Groups | Search | Server Info | Keyboard shortcuts | Login | Register [http] [https] [nntp] [nntps]


Groups > linux.kernel > #1723341

Re: [PATCH] hwmon: (asc7621): make several arrays static const

From Guenter Roeck <linux@roeck-us.net>
Newsgroups linux.kernel
Subject Re: [PATCH] hwmon: (asc7621): make several arrays static const
Date 2017-08-30 15:40 +0200
Message-ID <ukbnP-rR-13@gated-at.bofh.it> (permalink)
References <uk6Hx-5Y8-29@gated-at.bofh.it>
Organization linux.* mail to news gateway

Show all headers | View raw


On 08/30/2017 01:32 AM, Colin King wrote:
> From: Colin Ian King <colin.king@canonical.com>
> 
> Don't populate the arrays on the stack, instead make them static.
> Makes the object code smaller by over 950 bytes:
> 
> Before:
>     text	   data	    bss	    dec	    hex	filename
>    26144	  18768	    352	  45264	   b0d0	drivers/hwmon/asc7621.o
> 
> After:
>     text	   data	    bss	    dec	    hex	filename
>    25029	  18928	    352	  44309	   ad15	drivers/hwmon/asc7621.o
> 
> Signed-off-by: Colin Ian King <colin.king@canonical.com>

Applied to hwmon-next.

Thanks,
Guenter

> ---
>   drivers/hwmon/asc7621.c | 4 ++--
>   1 file changed, 2 insertions(+), 2 deletions(-)
> 
> diff --git a/drivers/hwmon/asc7621.c b/drivers/hwmon/asc7621.c
> index c77644d45a02..4875e99b59c9 100644
> --- a/drivers/hwmon/asc7621.c
> +++ b/drivers/hwmon/asc7621.c
> @@ -512,7 +512,7 @@ static ssize_t show_pwm_ac(struct device *dev,
>   {
>   	SETUP_SHOW_DATA_PARAM(dev, attr);
>   	u8 config, altbit, regval;
> -	const u8 map[] = {
> +	static const u8 map[] = {
>   		0x01, 0x02, 0x04, 0x1f, 0x00, 0x06, 0x07, 0x10,
>   		0x08, 0x0f, 0x1f, 0x1f, 0x1f, 0x1f, 0x1f, 0x1f
>   	};
> @@ -533,7 +533,7 @@ static ssize_t store_pwm_ac(struct device *dev,
>   	SETUP_STORE_DATA_PARAM(dev, attr);
>   	unsigned long reqval;
>   	u8 currval, config, altbit, newval;
> -	const u16 map[] = {
> +	static const u16 map[] = {
>   		0x04, 0x00, 0x01, 0xff, 0x02, 0xff, 0x05, 0x06,
>   		0x08, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x0f,
>   		0x07, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
> 

Back to linux.kernel | Previous | NextPrevious in thread | Find similar | Unroll thread


Thread

[PATCH] hwmon: (asc7621): make several arrays static const Colin King <colin.king@canonical.com> - 2017-08-30 10:40 +0200
  Re: [PATCH] hwmon: (asc7621): make several arrays static const Guenter Roeck <linux@roeck-us.net> - 2017-08-30 15:40 +0200

csiph-web