Commit 045e269c authored by Alex Shi's avatar Alex Shi Committed by Steven Rostedt (VMware)
Browse files

ftrace: Remove unused varible 'ret' 

'ret' in 2 functions are not used. and one of them is a void function.
So remove them to avoid gcc warning:
kernel/trace/ftrace.c:4166:6: warning: variable ‘ret’ set but not used
[-Wunused-but-set-variable]
kernel/trace/ftrace.c:5571:6: warning: variable ‘ret’ set but not used
[-Wunused-but-set-variable]

Link: https://lkml.kernel.org/r/1604674486-52350-1-git-send-email-alex.shi@linux.alibaba.com



Signed-off-by: default avatarAlex Shi <alex.shi@linux.alibaba.com>
Signed-off-by: default avatarSteven Rostedt (VMware) <rostedt@goodmis.org>
parent 28575c61

kernel/trace/ftrace.c

+2 −4
Original line number Diff line number Diff line
@@ -4162,7 +4162,6 @@ static void process_mod_list(struct list_head *head, struct ftrace_ops *ops, 
	struct ftrace_hash **orig_hash, *new_hash;

	LIST_HEAD(process_mods);

	char *func;

	int ret;



	mutex_lock(&ops->func_hash->regex_lock);
@@ -4215,7 +4214,7 @@ static void process_mod_list(struct list_head *head, struct ftrace_ops *ops, 


	mutex_lock(&ftrace_lock);



	ret = ftrace_hash_move_and_update_ops(ops, orig_hash,

	ftrace_hash_move_and_update_ops(ops, orig_hash,

					      new_hash, enable);

	mutex_unlock(&ftrace_lock);
@@ -5567,7 +5566,6 @@ int ftrace_regex_release(struct inode *inode, struct file *file) 
	struct ftrace_hash **orig_hash;

	struct trace_parser *parser;

	int filter_hash;

	int ret;



	if (file->f_mode & FMODE_READ) {

		iter = m->private;
@@ -5595,7 +5593,7 @@ int ftrace_regex_release(struct inode *inode, struct file *file) 
			orig_hash = &iter->ops->func_hash->notrace_hash;



		mutex_lock(&ftrace_lock);

		ret = ftrace_hash_move_and_update_ops(iter->ops, orig_hash,

		ftrace_hash_move_and_update_ops(iter->ops, orig_hash,

						      iter->hash, filter_hash);

		mutex_unlock(&ftrace_lock);

	} else {

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