linux-kernel - Re: [PATCH] gpiolib: dump correct irq trigger type

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Message-Id: <200808141524.53853.david-b@pacbell.net>
Date:	Thu, 14 Aug 2008 15:24:53 -0700
From:	David Brownell <david-b@...bell.net>
To:	Dmitry Baryshkov <dbaryshkov@...il.com>
Cc:	linux-kernel@...r.kernel.org
Subject: Re: [PATCH] gpiolib: dump correct irq trigger type

On Sunday 03 August 2008, Dmitry Baryshkov wrote:
> Use desc->action->flags for dumping irq flags, it is populated with
> correct trigger type.

I'll NAK this ... the trigger type is actually a bit problematic,
it hasn't previously been maintained *anywhere* except possibly as
platform-specific code.  And if it were maintained, desc->status
would be the right place:  the flags for each action would otherwise
need to be updated.

However, given recent cleanups in handling of genirq triggering
I think it's time for me to submit a patch to correct that little
oversight.

- Dave


> Signed-off-by: Dmitry Baryshkov <dbaryshkov@...il.com>
> Cc: David Brownell <dbrownell@...rs.sourceforge.net>
> ---
>  drivers/gpio/gpiolib.c |    3 ++-
>  1 files changed, 2 insertions(+), 1 deletions(-)
> 
> diff --git a/drivers/gpio/gpiolib.c b/drivers/gpio/gpiolib.c
> index beaf6b3..a35d19d 100644
> --- a/drivers/gpio/gpiolib.c
> +++ b/drivers/gpio/gpiolib.c
> @@ -2,6 +2,7 @@
>  #include <linux/module.h>
>  #include <linux/irq.h>
>  #include <linux/spinlock.h>
> +#include <linux/interrupt.h>
>  
>  #include <asm/gpio.h>
>  
> @@ -570,7 +571,7 @@ static void gpiolib_dbg_show(struct seq_file *s, struct gpio_chip *chip)
>  			if (irq >= 0 && desc->action) {
>  				char *trigger;
>  
> -				switch (desc->status & IRQ_TYPE_SENSE_MASK) {
> +				switch (desc->action->flags & IRQ_TYPE_SENSE_MASK) {
>  				case IRQ_TYPE_NONE:
>  					trigger = "(default)";
>  					break;
> -- 
> 1.5.6.3
> 


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