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| author | Herbert Xu <herbert@gondor.apana.org.au> | 2006-05-16 22:06:54 +1000 |
|---|---|---|
| committer | Herbert Xu <herbert@gondor.apana.org.au> | 2006-06-26 17:34:38 +1000 |
| commit | 43600106e32809a4dead79fec67a63e9860e3d5d (patch) | |
| tree | 20590746b98c41d6cc8b590b01cecddf9a185270 /arch/s390 | |
| parent | 8b55ba0303bb59c34fab8e015634018780491614 (diff) | |
| download | linux-43600106e32809a4dead79fec67a63e9860e3d5d.tar.gz linux-43600106e32809a4dead79fec67a63e9860e3d5d.tar.bz2 linux-43600106e32809a4dead79fec67a63e9860e3d5d.zip | |
[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')
| -rw-r--r-- | arch/s390/crypto/sha1_s390.c | 23 | ||||
| -rw-r--r-- | arch/s390/crypto/sha256_s390.c | 1 |
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) |