linux-kernel - [PATCH 3/3] crypto: sha3-generic - Use _

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Message-Id: <1517480520-4465-3-git-send-email-geert@linux-m68k.org>
Date:   Thu,  1 Feb 2018 11:22:00 +0100
From:   Geert Uytterhoeven <geert@...ux-m68k.org>
To:     Herbert Xu <herbert@...dor.apana.org.au>,
        "David S . Miller" <davem@...emloft.net>,
        Christopher Li <sparse@...isli.org>,
        Ard Biesheuvel <ard.biesheuvel@...aro.org>,
        Tom Lendacky <thomas.lendacky@....com>
Cc:     Arnd Bergmann <arnd@...db.de>,
        Andrew Morton <akpm@...ux-foundation.org>,
        linux-crypto@...r.kernel.org, linux-sparse@...r.kernel.org,
        linux-kernel@...r.kernel.org,
        Geert Uytterhoeven <geert@...ux-m68k.org>
Subject: [PATCH 3/3] 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@...ux-m68k.org>
---
 crypto/sha3_generic.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/crypto/sha3_generic.c b/crypto/sha3_generic.c
index a965b9d8055983af..c409cd87fea5decd 100644
--- a/crypto/sha3_generic.c
+++ b/crypto/sha3_generic.c
@@ -35,7 +35,7 @@ static const u64 keccakf_rndc[24] = {
 
 /* update the state with given number of rounds */
 
-static void __attribute__((__optimize__("O3"))) keccakf(u64 st[25])
+static void __optimize("O3") keccakf(u64 st[25])
 {
 	u64 t[5], tt, bc[5];
 	int round;
-- 
2.7.4