Re: [PATCH 06/12] nouveau: fix function cast warning

Arnd Bergmann
2024-03-26T16:02:33Z

On Tue, Mar 26, 2024, at 16:20, Timur Tabi wrote:
> On Tue, 2024-03-26 at 15:51 +0100, Arnd Bergmann wrote:
>> Calling a function through an incompatible pointer type causes breaks
>> kcfi, so clang warns about the assignment:
>>
>
> ...
>
>> +static void of_fini(void *p)
>> +{
>> +       return kfree(p);
>> +}
>> +
>
> I don't know anything about kfci, but shouldn't this just be "kfree(p)",
> without the "return"?

You are right, fixed this up locally now, waiting for more
comments before I resend patches from my series.

I think it works because of a gcc extension, but isn't
valid C otherwise, and I did not mean to rely on this.

Arnd