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bpf: Fix bpf_xdp_event_output 

Fix a typo. xdp->data instead of xdp should be copied to the perf-event's
dst_buff.

Fixes: 4de1696952 ("bpf: enable event output helper also for xdp types")
Reported-by: Huapeng Zhou <hzhou@fb.com>
Tested-by: Feixiong Zhang <feixiong@fb.com>
Acked-by: Alexei Starovoitov <ast@kernel.org>
Cc: Daniel Borkmann <daniel@iogearbox.net>
Signed-off-by: Martin KaFai Lau <kafai@fb.com>
Acked-by: Daniel Borkmann <daniel@iogearbox.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Martin KaFai Lau 2017-02-23 10:40:34 -08:00 committed by David S. Miller
parent ccaba0621a
commit 9c4713701c
1 changed files with 2 additions and 2 deletions
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4
net/core/filter.c
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@ -2584,8 +2584,8 @@ BPF_CALL_5(bpf_xdp_event_output, struct xdp_buff *, xdp, struct bpf_map *, map,
if (unlikely(xdp_size > (unsigned long)(xdp->data_end - xdp->data)))
return -EFAULT;
return bpf_event_output(map, flags, meta, meta_size, xdp, xdp_size,
bpf_xdp_copy);
return bpf_event_output(map, flags, meta, meta_size, xdp->data,
xdp_size, bpf_xdp_copy);
}
static const struct bpf_func_proto bpf_xdp_event_output_proto = {