lkml.org 
[lkml]   [2014]   [Feb]   [6]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
Subject[PATCH -tip v3 02/11] [CLEANUP] perf-probe: Remove incorrect symbol check for --list
From
Date
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 <masami.hiramatsu.pt@hitachi.com>
---
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 9aa7783..a4649e7 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);
}




\
 
 \ /
  Last update: 2014-02-06 08:01    [W:0.173 / U:0.376 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site