[PATCH] i386/x86-64: Remove un/set_nmi_callback and reserve/release_lapic_nmi functions

[platform/adaptation/renesas_rcar/renesas_kernel.git] / arch / i386 / kernel / traps.c

diff --git a/arch/i386/kernel/traps.c b/arch/i386/kernel/traps.c
index 282f0bd..7db664d 100644 (file)
--- a/arch/i386/kernel/traps.c
+++ b/arch/i386/kernel/traps.c
@@ -706,13 +706,6 @@ void die_nmi (struct pt_regs *regs, const char *msg)
        do_exit(SIGSEGV);
 }
 
-static int dummy_nmi_callback(struct pt_regs * regs, int cpu)
-{
-       return 0;
-}
-
-static nmi_callback_t nmi_callback = dummy_nmi_callback;
-
 static void default_do_nmi(struct pt_regs * regs)
 {
        unsigned char reason = 0;
@@ -732,9 +725,10 @@ static void default_do_nmi(struct pt_regs * regs)
                 */
                if (nmi_watchdog_tick(regs, reason))
                        return;
+               if (!do_nmi_callback(regs, smp_processor_id()))
 #endif
-               if (!rcu_dereference(nmi_callback)(regs, smp_processor_id()))
                        unknown_nmi_error(reason, regs);
+
                return;
        }
        if (notify_die(DIE_NMI, "nmi", regs, reason, 2, SIGINT) == NOTIFY_STOP)
@@ -765,19 +759,6 @@ fastcall void do_nmi(struct pt_regs * regs, long error_code)
        nmi_exit();
 }
 
-void set_nmi_callback(nmi_callback_t callback)
-{
-       vmalloc_sync_all();
-       rcu_assign_pointer(nmi_callback, callback);
-}
-EXPORT_SYMBOL_GPL(set_nmi_callback);
-
-void unset_nmi_callback(void)
-{
-       nmi_callback = dummy_nmi_callback;
-}
-EXPORT_SYMBOL_GPL(unset_nmi_callback);
-
 #ifdef CONFIG_KPROBES
 fastcall void __kprobes do_int3(struct pt_regs *regs, long error_code)
 {