diff --git a/drivers/hwtracing/intel_th/msu.c b/drivers/hwtracing/intel_th/msu.c
index 02cee33c30302b1fb23a2b1bc9054d3d5df3b346..cfd48c81b9d9a683d5031d8126c8b7f66c01030d 100644
--- a/drivers/hwtracing/intel_th/msu.c
+++ b/drivers/hwtracing/intel_th/msu.c
@@ -1400,10 +1400,9 @@ static int intel_th_msc_init(struct msc *msc)
 
 static void msc_win_switch(struct msc *msc)
 {
-	struct msc_window *last, *first;
+	struct msc_window *first;
 
 	first = list_first_entry(&msc->win_list, struct msc_window, entry);
-	last = list_last_entry(&msc->win_list, struct msc_window, entry);
 
 	if (msc_is_last_win(msc->cur_win))
 		msc->cur_win = first;