[PATCH v1 2/2] irqchip: mips-cpu: Drop unnecessary ack/eoi operations

From: Jiaxun Yang
Date: Thu Jan 16 2020 - 19:17:43 EST


Actually, all MIPS processor interrupt lines are level triggered.
So providing ack/eoi operation could lead to some unexpected results,
Like chained IRQ handeler failed to mask upstream CPU IRQ.

Signed-off-by: Jiaxun Yang <jiaxun.yang@xxxxxxxxxxx>
---
drivers/irqchip/irq-mips-cpu.c | 4 ----
1 file changed, 4 deletions(-)

diff --git a/drivers/irqchip/irq-mips-cpu.c b/drivers/irqchip/irq-mips-cpu.c
index 95d4fd8f7a96..e34f4317bb88 100644
--- a/drivers/irqchip/irq-mips-cpu.c
+++ b/drivers/irqchip/irq-mips-cpu.c
@@ -51,11 +51,9 @@ static inline void mask_mips_irq(struct irq_data *d)

static struct irq_chip mips_cpu_irq_controller = {
.name = "MIPS",
- .irq_ack = mask_mips_irq,
.irq_mask = mask_mips_irq,
.irq_mask_ack = mask_mips_irq,
.irq_unmask = unmask_mips_irq,
- .irq_eoi = unmask_mips_irq,
.irq_disable = mask_mips_irq,
.irq_enable = unmask_mips_irq,
};
@@ -112,11 +110,9 @@ static void mips_mt_send_ipi(struct irq_data *d, unsigned int cpu)
static struct irq_chip mips_mt_cpu_irq_controller = {
.name = "MIPS",
.irq_startup = mips_mt_cpu_irq_startup,
- .irq_ack = mips_mt_cpu_irq_ack,
.irq_mask = mask_mips_irq,
.irq_mask_ack = mips_mt_cpu_irq_ack,
.irq_unmask = unmask_mips_irq,
- .irq_eoi = unmask_mips_irq,
.irq_disable = mask_mips_irq,
.irq_enable = unmask_mips_irq,
#ifdef CONFIG_GENERIC_IRQ_IPI
--
2.24.1