powerpc/perf/24x7: use rb_entry

To make the code clearer, use rb_entry() instead of container_of() to
deal with rbtree.

Signed-off-by: Geliang Tang <geliangtang@gmail.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>

diff --git a/arch/powerpc/perf/hv-24x7.c b/arch/powerpc/perf/hv-24x7.c
index d2b8e6061933aa855a752bc2bf1cd79c0822b7c2..bdeb41b1a6e5893768ac94220c1a1dd976ff745d 100644 (file)
--- a/arch/powerpc/perf/hv-24x7.c
+++ b/arch/powerpc/perf/hv-24x7.c
@@ -571,7 +571,7 @@ static int event_uniq_add(struct rb_root *root, const char *name, int nl,
                struct event_uniq *it;
                int result;
 
-               it = container_of(*new, struct event_uniq, node);
+               it = rb_entry(*new, struct event_uniq, node);
                result = ev_uniq_ord(name, nl, domain, it->name, it->nl,
                                        it->domain);