[tip:x86/atomic] lib: Only test atomic64_dec_if_positive on archs having it
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From: tip-bot for Luca Barbieri on 1 Mar 2010 15:00 Commit-ID: 8f4f202b335144bf5be5c9e5b1bc9477ecdae958 Gitweb: http://git.kernel.org/tip/8f4f202b335144bf5be5c9e5b1bc9477ecdae958 Author: Luca Barbieri <luca(a)luca-barbieri.com> AuthorDate: Fri, 26 Feb 2010 12:22:40 +0100 Committer: H. Peter Anvin <hpa(a)zytor.com> CommitDate: Mon, 1 Mar 2010 11:37:55 -0800 lib: Only test atomic64_dec_if_positive on archs having it Currently atomic64_dec_if_positive() is only supported by PowerPC, MIPS and x86-32. Signed-off-by: Luca Barbieri <luca(a)luca-barbieri.com> LKML-Reference: <1267183361-20775-1-git-send-email-luca(a)luca-barbieri.com> Signed-off-by: H. Peter Anvin <hpa(a)zytor.com> --- lib/atomic64_test.c | 4 ++++ 1 files changed, 4 insertions(+), 0 deletions(-) diff --git a/lib/atomic64_test.c b/lib/atomic64_test.c index 4ff649e..0effcac 100644 --- a/lib/atomic64_test.c +++ b/lib/atomic64_test.c @@ -112,6 +112,7 @@ static __init int test_atomic64(void) r += one; BUG_ON(v.counter != r); +#if defined(CONFIG_X86_32) || defined(CONFIG_MIPS) || defined(CONFIG_PPC) || defined(_ASM_GENERIC_ATOMIC64_H) INIT(onestwos); BUG_ON(atomic64_dec_if_positive(&v) != (onestwos - 1)); r -= one; @@ -124,6 +125,9 @@ static __init int test_atomic64(void) INIT(-one); BUG_ON(atomic64_dec_if_positive(&v) != (-one - one)); BUG_ON(v.counter != r); +#else +#warning Please implement atomic64_dec_if_positive for your architecture, and add it to the IF above +#endif INIT(onestwos); BUG_ON(atomic64_inc_not_zero(&v)); -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo(a)vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/ |