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genirq: fix off by one and coding style 

Fix off-by-one in for_each_irq_desc_reverse().

Impact is near zero in practice, because nothing substantial wants to
iterate down to IRQ#0 - but fix it nevertheless.

Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
This commit is contained in:
Ingo Molnar 2008-10-21 15:49:59 +02:00
parent 0b3682ba33
commit e9f95e6373
2 changed files with 5 additions and 5 deletions
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4
arch/x86/kernel/irq.c
View File

@ -36,7 +36,7 @@ void ack_bad_irq(unsigned int irq)
}
#ifdef CONFIG_X86_32
# define irq_stats(x) (&per_cpu(irq_stat,x))
# define irq_stats(x) (&per_cpu(irq_stat, x))
#else
# define irq_stats(x) cpu_pda(x)
#endif
@ -113,7 +113,7 @@ int show_interrupts(struct seq_file *p, void *v)
if (i == 0) {
seq_printf(p, " ");
for_each_online_cpu(j)
seq_printf(p, "CPU%-8d",j);
seq_printf(p, "CPU%-8d", j);
seq_putc(p, '\n');
}

6
include/linux/irqnr.h
View File

@ -13,9 +13,9 @@ extern int nr_irqs;
# define for_each_irq_desc(irq, desc) \
for (irq = 0, desc = irq_desc; irq < nr_irqs; irq++, desc++)
# define for_each_irq_desc_reverse(irq, desc) \
for (irq = nr_irqs -1, desc = irq_desc + (nr_irqs -1 ); \
irq > 0; irq--, desc--)
# define for_each_irq_desc_reverse(irq, desc) \
for (irq = nr_irqs - 1, desc = irq_desc + (nr_irqs - 1); \
irq >= 0; irq--, desc--)
#endif
#define for_each_irq_nr(irq) \