Commit 9add850c authored by Andrew Morton's avatar Andrew Morton Committed by Linus Torvalds

include/linux/compiler-gcc.h: improve __visible documentation

Cc: Andi Kleen <andi@firstfloor.org>
Signed-off-by: default avatarAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
parent 54708d28
......@@ -205,7 +205,10 @@
#if GCC_VERSION >= 40600
/*
* Tell the optimizer that something else uses this function or variable.
* When used with Link Time Optimization, gcc can optimize away C functions or
* variables which are referenced only from assembly code. __visible tells the
* optimizer that something else uses this function or variable, thus preventing
* this.
*/
#define __visible __attribute__((externally_visible))
#endif
......
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