>> Thu, 25 Oct 2007 12:48:29 +0100 >> [Subject: [PATCH 5/5] camellia: de-unrolling, 64bit-ization] >> Denys Vlasenko <vda.linux@xxxxxxxxxxxxxx> wrote... > On Thursday 25 October 2007 12:43, Denys Vlasenko wrote: > > Hi Hervert, > > > > Please review and maybe propagate upstream following patches. > > > > camellia5.diff > > Use alternative key setup implementation with mostly 64-bit ops > > if BITS_PER_LONG >= 64. Both much smaller and much faster. > > > > Unify camellia_en/decrypt128/256 into camellia_do_en/decrypt. > > Code was similar, with just one additional if() we can use came code. > > > > If CONFIG_CC_OPTIMIZE_FOR_SIZE is defined, > > use loop in camellia_do_en/decrypt instead of unrolled code. > > ~5% encrypt/decrypt slowdown. > > > > Replace (x & 0xff) with (u8)x, gcc is not smart enough to realize > > that it can do (x & 0xff) this way (which is smaller at least on i386). > > > > Don't do (x & 0xff) in a few places where x cannot be > 255 anyway: > > t0 = il >> 16; v = camellia_sp0222[(t1 >> 8) & 0xff]; > > il16 is u32, (thus t1 >> 8) is one byte! > > Signed-off-by: Denys Vlasenko <vda.linux@xxxxxxxxxxxxxx> > -- > vda Acked-by: Noriaki TAKAMIYA <takamiya@xxxxxxxxxxxxx> -- Noriaki TAKAMIYA - To unsubscribe from this list: send the line "unsubscribe linux-crypto" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
