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Groups > linux.kernel > #1683963 > unrolled thread

[PATCH] mfd: ab8500-core: constify attribute_group structures.

Started byArvind Yadav <arvind.yadav.cs@gmail.com>
First post2017-07-10 07:40 +0200
Last post2017-07-17 16:40 +0200
Articles 2 — 2 participants

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  [PATCH] mfd: ab8500-core: constify attribute_group structures. Arvind Yadav <arvind.yadav.cs@gmail.com> - 2017-07-10 07:40 +0200
    Re: [PATCH] mfd: ab8500-core: constify attribute_group structures. Lee Jones <lee.jones@linaro.org> - 2017-07-17 16:40 +0200

#1683963 — [PATCH] mfd: ab8500-core: constify attribute_group structures.

FromArvind Yadav <arvind.yadav.cs@gmail.com>
Date2017-07-10 07:40 +0200
Subject[PATCH] mfd: ab8500-core: constify attribute_group structures.
Message-ID<u1zAl-Th-5@gated-at.bofh.it>
attribute_groups are not supposed to change at runtime. All functions
working with attribute_groups provided by <linux/sysfs.h> work with const
attribute_group. So mark the non-const structs as const.

File size before:
   text	   data	    bss	    dec	    hex	filename
  16298	   1009	    184	  17491	   4453	drivers/mfd/ab8500-core.o

File size After adding 'const':
   text	   data	    bss	    dec	    hex	filename
  16490	    817	    184	  17491	   4453	drivers/mfd/ab8500-core.o

Signed-off-by: Arvind Yadav <arvind.yadav.cs@gmail.com>
---
 drivers/mfd/ab8500-core.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/mfd/ab8500-core.c b/drivers/mfd/ab8500-core.c
index 8511c06..30d09d1 100644
--- a/drivers/mfd/ab8500-core.c
+++ b/drivers/mfd/ab8500-core.c
@@ -1059,15 +1059,15 @@ static DEVICE_ATTR(dbbrstn, S_IRUGO | S_IWUSR,
 	NULL,
 };
 
-static struct attribute_group ab8500_attr_group = {
+static const struct attribute_group ab8500_attr_group = {
 	.attrs	= ab8500_sysfs_entries,
 };
 
-static struct attribute_group ab8505_attr_group = {
+static const struct attribute_group ab8505_attr_group = {
 	.attrs	= ab8505_sysfs_entries,
 };
 
-static struct attribute_group ab9540_attr_group = {
+static const struct attribute_group ab9540_attr_group = {
 	.attrs	= ab9540_sysfs_entries,
 };
 
-- 
1.9.1

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#1689113

FromLee Jones <lee.jones@linaro.org>
Date2017-07-17 16:40 +0200
Message-ID<u4flM-6ht-19@gated-at.bofh.it>
In reply to#1683963
On Mon, 10 Jul 2017, Arvind Yadav wrote:

> attribute_groups are not supposed to change at runtime. All functions
> working with attribute_groups provided by <linux/sysfs.h> work with const
> attribute_group. So mark the non-const structs as const.
> 
> File size before:
>    text	   data	    bss	    dec	    hex	filename
>   16298	   1009	    184	  17491	   4453	drivers/mfd/ab8500-core.o
> 
> File size After adding 'const':
>    text	   data	    bss	    dec	    hex	filename
>   16490	    817	    184	  17491	   4453	drivers/mfd/ab8500-core.o
> 
> Signed-off-by: Arvind Yadav <arvind.yadav.cs@gmail.com>
> ---
>  drivers/mfd/ab8500-core.c | 6 +++---
>  1 file changed, 3 insertions(+), 3 deletions(-)

Applied, thanks.

> diff --git a/drivers/mfd/ab8500-core.c b/drivers/mfd/ab8500-core.c
> index 8511c06..30d09d1 100644
> --- a/drivers/mfd/ab8500-core.c
> +++ b/drivers/mfd/ab8500-core.c
> @@ -1059,15 +1059,15 @@ static DEVICE_ATTR(dbbrstn, S_IRUGO | S_IWUSR,
>  	NULL,
>  };
>  
> -static struct attribute_group ab8500_attr_group = {
> +static const struct attribute_group ab8500_attr_group = {
>  	.attrs	= ab8500_sysfs_entries,
>  };
>  
> -static struct attribute_group ab8505_attr_group = {
> +static const struct attribute_group ab8505_attr_group = {
>  	.attrs	= ab8505_sysfs_entries,
>  };
>  
> -static struct attribute_group ab9540_attr_group = {
> +static const struct attribute_group ab9540_attr_group = {
>  	.attrs	= ab9540_sysfs_entries,
>  };
>  

-- 
Lee Jones
Linaro STMicroelectronics Landing Team Lead
Linaro.org │ Open source software for ARM SoCs
Follow Linaro: Facebook | Twitter | Blog

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