new helper: msg_data_left()

convert open-coded instances

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>

2 files changed, 4 insertions, 4 deletions

diff --git a/crypto/algif_hash.c b/crypto/algif_hash.c
index 0a465e0f3012..1396ad0787fc 100644
--- a/crypto/algif_hash.c
+++ b/crypto/algif_hash.c
@@ -56,8 +56,8 @@ static int hash_sendmsg(struct socket *sock, struct msghdr *msg,
 
         ctx->more = 0;
 
-        while (iov_iter_count(&msg->msg_iter)) {
-                int len = iov_iter_count(&msg->msg_iter);
+        while (msg_data_left(msg)) {
+                int len = msg_data_left(msg);
 
                 if (len > limit)
                         len = limit;
diff --git a/crypto/algif_skcipher.c b/crypto/algif_skcipher.c
index 8f903b6df299..945075292bc9 100644
--- a/crypto/algif_skcipher.c
+++ b/crypto/algif_skcipher.c
@@ -641,7 +641,7 @@ static int skcipher_recvmsg_sync(struct socket *sock, struct msghdr *msg,
         long copied = 0;
 
         lock_sock(sk);
-        while (iov_iter_count(&msg->msg_iter)) {
+        while (msg_data_left(msg)) {
                 sgl = list_first_entry(&ctx->tsgl,
                                        struct skcipher_sg_list, list);
                 sg = sgl->sg;
@@ -655,7 +655,7 @@ static int skcipher_recvmsg_sync(struct socket *sock, struct msghdr *msg,
                                 goto unlock;
                 }
 
-                used = min_t(unsigned long, ctx->used, iov_iter_count(&msg->msg_iter));
+                used = min_t(unsigned long, ctx->used, msg_data_left(msg));
 
                 used = af_alg_make_sg(&ctx->rsgl, &msg->msg_iter, used);
                 err = used;