Nathan Chancellor
866a85813b
Makefile.extrawarn: Move -Wunaligned-access to W=1 ...
commit 1cf5f151d25fcca94689efd91afa0253621fb33a upstream.
-Wunaligned-access is a new warning in clang that is default enabled for
arm and arm64 under certain circumstances within the clang frontend (see
LLVM commit below). On v5.17-rc2, an ARCH=arm allmodconfig build shows
1284 total/70 unique instances of this warning (most of the instances
are in header files), which is quite noisy.
To keep a normal build green through CONFIG_WERROR, only show this
warning with W=1, which will allow automated build systems to catch new
instances of the warning so that the total number can be driven down to
zero eventually since catching unaligned accesses at compile time would
be generally useful.
Cc: stable@vger.kernel.org
Link: 35737df4dchttps://github.com/ClangBuiltLinux/linux/issues/1569
Link: https://github.com/ClangBuiltLinux/linux/issues/1576
Signed-off-by: Nathan Chancellor <nathan@kernel.org>
Reviewed-by: Nick Desaulniers <ndesaulniers@google.com>
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
[nathan: Fix conflict due to lack of afe956c577b2d]
Signed-off-by: Nathan Chancellor <nathan@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2022-02-23 11:59:54 +01:00
scripts: add dummy report mode to add_namespace.cocci
2020-08-11 15:33:35 +02:00
scripts/dtc: dtx_diff: remove broken example from help text
2022-01-27 09:19:55 +01:00
scripts/gdb: fix lx-symbols 'gdb.error' while loading modules
2020-07-29 10:18:35 +02:00
kconfig: nconf: stop endless search loops
2021-05-19 10:08:23 +02:00
vmlinux.lds.h: Create section for protection against instrumentation
2021-02-17 10:35:16 +01:00
kbuild: fix broken builds because of GZIP,BZIP2,LZOP variables
2020-09-03 11:27:10 +02:00
scripts/tracing: fix the bug that can't parse raw_trace_func
2021-08-12 13:21:00 +02:00
scripts: switch explicitly to Python 3
2021-05-22 11:38:30 +02:00
checkpatch: fix unescaped left brace
2020-12-30 11:51:27 +01:00
tweewide: Fix most Shebang lines
2021-05-22 11:38:30 +02:00
scripts/decode_stacktrace: strip basepath from all paths
2020-07-29 10:18:35 +02:00
depmod: handle the case of /sbin/depmod without /sbin in PATH
2021-01-12 20:16:10 +01:00
scripts: switch explicitly to Python 3
2021-05-22 11:38:30 +02:00
kbuild: Fix 'no symbols' warning when CONFIG_TRIM_UNUSD_KSYMS=y
2021-09-22 12:26:26 +02:00
tweewide: Fix most Shebang lines
2021-05-22 11:38:30 +02:00
kbuild: sink stdout from cmd for silent build
2021-07-25 14:35:11 +02:00
leaking_addresses: Always print a trailing newline
2021-11-17 09:48:31 +01:00
scripts: set proper OpenSSL include dir also for sign-file
2021-02-26 10:10:27 +01:00
kbuild: Fix objtool dependency for 'OBJECT_FILES_NON_STANDARD_<obj> := n'
2021-07-14 16:53:20 +02:00
Makefile.extrawarn: Move -Wunaligned-access to W=1
2022-02-23 11:59:54 +01:00
gcc-plugins/structleak: add makefile var for disabling structleak
2021-10-27 09:54:28 +02:00
kbuild: fix broken builds because of GZIP,BZIP2,LZOP variables
2020-09-03 11:27:10 +02:00
kbuild: fix broken builds because of GZIP,BZIP2,LZOP variables
2020-09-03 11:27:10 +02:00
kbuild: mkcompile_h: consider timestamp if KBUILD_BUILD_TIMESTAMP is set
2021-07-25 14:35:12 +02:00
scripts: add dummy report mode to add_namespace.cocci
2020-08-11 15:33:35 +02:00
ftrace: Have recordmcount use w8 to read relp->r_info in arm64_is_fake_mcount
2021-03-09 11:09:39 +01:00
recordmcount: Correct st_shndx handling
2021-06-30 08:47:49 -04:00
recordmcount.pl: fix typo in s390 mcount regex
2022-01-05 12:37:44 +01:00
scripts/setlocalversion: make git describe output more reliable
2020-11-01 12:01:01 +01:00
tweewide: Fix most Shebang lines
2021-05-22 11:38:30 +02:00
tweewide: Fix most Shebang lines
2021-05-22 11:38:30 +02:00
tweewide: Fix most Shebang lines
2021-05-22 11:38:30 +02:00
Makefile: fix GDB warning with CONFIG_RELR
2021-07-14 16:53:12 +02:00
kbuild: add variables for compression tools
2020-09-03 11:27:10 +02:00
866a85813b