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2017-09-27Merge tag 'linux-kselftest-4.14-rc3-fixes' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest Pull kselftest fixes from Shuah Khan: "This update consists of: - fixes to several existing tests - a test for regression introduced by b9470c27607b ("inet: kill smallest_size and smallest_port") - seccomp support for glibc 2.26 siginfo_t.h - fixes to kselftest framework and tests to run make O=dir use-case - fixes to silence unnecessary test output to de-clutter test results" * tag 'linux-kselftest-4.14-rc3-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest: (28 commits) selftests: timers: set-timer-lat: Fix hang when testing unsupported alarms selftests: timers: set-timer-lat: fix hang when std out/err are redirected selftests/memfd: correct run_tests.sh permission selftests/seccomp: Support glibc 2.26 siginfo_t.h selftests: futex: Makefile: fix for loops in targets to run silently selftests: Makefile: fix for loops in targets to run silently selftests: mqueue: Use full path to run tests from Makefile selftests: futex: copy sub-dir test scripts for make O=dir run selftests: lib.mk: copy test scripts and test files for make O=dir run selftests: sync: kselftest and kselftest-clean fail for make O=dir case selftests: sync: use TEST_CUSTOM_PROGS instead of TEST_PROGS selftests: lib.mk: add TEST_CUSTOM_PROGS to allow custom test run/install selftests: watchdog: fix to use TEST_GEN_PROGS and remove clean selftests: lib.mk: fix test executable status check to use full path selftests: Makefile: clear LDFLAGS for make O=dir use-case selftests: lib.mk: kselftest and kselftest-clean fail for make O=dir case Makefile: kselftest and kselftest-clean fail for make O=dir case selftests/net: msg_zerocopy enable build with older kernel headers selftests: actually run the various net selftests selftest: add a reuseaddr test ...
2017-09-24Linux 4.14-rc2Linus Torvalds
2017-09-21Makefile: kselftest and kselftest-clean fail for make O=dir caseShuah Khan
kselftest and kselftest-clean targets fail when object directory is specified to relocate objects. Fix it so it can find the source tree to build from. make O=/tmp/kselftest_top kselftest make[1]: Entering directory '/tmp/kselftest_top' make[2]: Entering directory '/tmp/kselftest_top' make[2]: *** tools/testing/selftests: No such file or directory. Stop. make[2]: Leaving directory '/tmp/kselftest_top' ./linux-kselftest/Makefile:1185: recipe for target 'kselftest' failed make[1]: *** [kselftest] Error 2 make[1]: Leaving directory '/tmp/kselftest_top' Makefile:145: recipe for target 'sub-make' failed make: *** [sub-make] Error 2 Signed-off-by: Shuah Khan <shuahkh@osg.samsung.com> Acked-by: Masahiro Yamada <yamada.masahiro@socionext.com>
2017-09-16Linux 4.14-rc1Linus Torvalds
2017-09-16firmware: Restore support for built-in firmwareMarkus Trippelsdorf
Commit 5620a0d1aac ("firmware: delete in-kernel firmware") removed the entire firmware directory. Unfortunately it thereby also removed the support for built-in firmware. This restores the ability to build firmware directly into the kernel by pruning the original Makefile to the necessary minimum. The default for EXTRA_FIRMWARE_DIR is now the standard directory /lib/firmware/. Fixes: 5620a0d1aac ("firmware: delete in-kernel firmware") Signed-off-by: Markus Trippelsdorf <markus@trippelsdorf.de> Acked-by: Greg K-H <gregkh@linuxfoundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2017-09-15Merge tag 'firmware_removal-4.14-rc1' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core Pull firmware removal from Greg KH: "Many many years ago (at the kernel summit in Boston), we all came to the agreement that the firmware/ tree should be dropped from the kernel, and everyone use the linux-firmware package instead. For some minor reason, David Woodhouse didn't send the pull request at that point in time, and everyone forgot about this. The topic came up in the hallway track at the Plumbers conference this week, so here's a single patch that drops the whole firmware tree. The last firmware update was back in 2013, and all distros have been using linux-firmware instead since at least that year, if not before. The only commits to that directory since 2013 was some kbuild fixups for various build tool issues. So lets finally drop this, we don't need to lug them around in the kernel source tree anymore, especially as no one wants or uses them. This has passed build testing with 0-day, I don't think it made it into linux-next this week, but I figured it was good to get in before 4.14-rc1 was out" * tag 'firmware_removal-4.14-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core: firmware: delete in-kernel firmware
2017-09-14firmware: delete in-kernel firmwareGreg Kroah-Hartman
The last firmware change for the in-kernel firmware source code was back in 2013. Everyone has been relying on the out-of-tree linux-firmware package for a long long time. So let's drop it, it's baggage we don't need to keep dragging around (and having to fix random kbuild issues over time...) Cc: Kyle McMartin <kyle@kernel.org> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: Michal Marek <mmarek@suse.com> Cc: Masahiro Yamada <yamada.masahiro@socionext.com> Acked-by: David Woodhouse <dwmw2@infradead.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-09-14Merge tag 'kbuild-v4.14' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild Pull Kbuild updates from Masahiro Yamada: - Use Make-builtin $(abspath ...) helper to get absolute path - Add W=2 extra warning option to detect unused macros - Use more KCONFIG_CONFIG instead hard-coded .config - Fix bugs of tar*-pkg targets * tag 'kbuild-v4.14' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild: kbuild: buildtar: do not print successful message if tar returns error kbuild: buildtar: fix tar error when CONFIG_MODULES is disabled kbuild: Use KCONFIG_CONFIG in buildtar Kbuild: enable -Wunused-macros warning for "make W=2" kbuild: use $(abspath ...) instead of $(shell cd ... && /bin/pwd)
2017-09-03Merge branch 'docs-next' of git://git.lwn.net/linuxLinus Torvalds
Pull documentation updates from Jonathan Corbet: "After a fair amount of churn in the last couple of cycles, docs are taking it easier this time around. Lots of fixes and some new documentation, but nothing all that radical. Perhaps the most interesting change for many is the scripts/sphinx-pre-install tool from Mauro; it will tell you exactly which packages you need to install to get a working docs toolchain on your system. There are two little patches reaching outside of Documentation/; both just tweak kerneldoc comments to eliminate warnings and fix some dangling doc pointers" * 'docs-next' of git://git.lwn.net/linux: (52 commits) Documentation/sphinx: fix kernel-doc decode for non-utf-8 locale genalloc: Fix an incorrect kerneldoc comment doc: Add documentation for the genalloc subsystem assoc_array: fix path to assoc_array documentation kernel-doc parser mishandles declarations split into lines docs: ReSTify table of contents in core.rst docs: process: drop git snapshots from applying-patches.rst Documentation:input: fix typo swap: Remove obsolete sentence sphinx.rst: Allow Sphinx version 1.6 at the docs docs-rst: fix verbatim font size on tables Documentation: stable-kernel-rules: fix broken git urls rtmutex: update rt-mutex rtmutex: update rt-mutex-design docs: fix minimal sphinx version in conf.py docs: fix nested numbering in the TOC NVMEM documentation fix: A minor typo docs-rst: pdf: use same vertical margin on all Sphinx versions doc: Makefile: if sphinx is not found, run a check script docs: Fix paths in security/keys ...
2017-09-03Linux 4.13Linus Torvalds
2017-09-01kbuild: use $(abspath ...) instead of $(shell cd ... && /bin/pwd)Masahiro Yamada
Kbuild conventionally uses $(shell cd ... && /bin/pwd) idiom to get the absolute path of the directory because GNU Make 3.80, the minimal supported version at that time, did not support $(abspath ...) or $(realpath ...). Commit 37d69ee30808 ("docs: bump minimal GNU Make version to 3.81") dropped the GNU Make 3.80 support, so we are now allowed to use those make-builtin helpers. This conversion will provide better portability without relying on the pwd command or its location /bin/pwd. I am intentionally using $(realpath ...) instead $(abspath ...) in some places. The difference between the two is $(realpath ...) returns an empty string if the given path does not exist. It is convenient in places where we need to error-out if the makefile fails to create an output directory. Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com> Acked-by: Thierry Reding <treding@nvidia.com>
2017-08-27Linux 4.13-rc7Linus Torvalds
2017-08-24Merge tag 'kbuild-fixes-v4.13' of ↵Linus Torvalds
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
2017-08-21Makefile: add kselftest-clean to PHONY target listShuah Khan
kselftest-clean isn't in the PHONY target list. Add it. Signed-off-by: Shuah Khan <shuahkh@osg.samsung.com> Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
2017-08-21Kbuild: use -fshort-wchar globallyArnd Bergmann
Commit 971a69db7dc0 ("Xen: don't warn about 2-byte wchar_t in efi") added the --no-wchar-size-warning to the Makefile to avoid this harmless warning: arm-linux-gnueabi-ld: warning: drivers/xen/efi.o uses 2-byte wchar_t yet the output is to use 4-byte wchar_t; use of wchar_t values across objects may fail Changing kbuild to use thin archives instead of recursive linking unfortunately brings the same warning back during the final link. The kernel does not use wchar_t string literals at this point, and xen does not use wchar_t at all (only efi_char16_t), so the flag has no effect, but as pointed out by Jan Beulich, adding a wchar_t string literal would be bad here. Since wchar_t is always defined as u16, independent of the toolchain default, always passing -fshort-wchar is correct and lets us remove the Xen specific hack along with fixing the warning. Link: https://patchwork.kernel.org/patch/9275217/ Fixes: 971a69db7dc0 ("Xen: don't warn about 2-byte wchar_t in efi") Signed-off-by: Arnd Bergmann <arnd@arndb.de> Acked-by: David Vrabel <david.vrabel@citrix.com> Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
2017-08-20Linux 4.13-rc6Linus Torvalds
2017-08-13Linux 4.13-rc5Linus Torvalds
2017-08-10kbuild: trivial cleanups on the commentsCao jin
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>
2017-08-06Linux 4.13-rc4Linus Torvalds
2017-07-30Linux 4.13-rc3Linus Torvalds
2017-07-23Linux 4.13-rc2Linus Torvalds
2017-07-23docs: Makefile: remove no-ops targetsMauro Carvalho Chehab
After removal of DocBook, those targets are bogus. Reported-by: Jim Davis <jim.epost@gmail.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com> Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2017-07-15Linux v4.13-rc1Linus Torvalds
2017-07-13Merge tag 'kbuild-v4.13-2' of ↵Linus Torvalds
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 ...
2017-07-12disable new gcc-7.1.1 warnings for nowLinus Torvalds
I made the mistake of upgrading my desktop to the new Fedora 26 that comes with gcc-7.1.1. There's nothing wrong per se that I've noticed, but I now have 1500 lines of warnings, mostly from the new format-truncation warning triggering all over the tree. We use 'snprintf()' and friends in a lot of places, and often know that the numbers are fairly small (ie a controller index or similar), but gcc doesn't know that, and sees an 'int', and thinks that it could be some huge number. And then complains when our buffers are not able to fit the name for the ten millionth controller. These warnings aren't necessarily bad per se, and we probably want to look through them subsystem by subsystem, but at least during the merge window they just mean that I can't even see if somebody is introducing any *real* problems when I pull. So warnings disabled for now. Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2017-07-11kbuild: Enable Large File Support for hostprogsUwe Kleine-König
This fixes the following build error for me when building on an 32 bit machine using an XFS file system: $ make scripts/basic/fixdep HOSTCC scripts/basic/fixdep fixdep: error fstat'ing depfile: scripts/basic/.fixdep.d: Value too large for defined data type Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Acked-by: Ben Hutchings <ben@decadent.org.uk> Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
2017-07-11kbuild: split exported generic header creation into uapi-asm-genericMasahiro Yamada
When we install headers, we are interested only in headers under uapi directories. Split out uapi-asm-generic target and make headers_install depend on it. It will avoid generating unneeded asm-generic wrappers. Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
2017-07-10kbuild: pass dst= to Makefile.headersinst from top MakefileMasahiro Yamada
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>
2017-07-10kbuild: fix comment about dst of headers_{install, check}_allMasahiro Yamada
Commit 61562f981e92 ("uapi: export all arch specifics directories") changed the dst from asm-<arch> to arch-<arch> for headers_install_all or headers_check_all. Update the comment. Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
2017-07-07Merge tag 'kbuild-thinar-v4.13' of ↵Linus Torvalds
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
2017-07-07Merge tag 'kbuild-v4.13' of ↵Linus Torvalds
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
2017-07-03Merge tag 'docs-4.13' of git://git.lwn.net/linuxLinus Torvalds
Pull documentation updates from Jonathan Corbet: "There has been a fair amount of activity in the docs tree this time around. Highlights include: - Conversion of a bunch of security documentation into RST - The conversion of the remaining DocBook templates by The Amazing Mauro Machine. We can now drop the entire DocBook build chain. - The usual collection of fixes and minor updates" * tag 'docs-4.13' of git://git.lwn.net/linux: (90 commits) scripts/kernel-doc: handle DECLARE_HASHTABLE Documentation: atomic_ops.txt is core-api/atomic_ops.rst Docs: clean up some DocBook loose ends Make the main documentation title less Geocities Docs: Use kernel-figure in vidioc-g-selection.rst Docs: fix table problems in ras.rst Docs: Fix breakage with Sphinx 1.5 and upper Docs: Include the Latex "ifthen" package doc/kokr/howto: Only send regression fixes after -rc1 docs-rst: fix broken links to dynamic-debug-howto in kernel-parameters doc: Document suitability of IBM Verse for kernel development Doc: fix a markup error in coding-style.rst docs: driver-api: i2c: remove some outdated information Documentation: DMA API: fix a typo in a function name Docs: Insert missing space to separate link from text doc/ko_KR/memory-barriers: Update control-dependencies example Documentation, kbuild: fix typo "minimun" -> "minimum" docs: Fix some formatting issues in request-key.rst doc: ReSTify keys-trusted-encrypted.txt doc: ReSTify keys-request-key.txt ...
2017-07-02Linux 4.12Linus Torvalds
2017-07-03kbuild: improve comments on KBUILD_SRCCao jin
Original comments is confusing on "OBJ directory", make it clear. Bonus: move comments close to what it wants to comment. Signed-off-by: Cao jin <caoj.fnst@cn.fujitsu.com> Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
2017-06-30kbuild: handle libs-y archives separately from built-in.o archivesNicholas Piggin
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>
2017-06-25Linux 4.12-rc7Linus Torvalds
2017-06-25kbuild: Add __cc-option macroMatthias Kaehlcke
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>
2017-06-24Merge tag 'kbuild-fixes-v4.12-2' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild Pull Kbuild fixes from Masahiro Yamada: "Nothing scary, just some random fixes: - fix warnings of host programs - fix "make tags" when COMPILED_SOURCE=1 is specified along with O= - clarify help message of C=1 option - fix dependency for ncurses compatibility check - fix "make headers_install" for fakechroot environment" * tag 'kbuild-fixes-v4.12-2' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild: kconfig: fix sparse warnings in nconfig kbuild: fix header installation under fakechroot environment kconfig: Check for libncurses before menuconfig Kbuild: tiny correction on `make help` tags: honor COMPILED_SOURCE with apart output directory genksyms: add printf format attribute to error_with_pos()
2017-06-23Docs: clean up some DocBook loose endsJonathan Corbet
There were a few bits and pieces left over from the now-disused DocBook toolchain; git rid of them. Reported-by: Markus Heiser <markus.heiser@darmarit.de> Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2017-06-22kbuild: clang: Disable 'address-of-packed-member' warningMatthias Kaehlcke
clang generates plenty of these warnings in different parts of the code, to an extent that the warnings are little more than noise. Disable the 'address-of-packed-member' warning. Signed-off-by: Matthias Kaehlcke <mka@chromium.org> Reviewed-by: Douglas Anderson <dianders@chromium.org> Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
2017-06-19Linux 4.12-rc6Linus Torvalds
2017-06-11Linux 4.12-rc5Linus Torvalds
2017-06-10kbuild: remove duplicated arch/*/include/generated/uapi include pathMasahiro Yamada
Commit 90ac086bca10 ("Makefile: include arch/*/include/generated/uapi before .../generated") introduced this for bisect'ability. The commit chose to promote arch/*/include/generated/uapi in the search path rather than cleaning stale headers. After all, we found that approach was not enough, and ended up with cleaning stale headers by commit cda2c65f981d ("kbuild: Remove stale asm-generic wrappers"). So, the extra search path is no longer needed because Kbuild invokes scripts/Makefile.asm-generic and remove stale headers before it starts descending. This commit is also reverting commit dc33db7c338e ("Kbuild: avoid duplicate include path") because we have no more duplicated path. Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
2017-06-06Kbuild: tiny correction on `make help`Cao jin
The help info of `make C=1` is little confusing, make it clear. Signed-off-by: Cao jin <caoj.fnst@cn.fujitsu.com> Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
2017-06-06kbuild: simplify silent build (-s) detectionMasahiro Yamada
This allows to detect -s (--silent) option without checking GNU Make version. As commit e36aaea28972 ("kbuild: Fix silent builds with make-4") pointed out, GNU Make 4.x changed the way/order it presents the command line options into MAKEFLAGS. In Make 3.8x, 's' is always the first in a group of short options. The group may be prefixed with '-' in some cases. In Make 4.x, 's' is always the last in a group of short options. As commit e6ac89fabd03 ("kbuild: Correctly deal with make options which contain an 's'") addressed, we also need to deal with long options that contain 's', like --warn-undefined-variables. Test cases: [1] command line input: make --silent -> MAKEFLAGS for Make 3.8x: s -> MAKEFLAGS for Make 4.x : s [2] command line input: make -srR -> MAKEFLAGS for Make 3.8x: sRr -> MAKEFLAGS for Make 4.x : rRs [3] command line input: make -s -rR --warn-undefined-variables -> MAKEFLAGS for Make 3.8x: --warn-undefined-variables -sRr -> MAKEFLAGS for Make 4.x : rRs --warn-undefined-variables My idea to cater to all the cases more easily is to filter out long options (--%), then search 's' with $(findstring ...). This way will be more future-proof even if future versions of Make put 's' in the middle of the group. Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
2017-06-04Linux 4.12-rc4Linus Torvalds
2017-05-28Linux 4.12-rc3Linus Torvalds
2017-05-21Linux 4.12-rc2Linus Torvalds
2017-05-18Merge remote-tracking branch 'mauro-exp/docbook3' into death-to-docbookJonathan Corbet
Mauro says: This patch series convert the remaining DocBooks to ReST. The first version was originally send as 3 patch series: [PATCH 00/36] Convert DocBook documents to ReST [PATCH 0/5] Convert more books to ReST [PATCH 00/13] Get rid of DocBook The lsm book was added as if it were a text file under Documentation. The plan is to merge it with another file under Documentation/security, after both this series and a security Documentation patch series gets merged. It also adjusts some Sphinx-pedantic errors/warnings on some kernel-doc markups. I also added some patches here to add PDF output for all existing ReST books.
2017-05-18kbuild: skip install/check of headers right under uapi directoriesMasahiro Yamada
Since commit 61562f981e92 ("uapi: export all arch specifics directories"), "make INSTALL_HDR_PATH=$root/usr headers_install" deletes standard glibc headers and others in $(root)/usr/include. The cause of the issue is that headers_install now starts descending from arch/$(hdr-arch)/include/uapi with $(root)/usr/include for its destination when installing asm headers. So, headers already there are assumed to be unwanted. When headers_install starts descending from include/uapi with $(root)/usr/include for its destination, it works around the problem by creating an dummy destination $(root)/usr/include/uapi, but this is tricky. To fix the problem in a clean way is to skip headers install/check in include/uapi and arch/$(hdr-arch)/include/uapi because we know there are only sub-directories in uapi directories. A good side effect is the empty destination $(root)/usr/include/uapi will go away. I am also removing the trailing slash in the headers_check target to skip checking in arch/$(hdr-arch)/include/uapi. Fixes: 61562f981e92 ("uapi: export all arch specifics directories") Reported-by: Dan Williams <dan.j.williams@intel.com> Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com> Tested-by: Dan Williams <dan.j.williams@intel.com> Acked-by: Nicolas Dichtel <nicolas.dichtel@6wind.com>