diff options
| author | Masami Hiramatsu (Google) <mhiramat@kernel.org> | 2023-06-06 21:39:55 +0900 |
|---|---|---|
| committer | Masami Hiramatsu (Google) <mhiramat@kernel.org> | 2023-06-06 21:39:55 +0900 |
| commit | 30460c21ed40a10bf541c4e93ba5e80bb4aac5da (patch) | |
| tree | f13307baf7e1ad6b8dff226bba4dd73a6ff3cf65 /kernel/trace/trace_kprobe.c | |
| parent | cb16330d12741f6dae56aad5acf62f5be3a06c4e (diff) | |
tracing/probes: Avoid setting TPARG_FL_FENTRY and TPARG_FL_RETURN
When parsing a kprobe event, the return probe always sets both
TPARG_FL_RETURN and TPARG_FL_FENTRY, but this is not useful because
some fetchargs are only for return probe and some others only for
function entry. Make it obviously mutual exclusive.
Link: https://lore.kernel.org/all/168507468731.913472.11354553441385410734.stgit@mhiramat.roam.corp.google.com/
Signed-off-by: Masami Hiramatsu (Google) <mhiramat@kernel.org>
Diffstat (limited to 'kernel/trace/trace_kprobe.c')
| -rw-r--r-- | kernel/trace/trace_kprobe.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/kernel/trace/trace_kprobe.c b/kernel/trace/trace_kprobe.c index 59cda19a9033..867ffb7ee31d 100644 --- a/kernel/trace/trace_kprobe.c +++ b/kernel/trace/trace_kprobe.c @@ -825,7 +825,7 @@ static int __trace_kprobe_create(int argc, const char *argv[]) if (is_return) flags |= TPARG_FL_RETURN; ret = kprobe_on_func_entry(NULL, symbol, offset); - if (ret == 0) + if (ret == 0 && !is_return) flags |= TPARG_FL_FENTRY; /* Defer the ENOENT case until register kprobe */ if (ret == -EINVAL && is_return) { |