crypto: atmel-aes - convert to use be32_add_cpu()

Convert cpu_to_be32(be32_to_cpu(E1) + E2) to use be32_add_cpu().

Signed-off-by: Liu Shixin <liushixin2@huawei.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>

diff --git a/drivers/crypto/atmel-aes.c b/drivers/crypto/atmel-aes.c
index a6e1449..b1d2860 100644 (file)
--- a/drivers/crypto/atmel-aes.c
+++ b/drivers/crypto/atmel-aes.c
@@ -1539,7 +1539,7 @@ static int atmel_aes_gcm_length(struct atmel_aes_dev *dd)
 
        /* Write incr32(J0) into IV. */
        j0_lsw = j0[3];
-       j0[3] = cpu_to_be32(be32_to_cpu(j0[3]) + 1);
+       be32_add_cpu(&j0[3], 1);
        atmel_aes_write_block(dd, AES_IVR(0), j0);
        j0[3] = j0_lsw;