[PATCH v2 3/3] powerpc/irq: Simplify __do_irq()

From: Christophe Leroy
Date: Thu Jun 09 2022 - 06:17:52 EST


Remove duplicated code by implementing a proper if/else.

Signed-off-by: Christophe Leroy <christophe.leroy@xxxxxxxxxx>
---
arch/powerpc/kernel/irq.c | 11 ++++-------
1 file changed, 4 insertions(+), 7 deletions(-)

diff --git a/arch/powerpc/kernel/irq.c b/arch/powerpc/kernel/irq.c
index e5b7fb5282ee..b007f16ccbd3 100644
--- a/arch/powerpc/kernel/irq.c
+++ b/arch/powerpc/kernel/irq.c
@@ -280,14 +280,11 @@ void __do_IRQ(struct pt_regs *regs)
irqsp = hardirq_ctx[raw_smp_processor_id()];
sirqsp = softirq_ctx[raw_smp_processor_id()];

- /* Already there ? */
- if (unlikely(cursp == irqsp || cursp == sirqsp)) {
+ /* Already there ? If not switch stack and call */
+ if (unlikely(cursp == irqsp || cursp == sirqsp))
__do_irq(regs, current_stack_pointer);
- set_irq_regs(old_regs);
- return;
- }
- /* Switch stack and call */
- call_do_irq(regs, irqsp);
+ else
+ call_do_irq(regs, irqsp);

set_irq_regs(old_regs);
}
--
2.35.3