diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_mqd_manager_cik.c b/drivers/gpu/drm/amd/amdkfd/kfd_mqd_manager_cik.c
index 7b28f6e74c32..4e582debfaa9 100644
--- a/drivers/gpu/drm/amd/amdkfd/kfd_mqd_manager_cik.c
+++ b/drivers/gpu/drm/amd/amdkfd/kfd_mqd_manager_cik.c
@@ -28,12 +28,6 @@
 #include "cik_regs.h"
 #include "cik_structs.h"
 
-inline void busy_wait(unsigned long ms)
-{
-	while (time_before(jiffies, ms))
-		cpu_relax();
-}
-
 static inline struct cik_mqd *get_mqd(void *mqd)
 {
 	return (struct cik_mqd *)mqd;