Re: [PATCH bpf 3/4] samples/bpf: deal with EBUSY return code from sendmsg in xdpsock sample
From: Song Liu <hidden>
Date: 2018-06-27 18:21:29
On Wed, Jun 27, 2018 at 7:02 AM, Magnus Karlsson [off-list ref] wrote:
Sendmsg in the SKB path of AF_XDP can now return EBUSY when a packet
was discarded and completed by the driver. Just ignore this message
in the sample application.
Fixes: b4b8faa1ded7 ("samples/bpf: sample application and documentation for AF_XDP sockets")
Signed-off-by: Magnus Karlsson <magnus.karlsson@intel.com>
Reported-by: Pavel Odintsov <redacted>Acked-by: Song Liu <redacted>
quoted hunk ↗ jump to hunk
--- samples/bpf/xdpsock_user.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)diff --git a/samples/bpf/xdpsock_user.c b/samples/bpf/xdpsock_user.c index d69c8d78d3fd..aec3a61fac44 100644 --- a/samples/bpf/xdpsock_user.c +++ b/samples/bpf/xdpsock_user.c@@ -729,7 +729,7 @@ static void kick_tx(int fd) int ret; ret = sendto(fd, NULL, 0, MSG_DONTWAIT, NULL, 0); - if (ret >= 0 || errno == ENOBUFS || errno == EAGAIN) + if (ret >= 0 || errno == EAGAIN || errno == EBUSY) return; lassert(0); } --2.7.4