| Message ID | 20200205045834.56795-4-maciej.fijalkowski@intel.com |
|---|---|
| State | Accepted |
| Delegated to: | BPF Maintainers |
| Headers | show |
| Series | XSK related fixes | expand |
diff --git a/samples/bpf/xdpsock_user.c b/samples/bpf/xdpsock_user.c index bab7a850e..c91e91362 100644 --- a/samples/bpf/xdpsock_user.c +++ b/samples/bpf/xdpsock_user.c @@ -788,7 +788,8 @@ static void kick_tx(struct xsk_socket_info *xsk) int ret; ret = sendto(xsk_socket__fd(xsk->xsk), NULL, 0, MSG_DONTWAIT, NULL, 0); - if (ret >= 0 || errno == ENOBUFS || errno == EAGAIN || errno == EBUSY) + if (ret >= 0 || errno == ENOBUFS || errno == EAGAIN || + errno == EBUSY || errno == ENETDOWN) return; exit_with_error(errno); }
ndo_xsk_wakeup() can return -ENETDOWN and there's no particular reason to bail the whole application out on that case. Let's check in kick_tx() whether errno was set to mentioned value and basically allow application to further process frames. Fixes: 248c7f9c0e21 ("samples/bpf: convert xdpsock to use libbpf for AF_XDP access") Reported-by: Cameron Elliott <cameron@cameronelliott.com> Acked-by: Björn Töpel <bjorn.topel@intel.com> Signed-off-by: Maciej Fijalkowski <maciej.fijalkowski@intel.com> --- samples/bpf/xdpsock_user.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-)