Re: [PATCH v1] ARM:sunxi:sid: Make use of the of_match_ptr

[Arnd Bergmann]

On Wednesday 07 January 2015 08:41:08 Olliver Schinagl wrote:
> From: Olliver Schinagl <oliver@xxxxxxxxxxx>
> 
> I probably have forgotten to use this macro for the of_match pointer, so
> this patch adds the of_match_ptr macro.
> 
> Signed-off-by: Olliver Schinagl <oliver@xxxxxxxxxxx>
> ---
>  drivers/misc/eeprom/sunxi_sid.c | 3 ++-
>  1 file changed, 2 insertions(+), 1 deletion(-)
> 
> diff --git a/drivers/misc/eeprom/sunxi_sid.c b/drivers/misc/eeprom/sunxi_sid.c
> index 8385177..5a330d9 100644
> --- a/drivers/misc/eeprom/sunxi_sid.c
> +++ b/drivers/misc/eeprom/sunxi_sid.c
> @@ -25,6 +25,7 @@
>  #include <linux/kernel.h>
>  #include <linux/kobject.h>
>  #include <linux/module.h>
> +#include <linux/of.h>
>  #include <linux/of_device.h>
>  #include <linux/platform_device.h>
>  #include <linux/random.h>
> @@ -146,7 +147,7 @@ static struct platform_driver sunxi_sid_driver = {
>         .remove = sunxi_sid_remove,
>         .driver = {
>                 .name = DRV_NAME,
> -               .of_match_table = sunxi_sid_of_match,
> +               .of_match_table = of_match_ptr(sunxi_sid_of_match),
>         },
>  };
>  module_platform_driver(sunxi_sid_driver);

This looks wrong: sunxi_sid_of_match is defined unconditionally, so
now you get a compiler warning if CONFIG_OF is disabled.

The existing code is good, we only add the of_match_ptr() for drivers
that are useful without CONFIG_OF and that want to save a few bytes
in .data size.

	Arnd
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/