tracing: Get rid of unneeded key calculation in ftrace_hash_move()

It's not used anywhere in the function.

Link: http://lkml.kernel.org/r/1365553093-10180-1-git-send-email-namhyung@kernel.org
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>

diff --git a/kernel/trace/ftrace.c b/kernel/trace/ftrace.c
index 9e31987..3b84fc1 100644 (file)
--- a/kernel/trace/ftrace.c
+++ b/kernel/trace/ftrace.c
@@ -1320,7 +1320,6 @@ ftrace_hash_move(struct ftrace_ops *ops, int enable,
        struct hlist_head *hhd;
        struct ftrace_hash *old_hash;
        struct ftrace_hash *new_hash;
-       unsigned long key;
        int size = src->count;
        int bits = 0;
        int ret;
@@ -1363,10 +1362,6 @@ ftrace_hash_move(struct ftrace_ops *ops, int enable,
        for (i = 0; i < size; i++) {
                hhd = &src->buckets[i];
                hlist_for_each_entry_safe(entry, tp, tn, hhd, hlist) {
-                       if (bits > 0)
-                               key = hash_long(entry->ip, bits);
-                       else
-                               key = 0;
                        remove_hash_entry(src, entry);
                        __add_hash_entry(new_hash, entry);
                }