Messages in this thread Patch in this message | | | Date | Sat, 19 Mar 2016 10:15:19 -0400 | From | Steven Rostedt <> | Subject | [for-next][PATCH 3/8] ftrace: Use kasprintf() in ftrace_profile_tracefs() |
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From: Geliang Tang <geliangtang@163.com>
Use kasprintf() instead of kmalloc() and snprintf().
Link: http://lkml.kernel.org/r/135a7bc36e51fd9eaa57124dd2140285b771f738.1458050835.git.geliangtang@163.com
Acked-by: Namhyung Kim <namhyung@kernel.org> Signed-off-by: Geliang Tang <geliangtang@163.com> Signed-off-by: Steven Rostedt <rostedt@goodmis.org> --- kernel/trace/ftrace.c | 4 +--- 1 file changed, 1 insertion(+), 3 deletions(-)
diff --git a/kernel/trace/ftrace.c b/kernel/trace/ftrace.c index d3850cbb840f..6a93faafbea4 100644 --- a/kernel/trace/ftrace.c +++ b/kernel/trace/ftrace.c @@ -1030,8 +1030,7 @@ static __init void ftrace_profile_tracefs(struct dentry *d_tracer) for_each_possible_cpu(cpu) { stat = &per_cpu(ftrace_profile_stats, cpu); - /* allocate enough for function name + cpu number */ - name = kmalloc(32, GFP_KERNEL); + name = kasprintf(GFP_KERNEL, "function%d", cpu); if (!name) { /* * The files created are permanent, if something happens @@ -1043,7 +1042,6 @@ static __init void ftrace_profile_tracefs(struct dentry *d_tracer) return; } stat->stat = function_stats; - snprintf(name, 32, "function%d", cpu); stat->stat.name = name; ret = register_stat_tracer(&stat->stat); if (ret) { -- 2.7.0
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