crypto: sha3-generic - Use __optimize to support old compilers

With gcc-4.1.2:

    crypto/sha3_generic.c:39: warning: ‘__optimize__’ attribute directive ignored

Use the newly introduced __optimize macro to fix this.

Fixes: 83dee2ce1ae791c3 ("crypto: sha3-generic - rewrite KECCAK transform to help the compiler optimize")
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Acked-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>

diff --git a/crypto/sha3_generic.c b/crypto/sha3_generic.c
index 951c4eb..ded1487 100644 (file)
--- a/crypto/sha3_generic.c
+++ b/crypto/sha3_generic.c
@@ -152,7 +152,7 @@ static SHA3_INLINE void keccakf_round(u64 st[25])
        st[24] ^= bc[ 4];
 }
 
-static void __attribute__((__optimize__("O3"))) keccakf(u64 st[25])
+static void __optimize("O3") keccakf(u64 st[25])
 {
        int round;