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authorAlex Shi <alex.shi@linux.alibaba.com>2020-11-06 22:54:46 +0800
committerSteven Rostedt (VMware) <rostedt@goodmis.org>2020-11-10 20:39:40 -0500
commit045e269c1eb2db5b5df9e034af617af8f4c1b35c (patch)
treea2e726f9d75d27e7faa832268b5cef5ff3679521 /kernel
parent28575c61ea602537a3d86fe301a53554e59452ae (diff)
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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: Alex Shi <alex.shi@linux.alibaba.com> Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
Diffstat (limited to 'kernel')
-rw-r--r--kernel/trace/ftrace.c6
1 files changed, 2 insertions, 4 deletions
diff --git a/kernel/trace/ftrace.c b/kernel/trace/ftrace.c
index 03aad2b5cd5e..3db64fb0cce8 100644
--- a/kernel/trace/ftrace.c
+++ b/kernel/trace/ftrace.c
@@ -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 {