[PATCH v2 01/19] ARM: i.MX: boot: Coalesce copy-pasted code

[Sascha Hauer]

On Mon, Apr 16, 2018 at 12:31:39PM -0700, Andrey Smirnov wrote:
> All of the instances of imx*_boot_save_loc() do exactly the same thing with
> the only difference being SoC-specific imx*_get_boot_source
> call. Convert the code into a generic function taking function pointer
> + a macro to take care of the boilerplate.
> 
> Signed-off-by: Andrey Smirnov <andrew.smirnov at gmail.com>
> ---
>  arch/arm/mach-imx/boot.c | 85 ++++++++++--------------------------------------
>  1 file changed, 17 insertions(+), 68 deletions(-)
> 
> +imx_boot_save_loc(void (*get_boot_source)(enum bootsource *, int *))
>  {
>  	enum bootsource src = BOOTSOURCE_UNKNOWN;
>  	int instance = BOOTSOURCE_INSTANCE_UNKNOWN;
>  
> -	imx7_get_boot_source(&src, &instance);
> +	get_boot_source(&src, &instance);
>  
>  	bootsource_set(src);
>  	bootsource_set_instance(instance);
>  }
> +
> +#define IMX_BOOT_SAVE_LOC(soc)					\
> +	void soc##_boot_save_loc(void)				\
> +	{							\
> +		imx_boot_save_loc(soc##_get_boot_source);	\
> +	}
> +
> +IMX_BOOT_SAVE_LOC(imx25)
> +IMX_BOOT_SAVE_LOC(imx27)
> +IMX_BOOT_SAVE_LOC(imx35)
> +IMX_BOOT_SAVE_LOC(imx51)
> +IMX_BOOT_SAVE_LOC(imx53)
> +IMX_BOOT_SAVE_LOC(imx6)
> +IMX_BOOT_SAVE_LOC(imx7)

I do not really like this patch. Yes, it saves a few lines of code, but
with the cost of making it less readable.

Sascha

-- 
Pengutronix e.K.                           |                             |
Industrial Linux Solutions                 | http://www.pengutronix.de/  |
Peiner Str. 6-8, 31137 Hildesheim, Germany | Phone: +49-5121-206917-0    |
Amtsgericht Hildesheim, HRA 2686           | Fax:   +49-5121-206917-5555 |