commit 4a5cdc604b9cf645e6fa24d8d9f055955c3c8516
author Valentin Vidic <vvidic@valentin-vidic.from.hr> Thu Dec 05 07:41:18 2019 +0100
committer David S. Miller <davem@davemloft.net> Fri Dec 06 20:15:39 2019 -0800
tree fbf990cba5f852a84307f6cbbba7a4c08e344a5b
parent 1af66221a66de080274540a5c481ddacbe3574d2

net/tls: Fix return values to avoid ENOTSUPP

ENOTSUPP is not available in userspace, for example:

  setsockopt failed, 524, Unknown error 524

Signed-off-by: Valentin Vidic <vvidic@valentin-vidic.from.hr>
Acked-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

net/tls/tls_sw.c

diff --git a/net/tls/tls_sw.c b/net/tls/tls_sw.c
index 2b2d0ba..c6803a8 100644
--- a/net/tls/tls_sw.c
+++ b/net/tls/tls_sw.c
@@ -905,7 +905,7 @@ int tls_sw_sendmsg(struct sock *sk, struct msghdr *msg, size_t size)
 	int ret = 0;
 
 	if (msg->msg_flags & ~(MSG_MORE | MSG_DONTWAIT | MSG_NOSIGNAL))
-		return -ENOTSUPP;
+		return -EOPNOTSUPP;
 
 	mutex_lock(&tls_ctx->tx_lock);
 	lock_sock(sk);
@@ -1220,7 +1220,7 @@ int tls_sw_sendpage_locked(struct sock *sk, struct page *page,
 	if (flags & ~(MSG_MORE | MSG_DONTWAIT | MSG_NOSIGNAL |
 		      MSG_SENDPAGE_NOTLAST | MSG_SENDPAGE_NOPOLICY |
 		      MSG_NO_SHARED_FRAGS))
-		return -ENOTSUPP;
+		return -EOPNOTSUPP;
 
 	return tls_sw_do_sendpage(sk, page, offset, size, flags);
 }
@@ -1233,7 +1233,7 @@ int tls_sw_sendpage(struct sock *sk, struct page *page,
 
 	if (flags & ~(MSG_MORE | MSG_DONTWAIT | MSG_NOSIGNAL |
 		      MSG_SENDPAGE_NOTLAST | MSG_SENDPAGE_NOPOLICY))
-		return -ENOTSUPP;
+		return -EOPNOTSUPP;
 
 	mutex_lock(&tls_ctx->tx_lock);
 	lock_sock(sk);
@@ -1932,7 +1932,7 @@ ssize_t tls_sw_splice_read(struct socket *sock,  loff_t *ppos,
 
 		/* splice does not support reading control messages */
 		if (ctx->control != TLS_RECORD_TYPE_DATA) {
-			err = -ENOTSUPP;
+			err = -EINVAL;
 			goto splice_read_end;
 		}