[PATCH 1/1] irqchip/gicv3: iterate over possible CPUs by for_each_possible_cpu()

[zijun_hu]

From: zijun_hu <zijun...@htc.com>

get_cpu_number() doesn't use existing helper to iterate over possible
CPUs, so error happens in case of discontinuous @cpu_possible_mask
such as 0b11110001.

fixed by using existing helper for_each_possible_cpu().

Signed-off-by: zijun_hu <zijun...@htc.com>
---
 drivers/irqchip/irq-gic-v3.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/drivers/irqchip/irq-gic-v3.c b/drivers/irqchip/irq-gic-v3.c
index 19d642eae096..2a0427c2971e 100644
--- a/drivers/irqchip/irq-gic-v3.c
+++ b/drivers/irqchip/irq-gic-v3.c
@@ -990,7 +990,7 @@ static int get_cpu_number(struct device_node *dn)
 {
        const __be32 *cell;
        u64 hwid;
-       int i;
+       int cpu;
 
        cell = of_get_property(dn, "reg", NULL);
        if (!cell)
@@ -1004,9 +1004,9 @@ static int get_cpu_number(struct device_node *dn)
        if (hwid & ~MPIDR_HWID_BITMASK)
                return -1;
 
-       for (i = 0; i < num_possible_cpus(); i++)
-               if (cpu_logical_map(i) == hwid)
-                       return i;
+       for_each_possible_cpu(cpu)
+               if (cpu_logical_map(cpu) == hwid)
+                       return cpu;
 
        return -1;
 }
-- 
1.9.1