diff options
| author | Changbin Du <changbin.du@gmail.com> | 2019-09-10 22:33:36 +0800 |
|---|---|---|
| committer | Steven Rostedt (VMware) <rostedt@goodmis.org> | 2019-09-17 11:21:20 -0400 |
| commit | 08468754c16e731d31538a8b1b0b433be2410a89 (patch) | |
| tree | ace93da8e310a960008fdf4d93448603255b1994 /kernel | |
| parent | ac68154626ab7fe4ce5f424937c34f42a3e20c5b (diff) | |
ftrace: Simplify ftrace hash lookup code in clear_func_from_hash()
Function ftrace_lookup_ip() will check empty hash table. So we don't
need extra check outside.
Link: http://lkml.kernel.org/r/20190910143336.13472-1-changbin.du@gmail.com
Signed-off-by: Changbin Du <changbin.du@gmail.com>
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
Diffstat (limited to 'kernel')
| -rw-r--r-- | kernel/trace/ftrace.c | 6 |
1 files changed, 1 insertions, 5 deletions
diff --git a/kernel/trace/ftrace.c b/kernel/trace/ftrace.c index f9821a3374e9..c4cc048eb594 100644 --- a/kernel/trace/ftrace.c +++ b/kernel/trace/ftrace.c @@ -6036,11 +6036,7 @@ clear_func_from_hash(struct ftrace_init_func *func, struct ftrace_hash *hash) { struct ftrace_func_entry *entry; - if (ftrace_hash_empty(hash)) - return; - - entry = __ftrace_lookup_ip(hash, func->ip); - + entry = ftrace_lookup_ip(hash, func->ip); /* * Do not allow this rec to match again. * Yeah, it may waste some memory, but will be removed |