diff --git a/arch/mips/kernel/ptrace.c b/arch/mips/kernel/ptrace.c
index 35234b9..96ffc9c 100644
--- a/arch/mips/kernel/ptrace.c
+++ b/arch/mips/kernel/ptrace.c
@@ -238,7 +238,7 @@
 		case FPC_EIR: {	/* implementation / version register */
 			unsigned int flags;
 #ifdef CONFIG_MIPS_MT_SMTC
-			unsigned int irqflags;
+			unsigned long irqflags;
 			unsigned int mtflags;
 #endif /* CONFIG_MIPS_MT_SMTC */
 
diff --git a/arch/mips/kernel/smtc.c b/arch/mips/kernel/smtc.c
index a516286..05f2708 100644
--- a/arch/mips/kernel/smtc.c
+++ b/arch/mips/kernel/smtc.c
@@ -556,7 +556,7 @@
 void __cpuinit smtc_boot_secondary(int cpu, struct task_struct *idle)
 {
 	extern u32 kernelsp[NR_CPUS];
-	long flags;
+	unsigned long flags;
 	int mtflags;
 
 	LOCK_MT_PRA();
@@ -753,7 +753,7 @@
 {
 	int tcstatus;
 	struct smtc_ipi *pipi;
-	long flags;
+	unsigned long flags;
 	int mtflags;
 
 	if (cpu == smp_processor_id()) {
@@ -975,7 +975,7 @@
 	struct smtc_ipi *pipi;
 	unsigned long tcstatus;
 	int sent;
-	long flags;
+	unsigned long flags;
 	unsigned int mtflags;
 	unsigned int vpflags;