On Tue, 17 Jul 2012 18:10:48 +0100 Catalin Marinas <[email protected]> wrote:
> This patch introduces CONFIG_ARCH_HAS_ATOMIC64_DEC_IF_POSITIVE and uses > this instead of the multitude of #if defined() checks in atomic64_test.c > > ... > > --- a/lib/atomic64_test.c > +++ b/lib/atomic64_test.c > @@ -114,8 +114,7 @@ static __init int test_atomic64(void) > r += one; > BUG_ON(v.counter != r); > > -#if defined(CONFIG_X86) || defined(CONFIG_MIPS) || defined(CONFIG_PPC) || \ > - defined(CONFIG_S390) || defined(_ASM_GENERIC_ATOMIC64_H) || > defined(CONFIG_ARM) ugh, good riddance. > +#ifdef CONFIG_ARCH_HAS_ATOMIC64_DEC_IF_POSITIVE The alternative way of doing this is to do #define atomic64_dec_if_positive atomic64_dec_if_positive in all the relevant .h files, then use #ifdef atomic64_dec_if_positive. That's rather nice because it keeps everything in one place. otoh it is rather unobvious trickery. But either way is better than what we have now. -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
