[alsa-devel] [PATCH] ASoC: soc-core: Fix sparse warning in be32_to_cpup() call

Jyri Sarha jsarha at ti.com
Thu Sep 17 11:33:37 CEST 2015


On 09/17/15 12:22, Mark Brown wrote:
> On Thu, Sep 17, 2015 at 11:02:57AM +0300, Jyri Sarha wrote:
>
>>   	val /= sizeof(u32);
>>   	for (i = 0; i < val; i++)
>> -		if (be32_to_cpup(&of_slot_mask[i]))
>> +		if (be32_to_cpup((__be32 *)&of_slot_mask[i]))
>>   			*mask |= (1 << i);
>>
>
> There was no changelog and this is setting off alarm bells since the
> cast just smashes warnings - are you sure we're not missing some other
> annotations and that a cast is the best thing here?
>

You are right, I was a bit hasty. It is better to declare of_slot_mask 
to const __be32 * in the first place, instead of just const u32 * and 
then casting it to something else.

I'll send a new patch shortly.

BR,
Jyri


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