2017-06-19 09:24:44

by Arvind Yadav

[permalink] [raw]
Subject: [PATCH] drm: exynos: hdmi: make of_device_ids const.

of_device_ids are not supposed to change at runtime. All functions
working with of_device_ids provided by <linux/of.h> work with const
of_device_ids. So mark the non-const structs as const.

File size before:
text data bss dec hex filename
12294 1192 0 13486 34ae drivers/gpu/drm/exynos/exynos_hdmi.o

File size after constify hdmi_match_types.
text data bss dec hex filename
13318 176 0 13494 34b6 drivers/gpu/drm/exynos/exynos_hdmi.o

Signed-off-by: Arvind Yadav <[email protected]>
---
drivers/gpu/drm/exynos/exynos_hdmi.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/exynos/exynos_hdmi.c b/drivers/gpu/drm/exynos/exynos_hdmi.c
index 1ff6ab6..624c48d 100644
--- a/drivers/gpu/drm/exynos/exynos_hdmi.c
+++ b/drivers/gpu/drm/exynos/exynos_hdmi.c
@@ -1683,7 +1683,7 @@ static int hdmi_resources_init(struct hdmi_context *hdata)
return hdmi_bridge_init(hdata);
}

-static struct of_device_id hdmi_match_types[] = {
+static const struct of_device_id hdmi_match_types[] = {
{
.compatible = "samsung,exynos4210-hdmi",
.data = &exynos4210_hdmi_driver_data,
--
1.9.1


2017-06-19 10:11:36

by Andrzej Hajda

[permalink] [raw]
Subject: Re: [PATCH] drm: exynos: hdmi: make of_device_ids const.

On 19.06.2017 11:24, Arvind Yadav wrote:
> of_device_ids are not supposed to change at runtime. All functions
> working with of_device_ids provided by <linux/of.h> work with const
> of_device_ids. So mark the non-const structs as const.
>
> File size before:
> text data bss dec hex filename
> 12294 1192 0 13486 34ae drivers/gpu/drm/exynos/exynos_hdmi.o
>
> File size after constify hdmi_match_types.
> text data bss dec hex filename
> 13318 176 0 13494 34b6 drivers/gpu/drm/exynos/exynos_hdmi.o
>
> Signed-off-by: Arvind Yadav <[email protected]>

Reviewed-by: Andrzej Hajda <[email protected]>

--
Regards
Andrzej

> ---
> drivers/gpu/drm/exynos/exynos_hdmi.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/drivers/gpu/drm/exynos/exynos_hdmi.c b/drivers/gpu/drm/exynos/exynos_hdmi.c
> index 1ff6ab6..624c48d 100644
> --- a/drivers/gpu/drm/exynos/exynos_hdmi.c
> +++ b/drivers/gpu/drm/exynos/exynos_hdmi.c
> @@ -1683,7 +1683,7 @@ static int hdmi_resources_init(struct hdmi_context *hdata)
> return hdmi_bridge_init(hdata);
> }
>
> -static struct of_device_id hdmi_match_types[] = {
> +static const struct of_device_id hdmi_match_types[] = {
> {
> .compatible = "samsung,exynos4210-hdmi",
> .data = &exynos4210_hdmi_driver_data,