qemu-kvm/SOURCES/kvm-crypto-annotate-xts_twe...

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From 8e0e5d4ff6afd4e869ff1974df13b9b3003f035b Mon Sep 17 00:00:00 2001
From: "Daniel P. Berrange" <berrange@redhat.com>
Date: Wed, 24 Apr 2019 09:56:41 +0100
Subject: [PATCH 7/9] crypto: annotate xts_tweak_encdec as inlineable
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
RH-Author: Daniel P. Berrange <berrange@redhat.com>
Message-id: <20190424095643.796-8-berrange@redhat.com>
Patchwork-id: 85884
O-Subject: [RHEL-8.1.0 qemu-kvm PATCH 7/9] crypto: annotate xts_tweak_encdec as inlineable
Bugzilla: 1680231
RH-Acked-by: Philippe Mathieu-Daudé <philmd@redhat.com>
RH-Acked-by: John Snow <jsnow@redhat.com>
RH-Acked-by: Eric Blake <eblake@redhat.com>
Encouraging the compiler to inline xts_tweak_encdec increases the
performance for xts-aes-128 when built with gcrypt:
Encrypt: 545 MB/s -> 580 MB/s
Decrypt: 568 MB/s -> 602 MB/s
Reviewed-by: Alberto Garcia <berto@igalia.com>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
(cherry picked from commit aa895bd439341a8f218d8f1a3d21359ba058c13f)
Signed-off-by: Danilo C. L. de Paula <ddepaula@redhat.com>
---
crypto/xts.c | 10 +++++-----
1 file changed, 5 insertions(+), 5 deletions(-)
diff --git a/crypto/xts.c b/crypto/xts.c
index 10ec83f..4277ad4 100644
--- a/crypto/xts.c
+++ b/crypto/xts.c
@@ -81,11 +81,11 @@ static void xts_mult_x(xts_uint128 *I)
*
* Encrypt/decrypt data with a tweak
*/
-static void xts_tweak_encdec(const void *ctx,
- xts_cipher_func *func,
- const xts_uint128 *src,
- xts_uint128 *dst,
- xts_uint128 *iv)
+static inline void xts_tweak_encdec(const void *ctx,
+ xts_cipher_func *func,
+ const xts_uint128 *src,
+ xts_uint128 *dst,
+ xts_uint128 *iv)
{
/* tweak encrypt block i */
xts_uint128_xor(dst, src, iv);
--
1.8.3.1