diff --git a/arch/sparc/kernel/irq_64.c b/arch/sparc/kernel/irq_64.c
index f0ee79055409d3..8daab33fc17d18 100644
--- a/arch/sparc/kernel/irq_64.c
+++ b/arch/sparc/kernel/irq_64.c
@@ -886,7 +886,7 @@ void notrace init_irqwork_curcpu(void)
  * Therefore you cannot make any OBP calls, not even prom_printf,
  * from these two routines.
  */
-static void __cpuinit register_one_mondo(unsigned long paddr, unsigned long type, unsigned long qmask)
+static void __cpuinit notrace register_one_mondo(unsigned long paddr, unsigned long type, unsigned long qmask)
 {
 	unsigned long num_entries = (qmask + 1) / 64;
 	unsigned long status;
diff --git a/arch/sparc/kernel/nmi.c b/arch/sparc/kernel/nmi.c
index 2c0cc72d295b07..b75bf502cd424e 100644
--- a/arch/sparc/kernel/nmi.c
+++ b/arch/sparc/kernel/nmi.c
@@ -103,7 +103,7 @@ notrace __kprobes void perfctr_irq(int irq, struct pt_regs *regs)
 	}
 	if (!touched && __get_cpu_var(last_irq_sum) == sum) {
 		local_inc(&__get_cpu_var(alert_counter));
-		if (local_read(&__get_cpu_var(alert_counter)) == 5 * nmi_hz)
+		if (local_read(&__get_cpu_var(alert_counter)) == 30 * nmi_hz)
 			die_nmi("BUG: NMI Watchdog detected LOCKUP",
 				regs, panic_on_timeout);
 	} else {
diff --git a/arch/sparc/prom/misc_64.c b/arch/sparc/prom/misc_64.c
index eedffb4fec2d64..39fc6af21b7c55 100644
--- a/arch/sparc/prom/misc_64.c
+++ b/arch/sparc/prom/misc_64.c
@@ -88,7 +88,7 @@ void prom_cmdline(void)
 /* Drop into the prom, but completely terminate the program.
  * No chance of continuing.
  */
-void prom_halt(void)
+void notrace prom_halt(void)
 {
 #ifdef CONFIG_SUN_LDOMS
 	if (ldom_domaining_enabled)
diff --git a/arch/sparc/prom/printf.c b/arch/sparc/prom/printf.c
index 660943ee4c2ac7..ca869266b9f3d0 100644
--- a/arch/sparc/prom/printf.c
+++ b/arch/sparc/prom/printf.c
@@ -14,14 +14,14 @@
  */
 
 #include <linux/kernel.h>
+#include <linux/compiler.h>
 
 #include <asm/openprom.h>
 #include <asm/oplib.h>
 
 static char ppbuf[1024];
 
-void
-prom_write(const char *buf, unsigned int n)
+void notrace prom_write(const char *buf, unsigned int n)
 {
 	char ch;
 
@@ -33,8 +33,7 @@ prom_write(const char *buf, unsigned int n)
 	}
 }
 
-void
-prom_printf(const char *fmt, ...)
+void notrace prom_printf(const char *fmt, ...)
 {
 	va_list args;
 	int i;