The patch titled
Subject: compiler-gcc: hide COMPILER_HAS_GENERIC_BUILTIN_OVERFLOW from sparse
has been added to the -mm tree. Its filename is
compiler-gcc-hide-compiler_has_generic_builtin_overflow-from-sparse.patch
This patch should soon appear at
http://ozlabs.org/~akpm/mmots/broken-out/compiler-gcc-hide-compiler_has_generic_builtin_overflow-from-sparse.patch
and later at
http://ozlabs.org/~akpm/mmotm/broken-out/compiler-gcc-hide-compiler_has_generic_builtin_overflow-from-sparse.patch
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------------------------------------------------------
From: Johannes Berg <johannes.berg@xxxxxxxxx>
Subject: compiler-gcc: hide COMPILER_HAS_GENERIC_BUILTIN_OVERFLOW from sparse
Sparse doesn't support all the overflow builtins, so just hide them from
it to avoid lots of warnings/errors reported by it.
We could try to teach them to sparse, but the passed types are variable,
and sparse doesn't seem to handle that well.
Link: http://lkml.kernel.org/r/20181109093534.15121-1-johannes@xxxxxxxxxxxxxxxx
Signed-off-by: Johannes Berg <johannes.berg@xxxxxxxxx>
Reviewed-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
include/linux/compiler-gcc.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- a/include/linux/compiler-gcc.h~compiler-gcc-hide-compiler_has_generic_builtin_overflow-from-sparse
+++ a/include/linux/compiler-gcc.h
@@ -143,7 +143,7 @@
#define KASAN_ABI_VERSION 3
#endif
-#if GCC_VERSION >= 50100
+#if GCC_VERSION >= 50100 && !defined(__CHECKER__)
#define COMPILER_HAS_GENERIC_BUILTIN_OVERFLOW 1
#endif
_
Patches currently in -mm which might be from johannes.berg@xxxxxxxxx are
compiler-gcc-hide-compiler_has_generic_builtin_overflow-from-sparse.patch
kernelh-hide-__is_constexpr-from-sparse.patch
