diff options
Diffstat (limited to 'kernel/trace/trace_functions.c')
-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) | |||
217 | 217 | ||
218 | static int func_set_flag(u32 old_flags, u32 bit, int set) | 218 | static int func_set_flag(u32 old_flags, u32 bit, int set) |
219 | { | 219 | { |
220 | if (bit == TRACE_FUNC_OPT_STACK) { | 220 | switch (bit) { |
221 | case TRACE_FUNC_OPT_STACK: | ||
221 | /* do nothing if already set */ | 222 | /* do nothing if already set */ |
222 | if (!!set == !!(func_flags.val & TRACE_FUNC_OPT_STACK)) | 223 | if (!!set == !!(func_flags.val & TRACE_FUNC_OPT_STACK)) |
223 | return 0; | 224 | break; |
224 | 225 | ||
225 | if (set) { | 226 | if (set) { |
226 | unregister_ftrace_function(&trace_ops); | 227 | unregister_ftrace_function(&trace_ops); |
@@ -230,12 +231,14 @@ static int func_set_flag(u32 old_flags, u32 bit, int set) | |||
230 | register_ftrace_function(&trace_ops); | 231 | register_ftrace_function(&trace_ops); |
231 | } | 232 | } |
232 | 233 | ||
233 | return 0; | 234 | break; |
234 | } else if (bit == TRACE_FUNC_OPT_PSTORE) { | 235 | case TRACE_FUNC_OPT_PSTORE: |
235 | return 0; | 236 | break; |
237 | default: | ||
238 | return -EINVAL; | ||
236 | } | 239 | } |
237 | 240 | ||
238 | return -EINVAL; | 241 | return 0; |
239 | } | 242 | } |
240 | 243 | ||
241 | static struct tracer function_trace __read_mostly = | 244 | static struct tracer function_trace __read_mostly = |