[Qemu-devel] [PATCH 6/6] crypto: annotate xts_tweak_encdec as inlineable

["Daniel P. Berrangé" <berrange@redhat.com>]

Encouraging the compiler to inline xts_tweak_encdec increases the
performance for xts-aes-128 when built with gcrypt:

  Encrypt: 460 MB/s -> 485 MB/s
  Decrypt: 485 MB/s -> 505 MB/s

Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
---
 crypto/xts.c | 10 +++++-----
 1 file changed, 5 insertions(+), 5 deletions(-)

diff --git a/crypto/xts.c b/crypto/xts.c
index bba3280746..02d3bc3f16 100644
--- a/crypto/xts.c
+++ b/crypto/xts.c
@@ -61,11 +61,11 @@ 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);
-- 
2.17.1