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| author | Tom Zanussi <tom.zanussi@linux.intel.com> | 2013-10-24 15:34:18 +0200 |
|---|---|---|
| committer | Steven Rostedt <rostedt@goodmis.org> | 2013-11-05 23:43:40 +0100 |
| commit | 38de93abec8d8acd8d6dbbe9b0d92d6d5cdb3090 (patch) | |
| tree | 4b7ea21748121502c7d4d8625512134651d1eb9d | |
| parent | tracing: Update event filters for multibuffer (diff) | |
| download | linux-38de93abec8d8acd8d6dbbe9b0d92d6d5cdb3090.tar.xz linux-38de93abec8d8acd8d6dbbe9b0d92d6d5cdb3090.zip | |
tracing: Make register/unregister_ftrace_command __init
register/unregister_ftrace_command() are only ever called from __init
functions, so can themselves be made __init.
Also make register_snapshot_cmd() __init for the same reason.
Link: http://lkml.kernel.org/r/d4042c8cadb7ae6f843ac9a89a24e1c6a3099727.1382620672.git.tom.zanussi@linux.intel.com
Signed-off-by: Tom Zanussi <tom.zanussi@linux.intel.com>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
| -rw-r--r-- | include/linux/ftrace.h | 4 | ||||
| -rw-r--r-- | kernel/trace/ftrace.c | 12 | ||||
| -rw-r--r-- | kernel/trace/trace.c | 4 |
3 files changed, 14 insertions, 6 deletions
diff --git a/include/linux/ftrace.h b/include/linux/ftrace.h index ec85d48619e1..31ea4b428360 100644 --- a/include/linux/ftrace.h +++ b/include/linux/ftrace.h @@ -533,11 +533,11 @@ static inline int ftrace_force_update(void) { return 0; } static inline void ftrace_disable_daemon(void) { } static inline void ftrace_enable_daemon(void) { } static inline void ftrace_release_mod(struct module *mod) {} -static inline int register_ftrace_command(struct ftrace_func_command *cmd) +static inline __init int register_ftrace_command(struct ftrace_func_command *cmd) { return -EINVAL; } -static inline int unregister_ftrace_command(char *cmd_name) +static inline __init int unregister_ftrace_command(char *cmd_name) { return -EINVAL; } diff --git a/kernel/trace/ftrace.c b/kernel/trace/ftrace.c index 080b7d41e17f..22fa55696760 100644 --- a/kernel/trace/ftrace.c +++ b/kernel/trace/ftrace.c @@ -3307,7 +3307,11 @@ void unregister_ftrace_function_probe_all(char *glob) static LIST_HEAD(ftrace_commands); static DEFINE_MUTEX(ftrace_cmd_mutex); -int register_ftrace_command(struct ftrace_func_command *cmd) +/* + * Currently we only register ftrace commands from __init, so mark this + * __init too. + */ +__init int register_ftrace_command(struct ftrace_func_command *cmd) { struct ftrace_func_command *p; int ret = 0; @@ -3326,7 +3330,11 @@ int register_ftrace_command(struct ftrace_func_command *cmd) return ret; } -int unregister_ftrace_command(struct ftrace_func_command *cmd) +/* + * Currently we only unregister ftrace commands from __init, so mark + * this __init too. + */ +__init int unregister_ftrace_command(struct ftrace_func_command *cmd) { struct ftrace_func_command *p, *n; int ret = -ENODEV; diff --git a/kernel/trace/trace.c b/kernel/trace/trace.c index 489da8b19f30..f9fa42b180e3 100644 --- a/kernel/trace/trace.c +++ b/kernel/trace/trace.c @@ -5477,12 +5477,12 @@ static struct ftrace_func_command ftrace_snapshot_cmd = { .func = ftrace_trace_snapshot_callback, }; -static int register_snapshot_cmd(void) +static __init int register_snapshot_cmd(void) { return register_ftrace_command(&ftrace_snapshot_cmd); } #else -static inline int register_snapshot_cmd(void) { return 0; } +static inline __init int register_snapshot_cmd(void) { return 0; } #endif /* defined(CONFIG_TRACER_SNAPSHOT) && defined(CONFIG_DYNAMIC_FTRACE) */ struct dentry *tracing_init_dentry_tr(struct trace_array *tr) |