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| author | Anton Vorontsov <anton.vorontsov@linaro.org> | 2012-07-09 17:10:46 -0700 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2012-07-17 10:15:04 -0700 |
| commit | f555f1231a69846d57099760f9c361982600ffa2 (patch) | |
| tree | ac16a48bdf0c8b516d8153919670632501103ddb /kernel/trace | |
| parent | a694d1b5916a486ce25fb5f2b39f2627f7afd5f3 (diff) | |
| download | linux-stable-f555f1231a69846d57099760f9c361982600ffa2.tar.gz linux-stable-f555f1231a69846d57099760f9c361982600ffa2.tar.bz2 linux-stable-f555f1231a69846d57099760f9c361982600ffa2.zip | |
tracing/function: Convert func_set_flag() to a switch statement
Since the function accepts just one bit, we can use the switch
construction instead of if/else if/...
Just a cosmetic change, there should be no functional changes.
Suggested-by: Steven Rostedt <rostedt@goodmis.org>
Signed-off-by: Anton Vorontsov <anton.vorontsov@linaro.org>
Acked-by: Steven Rostedt <rostedt@goodmis.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'kernel/trace')
| -rw-r--r-- | kernel/trace/trace_functions.c | 15 |
1 files changed, 9 insertions, 6 deletions
diff --git a/kernel/trace/trace_functions.c b/kernel/trace/trace_functions.c index 13770abd7a12..a426f410c060 100644 --- a/kernel/trace/trace_functions.c +++ b/kernel/trace/trace_functions.c @@ -217,10 +217,11 @@ static void tracing_stop_function_trace(void) static int func_set_flag(u32 old_flags, u32 bit, int set) { - if (bit == TRACE_FUNC_OPT_STACK) { + switch (bit) { + case TRACE_FUNC_OPT_STACK: /* do nothing if already set */ if (!!set == !!(func_flags.val & TRACE_FUNC_OPT_STACK)) - return 0; + break; if (set) { unregister_ftrace_function(&trace_ops); @@ -230,12 +231,14 @@ static int func_set_flag(u32 old_flags, u32 bit, int set) register_ftrace_function(&trace_ops); } - return 0; - } else if (bit == TRACE_FUNC_OPT_PSTORE) { - return 0; + break; + case TRACE_FUNC_OPT_PSTORE: + break; + default: + return -EINVAL; } - return -EINVAL; + return 0; } static struct tracer function_trace __read_mostly = |