ftrace: Make ftrace_modify_all_code() global for archs to use

Rename __ftrace_modify_code() to ftrace_modify_all_code() and make
it global for all archs to use. This will remove the duplication
of code, as archs that can modify code without stop_machine()
can use it directly outside of the stop_machine() call.

Signed-off-by: Steven Rostedt <rostedt@goodmis.org>

1 files changed, 13 insertions, 8 deletions

diff --git a/kernel/trace/ftrace.c b/kernel/trace/ftrace.c
index ef0826204840..3c345825cc23 100644
--- a/kernel/trace/ftrace.c
+++ b/kernel/trace/ftrace.c
@@ -1811,22 +1811,27 @@ int __weak ftrace_arch_code_modify_post_process(void)
         return 0;
 }
 
-static int __ftrace_modify_code(void *data)
+void ftrace_modify_all_code(int command)
 {
-        int *command = data;
-
-        if (*command & FTRACE_UPDATE_CALLS)
+        if (command & FTRACE_UPDATE_CALLS)
                 ftrace_replace_code(1);
-        else if (*command & FTRACE_DISABLE_CALLS)
+        else if (command & FTRACE_DISABLE_CALLS)
                 ftrace_replace_code(0);
 
-        if (*command & FTRACE_UPDATE_TRACE_FUNC)
+        if (command & FTRACE_UPDATE_TRACE_FUNC)
                 ftrace_update_ftrace_func(ftrace_trace_function);
 
-        if (*command & FTRACE_START_FUNC_RET)
+        if (command & FTRACE_START_FUNC_RET)
                 ftrace_enable_ftrace_graph_caller();
-        else if (*command & FTRACE_STOP_FUNC_RET)
+        else if (command & FTRACE_STOP_FUNC_RET)
                 ftrace_disable_ftrace_graph_caller();
+}
+
+static int __ftrace_modify_code(void *data)
+{
+        int *command = data;
+
+        ftrace_modify_all_code(*command);
 
         return 0;
 }