[PATCH] genirq: Simplify the check for __irq_get_desc_lock()

From: Jinjie Ruan
Date: Mon May 06 2024 - 08:51:56 EST


If it set "_IRQ_DESC_PERCPU" in "check" but the desc is not percpu, or if
the desc is percpu but it not set "_IRQ_DESC_PERCPU" in "check", it both
return NULL, so simplify the check in __irq_get_desc_lock() with "!=".

Signed-off-by: Jinjie Ruan <ruanjinjie@xxxxxxxxxx>
---
kernel/irq/irqdesc.c | 6 +-----
1 file changed, 1 insertion(+), 5 deletions(-)

diff --git a/kernel/irq/irqdesc.c b/kernel/irq/irqdesc.c
index 88ac3652fcf2..6c52deb134b9 100644
--- a/kernel/irq/irqdesc.c
+++ b/kernel/irq/irqdesc.c
@@ -882,11 +882,7 @@ __irq_get_desc_lock(unsigned int irq, unsigned long *flags, bool bus,

if (desc) {
if (check & _IRQ_DESC_CHECK) {
- if ((check & _IRQ_DESC_PERCPU) &&
- !irq_settings_is_per_cpu_devid(desc))
- return NULL;
-
- if (!(check & _IRQ_DESC_PERCPU) &&
+ if (!!(check & _IRQ_DESC_PERCPU) !=
irq_settings_is_per_cpu_devid(desc))
return NULL;
}
--
2.34.1