[PATCH V4 01/16] irqchip: crossbar: Dont use '0' to mark reserved interrupts
From: Sricharan R <hidden>
Date: 2014-06-26 07:13:18
Also in:
linux-arm-kernel, linux-omap, lkml
Subsystem:
irqchip drivers, the rest · Maintainers:
Thomas Gleixner, Linus Torvalds
From: Nishanth Menon <nm@ti.com> Today '0' is actually reserved, but may not be the same in the future. So, use a flag to mark the GIC interrupts that are reserved. Signed-off-by: Nishanth Menon <nm@ti.com> Signed-off-by: Sricharan R <redacted> Acked-by: Santosh Shilimkar <redacted> --- drivers/irqchip/irq-crossbar.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-)
diff --git a/drivers/irqchip/irq-crossbar.c b/drivers/irqchip/irq-crossbar.c
index 3d15d16..20105bc 100644
--- a/drivers/irqchip/irq-crossbar.c
+++ b/drivers/irqchip/irq-crossbar.c@@ -17,6 +17,7 @@ #include <linux/irqchip/arm-gic.h> #define IRQ_FREE -1 +#define IRQ_RESERVED -2 #define GIC_IRQ_START 32 /*
@@ -139,7 +140,7 @@ static int __init crossbar_of_init(struct device_node *node) pr_err("Invalid reserved entry\n"); goto err3; } - cb->irq_map[entry] = 0; + cb->irq_map[entry] = IRQ_RESERVED; } }
@@ -170,7 +171,7 @@ static int __init crossbar_of_init(struct device_node *node) * reserved irqs. so find and store the offsets once. */ for (i = 0; i < max; i++) { - if (!cb->irq_map[i]) + if (cb->irq_map[i] == IRQ_RESERVED) continue; cb->register_offsets[i] = reserved;
--
1.7.9.5