Re: [PATCH] char/mwave: make some arrays static const to make object code smaller

From: Colin Ian King
Date: Mon Jul 10 2017 - 11:32:38 EST


On 10/07/17 16:28, Arnd Bergmann wrote:
> On Mon, Jul 10, 2017 at 5:08 PM, Colin King <colin.king@xxxxxxxxxxxxx> wrote:
>> From: Colin Ian King <colin.king@xxxxxxxxxxxxx>
>>
>> Don't populate arrays on the stack but make them static. Makes
>> the object code smaller. Also remove temporary variables that
>> have hard coded array sizes and just use ARRAY_SIZE instead and
>> wrap some lines that are wider than 80 chars to clean up some
>> checkpatch warnings.
>>
>> Before:
>> text data bss dec hex filename
>> 11141 2008 64 13213 339d drivers/char/mwave/smapi.o
>>
>> After:
>> text data bss dec hex filename
>> 10697 2352 64 13113 3339 drivers/char/mwave/smapi.o
>>
>> Signed-off-by: Colin Ian King <colin.king@xxxxxxxxxxxxx>
>
> Acked-by: Arnd Bergmann <arnd@xxxxxxxx>
>
> Did you use a particular tool that found these variables?

I'm using some grep foo and some targeted eyeballing.

>
> I assume you are not actually using the driver ;-)
>