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samples/bpf: deal with EBUSY return code from sendmsg in xdpsock sample

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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: b4b8faa1de ("samples/bpf: sample application and documentation for AF_XDP sockets")
Signed-off-by: Magnus Karlsson <magnus.karlsson@intel.com>
Reported-by: Pavel Odintsov <pavel@fastnetmon.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
This commit is contained in:
Magnus Karlsson 2018-06-29 09:48:19 +02:00 committed by Alexei Starovoitov
parent fe58868526
commit c03079c9d9
1 changed files with 1 additions and 1 deletions
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2
samples/bpf/xdpsock_user.c
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@ -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 == ENOBUFS || errno == EAGAIN || errno == EBUSY)
return;
lassert(0);
}