From 89ab066d4229acd32e323f1569833302544a4186 Mon Sep 17 00:00:00 2001 From: Karsten Graul Date: Tue, 23 Oct 2018 13:40:39 +0200 Subject: Revert "net: simplify sock_poll_wait" This reverts commit dd979b4df817e9976f18fb6f9d134d6bc4a3c317. This broke tcp_poll for SMC fallback: An AF_SMC socket establishes an internal TCP socket for the initial handshake with the remote peer. Whenever the SMC connection can not be established this TCP socket is used as a fallback. All socket operations on the SMC socket are then forwarded to the TCP socket. In case of poll, the file->private_data pointer references the SMC socket because the TCP socket has no file assigned. This causes tcp_poll to wait on the wrong socket. Signed-off-by: Karsten Graul Signed-off-by: David S. Miller --- net/caif/caif_socket.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'net/caif/caif_socket.c') diff --git a/net/caif/caif_socket.c b/net/caif/caif_socket.c index d18965f3291f..416717c57cd1 100644 --- a/net/caif/caif_socket.c +++ b/net/caif/caif_socket.c @@ -941,7 +941,7 @@ static __poll_t caif_poll(struct file *file, __poll_t mask; struct caifsock *cf_sk = container_of(sk, struct caifsock, sk); - sock_poll_wait(file, wait); + sock_poll_wait(file, sock, wait); mask = 0; /* exceptional events? */ -- cgit v1.2.3