Commit-ID: f61ae4fb66a4f7ae49e3456003fc4328d6db09c9
Gitweb: http://git.kernel.org/tip/f61ae4fb66a4f7ae49e3456003fc4328d6db09c9
Author: Thomas Gleixner <tglx@xxxxxxxxxxxxx>
AuthorDate: Sun, 2 Aug 2015 20:38:26 +0000
Committer: Thomas Gleixner <tglx@xxxxxxxxxxxxx>
CommitDate: Thu, 6 Aug 2015 00:14:59 +0200
genirq: Provide irq_desc_has_action
If we have a reference to irq_desc already, there is no point to do
another lookup.
Signed-off-by: Thomas Gleixner <tglx@xxxxxxxxxxxxx>
Cc: Jiang Liu <jiang.liu@xxxxxxxxxxxxxxx>
Cc: Peter Zijlstra <peterz@xxxxxxxxxxxxx>
Cc: Rusty Russell <rusty@xxxxxxxxxxxxxxx>
Cc: Bjorn Helgaas <bhelgaas@xxxxxxxxxx>
Link: http://lkml.kernel.org/r/20150802203609.638130301@xxxxxxxxxxxxx
Signed-off-by: Thomas Gleixner <tglx@xxxxxxxxxxxxx>
---
include/linux/irqdesc.h | 8 ++++++--
1 file changed, 6 insertions(+), 2 deletions(-)
diff --git a/include/linux/irqdesc.h b/include/linux/irqdesc.h
index fcea4e4..5acfa26 100644
--- a/include/linux/irqdesc.h
+++ b/include/linux/irqdesc.h
@@ -166,12 +166,16 @@ static inline int handle_domain_irq(struct irq_domain *domain,
#endif
/* Test to see if a driver has successfully requested an irq */
-static inline int irq_has_action(unsigned int irq)
+static inline int irq_desc_has_action(struct irq_desc *desc)
{
- struct irq_desc *desc = irq_to_desc(irq);
return desc->action != NULL;
}
+static inline int irq_has_action(unsigned int irq)
+{
+ return irq_desc_has_action(irq_to_desc(irq));
+}
+
/* caller has locked the irq_desc and both params are valid */
static inline void __irq_set_handler_locked(unsigned int irq,
irq_flow_handler_t handler)
--
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