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From: Ard Biesheuvel <ardb@kernel.org>
To: linux-crypto@vger.kernel.org
Cc: herbert@gondor.apana.org.au, Ard Biesheuvel <ardb@kernel.org>
Subject: [PATCH 1/2] crypto: arm64/aes-ce - really hide slower algos when faster ones are enabled
Date: Thu, 17 Dec 2020 19:55:15 +0100	[thread overview]
Message-ID: <20201217185516.26969-1-ardb@kernel.org> (raw)

Commit 69b6f2e817e5b ("crypto: arm64/aes-neon - limit exposed routines if
faster driver is enabled") intended to hide modes from the plain NEON
driver that are also implemented by the faster bit sliced NEON one if
both are enabled. However, the defined() CPP function does not detect
if the bit sliced NEON driver is enabled as a module. So instead, let's
use IS_ENABLED() here.

Fixes: 69b6f2e817e5b ("crypto: arm64/aes-neon - limit exposed routines if ...")
Signed-off-by: Ard Biesheuvel <ardb@kernel.org>
---
 arch/arm64/crypto/aes-glue.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/arch/arm64/crypto/aes-glue.c b/arch/arm64/crypto/aes-glue.c
index 34b8a89197be..cafb5b96be0e 100644
--- a/arch/arm64/crypto/aes-glue.c
+++ b/arch/arm64/crypto/aes-glue.c
@@ -55,7 +55,7 @@ MODULE_DESCRIPTION("AES-ECB/CBC/CTR/XTS using ARMv8 Crypto Extensions");
 #define aes_mac_update		neon_aes_mac_update
 MODULE_DESCRIPTION("AES-ECB/CBC/CTR/XTS using ARMv8 NEON");
 #endif
-#if defined(USE_V8_CRYPTO_EXTENSIONS) || !defined(CONFIG_CRYPTO_AES_ARM64_BS)
+#if defined(USE_V8_CRYPTO_EXTENSIONS) || !IS_ENABLED(CONFIG_CRYPTO_AES_ARM64_BS)
 MODULE_ALIAS_CRYPTO("ecb(aes)");
 MODULE_ALIAS_CRYPTO("cbc(aes)");
 MODULE_ALIAS_CRYPTO("ctr(aes)");
@@ -650,7 +650,7 @@ static int __maybe_unused xts_decrypt(struct skcipher_request *req)
 }
 
 static struct skcipher_alg aes_algs[] = { {
-#if defined(USE_V8_CRYPTO_EXTENSIONS) || !defined(CONFIG_CRYPTO_AES_ARM64_BS)
+#if defined(USE_V8_CRYPTO_EXTENSIONS) || !IS_ENABLED(CONFIG_CRYPTO_AES_ARM64_BS)
 	.base = {
 		.cra_name		= "__ecb(aes)",
 		.cra_driver_name	= "__ecb-aes-" MODE,
-- 
2.17.1


             reply	other threads:[~2020-12-17 18:56 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-12-17 18:55 Ard Biesheuvel [this message]
2020-12-17 18:55 ` [PATCH 2/2] crypto: arm64/aes-ctr - improve tail handling Ard Biesheuvel
2021-01-02 22:08   ` Herbert Xu
2021-01-02 22:08 ` [PATCH 1/2] crypto: arm64/aes-ce - really hide slower algos when faster ones are enabled Herbert Xu

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