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* [PATCH] MIPS: OCTEON: fix unreachable code in octeon_irq_init_ciu
@ 2021-01-11 11:36 menglong8.dong
  2021-01-11 11:59 ` Alexander Sverdlin
  0 siblings, 1 reply; 2+ messages in thread
From: menglong8.dong @ 2021-01-11 11:36 UTC (permalink / raw)
  To: paulburton
  Cc: tsbogend, dong.menglong, colin.king, alexander.sverdlin, gustavo,
	ralf, peter.swain, aleksey.makarov, lrosenboim, david.daney,
	linux-mips, linux-kernel

From: Menglong Dong <dong.menglong@zte.com.cn>

The type of 'r' in octeon_irq_init_ciu is 'unsigned int', so 'r < 0'
can't be true.

Fix this by change the type of 'r' and 'i' from 'unsigned int'
to 'int'. As 'i' won't be negative, this change works.

Fixes: 64b139f97c01("MIPS: OCTEON: irq: add CIB and other fixes")
Signed-off-by: Menglong Dong <dong.menglong@zte.com.cn>
---
 arch/mips/cavium-octeon/octeon-irq.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/mips/cavium-octeon/octeon-irq.c b/arch/mips/cavium-octeon/octeon-irq.c
index bd47e15d02c7..be5d4afcd30f 100644
--- a/arch/mips/cavium-octeon/octeon-irq.c
+++ b/arch/mips/cavium-octeon/octeon-irq.c
@@ -1444,7 +1444,7 @@ static void octeon_irq_setup_secondary_ciu2(void)
 static int __init octeon_irq_init_ciu(
 	struct device_node *ciu_node, struct device_node *parent)
 {
-	unsigned int i, r;
+	int i, r;
 	struct irq_chip *chip;
 	struct irq_chip *chip_edge;
 	struct irq_chip *chip_mbox;
-- 
2.17.1


^ permalink raw reply related	[flat|nested] 2+ messages in thread

* Re: [PATCH] MIPS: OCTEON: fix unreachable code in octeon_irq_init_ciu
  2021-01-11 11:36 [PATCH] MIPS: OCTEON: fix unreachable code in octeon_irq_init_ciu menglong8.dong
@ 2021-01-11 11:59 ` Alexander Sverdlin
  0 siblings, 0 replies; 2+ messages in thread
From: Alexander Sverdlin @ 2021-01-11 11:59 UTC (permalink / raw)
  To: menglong8.dong, paulburton
  Cc: tsbogend, dong.menglong, colin.king, gustavo, ralf, peter.swain,
	aleksey.makarov, lrosenboim, david.daney, linux-mips,
	linux-kernel

Hello Menglong!

Thank you for the fix! A small correction below:

On 11/01/2021 12:36, menglong8.dong@gmail.com wrote:
> From: Menglong Dong <dong.menglong@zte.com.cn>
> 
> The type of 'r' in octeon_irq_init_ciu is 'unsigned int', so 'r < 0'
> can't be true.
> 
> Fix this by change the type of 'r' and 'i' from 'unsigned int'
> to 'int'. As 'i' won't be negative, this change works.
> 
> Fixes: 64b139f97c01("MIPS: OCTEON: irq: add CIB and other fixes")

The patch actually fixes my commit 99fbc70f8547
("MIPS: Octeon: irq: Alloc desc before configuring IRQ").
With "Fixes:" tag corrected, you can put my

Reviewed-by: Alexander Sverdlin <alexander.sverdlin@nokia.com>

> Signed-off-by: Menglong Dong <dong.menglong@zte.com.cn>
> ---
>  arch/mips/cavium-octeon/octeon-irq.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/arch/mips/cavium-octeon/octeon-irq.c b/arch/mips/cavium-octeon/octeon-irq.c
> index bd47e15d02c7..be5d4afcd30f 100644
> --- a/arch/mips/cavium-octeon/octeon-irq.c
> +++ b/arch/mips/cavium-octeon/octeon-irq.c
> @@ -1444,7 +1444,7 @@ static void octeon_irq_setup_secondary_ciu2(void)
>  static int __init octeon_irq_init_ciu(
>  	struct device_node *ciu_node, struct device_node *parent)
>  {
> -	unsigned int i, r;
> +	int i, r;
>  	struct irq_chip *chip;
>  	struct irq_chip *chip_edge;
>  	struct irq_chip *chip_mbox;
> 

-- 
Best regards,
Alexander Sverdlin.

^ permalink raw reply	[flat|nested] 2+ messages in thread

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