On Tue, May 3, 2011 at 17:30, Sven Eckelmann wrote: > Introduce an *_dec_not_zero operation. ÂMake this a special case of > *_add_unless because batman-adv uses atomic_dec_not_zero in different > places like re-broadcast queue or aggregation queue management. There > are other non-final patches which may also want to use this macro. > > Cc: uclinux-dist-devel@xxxxxxxxxxxxxxxxxxxx > > --- a/arch/blackfin/include/asm/atomic.h > +++ b/arch/blackfin/include/asm/atomic.h > @@ -103,6 +103,7 @@ static inline int atomic_test_mask(int mask, atomic_t *v) > c != (u); \ > }) > #define atomic_inc_not_zero(v) atomic_add_unless((v), 1, 0) > +#define atomic_dec_not_zero(v) atomic_add_unless((v), -1, 0) > > /* > * atomic_inc_and_test - increment and test no opinion on the actual idea, but for the Blackfin pieces: Acked-by: Mike Frysinger <vapier@xxxxxxxxxx> -mike
