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crypto: marvell - make mv_cesa_ahash_cache_req() return bool 

The mv_cesa_ahash_cache_req() function always returns 0, which makes
its return value pretty much useless. However, in addition to
returning a useless value, it also returns a boolean in a variable
passed by reference to indicate if the request was already cached.

So, this commit changes mv_cesa_ahash_cache_req() to return this
boolean. It consequently simplifies the only call site of
mv_cesa_ahash_cache_req(), where the "ret" variable is no longer
needed.

Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
This commit is contained in:
Thomas Petazzoni 2016-08-09 11:03:17 +02:00 committed by Herbert Xu
parent 3e5c66c9c3
commit 6dc156f453
1 changed files with 9 additions and 11 deletions
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20
drivers/crypto/marvell/hash.c
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@ -403,15 +403,16 @@ static inline int mv_cesa_ahash_cra_init(struct crypto_tfm *tfm)
return 0;
}
static int mv_cesa_ahash_cache_req(struct ahash_request *req, bool *cached)
static bool mv_cesa_ahash_cache_req(struct ahash_request *req)
{
struct mv_cesa_ahash_req *creq = ahash_request_ctx(req);
bool cached = false;
if (creq->cache_ptr + req->nbytes < 64 && !creq->last_req) {
*cached = true;
cached = true;
if (!req->nbytes)
return 0;
return cached;
sg_pcopy_to_buffer(req->src, creq->src_nents,
creq->cache + creq->cache_ptr,
@ -420,7 +421,7 @@ static int mv_cesa_ahash_cache_req(struct ahash_request *req, bool *cached)
creq->cache_ptr += req->nbytes;
}
return 0;
return cached;
}
static struct mv_cesa_op_ctx *
@ -665,7 +666,6 @@ static int mv_cesa_ahash_dma_req_init(struct ahash_request *req)
static int mv_cesa_ahash_req_init(struct ahash_request *req, bool *cached)
{
struct mv_cesa_ahash_req *creq = ahash_request_ctx(req);
int ret;
creq->src_nents = sg_nents_for_len(req->src, req->nbytes);
if (creq->src_nents < 0) {
@ -673,17 +673,15 @@ static int mv_cesa_ahash_req_init(struct ahash_request *req, bool *cached)
return creq->src_nents;
}
ret = mv_cesa_ahash_cache_req(req, cached);
if (ret)
return ret;
*cached = mv_cesa_ahash_cache_req(req);
if (*cached)
return 0;
if (cesa_dev->caps->has_tdma)
ret = mv_cesa_ahash_dma_req_init(req);
return ret;
return mv_cesa_ahash_dma_req_init(req);
else
return 0;
}
static int mv_cesa_ahash_queue_req(struct ahash_request *req)