[PATCH net-next v6 02/14] tls: Allow MSG_SPLICE_PAGES but treat it as normal sendmsg

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Allow MSG_SPLICE_PAGES to be specified to sendmsg() but treat it as normal
sendmsg for now.  This means the data will just be copied until
MSG_SPLICE_PAGES is handled.

Signed-off-by: David Howells <dhowells@xxxxxxxxxx>
cc: Chuck Lever <chuck.lever@xxxxxxxxxx>
cc: Boris Pismenny <borisp@xxxxxxxxxx>
cc: John Fastabend <john.fastabend@xxxxxxxxx>
cc: Jakub Kicinski <kuba@xxxxxxxxxx>
cc: Eric Dumazet <edumazet@xxxxxxxxxx>
cc: "David S. Miller" <davem@xxxxxxxxxxxxx>
cc: Paolo Abeni <pabeni@xxxxxxxxxx>
cc: Jens Axboe <axboe@xxxxxxxxx>
cc: Matthew Wilcox <willy@xxxxxxxxxxxxx>
cc: netdev@xxxxxxxxxxxxxxx
---
 net/tls/tls_device.c | 3 ++-
 net/tls/tls_sw.c     | 2 +-
 2 files changed, 3 insertions(+), 2 deletions(-)

diff --git a/net/tls/tls_device.c b/net/tls/tls_device.c
index a959572a816f..9ef766e41c7a 100644
--- a/net/tls/tls_device.c
+++ b/net/tls/tls_device.c
@@ -447,7 +447,8 @@ static int tls_push_data(struct sock *sk,
 	long timeo;
 
 	if (flags &
-	    ~(MSG_MORE | MSG_DONTWAIT | MSG_NOSIGNAL | MSG_SENDPAGE_NOTLAST))
+	    ~(MSG_MORE | MSG_DONTWAIT | MSG_NOSIGNAL | MSG_SENDPAGE_NOTLAST |
+	      MSG_SPLICE_PAGES))
 		return -EOPNOTSUPP;
 
 	if (unlikely(sk->sk_err))
diff --git a/net/tls/tls_sw.c b/net/tls/tls_sw.c
index 1a53c8f481e9..38acc27a0dd0 100644
--- a/net/tls/tls_sw.c
+++ b/net/tls/tls_sw.c
@@ -955,7 +955,7 @@ int tls_sw_sendmsg(struct sock *sk, struct msghdr *msg, size_t size)
 	int pending;
 
 	if (msg->msg_flags & ~(MSG_MORE | MSG_DONTWAIT | MSG_NOSIGNAL |
-			       MSG_CMSG_COMPAT))
+			       MSG_CMSG_COMPAT | MSG_SPLICE_PAGES))
 		return -EOPNOTSUPP;
 
 	ret = mutex_lock_interruptible(&tls_ctx->tx_lock);





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