1 files changed, 2 insertions, 3 deletions

diff --git a/arch/x86/include/asm/switch_to.h b/arch/x86/include/asm/switch_to.h
index 8c6bd6863db9..1008d4622709 100644
--- a/arch/x86/include/asm/switch_to.h
+++ b/arch/x86/include/asm/switch_to.h
@@ -16,8 +16,7 @@ void __switch_to_xtra(struct task_struct *prev_p, struct task_struct *next_p,
                       struct tss_struct *tss);
 
 /* This runs runs on the previous thread's stack. */
-static inline void prepare_switch_to(struct task_struct *prev,
-                                     struct task_struct *next)
+static inline void prepare_switch_to(struct task_struct *next)
 {
 #ifdef CONFIG_VMAP_STACK
         /*
@@ -70,7 +69,7 @@ struct fork_frame {
 
 #define switch_to(prev, next, last)                                     \
 do {                                                                    \
-        prepare_switch_to(prev, next);                                  \
+        prepare_switch_to(next);                                        \
                                                                         \
         ((last) = __switch_to_asm((prev), (next)));                     \
 } while (0)