Re: [PATCH] drivers: remoteproc: constify rproc_ops structures

From: Bhumika Goyal
Date: Sat Dec 31 2016 - 05:44:07 EST


On Fri, Dec 30, 2016 at 5:36 PM, Bjorn Andersson
<bjorn.andersson@xxxxxxxxxx> wrote:
> On Sat 17 Dec 03:29 PST 2016, Bhumika Goyal wrote:
>
>> Declare rproc_ops structures as const as they are only passed as an
>> argument to the function rproc_alloc. This argument is of type const, so
>> rproc_ops structures having this property can be declared const too.
>> Done using Coccinelle:
>>
>> @r1 disable optional_qualifier @
>> identifier i;
>> position p;
>> @@
>> static struct rproc_ops i@p = {...};
>>
>> @ok1@
>> identifier r1.i;
>> position p;
>> @@
>> rproc_alloc(...,&i@p,...)
>>
>> @bad@
>> position p!={r1.p,ok1.p};
>> identifier r1.i;
>> @@
>> i@p
>>
>> @depends on !bad disable optional_qualifier@
>> identifier r1.i;
>> @@
>> +const
>> struct rproc_ops i;
>>
>> File sizes before:
>> text data bss dec hex filename
>> 1258 416 0 1674 68a remoteproc/omap_remoteproc.o
>> 2402 240 0 2642 a52 remoteproc/st_remoteproc.o
>> 2064 272 0 2336 920 remoteproc/st_slim_rproc.o
>> 2160 240 0 2400 960 remoteproc/wkup_m3_rproc.o
>>
>> File sizes after:
>> text data bss dec hex filename
>> 1297 368 0 1665 681 remoteproc/omap_remoteproc.o
>> 2434 192 0 2626 a42 remoteproc/st_remoteproc.o
>> 2112 240 0 2352 930 remoteproc/st_slim_rproc.o
>> 2200 192 0 2392 958 remoteproc/wkup_m3_rproc.o
>>
>> Signed-off-by: Bhumika Goyal <bhumirks@xxxxxxxxx>
>
> Thanks Bhumika, this looks good.
>
> But as Suman already asked. Is there any reason why da8xx_remoteproc.c
> did not get updated? It looks like the same change would apply there.
>
>

The reason I did not sent a patch for that driver is because the .o
file is not obtained. This is output I get when I try to compile the
da8xx_remoteproc.o file.

drivers/remoteproc/da8xx_remoteproc.c:22:72: fatal error:
mach/clock.h: No such file or directory
#include <mach/clock.h> /* for davinci_clk_reset_assert/deassert() */
^
compilation terminated.
make[1]: *** [drivers/remoteproc/da8xx_remoteproc.o] Error 1
make: *** [drivers/remoteproc/da8xx_remoteproc.o] Error 2

I also tried running the commands make.cross ARCH=arm allyesconfig;
make.cross ARCH=arm drivers/remoteproc/da8xx_remoteproc.o but still
the error remains the same.

Could you please suggest me what to do in this case?

Thanks,
Bhumika

> Unless I'm missing something, please update the patch and I'll be happy
> to apply it.
>
> Regards,
> Bjorn