On 5 October 2017 at 09:58, Mathias Krause <mini...@googlemail.com> wrote: > On 5 October 2017 at 09:38, Borislav Petkov <b...@alien8.de> wrote: >> On Wed, Oct 04, 2017 at 08:08:12PM +0200, Mathias Krause wrote: >>> diff --git a/arch/x86/include/asm/alternative.h >>> b/arch/x86/include/asm/alternative.h >>> index c096624137ae..7c553f48f163 100644 >>> --- a/arch/x86/include/asm/alternative.h >>> +++ b/arch/x86/include/asm/alternative.h >>> @@ -106,9 +106,9 @@ static inline int alternatives_text_reserved(void >>> *start, void *end) >>> * max without conditionals. Idea adapted from: >> ^^^^^^^^^^^^^^^^^^^^^^^^^ >> >> You did read this part, right?
Oh, btw., quoting its counter part from arch/x86/include/asm/alternative-asm.h: /* * max without conditionals. Idea adapted from: * http://graphics.stanford.edu/~seander/bithacks.html#IntegerMinOrMax */ #define alt_max_short(a, b) ((a) ^ (((a) ^ (b)) & -(-((a) < (b))))) Note the "<"! ...comment is wrong, though the implementation works! Cheers, Mathias
