genirq/proc: Replace ever repeating type cast

The proc file setup repeats the same ugly type cast for the irq number over
and over. Do it once and hand in the local void pointer.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Jens Axboe <axboe@kernel.dk>
Cc: Marc Zyngier <marc.zyngier@arm.com>
Cc: Michael Ellerman <mpe@ellerman.id.au>
Cc: Keith Busch <keith.busch@intel.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Christoph Hellwig <hch@lst.de>
Link: http://lkml.kernel.org/r/20170619235446.160866358@linutronix.de

diff --git a/kernel/irq/proc.c b/kernel/irq/proc.c
index eff7c0c8f9b90efae0dad6ce7e556ca9394ad362..cbc4c5e377ec14e6d2a1bab47ebc364eb41c03d0 100644 (file)
--- a/kernel/irq/proc.c
+++ b/kernel/irq/proc.c
@@ -326,6 +326,7 @@ void register_handler_proc(unsigned int irq, struct irqaction *action)
 void register_irq_proc(unsigned int irq, struct irq_desc *desc)
 {
        static DEFINE_MUTEX(register_lock);
+       void __maybe_unused *irqp = (void *)(unsigned long) irq;
        char name [MAX_NAMELEN];
 
        if (!root_irq_dir || (desc->irq_data.chip == &no_irq_chip))
@@ -351,20 +352,19 @@ void register_irq_proc(unsigned int irq, struct irq_desc *desc)
 #ifdef CONFIG_SMP
        /* create /proc/irq/<irq>/smp_affinity */
        proc_create_data("smp_affinity", 0644, desc->dir,
-                        &irq_affinity_proc_fops, (void *)(long)irq);
+                        &irq_affinity_proc_fops, irqp);
 
        /* create /proc/irq/<irq>/affinity_hint */
        proc_create_data("affinity_hint", 0444, desc->dir,
-                        &irq_affinity_hint_proc_fops, (void *)(long)irq);
+                        &irq_affinity_hint_proc_fops, irqp);
 
        /* create /proc/irq/<irq>/smp_affinity_list */
        proc_create_data("smp_affinity_list", 0644, desc->dir,
-                        &irq_affinity_list_proc_fops, (void *)(long)irq);
+                        &irq_affinity_list_proc_fops, irqp);
 
        proc_create_data("node", 0444, desc->dir,
-                        &irq_node_proc_fops, (void *)(long)irq);
+                        &irq_node_proc_fops, irqp);
 #endif
-
        proc_create_data("spurious", 0444, desc->dir,
                         &irq_spurious_proc_fops, (void *)(long)irq);