Re: [PATCH] x86/numa: Use cpumask_available instead of hardcoded NULL check

[Siddh Raman Pant]

On Wed, 03 Aug 2022 15:12:11 +0530  Ingo Molnar <mingo@xxxxxxxxxx> wrote:
> Oh. So I was daft, as suspected. ;-)
> 
> And I can confirm that while gcc-11 doesn't trigger the warning, gcc-12 
> does:
> 
>   $ make ARCH=x86_64 CC=gcc-11 arch/x86/mm/numa.o
>     CC      arch/x86/mm/numa.o
>   $
> 
>   $ rm -f arch/x86/mm/numa.o
>   $
>   $ make ARCH=x86_64 CC=gcc-12 arch/x86/mm/numa.o
> 
>     CC      arch/x86/mm/numa.o
>   arch/x86/mm/numa.c: In function ‘cpumask_of_node’:
>   arch/x86/mm/numa.c:916:39: error: the comparison will always evaluate as ‘false’ for the address of ‘node_to_cpumask_map’ will never be NULL [-Werror=address]
>     916 |         if (node_to_cpumask_map[node] == NULL) {
> 
> 
> > [...]
> 
> Yeah - and I agree with your fix - will apply it.
> 
> Thanks for your patience :-)
> 
>     Ingo
> 

No worries, and thanks! :)
Siddh