by: Joe Perches <joe@perches.com> Suggested-by: Rasmus Villemoes <linux@rasmusvillemoes.dk> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2015-06-26checkpatch: remove local from codespell pathMaxim Uvarov
local is typically used for manually installed apps. For apps installed from distro the right path is /usr/share. Signed-off-by: Maxim Uvarov <maxim.uvarov@linaro.org> 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>
2015-06-26checkpatch: add --showfile to allow input via pipe to show filenamesJoe Perches
Using "git diff | ./scripts/checkpatch -" does not have an easy mechanism to see the files and lines actually modified. Add --showfile to see the file and line specified in the diff. When --showfile is used without --terse, the second line of each message output is redundant, so it is removed. Signed-off-by: Joe Perches <joe@perches.com> Cc: Petr Mladek <pmladek@suse.cz> Cc: Andy Whitcroft <apw@canonical.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2015-06-26checkpatch: colorize output to terminalJoe Perches
Add optional colors to make seeing message types a bit easier. Add --color command line switch, default:on Error is RED, warning is YELLOW, check is GREEN. The message type, if shown, is BLUE. Signed-off-by: Joe Perches <joe@perches.com> Tested-by: Petr Mladek <pmladek@suse.cz> Cc: Andy Whitcroft <apw@canonical.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2015-06-26checkpatch: improve output with multiple command-line filesJoe Perches
If there are multiple patches/files on the command line, use a prefix before the patch/file message output like: -------------- patch/filename -------------- to make the identifying which messages go with which file/patch a bit easier to parse. Move the perl version and false positive messages after all the files have been scanned so that they are emitted only once. Standardize the NOTE: <...> form to always emit a blank line before the NOTE and always use print << "EOM" style. Signed-off-by: Joe Perches <joe@perches.com> Suggested-by: Petr Mladek <pmladek@suse.cz> Tested-by: Petr Mladek <pmladek@suse.cz> Cc: Andy Whitcroft <apw@canonical.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2015-06-26checkpatch: categorize some long line length checksJoe Perches
Many lines of code extend beyond the maximum line length. Some of these are possibly justified by use type. For instance: structure definitions where comments are added per member like: struct foo { type member; /* some long description */ And lines that don't fit the typical logging message style where a string constant is used like: SOME_MACRO(args, "Some long string"); Categorize these long line types so that checkpatch can use a command-line --ignore=<type> option to avoid emitting some long line warnings. One of the existing checkpatch exclusions allowed kernel-doc argument documentation to exceed 80 columns because old versions of kernel-doc required single line documentation. The requirement was removed in 2009 so remove that exclusion. Add documentation to make the test a bit clearer. Signed-off-by: Joe Perches <joe@perches.com> Cc: Julia Lawall <julia.lawall@lip6.fr> Cc: Michael Shuey <shuey@purdue.edu> Cc: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2015-06-26checkpatch: use $String consistentlyJoe Perches
String detection where a source line with a string constant is converted can either have an X or a space. Some of the string detection regexes do not allow the space character, but there is a handy $String variable that does. Convert the remaining uses of string detection regexes to use the $String variable to reduce possible false negatives. Signed-off-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>
2015-06-26checkpatch: make types found in a source file/patch localAlex Dowad
checkpatch uses various cues in its input patches and files to discover the names of user-defined types and modifiers. It then uses that information when processing expressions to discover potential style issues. Unfortunately, in rare cases, this means that checkpatch may give different results if you run it on several input files in one execution, or one by one! The reason is that it may identify a type (or something that looks like a type) in one file, and then carry this information over when processing a different file. For example, drivers/staging/media/bcm2048/radio-bcm2048.c contains this line (in a macro): size value; and drivers/staging/media/davinci_vpfe/vpfe_video.c has this line: while (size * *nbuffers > vpfe_dev->video_limit) If checkpatch processes these 2 files in a single command like: ./scripts/checkpatch.pl -f $file1 $file2 the (spurious) "size" type detected in the first file will cause it to flag the second file for improper use of the pointer dereference operator. To fix this, store types and modifiers found in a file in separate arrays from built-in ones, and reset the arrays of types and modifiers found in files at the beginning of each new source file. Signed-off-by: Alex Dowad <alexinbeijing@gmail.com> Signed-off-by: Joe Perches <joe@perches.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>