Fix build warnings as below:
drivers/irqchip/irq-loongson-htpic.c: In function 'htpic_reg_init':
>> drivers/irqchip/irq-loongson-htpic.c:62:12: warning: variable 'val' set but not used [-Wunused-but-set-variable]
62 | uint32_t val;
| ^~~
drivers/irqchip/irq-loongson-htpic.c: At top level:
>> drivers/irqchip/irq-loongson-htpic.c:84:12: warning: no previous prototype for 'htpic_of_init' [-Wmissing-prototypes]
84 | int __init htpic_of_init(struct device_node *node, struct device_node *parent)
| ^~~~~~~~~~~~~
Fixes: a93f1d903fa34fc2c5d9fa450bd ("irqchip: Add driver for Loongson-3 HyperTransport PIC controller")
Reported-by: kernel test robot <lkp@xxxxxxxxx>
Signed-off-by: Huacai Chen <chenhuacai@xxxxxxxxxx>
---
drivers/irqchip/irq-loongson-htpic.c | 7 +++----
1 file changed, 3 insertions(+), 4 deletions(-)
diff --git a/drivers/irqchip/irq-loongson-htpic.c b/drivers/irqchip/irq-loongson-htpic.c
index 63f7280..1b801c4 100644
--- a/drivers/irqchip/irq-loongson-htpic.c
+++ b/drivers/irqchip/irq-loongson-htpic.c
@@ -59,11 +59,10 @@ static void htpic_reg_init(void)
int i;
for (i = 0; i < HTINT_NUM_VECTORS; i++) {
- uint32_t val;
-
/* Disable all HT Vectors */
writel(0x0, htpic->base + HTINT_EN_OFF + i * 0x4);
- val = readl(htpic->base + i * 0x4);
+ /* Read back to force write */
+ (void) readl(htpic->base + i * 0x4);
/* Ack all possible pending IRQs */
writel(GENMASK(31, 0), htpic->base + i * 0x4);
}
@@ -81,7 +80,7 @@ struct syscore_ops htpic_syscore_ops = {
.resume = htpic_resume,
};
-int __init htpic_of_init(struct device_node *node, struct device_node *parent)
+static int __init htpic_of_init(struct device_node *node, struct device_node *parent)
{
unsigned int parent_irq[4];
int i, err;
--
2.7.0
