From 8340c7fd28d1fc0b559c84be8f0e7413d2716fc2 Mon Sep 17 00:00:00 2001 From: Cyrille Pitchen Date: Thu, 26 Jan 2017 17:07:46 +0100 Subject: 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 Signed-off-by: Herbert Xu --- drivers/crypto/atmel-sha.c | 15 +++++++++++---- 1 file changed, 11 insertions(+), 4 deletions(-) (limited to 'drivers/crypto') diff --git a/drivers/crypto/atmel-sha.c b/drivers/crypto/atmel-sha.c index 97e34799e077..33a36e667547 100644 --- a/drivers/crypto/atmel-sha.c +++ b/drivers/crypto/atmel-sha.c @@ -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; -- cgit v1.2.3