From: Luc Van Oostenryck <luc.vanoostenryck@gmail.com> stable inclusion from linux-4.19.164 commit 377bd57ed7ad2417228c6969b014e868a5b90c3a -------------------------------- [ Upstream commit 5d946c5abbaf68083fa6a41824dd79e1f06286d8 ] xsk_poll() is defined as returning 'unsigned int' but the .poll method is declared as returning '__poll_t', a bitwise type. Fix this by using the proper return type and using the EPOLL constants instead of the POLL ones, as required for __poll_t. Signed-off-by: Luc Van Oostenryck <luc.vanoostenryck@gmail.com> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net> Acked-by: Björn Töpel <bjorn.topel@intel.com> Link: https://lore.kernel.org/bpf/20191120001042.30830-1-luc.vanoostenryck@gmail.c... Signed-off-by: Sasha Levin <sashal@kernel.org> Signed-off-by: Yang Yingliang <yangyingliang@huawei.com> Signed-off-by: Aichun Li <liaichun@huawei.com> reviewed-by: wangxiaopeng <wangxiaopeng7@huawei.com> Signed-off-by: Yang Yingliang <yangyingliang@huawei.com> Signed-off-by: Cheng Jian <cj.chengjian@huawei.com> --- net/xdp/xsk.c | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) diff --git a/net/xdp/xsk.c b/net/xdp/xsk.c index 9ff2ab63e639..6bb0649c028c 100644 --- a/net/xdp/xsk.c +++ b/net/xdp/xsk.c @@ -289,17 +289,17 @@ static int xsk_sendmsg(struct socket *sock, struct msghdr *m, size_t total_len) return (xs->zc) ? xsk_zc_xmit(sk) : xsk_generic_xmit(sk, m, total_len); } -static unsigned int xsk_poll(struct file *file, struct socket *sock, +static __poll_t xsk_poll(struct file *file, struct socket *sock, struct poll_table_struct *wait) { - unsigned int mask = datagram_poll(file, sock, wait); + __poll_t mask = datagram_poll(file, sock, wait); struct sock *sk = sock->sk; struct xdp_sock *xs = xdp_sk(sk); if (xs->rx && !xskq_empty_desc(xs->rx)) - mask |= POLLIN | POLLRDNORM; + mask |= EPOLLIN | EPOLLRDNORM; if (xs->tx && !xskq_full_desc(xs->tx)) - mask |= POLLOUT | POLLWRNORM; + mask |= EPOLLOUT | EPOLLWRNORM; return mask; } -- 2.25.1