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Nathan Chancellor 4bc7e76ee0 Makefile.extrawarn: Move -Wunaligned-access to W=1 
commit 1cf5f151d2 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: https://github.com/llvm/llvm-project/commit/35737df4dcd28534bd3090157c224c19b501278a
Link: https://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 afe956c577]
Signed-off-by: Nathan Chancellor <nathan@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2022-02-23 11:56:38 +01:00
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basic
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coccinelle
fs: stream_open - opener for stream-like files so that read and write can run simultaneously without deadlock
2019-06-11 12:22:49 +02:00
dtc
scripts/dtc: dtx_diff: remove broken example from help text
2022-01-27 08:47:42 +01:00
gcc-plugins
gcc-common.h: Update for GCC 10
2020-05-27 16:41:43 +02:00
gdb
scripts/gdb: fix lx-version string output
2021-01-12 19:49:03 +01:00
genksyms
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kconfig
kconfig: nconf: stop endless search loops
2021-05-22 10:40:30 +02:00
ksymoops
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mod
modpost: skip ELF local symbols during section mismatch check
2019-12-21 10:41:17 +01:00
package
builddeb: Fix header package regarding dtc source links
2018-05-30 07:50:39 +02:00
selinux
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tracing
scripts/tracing: fix the bug that can't parse raw_trace_func
2021-08-15 13:01:03 +02:00
.gitignore
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adjust_autoksyms.sh
kbuild: make scripts/adjust_autoksyms.sh robust against timestamp races
2018-05-30 07:50:37 +02:00
analyze_suspend.py
tweewide: Fix most Shebang lines
2021-06-03 08:23:27 +02:00
asn1_compiler.c
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bloat-o-meter
scripts: switch explicitly to Python 3
2021-06-03 08:23:27 +02:00
bootgraph.pl
tweewide: Fix most Shebang lines
2021-06-03 08:23:27 +02:00
check_extable.sh
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check-lc_ctype.c
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checkincludes.pl
tweewide: Fix most Shebang lines
2021-06-03 08:23:27 +02:00
checkkconfigsymbols.py
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checkpatch.pl
checkpatch: fix unescaped left brace
2020-12-29 13:45:01 +01:00
checkstack.pl
tweewide: Fix most Shebang lines
2021-06-03 08:23:27 +02:00
checksyscalls.sh
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checkversion.pl
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cleanfile
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cleanpatch
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coccicheck
coccinelle: fix parallel build with CHECK=scripts/coccicheck
2017-12-14 09:28:22 +01:00
config
tweewide: Fix most Shebang lines
2021-06-03 08:23:27 +02:00
conmakehash.c
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const_structs.checkpatch
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decode_stacktrace.sh
scripts/decode_stacktrace: strip basepath from all paths
2020-07-31 16:44:03 +02:00
decodecode
scripts/decodecode: fix trapping instruction formatting
2020-05-20 08:15:29 +02:00
depmod.sh
depmod: handle the case of /sbin/depmod without /sbin in PATH
2021-01-12 19:49:01 +01:00
diffconfig
scripts: switch explicitly to Python 3
2021-06-03 08:23:27 +02:00
docproc.c
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export_report.pl
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extract_xc3028.pl
tweewide: Fix most Shebang lines
2021-06-03 08:23:27 +02:00
extract-cert.c
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extract-ikconfig
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extract-module-sig.pl
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extract-sys-certs.pl
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extract-vmlinux
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faddr2line
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gcc-goto.sh
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gcc-ld
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gcc-plugin.sh
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gcc-version.sh
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gcc-x86_32-has-stack-protector.sh
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gcc-x86_64-has-stack-protector.sh
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gen_initramfs_list.sh
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get_dvb_firmware
tweewide: Fix most Shebang lines
2021-06-03 08:23:27 +02:00
get_maintainer.pl
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gfp-translate
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headerdep.pl
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headers_check.pl
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headers_install.sh
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headers.sh
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insert-sys-cert.c
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kallsyms.c
scripts/kallsyms: fix definitely-lost memory leak
2020-01-04 13:41:02 +01:00
Kbuild.include
kbuild: improve cc-option to clean up all temporary files
2020-06-30 15:38:43 -04:00
kernel-doc
scripts/kernel-doc: Don't fail with status != 0 if error encountered with -none
2018-02-25 11:05:47 +01:00
kernel-doc-xml-ref
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ld-version.sh
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Lindent
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link-vmlinux.sh
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Makefile
scripts: set proper OpenSSL include dir also for sign-file
2021-03-07 11:25:55 +01:00
Makefile.asm-generic
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Makefile.build
tracing: Avoid calling cc-option -mrecord-mcount for every Makefile
2021-02-23 13:59:17 +01:00
Makefile.clean
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Makefile.dtbinst
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Makefile.extrawarn
Makefile.extrawarn: Move -Wunaligned-access to W=1
2022-02-23 11:56:38 +01:00
Makefile.fwinst
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Makefile.gcc-plugins
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Makefile.headersinst
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Makefile.help
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Makefile.host
kbuild: Add __cc-option macro
2018-11-23 08:20:35 +01:00
Makefile.kasan
kasan: don't emit builtin calls when sanitization is off
2018-08-17 20:59:29 +02:00
Makefile.lib
kbuild: fix asm-offset generation to work with clang
2018-11-23 08:20:35 +01:00
Makefile.modbuiltin
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Makefile.modinst
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Makefile.modpost
kbuild: modpost: handle KBUILD_EXTRA_SYMBOLS only for external modules
2019-08-25 10:51:47 +02:00
Makefile.modsign
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Makefile.ubsan
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makelst
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markup_oops.pl
tweewide: Fix most Shebang lines
2021-06-03 08:23:27 +02:00
mkcompile_h
kbuild: mkcompile_h: consider timestamp if KBUILD_BUILD_TIMESTAMP is set
2021-07-28 09:14:25 +02:00
mkmakefile
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mksysmap
mksysmap: Fix the mismatch of '.L' symbols in System.map
2020-06-30 15:38:23 -04:00
mkuboot.sh
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mkversion
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module-common.lds
objtool, modules: Discard objtool annotation sections for modules
2018-01-17 09:38:58 +01:00
namespace.pl
namespace: fix namespace.pl script to support relative paths
2019-10-29 09:15:06 +01:00
objdiff
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patch-kernel
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pnmtologo.c
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profile2linkerlist.pl
tweewide: Fix most Shebang lines
2021-06-03 08:23:27 +02:00
prune-kernel
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recordmcount.c
scripts/recordmcount.{c,pl}: support -ffunction-sections .text.* section names
2021-03-17 16:10:15 +01:00
recordmcount.h
recordmcount: Fix spurious mcount entries on powerpc
2019-08-04 09:33:38 +02:00
recordmcount.pl
recordmcount.pl: fix typo in s390 mcount regex
2022-01-05 12:31:24 +01:00
setlocalversion
scripts/setlocalversion: make git describe output more reliable
2020-11-10 10:23:50 +01:00
show_delta
tweewide: Fix most Shebang lines
2021-06-03 08:23:27 +02:00
sign-file.c
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sortextable.c
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sortextable.h
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spelling.txt
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stackdelta
tweewide: Fix most Shebang lines
2021-06-03 08:23:27 +02:00
stackusage
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tags.sh
tags: honor COMPILED_SOURCE with apart output directory
2018-04-13 19:48:21 +02:00
unifdef.c
unifdef: use memcpy instead of strncpy
2018-12-08 13:05:05 +01:00
ver_linux
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xen-hypercalls.sh
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xz_wrap.sh
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