On Tue, Jan 25, 2005 at 10:49:01PM +0200, Denis Vlasenko wrote: > On Friday 21 January 2005 23:41, Matt Mackall wrote: > > +static void sha_transform(__u32 digest[5], const char *data, __u32 W[80]) > > { > > - __u32 A, B, C, D, E; /* Local vars */ > > + __u32 A, B, C, D, E; > > __u32 TEMP; > > int i; > > -#define W (digest + HASH_BUFFER_SIZE) /* Expanded data array */ > > > > + memset(W, 0, sizeof(W)); > > Hmm..... Parameter decays into pointer, sizeof(W) != 80*4. See:
Good spotting. > In light of this, if your sha1 passed regression tests, > I conclude that we don't need that memset at all. Indeed, I noticed it was superfluous when I was benchmarking it. The entire function is replaced a couple patches later. -- Mathematics is the supreme nostalgia of our time. - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/