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ftrace: Hide cached module code for !CONFIG_MODULES 

When modules are disabled, we get a harmless build warning:

kernel/trace/ftrace.c:4051:13: error: 'process_cached_mods' defined but not used [-Werror=unused-function]

This adds the same #ifdef around the new code that exists around
its caller.

Link: http://lkml.kernel.org/r/20170710084413.1820568-1-arnd@arndb.de

Fixes: d7fbf8df7c ("ftrace: Implement cached modules tracing on module load")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
This commit is contained in:
Arnd Bergmann 2017-07-10 10:44:03 +02:00 committed by Steven Rostedt (VMware)
parent bbd1d27d86
commit 69449bbd65
1 changed files with 2 additions and 0 deletions
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2
kernel/trace/ftrace.c
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@ -3978,6 +3978,7 @@ static int
ftrace_set_regex(struct ftrace_ops *ops, unsigned char *buf, int len,
int reset, int enable);
#ifdef CONFIG_MODULES
static void process_mod_list(struct list_head *head, struct ftrace_ops *ops,
char *mod, bool enable)
{
@ -4068,6 +4069,7 @@ static void process_cached_mods(const char *mod_name)
kfree(mod);
}
#endif
/*
* We register the module command as a template to show others how