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crypto: atmel-sha - create function to get an Atmel SHA device 

This is a transitional patch: it creates the atmel_sha_find_dev() function,
which will be used in further patches to share the source code responsible
for finding a Atmel SHA device.

Signed-off-by: Cyrille Pitchen <cyrille.pitchen@atmel.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
This commit is contained in:
Cyrille Pitchen 2017-01-26 17:07:46 +01:00 committed by Herbert Xu
parent 379d972b81
commit 8340c7fd28
1 changed files with 11 additions and 4 deletions
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15
drivers/crypto/atmel-sha.c
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@ -260,11 +260,8 @@ static void atmel_sha_fill_padding(struct atmel_sha_reqctx *ctx, int length)
}
}
static int atmel_sha_init(struct ahash_request *req)
static struct atmel_sha_dev *atmel_sha_find_dev(struct atmel_sha_ctx *tctx)
{
struct crypto_ahash *tfm = crypto_ahash_reqtfm(req);
struct atmel_sha_ctx *tctx = crypto_ahash_ctx(tfm);
struct atmel_sha_reqctx *ctx = ahash_request_ctx(req);
struct atmel_sha_dev *dd = NULL;
struct atmel_sha_dev *tmp;
@ -281,6 +278,16 @@ static int atmel_sha_init(struct ahash_request *req)
spin_unlock_bh(&atmel_sha.lock);
return dd;
}
static int atmel_sha_init(struct ahash_request *req)
{
struct crypto_ahash *tfm = crypto_ahash_reqtfm(req);
struct atmel_sha_ctx *tctx = crypto_ahash_ctx(tfm);
struct atmel_sha_reqctx *ctx = ahash_request_ctx(req);
struct atmel_sha_dev *dd = atmel_sha_find_dev(tctx);
ctx->dd = dd;
ctx->flags = 0;