[PATCH] irq/generic-chip: fix the irq_chip name for /proc/interrupts

From: Keguang Zhang
Date: Mon Sep 25 2023 - 08:18:14 EST


irq_init_generic_chip() only sets name for the first chip type,
which will lead to empty names for other chip types.
Eventually, these names will be shown as "-" /proc/interrupts.

This patch sets name for all chip types by default.

Signed-off-by: Keguang Zhang <keguang.zhang@xxxxxxxxx>
---
kernel/irq/generic-chip.c | 6 +++++-
1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/kernel/irq/generic-chip.c b/kernel/irq/generic-chip.c
index c653cd31548d..81ecca08caad 100644
--- a/kernel/irq/generic-chip.c
+++ b/kernel/irq/generic-chip.c
@@ -219,11 +219,15 @@ void irq_init_generic_chip(struct irq_chip_generic *gc, const char *name,
int num_ct, unsigned int irq_base,
void __iomem *reg_base, irq_flow_handler_t handler)
{
+ struct irq_chip_type *ct = gc->chip_types;
+ int i;
+
raw_spin_lock_init(&gc->lock);
gc->num_ct = num_ct;
gc->irq_base = irq_base;
gc->reg_base = reg_base;
- gc->chip_types->chip.name = name;
+ for (i = 0; i < num_ct; i++)
+ ct[i].chip.name = name;
gc->chip_types->handler = handler;
}


base-commit: 8fff9184d1b5810dca5dd1a02726d4f844af88fc
--
2.39.2