RDMA/irdma: Use crypto_shash_digest() in irdma_ieq_check_mpacrc()

Simplify irdma_ieq_check_mpacrc() by using crypto_shash_digest() instead
of an init+update+final sequence.  This should also improve performance.

Signed-off-by: Eric Biggers <ebiggers@google.com>
Link: https://lore.kernel.org/r/20231029045756.153943-1-ebiggers@kernel.org
Signed-off-by: Leon Romanovsky <leon@kernel.org>

diff --git a/drivers/infiniband/hw/irdma/utils.c b/drivers/infiniband/hw/irdma/utils.c
index 916bfe2a91eb22d31aedf725e3949c556fa81c75..0422787592d86ec3a7df2a601e786fa27636ebd2 100644 (file)
--- a/drivers/infiniband/hw/irdma/utils.c
+++ b/drivers/infiniband/hw/irdma/utils.c
@@ -1393,17 +1393,12 @@ int irdma_ieq_check_mpacrc(struct shash_desc *desc, void *addr, u32 len,
                           u32 val)
 {
        u32 crc = 0;
-       int ret;
-       int ret_code = 0;
 
-       crypto_shash_init(desc);
-       ret = crypto_shash_update(desc, addr, len);
-       if (!ret)
-               crypto_shash_final(desc, (u8 *)&crc);
+       crypto_shash_digest(desc, addr, len, (u8 *)&crc);
        if (crc != val)
-               ret_code = -EINVAL;
+               return -EINVAL;
 
-       return ret_code;
+       return 0;
 }
 
 /**