From: Thomas Gleixner <tglx@linutronix.de>
Date: Sun, 21 Jun 2015 19:10:58 +0000 (+0200)
Subject: irqchip/tb10x: Consolidate chained IRQ handler install/remove
X-Git-Tag: firefly_0821_release~176^2~1122^2~112
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=22890b0dbe233fa460d25762ab6a2f5c90f84d9c;p=firefly-linux-kernel-4.4.55.git

irqchip/tb10x: Consolidate chained IRQ handler install/remove

Chained irq handlers usually set up handler data as well. We now have
a function to set both under irq_desc->lock. Replace the two calls
with one.

Search and conversion was done with coccinelle:

@@
expression E1, E2, E3;
@@
(
-if (irq_set_handler_data(E1, E2) != 0)
-   BUG();
|
-irq_set_handler_data(E1, E2);
)
-irq_set_chained_handler(E1, E3);
+irq_set_chained_handler_and_data(E1, E3, E2);

@@
expression E1, E2, E3;
@@
(
-if (irq_set_handler_data(E1, E2) != 0)
-   BUG();
...
|
-irq_set_handler_data(E1, E2);
...
)
-irq_set_chained_handler(E1, E3);
+irq_set_chained_handler_and_data(E1, E3, E2);

Reported-by: Russell King <rmk+kernel@arm.linux.org.uk>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Julia Lawall <Julia.Lawall@lip6.fr>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Jason Cooper <jason@lakedaemon.net>
---

diff --git a/drivers/irqchip/irq-tb10x.c b/drivers/irqchip/irq-tb10x.c
index 55dea554d955..c7e1407c2b40 100644
--- a/drivers/irqchip/irq-tb10x.c
+++ b/drivers/irqchip/irq-tb10x.c
@@ -173,8 +173,8 @@ static int __init of_tb10x_init_irq(struct device_node *ictl,
 	for (i = 0; i < nrirqs; i++) {
 		unsigned int irq = irq_of_parse_and_map(ictl, i);
 
-		irq_set_handler_data(irq, domain);
-		irq_set_chained_handler(irq, tb10x_irq_cascade);
+		irq_set_chained_handler_and_data(irq, tb10x_irq_cascade,
+						 domain);
 	}
 
 	ab_irqctl_writereg(gc, AB_IRQCTL_INT_ENABLE, 0);