Use cpumask_t rather than hand-rolled bitmask code in sb1250_set_affinity.

    
Signed-Off-By: Andrew Isaacson <adi@broadcom.com>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

1 files changed, 4 insertions, 11 deletions

diff --git a/arch/mips/sibyte/sb1250/irq.c b/arch/mips/sibyte/sb1250/irq.c
index b9f1ff420fef..589537bfcc3d 100644
--- a/arch/mips/sibyte/sb1250/irq.c
+++ b/arch/mips/sibyte/sb1250/irq.c
@@ -53,7 +53,7 @@ static void disable_sb1250_irq(unsigned int irq);
 static unsigned int startup_sb1250_irq(unsigned int irq);
 static void ack_sb1250_irq(unsigned int irq);
 #ifdef CONFIG_SMP
-static void sb1250_set_affinity(unsigned int irq, unsigned long mask);
+static void sb1250_set_affinity(unsigned int irq, cpumask_t mask);
 #endif
 
 #ifdef CONFIG_SIBYTE_HAS_LDT
@@ -117,23 +117,16 @@ void sb1250_unmask_irq(int cpu, int irq)
 }
 
 #ifdef CONFIG_SMP
-static void sb1250_set_affinity(unsigned int irq, unsigned long mask)
+static void sb1250_set_affinity(unsigned int irq, cpumask_t mask)
 {
         int i = 0, old_cpu, cpu, int_on;
         u64 cur_ints;
         irq_desc_t *desc = irq_desc + irq;
         unsigned long flags;
 
-        while (mask) {
-                if (mask & 1) {
-                        mask >>= 1;
-                        break;
-                }
-                mask >>= 1;
-                i++;
-        }
+        i = first_cpu(mask);
 
-        if (mask) {
+        if (cpus_weight(mask) > 1) {
                 printk("attempted to set irq affinity for irq %d to multiple CPUs\n", irq);
                 return;
         }