mirror of
https://github.com/torvalds/linux.git
synced 2024-12-02 17:11:33 +00:00
3fc2579e6f
When testing in userspace, UBSAN pointed out that shifting into the sign bit is undefined behaviour. It doesn't really make sense to ask for the highest set bit of a negative value, so just turn the argument type into an unsigned int. Some architectures (eg ppc) already had it declared as an unsigned int, so I don't expect too many problems. Link: http://lkml.kernel.org/r/20181105221117.31828-1-willy@infradead.org Signed-off-by: Matthew Wilcox <willy@infradead.org> Acked-by: Thomas Gleixner <tglx@linutronix.de> Acked-by: Geert Uytterhoeven <geert@linux-m68k.org> Cc: <linux-arch@vger.kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
||
|---|---|---|
| .. | ||
| __ffs.h | ||
| __ffz.h | ||
| __fls.h | ||
| arch_hweight.h | ||
| atomic.h | ||
| const_hweight.h | ||
| find.h | ||
| fls64.h | ||
| fls.h | ||
| hweight.h | ||
| non-atomic.h | ||