Patches start from 5 because pathches 1..4 are already
in cryptodev-2.6.
camellia5:
Remove unused macro params.
Use (u8)(expr) instead of (expr) & 0xff,
helps gcc to realize how to use simpler commands.
Move CAMELLIA_FLS macro closer to encrypt/decrypt routines.
camellia6:
unifies encrypt/decrypt routines for different key lengths.
This reduces module size by ~25%, with tiny (less than 1%)
speed impact.
Also collapses encrypt/decrypt into more readable
(visually shorter) form using macros.
camellia7:
Move "key XOR is end of F-function" code part into
camellia_setup_tail(), it is sufficiently similar
between camellia_setup128 and camellia_setup256.
camellia8:
Analogously to camellia7 patch, move
"absorb kw2 to other subkeys" and "absorb kw4 to other subkeys"
code parts into camellia_setup_tail(). This further reduces
source and object code size at the cost of two brances
in key setup code.
camellia9:
Adds 64-bit key setup, it is used if BITS_PER_LONG is 64.
30% faster key setup and 1k (7%) smaller module on amd64.
Code sizes:
64-bit:
dec hex filename
22786 5902 2.6.23.1.camellia4.t64/crypto/camellia.o
15670 3d36 2.6.23.1.camellia9.t64/crypto/camellia.o
32-bit:
29948 74fc 2.6.23.1.camellia4.t/crypto/camellia.o
18454 4816 2.6.23.1.camellia9.t/crypto/camellia.o
These patches apply cleanly to current cryptodev-2.6.
They should be applied in order.
Signed-off-by: Denys Vlasenko <vda.linux@xxxxxxxxxxxxxx>
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