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authorJoe Perches <joe@perches.com>2019-08-05 15:11:15 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2019-08-10 12:45:37 -0700
commitbfd77145f35c3deafe57e9eb67fff4ccffdaef6e (patch)
treebab86bd5b27f5b476bda19a7d36240fb328781a9 /Makefile
parent5aa910073744e5ed6d79410d81fa44149b2deeb7 (diff)
Makefile: Convert -Wimplicit-fallthrough=3 to just -Wimplicit-fallthrough for clang
A compilation -Wimplicit-fallthrough warning was enabled by commit a035d552a93b ("Makefile: Globally enable fall-through warning") Even though clang 10.0.0 does not currently support this warning without a patch, clang currently does not support a value for this option. Link: https://bugs.llvm.org/show_bug.cgi?id=39382 The gcc default for this warning is 3 so removing the =3 has no effect for gcc and enables the warning for patched versions of clang. Also remove the =3 from an existing use in a parisc Makefile: arch/parisc/math-emu/Makefile Signed-off-by: Joe Perches <joe@perches.com> Reviewed-and-tested-by: Nathan Chancellor <natechancellor@gmail.com> Cc: Gustavo A. R. Silva <gustavo@embeddedor.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'Makefile')
-rw-r--r--Makefile2
1 files changed, 1 insertions, 1 deletions
diff --git a/Makefile b/Makefile
index 02aff718a11d..18a237743a02 100644
--- a/Makefile
+++ b/Makefile
@@ -846,7 +846,7 @@ NOSTDINC_FLAGS += -nostdinc -isystem $(shell $(CC) -print-file-name=include)
KBUILD_CFLAGS += -Wdeclaration-after-statement
# Warn about unmarked fall-throughs in switch statement.
-KBUILD_CFLAGS += $(call cc-option,-Wimplicit-fallthrough=3,)
+KBUILD_CFLAGS += $(call cc-option,-Wimplicit-fallthrough,)
# Variable Length Arrays (VLAs) should not be used anywhere in the kernel
KBUILD_CFLAGS += -Wvla

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