aboutsummaryrefslogtreecommitdiff
path: root/arch/s390/crypto
diff options
context:
space:
mode:
authorHerbert Xu <herbert@gondor.apana.org.au>2006-05-16 22:06:54 +1000
committerHerbert Xu <herbert@gondor.apana.org.au>2006-06-26 17:34:38 +1000
commit43600106e32809a4dead79fec67a63e9860e3d5d (patch)
tree20590746b98c41d6cc8b590b01cecddf9a185270 /arch/s390/crypto
parent8b55ba0303bb59c34fab8e015634018780491614 (diff)
downloadlinux-linaro-stable-43600106e32809a4dead79fec67a63e9860e3d5d.tar.gz
[CRYPTO] digest: Remove unnecessary zeroing during init
Various digest algorithms operate one block at a time and therefore keep a temporary buffer of partial blocks. This buffer does not need to be initialised since there is a counter which indicates what is and isn't valid in it. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Diffstat (limited to 'arch/s390/crypto')
-rw-r--r--arch/s390/crypto/sha1_s390.c23
-rw-r--r--arch/s390/crypto/sha256_s390.c1
2 files changed, 12 insertions, 12 deletions
diff --git a/arch/s390/crypto/sha1_s390.c b/arch/s390/crypto/sha1_s390.c
index 98c896b86dcd..36bb5346a8c4 100644
--- a/arch/s390/crypto/sha1_s390.c
+++ b/arch/s390/crypto/sha1_s390.c
@@ -40,19 +40,20 @@ struct crypt_s390_sha1_ctx {
u8 buffer[2 * SHA1_BLOCK_SIZE];
};
-static void
-sha1_init(void *ctx)
+static void sha1_init(void *ctx_arg)
{
- static const struct crypt_s390_sha1_ctx initstate = {
- .state = {
- 0x67452301,
- 0xEFCDAB89,
- 0x98BADCFE,
- 0x10325476,
- 0xC3D2E1F0
- },
+ struct crypt_s390_sha1_ctx *ctx = ctx_arg;
+ static const u32 initstate[5] = {
+ 0x67452301,
+ 0xEFCDAB89,
+ 0x98BADCFE,
+ 0x10325476,
+ 0xC3D2E1F0
};
- memcpy(ctx, &initstate, sizeof(initstate));
+
+ ctx->count = 0;
+ memcpy(ctx->state, &initstate, sizeof(initstate));
+ ctx->buf_len = 0;
}
static void
diff --git a/arch/s390/crypto/sha256_s390.c b/arch/s390/crypto/sha256_s390.c
index 1ec5e92b3454..2c76e7bee41c 100644
--- a/arch/s390/crypto/sha256_s390.c
+++ b/arch/s390/crypto/sha256_s390.c
@@ -44,7 +44,6 @@ static void sha256_init(void *ctx)
sctx->state[6] = 0x1f83d9ab;
sctx->state[7] = 0x5be0cd19;
sctx->count = 0;
- memset(sctx->buf, 0, sizeof(sctx->buf));
}
static void sha256_update(void *ctx, const u8 *data, unsigned int len)