1 files changed, 2 insertions, 0 deletions

diff --git a/mm/bounce.c b/mm/bounce.c
index bd1caaa582b8..bf0cf7c8387b 100644
--- a/mm/bounce.c
+++ b/mm/bounce.c
@@ -22,6 +22,8 @@
 
 static mempool_t *page_pool, *isa_page_pool;
 
+DEFINE_TRACE(block_bio_bounce);
+
 #ifdef CONFIG_HIGHMEM
 static __init int init_emergency_pool(void)
 {