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authorTim Chen <tim.c.chen@linux.intel.com>2013-03-26 13:59:25 -0700
committerHerbert Xu <herbert@gondor.apana.org.au>2013-04-25 21:00:57 +0800
commitbf70fa9d9ee07aa175453b19a39b2b9dab602d97 (patch)
tree7c7250c9c11db90a4fc096900276b186bf50ead1 /crypto
parent8275d1aa642295edd34a11a117080384bb9d65c2 (diff)
downloadlinux-bf70fa9d9ee07aa175453b19a39b2b9dab602d97.tar.gz
crypto: sha512 - Expose generic sha512 routine to be callable from other modules
Other SHA512 routines may need to use the generic routine when FPU is not available. Signed-off-by: Tim Chen <tim.c.chen@linux.intel.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Diffstat (limited to 'crypto')
-rw-r--r--crypto/sha512_generic.c13
1 files changed, 7 insertions, 6 deletions
diff --git a/crypto/sha512_generic.c b/crypto/sha512_generic.c
index 71fcf361102..4c586209567 100644
--- a/crypto/sha512_generic.c
+++ b/crypto/sha512_generic.c
@@ -163,8 +163,8 @@ sha384_init(struct shash_desc *desc)
return 0;
}
-static int
-sha512_update(struct shash_desc *desc, const u8 *data, unsigned int len)
+int crypto_sha512_update(struct shash_desc *desc, const u8 *data,
+ unsigned int len)
{
struct sha512_state *sctx = shash_desc_ctx(desc);
@@ -197,6 +197,7 @@ sha512_update(struct shash_desc *desc, const u8 *data, unsigned int len)
return 0;
}
+EXPORT_SYMBOL(crypto_sha512_update);
static int
sha512_final(struct shash_desc *desc, u8 *hash)
@@ -215,10 +216,10 @@ sha512_final(struct shash_desc *desc, u8 *hash)
/* Pad out to 112 mod 128. */
index = sctx->count[0] & 0x7f;
pad_len = (index < 112) ? (112 - index) : ((128+112) - index);
- sha512_update(desc, padding, pad_len);
+ crypto_sha512_update(desc, padding, pad_len);
/* Append length (before padding) */
- sha512_update(desc, (const u8 *)bits, sizeof(bits));
+ crypto_sha512_update(desc, (const u8 *)bits, sizeof(bits));
/* Store state in digest */
for (i = 0; i < 8; i++)
@@ -245,7 +246,7 @@ static int sha384_final(struct shash_desc *desc, u8 *hash)
static struct shash_alg sha512_algs[2] = { {
.digestsize = SHA512_DIGEST_SIZE,
.init = sha512_init,
- .update = sha512_update,
+ .update = crypto_sha512_update,
.final = sha512_final,
.descsize = sizeof(struct sha512_state),
.base = {
@@ -257,7 +258,7 @@ static struct shash_alg sha512_algs[2] = { {
}, {
.digestsize = SHA384_DIGEST_SIZE,
.init = sha384_init,
- .update = sha512_update,
+ .update = crypto_sha512_update,
.final = sha384_final,
.descsize = sizeof(struct sha512_state),
.base = {