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| author | Alexei Starovoitov <ast@fb.com> | 2016-04-07 03:43:27 +0200 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2016-04-08 03:04:26 +0200 |
| commit | 9940d67c93b5bb7ddcf862b41b1847cb728186c4 (patch) | |
| tree | e5b9a36df5bc8bde9b7435cda796d2cefe686e45 /kernel/bpf/stackmap.c | |
| parent | bpf: register BPF_PROG_TYPE_TRACEPOINT program type (diff) | |
| download | linux-9940d67c93b5bb7ddcf862b41b1847cb728186c4.tar.xz linux-9940d67c93b5bb7ddcf862b41b1847cb728186c4.zip | |
bpf: support bpf_get_stackid() and bpf_perf_event_output() in tracepoint programs
needs two wrapper functions to fetch 'struct pt_regs *' to convert
tracepoint bpf context into kprobe bpf context to reuse existing
helper functions
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'kernel/bpf/stackmap.c')
| -rw-r--r-- | kernel/bpf/stackmap.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/kernel/bpf/stackmap.c b/kernel/bpf/stackmap.c index 499d9e933f8e..35114725cf30 100644 --- a/kernel/bpf/stackmap.c +++ b/kernel/bpf/stackmap.c @@ -116,7 +116,7 @@ free_smap: return ERR_PTR(err); } -static u64 bpf_get_stackid(u64 r1, u64 r2, u64 flags, u64 r4, u64 r5) +u64 bpf_get_stackid(u64 r1, u64 r2, u64 flags, u64 r4, u64 r5) { struct pt_regs *regs = (struct pt_regs *) (long) r1; struct bpf_map *map = (struct bpf_map *) (long) r2; |