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| author | Steffen Klassert <steffen.klassert@secunet.com> | 2010-11-22 11:26:54 +0100 |
|---|---|---|
| committer | Herbert Xu <herbert@gondor.apana.org.au> | 2010-12-02 07:47:16 +0100 |
| commit | c920fa6051c1e7eb3733eaefd01e5bcdddb3d4c8 (patch) | |
| tree | 6f65fd0889e9aa836bf39c953cae3071628ed2df /crypto/gcm.c | |
| parent | crypto: scatterwalk - Add scatterwalk_crypto_chain helper (diff) | |
| download | linux-c920fa6051c1e7eb3733eaefd01e5bcdddb3d4c8.tar.xz linux-c920fa6051c1e7eb3733eaefd01e5bcdddb3d4c8.zip | |
crypto: Use scatterwalk_crypto_chain
Use scatterwalk_crypto_chain in favor of locally defined chaining functions.
Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Diffstat (limited to 'crypto/gcm.c')
| -rw-r--r-- | crypto/gcm.c | 19 |
1 files changed, 2 insertions, 17 deletions
diff --git a/crypto/gcm.c b/crypto/gcm.c index 2f5fbba6576c..1a252639ef91 100644 --- a/crypto/gcm.c +++ b/crypto/gcm.c @@ -1102,21 +1102,6 @@ static int crypto_rfc4543_setauthsize(struct crypto_aead *parent, return crypto_aead_setauthsize(ctx->child, authsize); } -/* this is the same as crypto_authenc_chain */ -static void crypto_rfc4543_chain(struct scatterlist *head, - struct scatterlist *sg, int chain) -{ - if (chain) { - head->length += sg->length; - sg = scatterwalk_sg_next(sg); - } - - if (sg) - scatterwalk_sg_chain(head, 2, sg); - else - sg_mark_end(head); -} - static struct aead_request *crypto_rfc4543_crypt(struct aead_request *req, int enc) { @@ -1154,13 +1139,13 @@ static struct aead_request *crypto_rfc4543_crypt(struct aead_request *req, sg_init_table(payload, 2); sg_set_buf(payload, req->iv, 8); - crypto_rfc4543_chain(payload, dst, vdst == req->iv + 8); + scatterwalk_crypto_chain(payload, dst, vdst == req->iv + 8, 2); assoclen += 8 + req->cryptlen - (enc ? 0 : authsize); sg_init_table(assoc, 2); sg_set_page(assoc, sg_page(req->assoc), req->assoc->length, req->assoc->offset); - crypto_rfc4543_chain(assoc, payload, 0); + scatterwalk_crypto_chain(assoc, payload, 0, 2); aead_request_set_tfm(subreq, ctx->child); aead_request_set_callback(subreq, req->base.flags, req->base.complete, |