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.
Signed-off-by: Tom Zanussi <tom.zanu...@linux.intel.com>
---
include/linux/ftrace.h | 4 ++--
kernel/trace/ftrace.c | 12 ++++++++++--
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 9f15c00..6062491 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 a6d098c..64f7f39 100644
--- a/kernel/trace/ftrace.c
+++ b/kernel/trace/ftrace.c
@@ -3292,7 +3292,11 @@ 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;
@@ -3311,7 +3315,11 @@ 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 2aabd34..4222c6a 100644
--- a/kernel/trace/trace.c
+++ b/kernel/trace/trace.c
@@ -5458,12 +5458,12 @@ 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)
--
1.7.11.4
--
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