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>
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@ -260,11 +260,8 @@ static void atmel_sha_fill_padding(struct atmel_sha_reqctx *ctx, int length)
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}
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}
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static int atmel_sha_init(struct ahash_request *req)
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static struct atmel_sha_dev *atmel_sha_find_dev(struct atmel_sha_ctx *tctx)
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{
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struct crypto_ahash *tfm = crypto_ahash_reqtfm(req);
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struct atmel_sha_ctx *tctx = crypto_ahash_ctx(tfm);
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struct atmel_sha_reqctx *ctx = ahash_request_ctx(req);
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struct atmel_sha_dev *dd = NULL;
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struct atmel_sha_dev *tmp;
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@ -281,6 +278,16 @@ static int atmel_sha_init(struct ahash_request *req)
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spin_unlock_bh(&atmel_sha.lock);
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return dd;
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}
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static int atmel_sha_init(struct ahash_request *req)
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{
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struct crypto_ahash *tfm = crypto_ahash_reqtfm(req);
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struct atmel_sha_ctx *tctx = crypto_ahash_ctx(tfm);
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struct atmel_sha_reqctx *ctx = ahash_request_ctx(req);
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struct atmel_sha_dev *dd = atmel_sha_find_dev(tctx);
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ctx->dd = dd;
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ctx->flags = 0;
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