Merge tag 'arm-dt-6.0' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc

[linux-2.6-microblaze.git] / kernel / irq / chip.c

diff --git a/kernel/irq/chip.c b/kernel/irq/chip.c
index 886789d..8ac37e8 100644 (file)
--- a/kernel/irq/chip.c
+++ b/kernel/irq/chip.c
@@ -188,7 +188,8 @@ enum {
 
 #ifdef CONFIG_SMP
 static int
-__irq_startup_managed(struct irq_desc *desc, struct cpumask *aff, bool force)
+__irq_startup_managed(struct irq_desc *desc, const struct cpumask *aff,
+                     bool force)
 {
        struct irq_data *d = irq_desc_get_irq_data(desc);
 
@@ -224,7 +225,8 @@ __irq_startup_managed(struct irq_desc *desc, struct cpumask *aff, bool force)
 }
 #else
 static __always_inline int
-__irq_startup_managed(struct irq_desc *desc, struct cpumask *aff, bool force)
+__irq_startup_managed(struct irq_desc *desc, const struct cpumask *aff,
+                     bool force)
 {
        return IRQ_STARTUP_NORMAL;
 }
@@ -252,7 +254,7 @@ static int __irq_startup(struct irq_desc *desc)
 int irq_startup(struct irq_desc *desc, bool resend, bool force)
 {
        struct irq_data *d = irq_desc_get_irq_data(desc);
-       struct cpumask *aff = irq_data_get_affinity_mask(d);
+       const struct cpumask *aff = irq_data_get_affinity_mask(d);
        int ret = 0;
 
        desc->depth = 0;
@@ -1516,7 +1518,8 @@ int irq_chip_request_resources_parent(struct irq_data *data)
        if (data->chip->irq_request_resources)
                return data->chip->irq_request_resources(data);
 
-       return -ENOSYS;
+       /* no error on missing optional irq_chip::irq_request_resources */
+       return 0;
 }
 EXPORT_SYMBOL_GPL(irq_chip_request_resources_parent);