Re: [PATCH] x86/platform/uv: avoid unused variable warning

[Christoph Hellwig]

Instead of that maybe_unused mess please just use good old ifdefs.

>  	if (hubless)
> -		proc_version_fops.open = proc_hubless_open;
> +		proc_create_single("hubless", 0, pde, proc_hubless_show);
>  	else
> -		proc_version_fops.open = proc_hubbed_open;
> +		proc_create_single("hubbed", 0, pde, proc_hubbed_show);
>  }

Or someone could figure out what happens if we turn the
proc_create_single stub into an inline function instead of the
define.  That makes it used at a syntactic level, the big question is
if the compiler is smart enough to optimize away the unused callback
still.