From: Nicolas Pitre Date: Fri, 28 Oct 2005 14:26:40 +0000 (+0100) Subject: [ARM] 2930/1: optimized sha1 implementation for ARM X-Git-Tag: v2.6.15-rc1~732^2^2~11^2~22 X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=c09f98271f685af349d3f0199360f1c0e85550e0;p=pandora-kernel.git [ARM] 2930/1: optimized sha1 implementation for ARM Patch from Nicolas Pitre Here's an ARM assembly SHA1 implementation to replace the default C version. It is approximately 50% faster than the generic C version. On an XScale processor running at 400MHz: generic C version: 9.8 MB/s my version: 14.5 MB/s This code is useful to quite a few callers in the tree: crypto/sha1.c: sha_transform(sctx->state, sctx->buffer, temp); crypto/sha1.c: sha_transform(sctx->state, &data[i], temp); drivers/char/random.c: sha_transform(buf, (__u8 *)r->pool+i, buf + 5); drivers/char/random.c: sha_transform(buf, (__u8 *)data, buf + 5); net/ipv4/syncookies.c: sha_transform(tmp + 16, (__u8 *)tmp, tmp + 16 + 5); Signed-off-by: Nicolas Pitre Seems to work fine on big-endian as well. Signed-off-by: Lennert Buytenhek Signed-off-by: Russell King --- Reading git-diff-tree failed