* [PATCH] gpio: 104-idi-48e: make array register_offset static, makes object smaller
@ 2019-10-06 14:42 Colin King
2019-10-06 15:07 ` William Breathitt Gray
0 siblings, 1 reply; 3+ messages in thread
From: Colin King @ 2019-10-06 14:42 UTC (permalink / raw)
To: William Breathitt Gray, Linus Walleij, Bartosz Golaszewski, linux-gpio
Cc: kernel-janitors, linux-kernel
From: Colin Ian King <colin.king@canonical.com>
Don't populate the array register_offset on the stack but instead make it
static. Makes the object code smaller by 63 bytes. Also add the int type
specifier to clean up a checkpatch warning.
Before:
text data bss dec hex filename
9212 5712 1408 16332 3fcc drivers/gpio/gpio-104-idi-48.o
After:
text data bss dec hex filename
9085 5776 1408 16269 3f8d drivers/gpio/gpio-104-idi-48.o
(gcc version 9.2.1, amd64)
Signed-off-by: Colin Ian King <colin.king@canonical.com>
---
drivers/gpio/gpio-104-idi-48.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/gpio/gpio-104-idi-48.c b/drivers/gpio/gpio-104-idi-48.c
index ff53887bdaa8..c95c93ec0bd7 100644
--- a/drivers/gpio/gpio-104-idi-48.c
+++ b/drivers/gpio/gpio-104-idi-48.c
@@ -65,7 +65,7 @@ static int idi_48_gpio_get(struct gpio_chip *chip, unsigned offset)
{
struct idi_48_gpio *const idi48gpio = gpiochip_get_data(chip);
unsigned i;
- const unsigned register_offset[6] = { 0, 1, 2, 4, 5, 6 };
+ static const unsigned int register_offset[6] = { 0, 1, 2, 4, 5, 6 };
unsigned base_offset;
unsigned mask;
--
2.20.1
^ permalink raw reply related [flat|nested] 3+ messages in thread
* Re: [PATCH] gpio: 104-idi-48e: make array register_offset static, makes object smaller
2019-10-06 14:42 [PATCH] gpio: 104-idi-48e: make array register_offset static, makes object smaller Colin King
@ 2019-10-06 15:07 ` William Breathitt Gray
2019-10-09 16:22 ` Bartosz Golaszewski
0 siblings, 1 reply; 3+ messages in thread
From: William Breathitt Gray @ 2019-10-06 15:07 UTC (permalink / raw)
To: Colin King
Cc: Linus Walleij, Bartosz Golaszewski, linux-gpio, kernel-janitors,
linux-kernel
On Sun, Oct 06, 2019 at 03:42:56PM +0100, Colin King wrote:
> From: Colin Ian King <colin.king@canonical.com>
>
> Don't populate the array register_offset on the stack but instead make it
> static. Makes the object code smaller by 63 bytes. Also add the int type
> specifier to clean up a checkpatch warning.
>
> Before:
> text data bss dec hex filename
> 9212 5712 1408 16332 3fcc drivers/gpio/gpio-104-idi-48.o
>
> After:
> text data bss dec hex filename
> 9085 5776 1408 16269 3f8d drivers/gpio/gpio-104-idi-48.o
>
> (gcc version 9.2.1, amd64)
>
> Signed-off-by: Colin Ian King <colin.king@canonical.com>
> ---
> drivers/gpio/gpio-104-idi-48.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/drivers/gpio/gpio-104-idi-48.c b/drivers/gpio/gpio-104-idi-48.c
> index ff53887bdaa8..c95c93ec0bd7 100644
> --- a/drivers/gpio/gpio-104-idi-48.c
> +++ b/drivers/gpio/gpio-104-idi-48.c
> @@ -65,7 +65,7 @@ static int idi_48_gpio_get(struct gpio_chip *chip, unsigned offset)
> {
> struct idi_48_gpio *const idi48gpio = gpiochip_get_data(chip);
> unsigned i;
> - const unsigned register_offset[6] = { 0, 1, 2, 4, 5, 6 };
> + static const unsigned int register_offset[6] = { 0, 1, 2, 4, 5, 6 };
> unsigned base_offset;
> unsigned mask;
>
> --
> 2.20.1
Acked-by: William Breathitt Gray <vilhelm.gray@gmail.com>
^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: [PATCH] gpio: 104-idi-48e: make array register_offset static, makes object smaller
2019-10-06 15:07 ` William Breathitt Gray
@ 2019-10-09 16:22 ` Bartosz Golaszewski
0 siblings, 0 replies; 3+ messages in thread
From: Bartosz Golaszewski @ 2019-10-09 16:22 UTC (permalink / raw)
To: William Breathitt Gray
Cc: Colin King, Linus Walleij, linux-gpio, kernel-janitors, LKML
niedz., 6 paź 2019 o 17:08 William Breathitt Gray
<vilhelm.gray@gmail.com> napisał(a):
>
> On Sun, Oct 06, 2019 at 03:42:56PM +0100, Colin King wrote:
> > From: Colin Ian King <colin.king@canonical.com>
> >
> > Don't populate the array register_offset on the stack but instead make it
> > static. Makes the object code smaller by 63 bytes. Also add the int type
> > specifier to clean up a checkpatch warning.
> >
> > Before:
> > text data bss dec hex filename
> > 9212 5712 1408 16332 3fcc drivers/gpio/gpio-104-idi-48.o
> >
> > After:
> > text data bss dec hex filename
> > 9085 5776 1408 16269 3f8d drivers/gpio/gpio-104-idi-48.o
> >
> > (gcc version 9.2.1, amd64)
> >
> > Signed-off-by: Colin Ian King <colin.king@canonical.com>
> > ---
> > drivers/gpio/gpio-104-idi-48.c | 2 +-
> > 1 file changed, 1 insertion(+), 1 deletion(-)
> >
> > diff --git a/drivers/gpio/gpio-104-idi-48.c b/drivers/gpio/gpio-104-idi-48.c
> > index ff53887bdaa8..c95c93ec0bd7 100644
> > --- a/drivers/gpio/gpio-104-idi-48.c
> > +++ b/drivers/gpio/gpio-104-idi-48.c
> > @@ -65,7 +65,7 @@ static int idi_48_gpio_get(struct gpio_chip *chip, unsigned offset)
> > {
> > struct idi_48_gpio *const idi48gpio = gpiochip_get_data(chip);
> > unsigned i;
> > - const unsigned register_offset[6] = { 0, 1, 2, 4, 5, 6 };
> > + static const unsigned int register_offset[6] = { 0, 1, 2, 4, 5, 6 };
> > unsigned base_offset;
> > unsigned mask;
> >
> > --
> > 2.20.1
>
> Acked-by: William Breathitt Gray <vilhelm.gray@gmail.com>
Applied for next.
Bart
^ permalink raw reply [flat|nested] 3+ messages in thread
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2019-10-06 14:42 [PATCH] gpio: 104-idi-48e: make array register_offset static, makes object smaller Colin King
2019-10-06 15:07 ` William Breathitt Gray
2019-10-09 16:22 ` Bartosz Golaszewski
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