From: Masami Hiramatsu <[email protected]>
Remove unneeded symbol check for --list option.
This code actually checks whether the given symbol exists in the kernel.
But this is incorrect for online kernel/module and offline module too:
- For online kernel/module, the kprobes itself already
ensured the symbol exist in the kernel.
- For offline module, this code can't access the offlined
modules. Ignore it.
Signed-off-by: Masami Hiramatsu <[email protected]>
Cc: David Ahern <[email protected]>
Cc: "David A. Long" <[email protected]>
Cc: Ingo Molnar <[email protected]>
Cc: Namhyung Kim <[email protected]>
Cc: Oleg Nesterov <[email protected]>
Cc: Srikar Dronamraju <[email protected]>
Cc: Steven Rostedt <[email protected]>
Cc: [email protected]
Link: http://lkml.kernel.org/r/20140206053206.29635.7453.stgit@kbuild-fedora.yrl.intra.hitachi.co.jp
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
---
tools/perf/util/probe-event.c | 8 --------
1 file changed, 8 deletions(-)
diff --git a/tools/perf/util/probe-event.c b/tools/perf/util/probe-event.c
index 9aa77832099a..a4649e7449c5 100644
--- a/tools/perf/util/probe-event.c
+++ b/tools/perf/util/probe-event.c
@@ -739,14 +739,6 @@ out:
static int kprobe_convert_to_perf_probe(struct probe_trace_point *tp,
struct perf_probe_point *pp)
{
- struct symbol *sym;
-
- sym = __find_kernel_function_by_name(tp->symbol, NULL);
- if (!sym) {
- pr_err("Failed to find symbol %s in kernel.\n", tp->symbol);
- return -ENOENT;
- }
-
return convert_to_perf_probe_point(tp, pp);
}
--
1.8.1.4