From mboxrd@z Thu Jan 1 00:00:00 1970 From: Magnus Karlsson Subject: [PATCH bpf 3/4] samples/bpf: deal with EBUSY return code from sendmsg in xdpsock sample Date: Wed, 27 Jun 2018 16:02:15 +0200 Message-ID: <1530108136-4984-4-git-send-email-magnus.karlsson@intel.com> References: <1530108136-4984-1-git-send-email-magnus.karlsson@intel.com> Cc: qi.z.zhang@intel.com, pavel@fastnetmon.com To: magnus.karlsson@intel.com, bjorn.topel@intel.com, ast@fb.com, daniel@iogearbox.net, netdev@vger.kernel.org Return-path: Received: from mga12.intel.com ([192.55.52.136]:27468 "EHLO mga12.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S934391AbeF0OCl (ORCPT ); Wed, 27 Jun 2018 10:02:41 -0400 In-Reply-To: <1530108136-4984-1-git-send-email-magnus.karlsson@intel.com> Sender: netdev-owner@vger.kernel.org List-ID: 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 Reported-by: Pavel Odintsov --- 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