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SubjectRe: [PATCH] Makefile: use -Wno-main in the full kernel tree
On Fri, Aug 13, 2021 at 2:01 PM Linus Torvalds
<torvalds@linux-foundation.org> wrote:
>
> From a quick google, it seems like '-Wmain' means something else for
> clang. But it is probably ok.

So the warnings that clang gives with -Wmain seem to be much more reasonable.

Which makes me think that the '-Wno-main' thing would likely be better
as a gcc-only thing.

Maybe something like this instead?

Linus
Makefile | 2 ++
1 file changed, 2 insertions(+)

diff --git a/Makefile b/Makefile
index c19d1638da25..a33fba083df7 100644
--- a/Makefile
+++ b/Makefile
@@ -803,6 +803,8 @@ else
# Disabled for clang while comment to attribute conversion happens and
# https://github.com/ClangBuiltLinux/linux/issues/636 is discussed.
KBUILD_CFLAGS += $(call cc-option,-Wimplicit-fallthrough=5,)
+# gcc inanely warns about local variables called 'main'
+KBUILD_CFLAGS += -Wno-main
endif

# These warnings generated too much noise in a regular build.
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