Messages in this thread | | | Date | Wed, 4 Jun 2014 12:55:29 +0200 | Subject | Re: [PATCH 0/10] use safer test on the result of find_first_zero_bit | From | Geert Uytterhoeven <> |
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Hi Julia,
On Wed, Jun 4, 2014 at 11:52 AM, Julia Lawall <julia.lawall@lip6.fr> wrote: >> Maybe the documented return code should be changed to allow for the >> existing behaviour. > > Sorry, I'm not sure to understand what you suggest here.
include/asm-generic/bitops/find.h:
| /** | * find_first_zero_bit - find the first cleared bit in a memory region | * @addr: The address to start the search at | * @size: The maximum number of bits to search | * | * Returns the bit number of the first cleared bit. | * If no bits are zero, returns @size.
"If no bits are zero, returns @size or a number larger than @size."
| */ | extern unsigned long find_first_zero_bit(const unsigned long *addr, | unsigned long size);
Gr{oetje,eeting}s,
Geert
-- Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@linux-m68k.org
In personal conversations with technical people, I call myself a hacker. But when I'm talking to journalists I just say "programmer" or something like that. -- Linus Torvalds
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