1 files changed, 0 insertions, 17 deletions
diff --git a/arch/x86/kernel/cpu/common.c b/arch/x86/kernel/cpu/common.c
index f4645f9ff9cb..043d93cdcaad 100644
--- a/arch/x86/kernel/cpu/common.c
+++ b/arch/x86/kernel/cpu/common.c
@@ -1706,23 +1706,6 @@ void syscall_init(void)
 	       X86_EFLAGS_IOPL|X86_EFLAGS_AC|X86_EFLAGS_NT);
 }
 
-DEFINE_PER_CPU(int, debug_stack_usage);
-DEFINE_PER_CPU(u32, debug_idt_ctr);
-
-noinstr void debug_stack_set_zero(void)
-{
-	this_cpu_inc(debug_idt_ctr);
-	load_current_idt();
-}
-
-noinstr void debug_stack_reset(void)
-{
-	if (WARN_ON(!this_cpu_read(debug_idt_ctr)))
-		return;
-	if (this_cpu_dec_return(debug_idt_ctr) == 0)
-		load_current_idt();
-}
-
 #else	/* CONFIG_X86_64 */
 
 DEFINE_PER_CPU(struct task_struct *, current_task) = &init_task;