irq: simplify for_each_irq_desc() usage

Impact: cleanup

all for_each_irq_desc() usage point have !desc check.
then its check can move into for_each_irq_desc() macro.

Signed-off-by: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>
Acked-by: Yinghai Lu <yinghai@kernel.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

1 files changed, 0 insertions, 10 deletions

diff --git a/arch/x86/kernel/io_apic.c b/arch/x86/kernel/io_apic.c
index a74887b416cc..2fe543f58ac8 100644
--- a/arch/x86/kernel/io_apic.c
+++ b/arch/x86/kernel/io_apic.c
@@ -1345,8 +1345,6 @@ void __setup_vector_irq(int cpu)
 
         /* Mark the inuse vectors */
         for_each_irq_desc(irq, desc) {
-                if (!desc)
-                        continue;
                 cfg = desc->chip_data;
                 if (!cpu_isset(cpu, cfg->domain))
                         continue;
@@ -1730,8 +1728,6 @@ __apicdebuginit(void) print_IO_APIC(void)
         for_each_irq_desc(irq, desc) {
                 struct irq_pin_list *entry;
 
-                if (!desc)
-                        continue;
                 cfg = desc->chip_data;
                 entry = cfg->irq_2_pin;
                 if (!entry)
@@ -2378,9 +2374,6 @@ static void ir_irq_migration(struct work_struct *work)
         struct irq_desc *desc;
 
         for_each_irq_desc(irq, desc) {
-                if (!desc)
-                        continue;
-
                 if (desc->status & IRQ_MOVE_PENDING) {
                         unsigned long flags;
 
@@ -2671,9 +2664,6 @@ static inline void init_IO_APIC_traps(void)
          * 0x80, because int 0x80 is hm, kind of importantish. ;)
          */
         for_each_irq_desc(irq, desc) {
-                if (!desc)
-                        continue;
-
                 cfg = desc->chip_data;
                 if (IO_APIC_IRQ(irq) && cfg && !cfg->vector) {
                         /*