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* Merge tag 'kbuild-fixes-v4.13' of ↵Linus Torvalds2017-08-246-16/+15
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild Pull Kbuild fixes from Masahiro Yamada: - fix linker script regression caused by dead code elimination support - fix typos and outdated comments - specify kselftest-clean as a PHONY target - fix "make dtbs_install" when $(srctree) includes shell special characters like '~' - Move -fshort-wchar to the global option list because defining it partially emits warnings * tag 'kbuild-fixes-v4.13' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild: kbuild: update comments of Makefile.asm-generic kbuild: Do not use hyphen in exported variable name Makefile: add kselftest-clean to PHONY target list Kbuild: use -fshort-wchar globally fixdep: trivial: typo fix and correction kbuild: trivial cleanups on the comments kbuild: linker script do not match C names unless LD_DEAD_CODE_DATA_ELIMINATION is configured
| * kbuild: update comments of Makefile.asm-genericCao jin2017-08-241-2/+2
| | | | | | | | | | Signed-off-by: Cao jin <caoj.fnst@cn.fujitsu.com> Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
| * kbuild: Do not use hyphen in exported variable nameBen Hutchings2017-08-211-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This definition in Makefile.dtbinst: export dtbinst-root ?= $(obj) should define and export dtbinst-root when handling the root dts directory, and do nothing in the subdirectories. However some shells, including dash, will not pass through environment variables whose name includes a hyphen. Usually GNU make does not use a shell to recurse, but if e.g. $(srctree) contains '~' it will use a shell here. Rename the variable to dtbinst_root. References: https://bugs.debian.org/833561 Fixes: 323a028d39cdi ("dts, kbuild: Implement support for dtb vendor subdirs") Signed-off-by: Ben Hutchings <ben@decadent.org.uk> Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
| * fixdep: trivial: typo fix and correctionCao jin2017-08-091-3/+3
| | | | | | | | | | Signed-off-by: Cao jin <caoj.fnst@cn.fujitsu.com> Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
| * kbuild: trivial cleanups on the commentsCao jin2017-08-093-9/+8
| | | | | | | | | | | | | | This is a bunch of trivial fixes and cleanups. Signed-off-by: Cao jin <caoj.fnst@cn.fujitsu.com> Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
* | parse-maintainers: Move matching sections from MAINTAINERSJoe Perches2017-08-081-0/+12
| | | | | | | | | | | | | | | | | | | | | | | | | | Allow any number of command line arguments to match either the section header or the section contents and create new files. Create MAINTAINERS.new and SECTION.new. This allows scripting of the movement of various sections from MAINTAINERS. Signed-off-by: Joe Perches <joe@perches.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | parse-maintainers: Use perl hash references and specific filenamesJoe Perches2017-08-081-23/+34
| | | | | | | | | | | | | | | | | | | | | | | | Instead of reading STDIN and writing STDOUT, use specific filenames of MAINTAINERS and MAINTAINERS.new. Use hash references instead of global hash %hash so future modifications can read and write specific hashes to split up MAINTAINERS into multiple files using a script. Signed-off-by: Joe Perches <joe@perches.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | parse-maintainers: Add section pattern sortingJoe Perches2017-08-081-21/+49
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Section [A-Z]: patterns are not currently in any required sorting order. Add a specific sorting sequence to MAINTAINERS entries. Sort F: and X: patterns in alphabetic order. The preferred section ordering is: SECTION HEADER M: Maintainers R: Reviewers P: Named persons without email addresses L: Mailing list addresses S: Status of this section (Supported, Maintained, Orphan, etc...) W: Any relevant URLs T: Source code control type (git, quilt, etc) Q: Patchwork patch acceptance queue site B: Bug tracking URIs C: Chat URIs F: Files with wildcard patterns (alphabetic ordered) X: Excluded files with wildcard patterns (alphabetic ordered) N: Files with regex patterns K: Keyword regexes in source code for maintainership identification Miscellaneous perl neatening: - Rename %map to %hash, map has a different meaning in perl - Avoid using \& and local variables for function indirection - Use return for a little c like clarity - Use c-like function call style instead of &function Signed-off-by: Joe Perches <joe@perches.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | get_maintainer: Prepare for separate MAINTAINERS filesJoe Perches2017-08-081-25/+66
|/ | | | | | | | | | | | | | | | | | | Allow for MAINTAINERS to become a directory and if it is, read all the files in the directory for maintained sections. Optionally look for all files named MAINTAINERS in directories excluding the .git directory by using --find-maintainer-files. This optional feature adds ~.3 seconds of CPU on an Intel i5-6200 with an SSD. Miscellanea: - Create a read_maintainer_file subroutine from the existing code - Test only the existence of MAINTAINERS, not whether it's a file Signed-off-by: Joe Perches <joe@perches.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* Merge tag 'devicetree-fixes-for-4.13' of ↵Linus Torvalds2017-07-291-1/+1
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux Pull DeviceTree fixes from Rob Herring: "Two small DT fixes: - Fix error handling in of_irq_to_resource_table() due to of_irq_to_resource() error return changes. - Fix dtx_diff script due to dts include path changes" * tag 'devicetree-fixes-for-4.13' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux: of: irq: fix of_irq_to_resource() error check scripts/dtc: dtx_diff - update include dts paths to match build
| * scripts/dtc: dtx_diff - update include dts paths to match buildFrank Rowand2017-07-201-1/+1
| | | | | | | | | | | | | | | | | | | | | | Update the cpp include flags for compiling device tree dts files to match the changes made to the kernel build process in commit d5d332d3f7e8 ("devicetree: Move include prefixes from arch to separate directory"). Cc: <stable@vger.kernel.org> # 4.12 Signed-off-by: Frank Rowand <frank.rowand@sony.com> Signed-off-by: Rob Herring <robh@kernel.org>
* | Properly alphabetize MAINTAINERS fileLinus Torvalds2017-07-241-0/+77
|/ | | | | | | | | | | | | This adds a perl script to actually parse the MAINTAINERS file, clean up some whitespace in it, warn about errors in it, and then properly sort the end result. My perl-fu is atrocious, so the script has basically been created by randomly putting various characters in a pile, mixing them around, and then looking it the end result does anything interesting when used as a perl script. Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* Merge tag 'kbuild-v4.13-2' of ↵Linus Torvalds2017-07-131-25/+4
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild Pull more Kbuild updates from Masahiro Yamada: - Move generic-y of exported headers to uapi/asm/Kbuild for complete de-coupling of UAPI - Clean up scripts/Makefile.headersinst - Fix host programs for 32 bit machine with XFS file system * tag 'kbuild-v4.13-2' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild: (29 commits) kbuild: Enable Large File Support for hostprogs kbuild: remove wrapper files handling from Makefile.headersinst kbuild: split exported generic header creation into uapi-asm-generic kbuild: do not include old-kbuild-file from Makefile.headersinst xtensa: move generic-y of exported headers to uapi/asm/Kbuild unicore32: move generic-y of exported headers to uapi/asm/Kbuild tile: move generic-y of exported headers to uapi/asm/Kbuild sparc: move generic-y of exported headers to uapi/asm/Kbuild sh: move generic-y of exported headers to uapi/asm/Kbuild parisc: move generic-y of exported headers to uapi/asm/Kbuild openrisc: move generic-y of exported headers to uapi/asm/Kbuild nios2: move generic-y of exported headers to uapi/asm/Kbuild nios2: remove unneeded arch/nios2/include/(generated/)asm/signal.h microblaze: move generic-y of exported headers to uapi/asm/Kbuild metag: move generic-y of exported headers to uapi/asm/Kbuild m68k: move generic-y of exported headers to uapi/asm/Kbuild m32r: move generic-y of exported headers to uapi/asm/Kbuild ia64: remove redundant generic-y += kvm_para.h from asm/Kbuild hexagon: move generic-y of exported headers to uapi/asm/Kbuild h8300: move generic-y of exported headers to uapi/asm/Kbuild ...
| * kbuild: remove wrapper files handling from Makefile.headersinstMasahiro Yamada2017-07-111-10/+1
| | | | | | | | | | | | | | | | | | | | | | scripts/Makefike.headersinst creates asm-generic wrappers by itself because scripts/Makefile.asm-generic created some of exported wrappers outside uapi directories. Now this distortion has been fixed. scripts/Makefile.headersinst can simply copy wrappers created by scripts/Makefile.asm-generic. Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
| * kbuild: do not include old-kbuild-file from Makefile.headersinstMasahiro Yamada2017-07-111-5/+0
| | | | | | | | | | | | | | | | Now asm-generic wrappers to be exported are all listed in arch/*/include/uapi/asm/Kbuild. "make headers_install" no longer depends on any Kbuild files outside uapi directories. Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
| * kbuild: pass dst= to Makefile.headersinst from top MakefileMasahiro Yamada2017-07-091-6/+2
| | | | | | | | | | | | | | We can always pass dst= from the top Makefile. This will simplify the logic in Makefile.headersinst. Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
| * kbuild: remove useless $(gen) variable in Makefile.headersinstMasahiro Yamada2017-07-091-4/+1
| | | | | | | | | | | | | | We have no true case for the $(if $(gen), ...) conditional. Drop it to simplify the gendir calculation. Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
* | Merge branch 'akpm' (patches from Andrew)Linus Torvalds2017-07-134-6/+101
|\ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Merge yet more updates from Andrew Morton: - various misc things - kexec updates - sysctl core updates - scripts/gdb udpates - checkpoint-restart updates - ipc updates - kernel/watchdog updates - Kees's "rough equivalent to the glibc _FORTIFY_SOURCE=1 feature" - "stackprotector: ascii armor the stack canary" - more MM bits - checkpatch updates * emailed patches from Andrew Morton <akpm@linux-foundation.org>: (96 commits) writeback: rework wb_[dec|inc]_stat family of functions ARM: samsung: usb-ohci: move inline before return type video: fbdev: omap: move inline before return type video: fbdev: intelfb: move inline before return type USB: serial: safe_serial: move __inline__ before return type drivers: tty: serial: move inline before return type drivers: s390: move static and inline before return type x86/efi: move asmlinkage before return type sh: move inline before return type MIPS: SMP: move asmlinkage before return type m68k: coldfire: move inline before return type ia64: sn: pci: move inline before type ia64: move inline before return type FRV: tlbflush: move asmlinkage before return type CRIS: gpio: move inline before return type ARM: HP Jornada 7XX: move inline before return type ARM: KVM: move asmlinkage before type checkpatch: improve the STORAGE_CLASS test mm, migration: do not trigger OOM killer when migrating memory drm/i915: use __GFP_RETRY_MAYFAIL ...
| * | checkpatch: improve the STORAGE_CLASS testJoe Perches2017-07-131-2/+10
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Make sure static, extern, and asmlinkage appear before a specific type. e.g.: int asmlinkage foo(void) is better written asmlinkage int foo(void) Link: http://lkml.kernel.org/r/31704c96df2d5fd9df0b41165940a7a4feb16a63.1499284835.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>
| * | scripts/gdb: lx-dmesg: use explicit encoding=utf8 errors=replaceLeonard Crestez2017-07-131-3/+10
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Use errors=replace because it is never desirable for lx-dmesg to fail on string decoding errors, not even if the log buffer is corrupt and we show incorrect info. The kernel will sometimes print utf8, for example the copyright symbol from jffs2. In order to make this work specify 'utf8' everywhere because python2 otherwise defaults to 'ascii'. In theory the second errors='replace' is not be required because everything that can be decoded as utf8 should also be encodable back to utf8. But it's better to be extra safe here. It's worth noting that this is definitely not true for encoding='ascii', unknown characters are replaced with U+FFFD REPLACEMENT CHARACTER and they fail to encode back to ascii. Link: http://lkml.kernel.org/r/acee067f3345954ed41efb77b80eebdc038619c6.1498481469.git.leonard.crestez@nxp.com Signed-off-by: Leonard Crestez <leonard.crestez@nxp.com> Acked-by: Jan Kiszka <jan.kiszka@siemens.com> Cc: Jason Wessel <jason.wessel@windriver.com> Cc: Kieran Bingham <kieran@ksquared.org.uk> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
| * | scripts/gdb: lx-dmesg: cast log_buf to void* for addr fetchLeonard Crestez2017-07-131-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | In some cases it is possible for the str() conversion here to throw encoding errors because log_buf might not point to valid ascii. For example: (gdb) python print str(gdb.parse_and_eval("log_buf")) Traceback (most recent call last): File "<string>", line 1, in <module> UnicodeEncodeError: 'ascii' codec can't encode character u'\u0303' in position 24: ordinal not in range(128) Avoid this by explicitly casting to (void *) inside the gdb expression. Link: http://lkml.kernel.org/r/ba6f85dbb02ca980ebd0e2399b0649423399b565.1498481469.git.leonard.crestez@nxp.com Signed-off-by: Leonard Crestez <leonard.crestez@nxp.com> Reviewed-by: Jan Kiszka <jan.kiszka@siemens.com> Cc: Jason Wessel <jason.wessel@windriver.com> Cc: Kieran Bingham <kieran@ksquared.org.uk> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
| * | scripts/gdb: add lx-fdtdump commandPeter Griffin2017-07-132-0/+80
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | lx-fdtdump dumps the flattened device tree passed to the kernel from the bootloader to the filename specified as the command argument. If no argument is provided it defaults to fdtdump.dtb. This then allows further post processing on the machine running GDB. The fdt header is also also printed in the GDB console. For example: (gdb) lx-fdtdump fdt_magic: 0xD00DFEED fdt_totalsize: 0xC108 off_dt_struct: 0x38 off_dt_strings: 0x3804 off_mem_rsvmap: 0x28 version: 17 last_comp_version: 16 Dumped fdt to fdtdump.dtb >fdtdump fdtdump.dtb | less This command is useful as the bootloader can often re-write parts of the device tree, and this can sometimes cause the kernel to not boot. Link: http://lkml.kernel.org/r/1481280065-5336-2-git-send-email-kbingham@kernel.org Signed-off-by: Peter Griffin <peter.griffin@linaro.org> Signed-off-by: Kieran Bingham <kbingham@kernel.org> Cc: Jason Wessel <jason.wessel@windriver.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | | Merge tag 'modules-for-v4.13' of ↵Linus Torvalds2017-07-131-0/+1
|\ \ \ | |/ / |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/jeyu/linux Pull modules updates from Jessica Yu: "Summary of modules changes for the 4.13 merge window: - Minor code cleanups - Avoid accessing mod struct prior to checking module struct version, from Kees - Fix racy atomic inc/dec logic of kmod_concurrent_max in kmod, from Luis" * tag 'modules-for-v4.13' of git://git.kernel.org/pub/scm/linux/kernel/git/jeyu/linux: module: make the modinfo name const kmod: reduce atomic operations on kmod_concurrent and simplify module: use list_for_each_entry_rcu() on find_module_all() kernel/module.c: suppress warning about unused nowarn variable module: Add module name to modinfo module: Pass struct load_info into symbol checks
| * | module: Add module name to modinfoKees Cook2017-05-231-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Accessing the mod structure (e.g. for mod->name) prior to having completed check_modstruct_version() can result in writing garbage to the error logs if the layout of the mod structure loaded from disk doesn't match the running kernel's mod structure layout. This kind of mismatch will become much more likely if a kernel is built with different randomization seed for the struct layout randomization plugin. Instead, add and use a new modinfo string for logging the module name. Signed-off-by: Kees Cook <keescook@chromium.org> Signed-off-by: Jessica Yu <jeyu@redhat.com>
* | | checkpatch: improve multi-line alignment testJoe Perches2017-07-111-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The current test fails to warn about improper alignment with code like foo->bar = func(arg1, arg2); because foo->bar is not a single identifier. Convert the $Ident to $Lval which allows for multiple dereferences. Link: http://lkml.kernel.org/r/01c35b9b6a12a415e57746d45d589bfaad39952a.1498841563.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>
* | | checkpatch: improve macro reuse testJoe Perches2017-07-111-6/+6
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | checkpatch reports a false positive when using token pasting argument multiple times in a macro. Fix it. Miscellanea: o Make the $tmp variable name used in the macro argument tests a bit more descriptive Link: http://lkml.kernel.org/r/cf434ae7602838388c7cb49d42bca93ab88527e7.1498483044.git.joe@perches.com Signed-off-by: Joe Perches <joe@perches.com> Reported-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | | checkpatch: change format of --color argument to --color[=WHEN]John Brooks2017-07-111-6/+29
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The boolean --color argument did not offer the ability to force colourized output even if stdout is not a terminal. Change the format of the argument to the familiar --color[=WHEN] construct as seen in common Linux utilities such as git, ls and dmesg, which allows the user to specify whether to colourize output "always", "never", or "auto" when the output is a terminal. The default is "auto". The old command-line uses of --color and --no-color are unchanged. Link: http://lkml.kernel.org/r/efe43bdbad400f39ba691ae663044462493b0773.1496799721.git.joe@perches.com Signed-off-by: John Brooks <john@fastquake.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>
* | | checkpatch: silence perl 5.26.0 unescaped left brace warningsCyril Bur2017-07-111-3/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | As of perl 5, version 26, subversion 0 (v5.26.0) some new warnings have occurred when running checkpatch. Unescaped left brace in regex is deprecated here (and will be fatal in Perl 5.30), passed through in regex; marked by <-- HERE in m/^(.\s*){ <-- HERE \s*/ at scripts/checkpatch.pl line 3544. Unescaped left brace in regex is deprecated here (and will be fatal in Perl 5.30), passed through in regex; marked by <-- HERE in m/^(.\s*){ <-- HERE \s*/ at scripts/checkpatch.pl line 3885. Unescaped left brace in regex is deprecated here (and will be fatal in Perl 5.30), passed through in regex; marked by <-- HERE in m/^(\+.*(?:do|\))){ <-- HERE / at scripts/checkpatch.pl line 4374. It seems perfectly reasonable to do as the warning suggests and simply escape the left brace in these three locations. Link: http://lkml.kernel.org/r/20170607060135.17384-1-cyrilbur@gmail.com Signed-off-by: Cyril Bur <cyrilbur@gmail.com> Acked-by: Joe Perches <joe@perches.com> Cc: <stable@vger.kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | | checkpatch: improve tests for multiple line function definitionsJoe Perches2017-07-111-1/+25
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Add a block that identifies multiple line function definitions. Save the function name into $context_function to improve the embedded function name test. Look for misplaced open brace on the function definition. Emit an OPEN_BRACE error when the function definition is similar to void foo(int arg1, int arg2) { Miscellanea: o Remove the $realfile test in function declaration w/o named arguments test o Comment the function declaration w/o named arguments test Link: http://lkml.kernel.org/r/de620ed6ebab75fdfa323741ada2134a0f545892.1496835238.git.joe@perches.com Signed-off-by: Joe Perches <joe@perches.com> Tested-by: David Kershner <david.kershner@unisys.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | | checkpatch: remove false warning for commit referenceHeinrich Schuchardt2017-07-111-1/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Checkpatch warns of an incorrect commit reference style for any hexadecimal number of 12 digits and more. Numbers of 12 digits are not necessarily commit ids. For an example provoking the problem see https://patchwork.kernel.org/patch/9170897/ Checkpatch should only warn if the number refers to an existing commit. Link: http://lkml.kernel.org/r/20170607184008.5869-1-xypron.glpk@gmx.de Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de> 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>
* | | checkpatch: fix stepping through statements with $stat and ctx_statement_blockJoe Perches2017-07-111-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Fix the off-by-one in the suppression of lines in a statement block. This means that for multiple line statements like foo(bar, baz, qux); $stat has been inspected first correctly for the entire statement, and subsequently incorrectly just for qux); This fix will help make tracking appropriate indentation a little easier. Link: http://lkml.kernel.org/r/71b25979c90412133c717084036c9851cd2b7bcb.1496862585.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>
* | | checkpatch: [HLP]LIST_HEAD is also declarationSteffen Maier2017-07-111-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Fixes the following false warning among others for LLIST_HEAD and PLIST_HEAD: WARNING: Missing a blank line after declarations #71: FILE: drivers/s390/scsi/zfcp_fsf.c:422: + struct hlist_node *tmp; + HLIST_HEAD(remove_queue); Link: http://lkml.kernel.org/r/20170614133512.89425-1-maier@linux.vnet.ibm.com Signed-off-by: Steffen Maier <maier@linux.vnet.ibm.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>
* | | checkpatch: warn when a MAINTAINERS entry isn't [A-Z]:\tJoe Perches2017-07-111-0/+11
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | For consistency, MAINTAINERS entries should be an upper case letter, then a colon, then a tab, then the value. Warn when an entry doesn't have this form. --fix it too. Link: http://lkml.kernel.org/r/9aaaf03ec10adf3888b5e98dd2176b7fe9b5fad8.1496343345.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>
* | | checkpatch: improve the unnecessary OOM message testJoe Perches2017-07-111-1/+1
| |/ |/| | | | | | | | | | | | | | | Use the context around a patch to avoid missing some candidates. Link: http://lkml.kernel.org/r/865e874fbae5decc331a849bd8d71c325db6bc80.1496343345.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>
* | Merge tag 'kbuild-thinar-v4.13' of ↵Linus Torvalds2017-07-082-14/+41
|\ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild Pull Kbuild thin archives updates from Masahiro Yamada: "Thin archives migration by Nicholas Piggin. THIN_ARCHIVES has been available for a while as an optional feature only for PowerPC architecture, but we do not need two different intermediate-artifact schemes. Using thin archives instead of conventional incremental linking has various advantages: - save disk space for builds - speed-up building a little - fix some link issues (for example, allyesconfig on ARM) due to more flexibility for the final linking - work better with dead code elimination we are planning As discussed before, this migration has been done unconditionally so that any problems caused by this will show up with "git bisect". With testing with 0-day and linux-next, some architectures actually showed up problems, but they were trivial and all fixed now" * tag 'kbuild-thinar-v4.13' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild: tile: remove unneeded extra-y in Makefile kbuild: thin archives make default for all archs x86/um: thin archives build fix tile: thin archives fix linking ia64: thin archives fix linking sh: thin archives fix linking kbuild: handle libs-y archives separately from built-in.o archives kbuild: thin archives use P option to ar kbuild: thin archives final link close --whole-archives option ia64: remove unneeded extra-y in Makefile.gate tile: fix dependency and .*.cmd inclusion for incremental build sparc64: Use indirect calls in hamming weight stubs
| * | kbuild: handle libs-y archives separately from built-in.o archivesNicholas Piggin2017-06-301-9/+36
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The thin archives build currently puts all lib.a and built-in.o files together and links them with --whole-archive. This works because thin archives can recursively refer to thin archives. However some architectures include libgcc.a, which may not be a thin archive, or it may not be constructed with the "P" option, in which case its contents do not get linked correctly. So don't pull .a libs into the root built-in.o archive. These libs should already have symbol tables and indexes built, so they can be direct linker inputs. Move them out of the --whole-archive option, which restore the conditional linking behaviour of lib.a to thin archives builds. Signed-off-by: Nicholas Piggin <npiggin@gmail.com> Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
| * | kbuild: thin archives use P option to arNicholas Piggin2017-06-302-5/+5
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The P option makes ar do full path name matching and can prevent ar from discarding files with duplicate names in some cases of creating thin archives from thin archives. The sh architecture in particular loses some object files from its kernel/cpu/sh*/ directories without this option. This could be a bug in binutils ar, but the P option should not cause any negative effects so it is safe to use to work around this with. Signed-off-by: Nicholas Piggin <npiggin@gmail.com> Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
| * | kbuild: thin archives final link close --whole-archives optionNicholas Piggin2017-06-301-3/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Close the --whole-archives option with --no-whole-archive. Some architectures end up including additional .o and files multiple times after this, and they get duplicate symbols when they are brought under the --whole-archives option. This matches more closely with the incremental final link. Signed-off-by: Nicholas Piggin <npiggin@gmail.com> Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
* | | Merge tag 'kbuild-misc-v4.13' of ↵Linus Torvalds2017-07-0825-26/+37
|\ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild Pull misc Kbuild updates from Masahiro Yamada: - Use more portable shebang for Perl scripts - Remove trailing spaces from GCC version in kernel log - Make initramfs generation deterministic * tag 'kbuild-misc-v4.13' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild: kbuild: create deterministic initramfs directory listings scripts/mkcompile_h: Remove trailing spaces from compiler version scripts: Switch to more portable Perl shebang
| * | | kbuild: create deterministic initramfs directory listingsBjørn Forsman2017-07-031-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | kbuild runs "find" on each entry in CONFIG_INITRAMFS_SOURCE that is a directory. The order of the file listing output by "find" matter for build reproducability, hence this patch applies "sort" to get deterministic results. Without this patch, two different machines with identical initramfs directory input may produce differing initramfs cpio archives (different hash) due to the different order of the files within the archive. Signed-off-by: Bjørn Forsman <bjorn.forsman@gmail.com> Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
| * | | scripts/mkcompile_h: Remove trailing spaces from compiler versionJonathan Liu2017-06-191-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Improves the output of "cat /proc/version" by getting rid of the trailing space at the end of the compiler version when the kernel is compiled using GCC. Signed-off-by: Jonathan Liu <net147@gmail.com> Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
| * | | scripts: Switch to more portable Perl shebangKamil Rytarowski2017-05-1424-25/+37
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The default NetBSD package manager is pkgsrc and it installs Perl along other third party programs under custom and configurable prefix. The default prefix for binary prebuilt packages is /usr/pkg, and the Perl executable lands in /usr/pkg/bin/perl. This change switches "/usr/bin/perl" to "/usr/bin/env perl" as it's the most portable solution that should work for almost everybody. Perl's executable is detected automatically. This change switches -w option passed to the executable with more modern "use warnings;" approach. There is no functional change to the default behavior. While there, drop "require 5" from scripts/namespace.pl (Perl from 1994?). Signed-off-by: Kamil Rytarowski <n54@gmx.com> Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
* | | | Merge tag 'kbuild-v4.13' of ↵Linus Torvalds2017-07-074-21/+17
|\ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild Pull Kbuild updates from Masahiro Yamada: - Clean up Makefiles and scripts - Improve clang support - Remove unneeded genhdr-y syntax - Remove unneeded cc-option-align macro - Introduce __cc-option macro and use it to fix x86 boot code compiler flags * tag 'kbuild-v4.13' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild: kbuild: improve comments on KBUILD_SRC x86/build: Specify stack alignment for clang x86/build: Use __cc-option for boot code compiler options kbuild: Add __cc-option macro kbuild: remove cc-option-align kbuild: replace genhdr-y with generated-y kbuild: clang: Disable 'address-of-packed-member' warning kbuild: remove duplicated arch/*/include/generated/uapi include path kbuild: speed up checksyscalls.sh kbuild: simplify silent build (-s) detection
| * | | | kbuild: Add __cc-option macroMatthias Kaehlcke2017-06-252-8/+12
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | cc-option uses KBUILD_CFLAGS and KBUILD_CPPFLAGS when it determines whether an option is supported or not. This is fine for options used to build the kernel itself, however some components like the x86 boot code use a different set of flags. Add the new macro __cc-option which is a more generic version of cc-option with additional parameters. One parameter is the compiler with which the check should be performed, the other the compiler options to be used instead KBUILD_C*FLAGS. Refactor cc-option and hostcc-option to use __cc-option and move hostcc-option to scripts/Kbuild.include. Suggested-by: Arnd Bergmann <arnd@arndb.de> Suggested-by: Masahiro Yamada <yamada.masahiro@socionext.com> Signed-off-by: Matthias Kaehlcke <mka@chromium.org> Acked-by: Arnd Bergmann <arnd@arndb.de> Acked-by: Michal Marek <mmarek@suse.com> Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
| * | | | kbuild: remove cc-option-alignMasahiro Yamada2017-06-251-5/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Documentation/kbuild/makefiles.txt says the change for align options occurred at GCC 3.0, and Documentation/process/changes.rst says the minimal supported GCC version is 3.2, so it should be safe to hard-code -falign* options. Fix the only user arch/x86/Makefile_32.cpu and remove cc-option-align. Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com> Acked-by: Ingo Molnar <mingo@kernel.org>
| * | | | kbuild: replace genhdr-y with generated-yMasahiro Yamada2017-06-221-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Originally, generated-y and genhdr-y had different meaning, like follows: - generated-y: generated headers (other than asm-generic wrappers) - header-y : headers to be exported - genhdr-y : generated headers to be exported (generated-y + header-y) Since commit fcc8487d477a ("uapi: export all headers under uapi directories"), headers under UAPI directories are all exported. So, there is no more difference between generated-y and genhdr-y. We see two users of genhdr-y, arch/{arm,x86}/include/uapi/asm/Kbuild. They generate some headers in arch/{arm,x86}/include/generated/uapi/asm directories, which are obviously exported. Replace them with generated-y, and abolish genhdr-y. Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com> Acked-by: Nicolas Dichtel <nicolas.dichtel@6wind.com>
| * | | | kbuild: speed up checksyscalls.shArnd Bergmann2017-06-091-7/+4
| | |_|/ | |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | checksyscalls.sh is run at every "make" run while building the kernel, even if no files have changed. I looked at where we spend time in a trivial empty rebuild and found checksyscalls.sh to be a source of noticeable overhead, as it spawns a lot of child processes just to call 'cat' copying from stdin to stdout, once for each of the over 400 x86 syscalls. Using a shell-builtin (echo) instead of the external command gives us a 13x speedup: Before After real 0m1.018s real 0m0.077s user 0m0.068s user 0m0.048s sys 0m0.156s sys 0m0.024s The time it took to rebuild a single file on my machine dropped from 5.5 seconds to 4.5 seconds. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
* | | | Merge tag 'devicetree-for-4.13' of ↵Linus Torvalds2017-07-072-2/+2
|\ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux Pull DeviceTree updates from Rob Herring: - vsprintf format specifier %pOF for device_node's. This will enable us to stop storing the full node names. Conversion of users will happen next cycle. - Update documentation to point to DT specification instead of ePAPR. - Split out graph and property functions to a separate file. - New of-graph functions for ALSA - Add vendor prefixes for RISC-V, Linksys, iWave Systems, Roofull, Itead, and BananaPi. - Improve dtx_diff utility filename printing. * tag 'devicetree-for-4.13' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux: (32 commits) of: document /sys/firmware/fdt dt-bindings: Add RISC-V vendor prefix vsprintf: Add %p extension "%pOF" for device tree of: find_node_by_full_name rewrite to compare each level of: use kbasename instead of open coding dt-bindings: thermal: add file extension to brcm,ns-thermal of: update ePAPR references to point to Devicetree Specification scripts/dtc: dtx_diff - Show real file names in diff header of: detect invalid phandle in overlay of: be consistent in form of file mode of: make __of_attach_node() static of: address.c header comment typo of: fdt.c header comment typo of: make of_fdt_is_compatible() static dt-bindings: display-timing.txt convert non-ascii characters to ascii Documentation: remove overlay-notes reference to non-existent file dt-bindings: usb: exynos-usb: Add missing required VDD properties dt-bindings: Add vendor prefix for Linksys MAINTAINERS: add device tree ABI documentation file of: Add vendor prefix for iWave Systems Technologies Pvt. Ltd ...
| * | | | vsprintf: Add %p extension "%pOF" for device treePantelis Antoniou2017-06-271-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 90% of the usage of device node's full_name is printing it out in a kernel message. However, storing the full path for every node is wasteful and redundant. With a custom format specifier, we can generate the full path at run-time and eventually remove the full path from every node. For instance typical use is: pr_info("Frobbing node %s\n", node->full_name); Which can be written now as: pr_info("Frobbing node %pOF\n", node); '%pO' is the base specifier to represent kobjects with '%pOF' representing struct device_node. Currently, struct device_node is the only supported type of kobject. More fine-grained control of formatting includes printing the name, flags, path-spec name and others, explained in the documentation entry. Originally written by Pantelis, but pretty much rewrote the core function using existing string/number functions. The 2 passes were unnecessary and have been removed. Also, updated the checkpatch.pl check. The unittest code was written by Grant Likely. Signed-off-by: Pantelis Antoniou <pantelis.antoniou@konsulko.com> Acked-by: Joe Perches <joe@perches.com> Signed-off-by: Rob Herring <robh@kernel.org>
| * | | | scripts/dtc: dtx_diff - Show real file names in diff headerGeert Uytterhoeven2017-06-221-1/+1
| | |/ / | |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | As the comparison uses process substitution to pass files after conversion to DTS format, the diff header doesn't show the real filenames, but the names of the file descriptors used: --- /dev/fd/63 2017-06-22 11:21:47.531637188 +0200 +++ /dev/fd/62 2017-06-22 11:21:47.531637188 +0200 This is especially annoying when comparing a bunch of DT files in a loop, as the output doesn't show a clue about which files it refers to. Fix this by explicitly passing the original file names to the diff command using the --label option, giving e.g.: --- arch/arm/boot/dts/r8a7791-koelsch.dtb +++ arch/arm/boot/dts/r8a7791-porter.dtb Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Reviewed-by: Frank Rowand <frank.rowand@sony.com> Signed-off-by: Rob Herring <robh@kernel.org>
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