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crypto: api - Optimise away crypto_yield when hard preemption is on 

When hard preemption is enabled there is no need to explicitly
call crypto_yield.  This patch eliminates it if that is the case.

Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
This commit is contained in:
Herbert Xu 2016-07-12 13:17:56 +08:00
parent 85eccddee4
commit 4140139734
1 changed files with 2 additions and 0 deletions
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2
include/crypto/algapi.h
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@ -442,8 +442,10 @@ static inline int crypto_memneq(const void *a, const void *b, size_t size)
static inline void crypto_yield(u32 flags) static inline void crypto_yield(u32 flags)
{ {
#if !defined(CONFIG_PREEMPT) || defined(CONFIG_PREEMPT_VOLUNTARY)
if (flags & CRYPTO_TFM_REQ_MAY_SLEEP) if (flags & CRYPTO_TFM_REQ_MAY_SLEEP)
cond_resched(); cond_resched();
#endif
} }
#endif /* _CRYPTO_ALGAPI_H */ #endif /* _CRYPTO_ALGAPI_H */