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| author | Guenter Roeck <linux@roeck-us.net> | 2016-10-07 10:40:59 -0700 |
|---|---|---|
| committer | James Hogan <james.hogan@imgtec.com> | 2016-10-07 21:35:21 +0100 |
| commit | 35d04077ad96ed33ceea2501f5a4f1eacda77218 (patch) | |
| tree | 31d9211ba81e782f85893505676e2256236805c3 /arch/metag/include | |
| parent | c8d2bc9bc39ebea8437fd974fdbc21847bb897a3 (diff) | |
| download | lwn-35d04077ad96ed33ceea2501f5a4f1eacda77218.tar.gz lwn-35d04077ad96ed33ceea2501f5a4f1eacda77218.zip | |
metag: Only define atomic_dec_if_positive conditionally
The definition of atomic_dec_if_positive() assumes that
atomic_sub_if_positive() exists, which is only the case if
metag specific atomics are used. This results in the following
build error when trying to build metag1_defconfig.
kernel/ucount.c: In function 'dec_ucount':
kernel/ucount.c:211: error:
implicit declaration of function 'atomic_sub_if_positive'
Moving the definition of atomic_dec_if_positive() into the metag
conditional code fixes the problem.
Fixes: 6006c0d8ce94 ("metag: Atomics, locks and bitops")
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: James Hogan <james.hogan@imgtec.com>
Cc: <stable@vger.kernel.org> # 3.9.x-
Diffstat (limited to 'arch/metag/include')
| -rw-r--r-- | arch/metag/include/asm/atomic.h | 3 |
1 files changed, 1 insertions, 2 deletions
diff --git a/arch/metag/include/asm/atomic.h b/arch/metag/include/asm/atomic.h index 470e365f04ea..8ff0a70865f6 100644 --- a/arch/metag/include/asm/atomic.h +++ b/arch/metag/include/asm/atomic.h @@ -39,11 +39,10 @@ #define atomic_dec(v) atomic_sub(1, (v)) #define atomic_inc_not_zero(v) atomic_add_unless((v), 1, 0) +#define atomic_dec_if_positive(v) atomic_sub_if_positive(1, v) #endif -#define atomic_dec_if_positive(v) atomic_sub_if_positive(1, v) - #include <asm-generic/atomic64.h> #endif /* __ASM_METAG_ATOMIC_H */ |