* [PATCH] [MIPS] vr41xx: unsigned irq cannot be negative
@ 2008-09-16 0:50 roel kluin
2008-09-16 2:02 ` Yoichi Yuasa
` (2 more replies)
0 siblings, 3 replies; 5+ messages in thread
From: roel kluin @ 2008-09-16 0:50 UTC (permalink / raw
To: ralf, yoichi_yuasa, linux-mips, linux-kernel
unsigned irq cannot be negative
Signed-off-by: Roel Kluin <roel.kluin@gmail.com>
---
diff --git a/arch/mips/vr41xx/common/irq.c b/arch/mips/vr41xx/common/irq.c
index cba36a2..92dd1a0 100644
--- a/arch/mips/vr41xx/common/irq.c
+++ b/arch/mips/vr41xx/common/irq.c
@@ -72,6 +72,7 @@ static void irq_dispatch(unsigned int irq)
cascade = irq_cascade + irq;
if (cascade->get_irq != NULL) {
unsigned int source_irq = irq;
+ int ret;
desc = irq_desc + source_irq;
if (desc->chip->mask_ack)
desc->chip->mask_ack(source_irq);
@@ -79,8 +80,9 @@ static void irq_dispatch(unsigned int irq)
desc->chip->mask(source_irq);
desc->chip->ack(source_irq);
}
- irq = cascade->get_irq(irq);
- if (irq < 0)
+ ret = cascade->get_irq(irq);
+ irq = ret;
+ if (ret < 0)
atomic_inc(&irq_err_count);
else
irq_dispatch(irq);
^ permalink raw reply related [flat|nested] 5+ messages in thread
* Re: [PATCH] [MIPS] vr41xx: unsigned irq cannot be negative
2008-09-16 0:50 [PATCH] [MIPS] vr41xx: unsigned irq cannot be negative roel kluin
@ 2008-09-16 2:02 ` Yoichi Yuasa
2008-09-16 8:58 ` Ralf Baechle
2008-09-16 10:44 ` Sergei Shtylyov
2 siblings, 0 replies; 5+ messages in thread
From: Yoichi Yuasa @ 2008-09-16 2:02 UTC (permalink / raw
To: roel kluin; +Cc: yoichi_yuasa, ralf, linux-mips, linux-kernel
On Mon, 15 Sep 2008 20:50:54 -0400
roel kluin <roel.kluin@gmail.com> wrote:
> unsigned irq cannot be negative
>
> Signed-off-by: Roel Kluin <roel.kluin@gmail.com>
Acked-by: Yoichi Yuasa <yoichi_yuasa@tripeaks.co.jp>
Yoichi
^ permalink raw reply [flat|nested] 5+ messages in thread
* Re: [PATCH] [MIPS] vr41xx: unsigned irq cannot be negative
2008-09-16 0:50 [PATCH] [MIPS] vr41xx: unsigned irq cannot be negative roel kluin
2008-09-16 2:02 ` Yoichi Yuasa
@ 2008-09-16 8:58 ` Ralf Baechle
2008-09-16 10:44 ` Sergei Shtylyov
2 siblings, 0 replies; 5+ messages in thread
From: Ralf Baechle @ 2008-09-16 8:58 UTC (permalink / raw
To: roel kluin; +Cc: yoichi_yuasa, linux-mips, linux-kernel
On Mon, Sep 15, 2008 at 08:50:54PM -0400, roel kluin wrote:
Thanks, applied.
Ralf
^ permalink raw reply [flat|nested] 5+ messages in thread
* Re: [PATCH] [MIPS] vr41xx: unsigned irq cannot be negative
2008-09-16 0:50 [PATCH] [MIPS] vr41xx: unsigned irq cannot be negative roel kluin
2008-09-16 2:02 ` Yoichi Yuasa
2008-09-16 8:58 ` Ralf Baechle
@ 2008-09-16 10:44 ` Sergei Shtylyov
2008-09-17 1:54 ` roel kluin
2 siblings, 1 reply; 5+ messages in thread
From: Sergei Shtylyov @ 2008-09-16 10:44 UTC (permalink / raw
To: roel kluin; +Cc: ralf, yoichi_yuasa, linux-mips, linux-kernel
Hello.
roel kluin wrote:
> unsigned irq cannot be negative
>
> Signed-off-by: Roel Kluin <roel.kluin@gmail.com>
> ---
> diff --git a/arch/mips/vr41xx/common/irq.c b/arch/mips/vr41xx/common/irq.c
> index cba36a2..92dd1a0 100644
> --- a/arch/mips/vr41xx/common/irq.c
> +++ b/arch/mips/vr41xx/common/irq.c
> @@ -72,6 +72,7 @@ static void irq_dispatch(unsigned int irq)
> cascade = irq_cascade + irq;
> if (cascade->get_irq != NULL) {
> unsigned int source_irq = irq;
> + int ret;
>
Keep an empty line after the declaration block please.
> @@ -79,8 +80,9 @@ static void irq_dispatch(unsigned int irq)
> desc->chip->mask(source_irq);
> desc->chip->ack(source_irq);
> }
> - irq = cascade->get_irq(irq);
> - if (irq < 0)
> + ret = cascade->get_irq(irq);
> + irq = ret;
> + if (ret < 0)
> atomic_inc(&irq_err_count);
> else
> irq_dispatch(irq);
>
How about this:
ret = cascade->get_irq(irq);
if (ret < 0)
atomic_inc(&irq_err_count);
else
irq_dispatch(ret);
WBR, Sergei
^ permalink raw reply [flat|nested] 5+ messages in thread
* Re: [PATCH] [MIPS] vr41xx: unsigned irq cannot be negative
2008-09-16 10:44 ` Sergei Shtylyov
@ 2008-09-17 1:54 ` roel kluin
0 siblings, 0 replies; 5+ messages in thread
From: roel kluin @ 2008-09-17 1:54 UTC (permalink / raw
To: Sergei Shtylyov; +Cc: ralf, yoichi_yuasa, linux-mips, linux-kernel
Sergei Shtylyov wrote:
> Hello.
>> @@ -79,8 +80,9 @@ static void irq_dispatch(unsigned int irq)
>> desc->chip->mask(source_irq);
>> desc->chip->ack(source_irq);
>> }
>> - irq = cascade->get_irq(irq);
>> - if (irq < 0)
>> + ret = cascade->get_irq(irq);
>> + irq = ret;
>> + if (ret < 0)
>> atomic_inc(&irq_err_count);
>> else
>> irq_dispatch(irq);
>>
>
> How about this:
>
> ret = cascade->get_irq(irq);
> if (ret < 0)
> atomic_inc(&irq_err_count);
> else
> irq_dispatch(ret);
>
>
> WBR, Sergei
good suggestion, but shouldn't we then remove source_irq
as well?
Signed-off-by: Roel Kluin <roel.kluin@gmail.com>
---
diff --git a/arch/mips/vr41xx/common/irq.c b/arch/mips/vr41xx/common/irq.c
index cba36a2..ab4e327 100644
--- a/arch/mips/vr41xx/common/irq.c
+++ b/arch/mips/vr41xx/common/irq.c
@@ -63,6 +63,7 @@ static void irq_dispatch(unsigned int irq)
{
irq_cascade_t *cascade;
struct irq_desc *desc;
+ int ret;
if (irq >= NR_IRQS) {
atomic_inc(&irq_err_count);
@@ -71,21 +72,22 @@ static void irq_dispatch(unsigned int irq)
cascade = irq_cascade + irq;
if (cascade->get_irq != NULL) {
- unsigned int source_irq = irq;
- desc = irq_desc + source_irq;
+ desc = irq_desc + irq;
if (desc->chip->mask_ack)
- desc->chip->mask_ack(source_irq);
+ desc->chip->mask_ack(irq);
else {
- desc->chip->mask(source_irq);
- desc->chip->ack(source_irq);
+ desc->chip->mask(irq);
+ desc->chip->ack(irq);
}
- irq = cascade->get_irq(irq);
- if (irq < 0)
+
+ ret = cascade->get_irq(irq);
+ if (ret < 0)
atomic_inc(&irq_err_count);
else
- irq_dispatch(irq);
+ irq_dispatch(ret);
+
if (!(desc->status & IRQ_DISABLED) && desc->chip->unmask)
- desc->chip->unmask(source_irq);
+ desc->chip->unmask(irq);
} else
do_IRQ(irq);
}
^ permalink raw reply related [flat|nested] 5+ messages in thread
end of thread, other threads:[~2008-09-16 19:55 UTC | newest]
Thread overview: 5+ messages (download: mbox.gz follow: Atom feed
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2008-09-16 0:50 [PATCH] [MIPS] vr41xx: unsigned irq cannot be negative roel kluin
2008-09-16 2:02 ` Yoichi Yuasa
2008-09-16 8:58 ` Ralf Baechle
2008-09-16 10:44 ` Sergei Shtylyov
2008-09-17 1:54 ` roel kluin
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