Commit-ID: 1d50d2ce6337724d30055bdbe082236cc86e6785
Gitweb: http://git.kernel.org/tip/1d50d2ce6337724d30055bdbe082236cc86e6785
Author: Nishanth Menon <nm@xxxxxx>
AuthorDate: Thu, 26 Jun 2014 12:40:19 +0530
Committer: Jason Cooper <jason@xxxxxxxxxxxxxx>
CommitDate: Mon, 30 Jun 2014 19:11:16 +0000
irqchip: crossbar: Dont use '0' to mark reserved interrupts
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@xxxxxx>
Signed-off-by: Sricharan R <r.sricharan@xxxxxx>
Acked-by: Santosh Shilimkar <santosh.shilimkar@xxxxxx>
Link: https://lkml.kernel.org/r/1403766634-18543-2-git-send-email-r.sricharan@xxxxxx
Signed-off-by: Jason Cooper <jason@xxxxxxxxxxxxxx>
---
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;
--
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