Aug 01 2015

dmaengine: ipu: Prepare irq handlers for irq argument removal 

Author: Thomas Gleixner <tglx@linutronix.de>

The irq argument of most interrupt flow handlers is unused or merily
used instead of a local variable. The handlers which need the irq
argument can retrieve the irq number from the irq descriptor.

Search and update was done with coccinelle and the invaluable help of
Julia Lawall.

Signed-off-by: Thomas Gleixner 
Cc: Julia Lawall 
Cc: Vinod Koul 
Cc: Dan Williams 
Cc: dmaengine@vger.kernel.org
Signed-off-by: Vinod Koul 

---
 drivers/dma/ipu/ipu_irq.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)
 
diff --git a/drivers/dma/ipu/ipu_irq.c b/drivers/dma/ipu/ipu_irq.c
index 4357063..9f95940 100644
--- a/drivers/dma/ipu/ipu_irq.c
+++ b/drivers/dma/ipu/ipu_irq.c
@@ -266,7 +266,7 @@ int ipu_irq_unmap(unsigned int source)
 }
 
 /* Chained IRQ handler for IPU error interrupt */
-static void ipu_irq_err(unsigned int irq, struct irq_desc *desc)
+static void ipu_irq_err(unsigned int __irq, struct irq_desc *desc)
 {
 	struct ipu *ipu = irq_desc_get_handler_data(desc);
 	u32 status;
@@ -286,6 +286,7 @@ static void ipu_irq_err(unsigned int irq, struct irq_desc *desc)
 		raw_spin_unlock(&bank_lock);
 		while ((line = ffs(status))) {
 			struct ipu_irq_map *map;
+			unsigned int irq;
 
 			line--;
 			status &= ~(1UL << line);
@@ -307,7 +308,7 @@ static void ipu_irq_err(unsigned int irq, struct irq_desc *desc)
 }
 
 /* Chained IRQ handler for IPU function interrupt */
-static void ipu_irq_fn(unsigned int irq, struct irq_desc *desc)
+static void ipu_irq_fn(unsigned int __irq, struct irq_desc *desc)
 {
 	struct ipu *ipu = irq_desc_get_handler_data(desc);
 	u32 status;
@@ -323,6 +324,7 @@ static void ipu_irq_fn(unsigned int irq, struct irq_desc *desc)
 		raw_spin_unlock(&bank_lock);
 		while ((line = ffs(status))) {
 			struct ipu_irq_map *map;
+			unsigned int irq;
 
 			line--;
 			status &= ~(1UL << line);

qlambert