Use the number_of_interrupts() function instead of the global variable
'nr_irqs'. This patch prepares for changing 'nr_irqs' from an exported
global variable into a variable with file scope.

Cc: Alexey Dobriyan <adobriyan@gmail.com>
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
---
 fs/proc/interrupts.c | 4 ++--
 fs/proc/stat.c       | 4 ++--
 2 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/fs/proc/interrupts.c b/fs/proc/interrupts.c
index cb0edc7cbf09..90cc6b9a30f5 100644
--- a/fs/proc/interrupts.c
+++ b/fs/proc/interrupts.c
@@ -11,13 +11,13 @@
  */
 static void *int_seq_start(struct seq_file *f, loff_t *pos)
 {
-	return (*pos <= nr_irqs) ? pos : NULL;
+	return *pos <= number_of_interrupts() ? pos : NULL;
 }
 
 static void *int_seq_next(struct seq_file *f, void *v, loff_t *pos)
 {
 	(*pos)++;
-	if (*pos > nr_irqs)
+	if (*pos > number_of_interrupts())
 		return NULL;
 	return pos;
 }
diff --git a/fs/proc/stat.c b/fs/proc/stat.c
index da60956b2915..6e22a7bca973 100644
--- a/fs/proc/stat.c
+++ b/fs/proc/stat.c
@@ -76,7 +76,7 @@ static void show_all_irqs(struct seq_file *p)
 		seq_put_decimal_ull(p, " ", kstat_irqs_usr(i));
 		next = i + 1;
 	}
-	show_irq_gap(p, nr_irqs - next);
+	show_irq_gap(p, number_of_interrupts() - next);
 }
 
 static int show_stat(struct seq_file *p, void *v)
@@ -196,7 +196,7 @@ static int stat_open(struct inode *inode, struct file *file)
 	unsigned int size = 1024 + 128 * num_online_cpus();
 
 	/* minimum size to display an interrupt count : 2 bytes */
-	size += 2 * nr_irqs;
+	size += 2 * number_of_interrupts();
 	return single_open_size(file, show_stat, NULL, size);
 }