tree-wide: replace config_enabled() with IS_ENABLED()

[deliverable/linux.git] / arch / mips / oprofile / op_model_loongson3.c

diff --git a/arch/mips/oprofile/op_model_loongson3.c b/arch/mips/oprofile/op_model_loongson3.c
index 8bcf7fc40f0d0375b254914166856c8cdce23bd5..85f3ee4ab4566145039480d78113b3847c51da85 100644 (file)
--- a/arch/mips/oprofile/op_model_loongson3.c
+++ b/arch/mips/oprofile/op_model_loongson3.c
@@ -168,33 +168,26 @@ static int loongson3_perfcount_handler(void)
        return handled;
 }
 
-static int loongson3_cpu_callback(struct notifier_block *nfb,
-       unsigned long action, void *hcpu)
+static int loongson3_starting_cpu(unsigned int cpu)
 {
-       switch (action) {
-       case CPU_STARTING:
-       case CPU_STARTING_FROZEN:
-               write_c0_perflo1(reg.control1);
-               write_c0_perflo2(reg.control2);
-               break;
-       case CPU_DYING:
-       case CPU_DYING_FROZEN:
-               write_c0_perflo1(0xc0000000);
-               write_c0_perflo2(0x40000000);
-               break;
-       }
-
-       return NOTIFY_OK;
+       write_c0_perflo1(reg.control1);
+       write_c0_perflo2(reg.control2);
+       return 0;
 }
 
-static struct notifier_block loongson3_notifier_block = {
-       .notifier_call = loongson3_cpu_callback
-};
+static int loongson3_dying_cpu(unsigned int cpu)
+{
+       write_c0_perflo1(0xc0000000);
+       write_c0_perflo2(0x40000000);
+       return 0;
+}
 
 static int __init loongson3_init(void)
 {
        on_each_cpu(reset_counters, NULL, 1);
-       register_hotcpu_notifier(&loongson3_notifier_block);
+       cpuhp_setup_state_nocalls(CPUHP_AP_MIPS_OP_LOONGSON3_STARTING,
+                                 "AP_MIPS_OP_LOONGSON3_STARTING",
+                                 loongson3_starting_cpu, loongson3_dying_cpu);
        save_perf_irq = perf_irq;
        perf_irq = loongson3_perfcount_handler;
 
@@ -204,7 +197,7 @@ static int __init loongson3_init(void)
 static void loongson3_exit(void)
 {
        on_each_cpu(reset_counters, NULL, 1);
-       unregister_hotcpu_notifier(&loongson3_notifier_block);
+       cpuhp_remove_state_nocalls(CPUHP_AP_MIPS_OP_LOONGSON3_STARTING);
        perf_irq = save_perf_irq;
 }