proc: fixup irq iterator

There is no need for irq_desc here. Even for sparse_irq we can
handle this clever in for_each_irq_nr().

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>

diff --git a/fs/proc/proc_misc.c b/fs/proc/proc_misc.c
index 3f5c7b9..97b4579 100644 (file)
--- a/fs/proc/proc_misc.c
+++ b/fs/proc/proc_misc.c
@@ -509,9 +509,6 @@ static int show_stat(struct seq_file *p, void *v)
        u64 sum = 0;
        struct timespec boottime;
        unsigned int per_irq_sum;
-#ifdef CONFIG_GENERIC_HARDIRQS
-       struct irq_desc *desc;
-#endif
 
        user = nice = system = idle = iowait =
                irq = softirq = steal = cputime64_zero;
@@ -530,7 +527,7 @@ static int show_stat(struct seq_file *p, void *v)
                steal = cputime64_add(steal, kstat_cpu(i).cpustat.steal);
                guest = cputime64_add(guest, kstat_cpu(i).cpustat.guest);
 
-               for_each_irq_desc(j, desc)
+               for_each_irq_nr(j)
                        sum += kstat_irqs_cpu(j, i);
 
                sum += arch_irq_stat_cpu(i);
@@ -575,7 +572,7 @@ static int show_stat(struct seq_file *p, void *v)
        seq_printf(p, "intr %llu", (unsigned long long)sum);
 
        /* sum again ? it could be updated? */
-       for_each_irq_desc(j, desc) {
+       for_each_irq_nr(j) {
                per_irq_sum = 0;
 
                for_each_possible_cpu(i)

diff --git a/include/linux/irq.h b/include/linux/irq.h
index 31632aa..0618fb3 100644 (file)
--- a/include/linux/irq.h
+++ b/include/linux/irq.h
@@ -27,6 +27,9 @@ extern int nr_irqs;
             irq > 0; irq--, desc--)
 #endif
 
+#define for_each_irq_nr(irq)                   \
+       for (irq = 0; irq < nr_irqs; irq++)
+
 #ifndef CONFIG_S390
 
 #include <linux/linkage.h>