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genirq/generic_chip: Constify irq_generic_chip_ops 

The only usage of irq_generic_chip_ops is to pass its address to
irq_domain_add_linear() which takes a pointer to const struct
irq_domain_ops. Make it const to allow the compiler to put it in
read-only memory.

[ tglx: Fixed subject prefix ]

Signed-off-by: Rikard Falkeborn <rikard.falkeborn@gmail.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Link: https://lore.kernel.org/r/20211130214043.1257585-1-rikard.falkeborn@gmail.com
This commit is contained in:
Rikard Falkeborn 2021-11-30 22:40:43 +01:00 committed by Thomas Gleixner
parent d58071a8a7
commit 4946f15e8c
2 changed files with 2 additions and 2 deletions
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2
include/linux/irqdomain.h
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@ -131,7 +131,7 @@ struct irq_domain_ops {
#endif #endif
}; };
extern struct irq_domain_ops irq_generic_chip_ops; extern const struct irq_domain_ops irq_generic_chip_ops;
struct irq_domain_chip_generic; struct irq_domain_chip_generic;

2
kernel/irq/generic-chip.c
View File

@ -451,7 +451,7 @@ static void irq_unmap_generic_chip(struct irq_domain *d, unsigned int virq)
} }
struct irq_domain_ops irq_generic_chip_ops = { const struct irq_domain_ops irq_generic_chip_ops = {
.map = irq_map_generic_chip, .map = irq_map_generic_chip,
.unmap = irq_unmap_generic_chip, .unmap = irq_unmap_generic_chip,
.xlate = irq_domain_xlate_onetwocell, .xlate = irq_domain_xlate_onetwocell,