diff options
| author | Masahiro Yamada <masahiroy@kernel.org> | 2024-03-06 21:47:09 +0900 |
|---|---|---|
| committer | Masahiro Yamada <masahiroy@kernel.org> | 2024-03-11 17:31:41 +0900 |
| commit | 44929bfaceaaa6a854ddc6df6de9433fab1eef92 (patch) | |
| tree | ba14570c5c064a0df800b1496896fc8ac10133f4 /scripts/Makefile.extrawarn | |
| parent | e2bad142bb3de836c5fbb3dff704578f5a73d8e6 (diff) | |
kbuild: remove GCC's default -Wpacked-bitfield-compat flag
Commit 4a5838ad9d2d ("kbuild: Add extra gcc checks") added the
-Wpacked-bitfield-compat flag, but there is no need to add it
explicitly.
GCC manual says:
"This warning is enabled by default. Use -Wno-packed-bitfield-compat
to disable this warning."
The test code in the manual:
struct foo
{
char a:4;
char b:8;
} __attribute__ ((packed));
... emits "note: offset of packed bit-field ‘b’ has changed in GCC 4.4"
without W=3.
Let's remove it, as it is a default with GCC.
Clang does not support this flag, so its removal will not affect Clang
builds.
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Reviewed-by: Nathan Chancellor <nathan@kernel.org>
Diffstat (limited to 'scripts/Makefile.extrawarn')
| -rw-r--r-- | scripts/Makefile.extrawarn | 1 |
1 files changed, 0 insertions, 1 deletions
diff --git a/scripts/Makefile.extrawarn b/scripts/Makefile.extrawarn index 2f25a1de129d..3ce5d503a6da 100644 --- a/scripts/Makefile.extrawarn +++ b/scripts/Makefile.extrawarn @@ -187,7 +187,6 @@ KBUILD_CFLAGS += -Wpointer-arith KBUILD_CFLAGS += -Wredundant-decls KBUILD_CFLAGS += -Wsign-compare KBUILD_CFLAGS += -Wswitch-default -KBUILD_CFLAGS += $(call cc-option, -Wpacked-bitfield-compat) KBUILD_CPPFLAGS += -DKBUILD_EXTRA_WARN3 |