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tracing: probeevent: Do not accumulate on ret variable
author
Masami Hiramatsu
<mhiramat@kernel.org>
Tue, 7 May 2019 13:55:52 +0000
(22:55 +0900)
committer
Steven Rostedt (VMware)
<rostedt@goodmis.org>
Wed, 8 May 2019 16:15:11 +0000
(12:15 -0400)
Do not accumulate strlen result on "ret" local variable, because
it is accumulated on "total" local variable for array case.
Link:
http://lkml.kernel.org/r/155723735237.9149.3192150444705457531.stgit@devnote2
Fixes:
40b53b771806
("tracing: probeevent: Add array type support")
Signed-off-by: Masami Hiramatsu <mhiramat@kernel.org>
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
kernel/trace/trace_probe_tmpl.h
patch
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diff --git
a/kernel/trace/trace_probe_tmpl.h
b/kernel/trace/trace_probe_tmpl.h
index
4737bb8
..
c30c61f
100644
(file)
--- a/
kernel/trace/trace_probe_tmpl.h
+++ b/
kernel/trace/trace_probe_tmpl.h
@@
-88,7
+88,7
@@
stage3:
/* 3rd stage: store value to buffer */
if (unlikely(!dest)) {
if (code->op == FETCH_OP_ST_STRING) {
- ret
+
= fetch_store_strlen(val + code->offset);
+ ret = fetch_store_strlen(val + code->offset);
code++;
goto array;
} else