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samples/bpf: fix bpf_perf_event_output prototype

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The commit 555c8a8623 ("bpf: avoid stack copy and use skb ctx for event output")
started using 20 of initially reserved upper 32-bits of 'flags' argument
in bpf_perf_event_output(). Adjust corresponding prototype in samples/bpf/bpf_helpers.h

Signed-off-by: Adam Barth <arb@fb.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Acked-by: Daniel Borkmann <daniel@iogearbox.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Adam Barth 2016-08-10 09:45:39 -07:00 committed by David S. Miller
parent fff8019a08
commit 05b8ad25bc
1 changed files with 3 additions and 1 deletions
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4
samples/bpf/bpf_helpers.h
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@ -37,7 +37,9 @@ static int (*bpf_clone_redirect)(void *ctx, int ifindex, int flags) =
(void *) BPF_FUNC_clone_redirect;
static int (*bpf_redirect)(int ifindex, int flags) =
(void *) BPF_FUNC_redirect;
static int (*bpf_perf_event_output)(void *ctx, void *map, int index, void *data, int size) =
static int (*bpf_perf_event_output)(void *ctx, void *map,
unsigned long long flags, void *data,
int size) =
(void *) BPF_FUNC_perf_event_output;
static int (*bpf_get_stackid)(void *ctx, void *map, int flags) =
(void *) BPF_FUNC_get_stackid;