* [PATCH] pinctrl: at91-pio4: use %pr format string for resource
@ 2015-11-17 13:33 ` Ludovic Desroches
0 siblings, 0 replies; 7+ messages in thread
From: Ludovic Desroches @ 2015-11-17 13:33 UTC (permalink / raw)
To: linux-arm-kernel
Hi Arnd,
On Thu, Nov 12, 2015 at 03:15:38PM +0100, Arnd Bergmann wrote:
> resource_size_t may be defined as 32 or 64 bit depending on configuration,
> so it cannot be printed using the normal format strings, as gcc correctly
> warns:
>
> pinctrl-at91-pio4.c: In function 'atmel_pinctrl_probe':
> pinctrl-at91-pio4.c:1003:41: warning: format '%u' expects argument of type 'unsigned int', but argument 5 has type 'resource_size_t {aka long long unsigned int}' [-Wformat=]
> dev_dbg(dev, "bank %i: hwirq=%u\n", i, res->start);
>
> This changes the format string to use the special "%pr" format
> string that prints a resource, and changes the arguments so we
> the resource structure directly. I'm also swapping out the arguments
> to match the text in the format string.
>
I agree the format change but not swapping out the arguments. Why do you have
the feeling they are not matching the text?
Few lines before you have:
res = platform_get_resource(pdev, IORESOURCE_IRQ, i);
atmel_pioctrl->irqs[i] = res->start;
Each bank has its own irq line this is what I want to print with hwirq.
Of course it assumes that interrupts are declared in the right order.
Regards
Ludovic
> Signed-off-by: Arnd Bergmann <arnd@arndb.de>
>
> diff --git a/drivers/pinctrl/pinctrl-at91-pio4.c b/drivers/pinctrl/pinctrl-at91-pio4.c
> index 33edd07d9149..23217e990eaf 100644
> --- a/drivers/pinctrl/pinctrl-at91-pio4.c
> +++ b/drivers/pinctrl/pinctrl-at91-pio4.c
> @@ -1000,7 +1000,7 @@ static int atmel_pinctrl_probe(struct platform_device *pdev)
> atmel_pioctrl->irqs[i] = res->start;
> irq_set_chained_handler(res->start, atmel_gpio_irq_handler);
> irq_set_handler_data(res->start, atmel_pioctrl);
> - dev_dbg(dev, "bank %i: hwirq=%u\n", i, res->start);
> + dev_dbg(dev, "bank %pr: hwirq=%u\n", res, i);
> }
>
> atmel_pioctrl->irq_domain = irq_domain_add_linear(dev->of_node,
>
^ permalink raw reply [flat|nested] 7+ messages in thread* Re: [PATCH] pinctrl: at91-pio4: use %pr format string for resource
@ 2015-11-17 13:33 ` Ludovic Desroches
0 siblings, 0 replies; 7+ messages in thread
From: Ludovic Desroches @ 2015-11-17 13:33 UTC (permalink / raw)
To: Arnd Bergmann
Cc: Linus Walleij, linux-gpio, Ludovic Desroches, linux-arm-kernel,
linux-kernel
Hi Arnd,
On Thu, Nov 12, 2015 at 03:15:38PM +0100, Arnd Bergmann wrote:
> resource_size_t may be defined as 32 or 64 bit depending on configuration,
> so it cannot be printed using the normal format strings, as gcc correctly
> warns:
>
> pinctrl-at91-pio4.c: In function 'atmel_pinctrl_probe':
> pinctrl-at91-pio4.c:1003:41: warning: format '%u' expects argument of type 'unsigned int', but argument 5 has type 'resource_size_t {aka long long unsigned int}' [-Wformat=]
> dev_dbg(dev, "bank %i: hwirq=%u\n", i, res->start);
>
> This changes the format string to use the special "%pr" format
> string that prints a resource, and changes the arguments so we
> the resource structure directly. I'm also swapping out the arguments
> to match the text in the format string.
>
I agree the format change but not swapping out the arguments. Why do you have
the feeling they are not matching the text?
Few lines before you have:
res = platform_get_resource(pdev, IORESOURCE_IRQ, i);
atmel_pioctrl->irqs[i] = res->start;
Each bank has its own irq line this is what I want to print with hwirq.
Of course it assumes that interrupts are declared in the right order.
Regards
Ludovic
> Signed-off-by: Arnd Bergmann <arnd@arndb.de>
>
> diff --git a/drivers/pinctrl/pinctrl-at91-pio4.c b/drivers/pinctrl/pinctrl-at91-pio4.c
> index 33edd07d9149..23217e990eaf 100644
> --- a/drivers/pinctrl/pinctrl-at91-pio4.c
> +++ b/drivers/pinctrl/pinctrl-at91-pio4.c
> @@ -1000,7 +1000,7 @@ static int atmel_pinctrl_probe(struct platform_device *pdev)
> atmel_pioctrl->irqs[i] = res->start;
> irq_set_chained_handler(res->start, atmel_gpio_irq_handler);
> irq_set_handler_data(res->start, atmel_pioctrl);
> - dev_dbg(dev, "bank %i: hwirq=%u\n", i, res->start);
> + dev_dbg(dev, "bank %pr: hwirq=%u\n", res, i);
> }
>
> atmel_pioctrl->irq_domain = irq_domain_add_linear(dev->of_node,
>
^ permalink raw reply [flat|nested] 7+ messages in thread* Re: [PATCH] pinctrl: at91-pio4: use %pr format string for resource
2015-11-17 13:33 ` Ludovic Desroches
@ 2015-11-18 15:18 ` Arnd Bergmann
-1 siblings, 0 replies; 7+ messages in thread
From: Arnd Bergmann @ 2015-11-18 15:18 UTC (permalink / raw)
To: Ludovic Desroches
Cc: Linus Walleij, linux-gpio, linux-arm-kernel, linux-kernel
On Tuesday 17 November 2015 14:33:41 Ludovic Desroches wrote:
> Hi Arnd,
>
> On Thu, Nov 12, 2015 at 03:15:38PM +0100, Arnd Bergmann wrote:
> > resource_size_t may be defined as 32 or 64 bit depending on configuration,
> > so it cannot be printed using the normal format strings, as gcc correctly
> > warns:
> >
> > pinctrl-at91-pio4.c: In function 'atmel_pinctrl_probe':
> > pinctrl-at91-pio4.c:1003:41: warning: format '%u' expects argument of type 'unsigned int', but argument 5 has type 'resource_size_t {aka long long unsigned int}' [-Wformat=]
> > dev_dbg(dev, "bank %i: hwirq=%u\n", i, res->start);
> >
> > This changes the format string to use the special "%pr" format
> > string that prints a resource, and changes the arguments so we
> > the resource structure directly. I'm also swapping out the arguments
> > to match the text in the format string.
> >
>
> I agree the format change but not swapping out the arguments. Why do you have
> the feeling they are not matching the text?
>
> Few lines before you have:
> res = platform_get_resource(pdev, IORESOURCE_IRQ, i);
> atmel_pioctrl->irqs[i] = res->start;
>
> Each bank has its own irq line this is what I want to print with hwirq.
> Of course it assumes that interrupts are declared in the right order.
Sorry, my mistake. You are completely right and I don't know how I concluded
it was wrong. It's possible I got confused by the 'hwirq' string and thought
it could not refer to the resource, which is a virtual irq number rather than
a hwirq.
Anyway, I'll submit a new version with this fixup folded in:
@@ -1000,7 +1000,7 @@ static int atmel_pinctrl_probe(struct platform_device *pdev)
atmel_pioctrl->irqs[i] = res->start;
irq_set_chained_handler(res->start, atmel_gpio_irq_handler);
irq_set_handler_data(res->start, atmel_pioctrl);
- dev_dbg(dev, "bank %pr: hwirq=%u\n", res, i);
+ dev_dbg(dev, "bank %i: irq=%pr\n", i, res);
}
atmel_pioctrl->irq_domain = irq_domain_add_linear(dev->of_node,
Arnd
^ permalink raw reply [flat|nested] 7+ messages in thread* [PATCH] pinctrl: at91-pio4: use %pr format string for resource
@ 2015-11-18 15:18 ` Arnd Bergmann
0 siblings, 0 replies; 7+ messages in thread
From: Arnd Bergmann @ 2015-11-18 15:18 UTC (permalink / raw)
To: linux-arm-kernel
On Tuesday 17 November 2015 14:33:41 Ludovic Desroches wrote:
> Hi Arnd,
>
> On Thu, Nov 12, 2015 at 03:15:38PM +0100, Arnd Bergmann wrote:
> > resource_size_t may be defined as 32 or 64 bit depending on configuration,
> > so it cannot be printed using the normal format strings, as gcc correctly
> > warns:
> >
> > pinctrl-at91-pio4.c: In function 'atmel_pinctrl_probe':
> > pinctrl-at91-pio4.c:1003:41: warning: format '%u' expects argument of type 'unsigned int', but argument 5 has type 'resource_size_t {aka long long unsigned int}' [-Wformat=]
> > dev_dbg(dev, "bank %i: hwirq=%u\n", i, res->start);
> >
> > This changes the format string to use the special "%pr" format
> > string that prints a resource, and changes the arguments so we
> > the resource structure directly. I'm also swapping out the arguments
> > to match the text in the format string.
> >
>
> I agree the format change but not swapping out the arguments. Why do you have
> the feeling they are not matching the text?
>
> Few lines before you have:
> res = platform_get_resource(pdev, IORESOURCE_IRQ, i);
> atmel_pioctrl->irqs[i] = res->start;
>
> Each bank has its own irq line this is what I want to print with hwirq.
> Of course it assumes that interrupts are declared in the right order.
Sorry, my mistake. You are completely right and I don't know how I concluded
it was wrong. It's possible I got confused by the 'hwirq' string and thought
it could not refer to the resource, which is a virtual irq number rather than
a hwirq.
Anyway, I'll submit a new version with this fixup folded in:
@@ -1000,7 +1000,7 @@ static int atmel_pinctrl_probe(struct platform_device *pdev)
atmel_pioctrl->irqs[i] = res->start;
irq_set_chained_handler(res->start, atmel_gpio_irq_handler);
irq_set_handler_data(res->start, atmel_pioctrl);
- dev_dbg(dev, "bank %pr: hwirq=%u\n", res, i);
+ dev_dbg(dev, "bank %i: irq=%pr\n", i, res);
}
atmel_pioctrl->irq_domain = irq_domain_add_linear(dev->of_node,
Arnd
^ permalink raw reply [flat|nested] 7+ messages in thread