diff options
author | Kevin Hilman <khilman@linaro.org> | 2013-12-20 08:59:04 -0800 |
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committer | Kevin Hilman <khilman@linaro.org> | 2013-12-20 08:59:30 -0800 |
commit | 490b929d42d2a321887f9538a83fc9f215675f15 (patch) | |
tree | 04fe7161f92c568839605f92c8f1c8730216f739 /include/crypto/algapi.h | |
parent | 23621799f24c3c4e8e8dcdf5fdeb3ebd2be148f9 (diff) | |
parent | ef43eff3447f30b4a3cfc61813902c2e57c20245 (diff) |
Merge branch 'efm32/soc' into next/soc
From Uwe Kleine-König:
* efm32/soc: (1003 commits)
ARM: device trees for Energy Micro's EFM32 Cortex-M3 SoCs
ARM: new platform for Energy Micro's EFM32 Cortex-M3 SoCs
+Linux 3.13-rc4
Signed-off-by: Kevin Hilman <khilman@linaro.org>
Diffstat (limited to 'include/crypto/algapi.h')
-rw-r--r-- | include/crypto/algapi.h | 18 |
1 files changed, 17 insertions, 1 deletions
diff --git a/include/crypto/algapi.h b/include/crypto/algapi.h index 418d270e1806..e73c19e90e38 100644 --- a/include/crypto/algapi.h +++ b/include/crypto/algapi.h @@ -386,5 +386,21 @@ static inline int crypto_requires_sync(u32 type, u32 mask) return (type ^ CRYPTO_ALG_ASYNC) & mask & CRYPTO_ALG_ASYNC; } -#endif /* _CRYPTO_ALGAPI_H */ +noinline unsigned long __crypto_memneq(const void *a, const void *b, size_t size); + +/** + * crypto_memneq - Compare two areas of memory without leaking + * timing information. + * + * @a: One area of memory + * @b: Another area of memory + * @size: The size of the area. + * + * Returns 0 when data is equal, 1 otherwise. + */ +static inline int crypto_memneq(const void *a, const void *b, size_t size) +{ + return __crypto_memneq(a, b, size) != 0UL ? 1 : 0; +} +#endif /* _CRYPTO_ALGAPI_H */ |