linux/Documentation/dev-tools, branch v4.15

Merge tag 'kbuild-misc-v4.15' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild

2017-11-18T01:51:33Z

Pull Kbuild misc updates from Masahiro Yamada: - Clean up and fix RPM package build - Fix a warning in DEB package build - Improve coccicheck script - Improve some semantic patches * tag 'kbuild-misc-v4.15' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild: docs: dev-tools: coccinelle: delete out of date wiki reference coccinelle: orplus: reorganize to improve performance coccinelle: use exists to improve efficiency builddeb: Pass the kernel:debarch substvar to dpkg-genchanges Coccinelle: use false positive annotation coccinelle: fix verbose message about .cocci file being run coccinelle: grep Options and Requires fields more precisely Coccinelle: make DEBUG_FILE option more useful coccinelle: api: detect identical chip data arrays coccinelle: Improve setup_timer.cocci matching Coccinelle: setup_timer: improve messages from setup_timer kbuild: rpm-pkg: do not force -jN in submake kbuild: rpm-pkg: keep spec file until make mrproper kbuild: rpm-pkg: fix jobserver unavailable warning kbuild: rpm-pkg: replace $RPM_BUILD_ROOT with %{buildroot} kbuild: rpm-pkg: fix build error when CONFIG_MODULES is disabled kbuild: rpm-pkg: refactor mkspec with here doc kbuild: rpm-pkg: clean up mkspec kbuild: rpm-pkg: install vmlinux.bz2 unconditionally kbuild: rpm-pkg: remove ppc64 specific image handling

kcov: update documentation

2017-11-18T00:10:04Z

The updated documentation describes new KCOV mode for collecting comparison operands. Link: http://lkml.kernel.org/r/20171011095459.70721-3-glider@google.com Signed-off-by: Victor Chibotaru Signed-off-by: Alexander Potapenko Cc: Dmitry Vyukov Cc: Andrey Konovalov Cc: Mark Rutland Cc: Alexander Popov Cc: Andrey Ryabinin Cc: Kees Cook Cc: Vegard Nossum Cc: Quentin Casasnovas Cc: Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds

kmemcheck: rip it out

2017-11-16T02:21:05Z

Fix up makefiles, remove references, and git rm kmemcheck. Link: http://lkml.kernel.org/r/20171007030159.22241-4-alexander.levin@verizon.com Signed-off-by: Sasha Levin Cc: Steven Rostedt Cc: Vegard Nossum Cc: Pekka Enberg Cc: Michal Hocko Cc: Eric W. Biederman Cc: Alexander Potapenko Cc: Tim Hansen Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds

docs: dev-tools: coccinelle: delete out of date wiki reference

2017-11-15T23:56:43Z

The wiki is no longer available. Signed-off-by: Julia Lawall Signed-off-by: Masahiro Yamada

docs: dev-tools: correct Coccinelle version number

2017-10-19T18:55:24Z

There is no Coccinelle version 1.2. 1.0.2 must be what was intended. Signed-off-by: Julia Lawall Signed-off-by: Jonathan Corbet

doc: dev-tools: kselftest.rst: update to include make O=dir support

2017-10-12T17:01:40Z

Update to include details on make O=dir support and other changes improve test results output. Signed-off-by: Shuah Khan [jc: Tweaked RST formatting slightly ] Signed-off-by: Jonathan Corbet

docs: disable KASLR when debugging kernel

2017-07-17T20:49:01Z

commit 6807c84652b0 ("x86: Enable KASLR by default") enables KASLR by default on x86. While KASLR will confuse gdb which resolve kernel symbol address from symbol table of vmlinux. We should turn off KASLR for kernel debugging. Signed-off-by: Zhouyi Zhou Reviewed-by: Kieran Bingham Acked-by: Jan Kiszka Signed-off-by: Jonathan Corbet

docs: disable KASLR when debugging kernel

2017-07-17T20:40:40Z

Merge tag 'linux-kselftest-4.13-rc1-update' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest

2017-07-07T21:04:47Z

Pull Kselftest updates from Shuah Khan: "This update consists of: - TAP13 framework and changes to some tests to convert to TAP13. Converting kselftest output to standard format will help identify run to run differences and pin point failures easily. TAP13 format has been in use for several years and the output is human friendly. Please find the specification: https://testanything.org/tap-version-13-specification.html Credit goes to Tim Bird for recommending TAP13 as a suitable format, and to Grag KH for kick starting the work with help from Paul Elder and Alice Ferrazzi The first phase of the TAp13 conversion is included in this update. Future updates will include updates to rest of the tests. - Masami Hiramatsu fixed ftrace to run on 4.9 stable kernels. - Kselftest documnetation has been converted to ReST format. Document now has a new home under Documentation/dev-tools. - kselftest_harness.h is now available for general use as a result of Mickaël Salaün's work. - Several fixes to skip and/or fail tests gracefully on older releases" * tag 'linux-kselftest-4.13-rc1-update' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest: (48 commits) selftests: membarrier: use ksft_* var arg msg api selftests: breakpoints: breakpoint_test_arm64: convert test to use TAP13 selftests: breakpoints: step_after_suspend_test use ksft_* var arg msg api selftests: breakpoint_test: use ksft_* var arg msg api kselftest: add ksft_print_msg() function to output general information kselftest: make ksft_* output functions variadic selftests/capabilities: Fix the test_execve test selftests: intel_pstate: add .gitignore selftests: fix memory-hotplug test selftests: add missing test name in memory-hotplug test selftests: check percentage range for memory-hotplug test selftests: check hot-pluggagble memory for memory-hotplug test selftests: typo correction for memory-hotplug test selftests: ftrace: Use md5sum to take less time of checking logs tools/testing/selftests/sysctl: Add pre-check to the value of writes_strict kselftest.rst: do some adjustments after ReST conversion selftest/net/Makefile: Specify output with $(OUTPUT) selftest/intel_pstate/aperf: Use LDLIBS instead of LDFLAGS selftest/memfd/Makefile: Fix build error selftests: lib: Skip tests on missing test modules ...

mm: kmemleak: treat vm_struct as alternative reference to vmalloc'ed objects

2017-07-06T23:24:34Z

Kmemleak requires that vmalloc'ed objects have a minimum reference count of 2: one in the corresponding vm_struct object and the other owned by the vmalloc() caller. There are cases, however, where the original vmalloc() returned pointer is lost and, instead, a pointer to vm_struct is stored (see free_thread_stack()). Kmemleak currently reports such objects as leaks. This patch adds support for treating any surplus references to an object as additional references to a specified object. It introduces the kmemleak_vmalloc() API function which takes a vm_struct pointer and sets its surplus reference passing to the actual vmalloc() returned pointer. The __vmalloc_node_range() calling site has been modified accordingly. Link: http://lkml.kernel.org/r/1495726937-23557-4-git-send-email-catalin.marinas@arm.com Signed-off-by: Catalin Marinas Reported-by: "Luis R. Rodriguez" Cc: Michal Hocko Cc: Andy Lutomirski Cc: "Luis R. Rodriguez" Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds