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authorSami Tolvanen <samitolvanen@google.com>2022-09-30 23:33:10 +0300
committerKees Cook <keescook@chromium.org>2022-10-01 17:46:05 +0300
commit2120635108b35ecad9c59c8b44f6cbdf4f98214e (patch)
tree40203cf8ee27891716c688d3dffd948cd14d593b /scripts
parent607e57c6c62c00965ae276902c166834ce73014a (diff)
downloadlinux-2120635108b35ecad9c59c8b44f6cbdf4f98214e.tar.xz
Makefile.extrawarn: Move -Wcast-function-type-strict to W=1
We enable -Wcast-function-type globally in the kernel to warn about mismatching types in function pointer casts. Compilers currently warn only about ABI incompability with this flag, but Clang 16 will enable a stricter version of the check by default that checks for an exact type match. This will be very noisy in the kernel, so disable -Wcast-function-type-strict without W=1 until the new warnings have been addressed. Cc: stable@vger.kernel.org Link: https://reviews.llvm.org/D134831 Link: https://github.com/ClangBuiltLinux/linux/issues/1724 Suggested-by: Nathan Chancellor <nathan@kernel.org> Signed-off-by: Sami Tolvanen <samitolvanen@google.com> Signed-off-by: Kees Cook <keescook@chromium.org> Link: https://lore.kernel.org/r/20220930203310.4010564-1-samitolvanen@google.com
Diffstat (limited to 'scripts')
-rw-r--r--scripts/Makefile.extrawarn1
1 files changed, 1 insertions, 0 deletions
diff --git a/scripts/Makefile.extrawarn b/scripts/Makefile.extrawarn
index 0621c39a3955..20df48637373 100644
--- a/scripts/Makefile.extrawarn
+++ b/scripts/Makefile.extrawarn
@@ -52,6 +52,7 @@ KBUILD_CFLAGS += -Wno-sign-compare
KBUILD_CFLAGS += $(call cc-disable-warning, pointer-to-enum-cast)
KBUILD_CFLAGS += -Wno-tautological-constant-out-of-range-compare
KBUILD_CFLAGS += $(call cc-disable-warning, unaligned-access)
+KBUILD_CFLAGS += $(call cc-disable-warning, cast-function-type-strict)
endif
endif