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authorRichard Henderson <richard.henderson@linaro.org>2020-08-28 10:05:08 -0700
committerDaniel P. Berrangé <berrange@redhat.com>2020-09-10 11:02:23 +0100
commiteba29771c006d6a689e946fa57334a2ce370c45c (patch)
treeb2a2a6559e18f89dabbea68cc124875956b7a37d /crypto/cipher.c
parentca04c3cf15961e4a01c729a24b00bf804f59ac23 (diff)
crypto: Assume blocksize is a power of 2
The check in the encode/decode path using full division has a noticeable amount of overhead. By asserting the blocksize is a power of 2, we can reduce this check to a mask. Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
Diffstat (limited to 'crypto/cipher.c')
-rw-r--r--crypto/cipher.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/crypto/cipher.c b/crypto/cipher.c
index e5adb56271..2722dc7d87 100644
--- a/crypto/cipher.c
+++ b/crypto/cipher.c
@@ -19,6 +19,7 @@
*/
#include "qemu/osdep.h"
+#include "qemu/host-utils.h"
#include "qapi/error.h"
#include "crypto/cipher.h"
#include "cipherpriv.h"