4.9-stable review patch. If anyone has any objections, please let me know.
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From: Linus Torvalds <torvalds@xxxxxxxxxxxxxxxxxxxx>
commit 6d53cefb18e4646fb4bf62ccb6098fb3808486df upstream.
Commit abb2ea7dfd82 ("compiler, clang: suppress warning for unused
static inline functions") just caused more warnings due to re-defining
the 'inline' macro.
So undef it before re-defining it, and also add the 'notrace' attribute
like the gcc version that this is overriding does.
Maybe this makes clang happier.
Signed-off-by: Linus Torvalds <torvalds@xxxxxxxxxxxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
include/linux/compiler-clang.h | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
--- a/include/linux/compiler-clang.h
+++ b/include/linux/compiler-clang.h
@@ -21,7 +21,8 @@
* -Wunused-function. This turns out to avoid the need for complex #ifdef
* directives. Suppress the warning in clang as well.
*/
-#define inline inline __attribute__((unused))
+#undef inline
+#define inline inline __attribute__((unused)) notrace
/* Clang doesn't have a way to turn it off per-function, yet. */
#ifdef __noretpoline
