[PATCH for-4.19] xen/irq: Address MISRA Rule 8.3 violation

[Andrew Cooper <andrew.cooper3@xxxxxxxxxx>]

When centralising irq_ack_none(), different architectures had different names
for the parameter of irq_ack_none().  As it's type is struct irq_desc *, it
should be named desc.  Make this consistent.

No functional change.

Fixes: 8aeda4a241ab ("arch/irq: Make irq_ack_none() mandatory")
Signed-off-by: Andrew Cooper <andrew.cooper3@xxxxxxxxxx>
---
CC: George Dunlap <George.Dunlap@xxxxxxxxxx>
CC: Jan Beulich <JBeulich@xxxxxxxx>
CC: Stefano Stabellini <sstabellini@xxxxxxxxxx>
CC: Julien Grall <julien@xxxxxxx>
CC: Volodymyr Babchuk <Volodymyr_Babchuk@xxxxxxxx>
CC: Bertrand Marquis <bertrand.marquis@xxxxxxx>
CC: Michal Orzel <michal.orzel@xxxxxxx>
CC: Oleksii Kurochko <oleksii.kurochko@xxxxxxxxx>
CC: Roberto Bagnara <roberto.bagnara@xxxxxxxxxxx>
CC: Nicola Vetrini <nicola.vetrini@xxxxxxxxxxx>
CC: consulting@xxxxxxxxxxx <consulting@xxxxxxxxxxx>

Request for 4.19.  This was an accidental regression in a recent cleanup
patch, and the fix is just a rename - its no functional change.
---
 xen/arch/arm/irq.c    | 4 ++--
 xen/include/xen/irq.h | 2 +-
 2 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/xen/arch/arm/irq.c b/xen/arch/arm/irq.c
index c60502444ccf..6b89f64fd194 100644
--- a/xen/arch/arm/irq.c
+++ b/xen/arch/arm/irq.c
@@ -31,9 +31,9 @@ struct irq_guest
     unsigned int virq;
 };
 
-void irq_ack_none(struct irq_desc *irq)
+void irq_ack_none(struct irq_desc *desc)
 {
-    printk("unexpected IRQ trap at irq %02x\n", irq->irq);
+    printk("unexpected IRQ trap at irq %02x\n", desc->irq);
 }
 
 void irq_end_none(struct irq_desc *irq)
diff --git a/xen/include/xen/irq.h b/xen/include/xen/irq.h
index adf33547d25f..580ae37e7428 100644
--- a/xen/include/xen/irq.h
+++ b/xen/include/xen/irq.h
@@ -134,7 +134,7 @@ void cf_check irq_actor_none(struct irq_desc *desc);
  * irq_ack_none() must be provided by the architecture.
  * irq_end_none() is optional, and opted into using a define.
  */
-void cf_check irq_ack_none(struct irq_desc *irq);
+void cf_check irq_ack_none(struct irq_desc *desc);
 
 /*
  * Per-cpu interrupted context register state - the inner-most interrupt frame

base-commit: 8b4243a9b560c89bb259db5a27832c253d4bebc7
-- 
2.39.2