diff options
| author | Catalin Marinas <catalin.marinas@arm.com> | 2012-07-30 23:41:09 +0200 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2012-07-31 02:25:16 +0200 |
| commit | 7463449b8287162454d7e00bf7fd2c64f72c1dc8 (patch) | |
| tree | c9dd3007ce4cd59489c0cb7b55b0240aa8bbd865 /lib | |
| parent | ext4: use memweight() (diff) | |
| download | linux-7463449b8287162454d7e00bf7fd2c64f72c1dc8.tar.xz linux-7463449b8287162454d7e00bf7fd2c64f72c1dc8.zip | |
atomic64_test: simplify the #ifdef for atomic64_dec_if_positive() test
Introduce CONFIG_ARCH_HAS_ATOMIC64_DEC_IF_POSITIVE and use this instead
of the multitude of #if defined() checks in atomic64_test.c
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Cc: Russell King <linux@arm.linux.org.uk>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Paul Mackerras <paulus@samba.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'lib')
| -rw-r--r-- | lib/Kconfig | 3 | ||||
| -rw-r--r-- | lib/atomic64_test.c | 5 |
2 files changed, 5 insertions, 3 deletions
diff --git a/lib/Kconfig b/lib/Kconfig index 8269d56dcdaa..72c1d4693068 100644 --- a/lib/Kconfig +++ b/lib/Kconfig @@ -340,6 +340,9 @@ config NLATTR config GENERIC_ATOMIC64 bool +config ARCH_HAS_ATOMIC64_DEC_IF_POSITIVE + def_bool y if GENERIC_ATOMIC64 + config LRU_CACHE tristate diff --git a/lib/atomic64_test.c b/lib/atomic64_test.c index cb99b91c3a1d..00bca223d1e1 100644 --- 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) +#ifdef CONFIG_ARCH_HAS_ATOMIC64_DEC_IF_POSITIVE INIT(onestwos); BUG_ON(atomic64_dec_if_positive(&v) != (onestwos - 1)); r -= one; @@ -129,7 +128,7 @@ static __init int test_atomic64(void) 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 +#warning Please implement atomic64_dec_if_positive for your architecture and select the above Kconfig symbol #endif INIT(onestwos); |