diff --git a/arch/Kconfig b/arch/Kconfig
index 205fd23e0cad..422f0ffa269e 100644
--- a/arch/Kconfig
+++ b/arch/Kconfig
@@ -405,7 +405,8 @@ config HAVE_NMI_WATCHDOG
 	bool
 	help
 	  The arch provides a low level NMI watchdog. It provides
-	  asm/nmi.h, and defines its own arch_touch_nmi_watchdog().
+	  asm/nmi.h, and defines its own watchdog_hardlockup_probe() and
+	  arch_touch_nmi_watchdog().
 
 config HAVE_HARDLOCKUP_DETECTOR_ARCH
 	bool
diff --git a/arch/sparc/kernel/nmi.c b/arch/sparc/kernel/nmi.c
index 9d9e29b75c43..17cdfdbf1f3b 100644
--- a/arch/sparc/kernel/nmi.c
+++ b/arch/sparc/kernel/nmi.c
@@ -65,6 +65,11 @@ void arch_touch_nmi_watchdog(void)
 }
 EXPORT_SYMBOL(arch_touch_nmi_watchdog);
 
+int __init watchdog_hardlockup_probe(void)
+{
+	return 0;
+}
+
 static void die_nmi(const char *str, struct pt_regs *regs, int do_panic)
 {
 	int this_cpu = smp_processor_id();
diff --git a/kernel/watchdog.c b/kernel/watchdog.c
index 4b9e31edb47f..62230f5b8878 100644
--- a/kernel/watchdog.c
+++ b/kernel/watchdog.c
@@ -217,19 +217,6 @@ void __weak watchdog_hardlockup_disable(unsigned int cpu) { }
  */
 int __weak __init watchdog_hardlockup_probe(void)
 {
-	/*
-	 * If CONFIG_HAVE_NMI_WATCHDOG is defined then an architecture
-	 * is assumed to have the hard watchdog available and we return 0.
-	 */
-	if (IS_ENABLED(CONFIG_HAVE_NMI_WATCHDOG))
-		return 0;
-
-	/*
-	 * Hardlockup detectors other than those using CONFIG_HAVE_NMI_WATCHDOG
-	 * are required to implement a non-weak version of this probe function
-	 * to tell whether they are available. If they don't override then
-	 * we'll return -ENODEV.
-	 */
 	return -ENODEV;
 }