Re: [PATCH v4 29/34] x86/amd_nb: Trickle down 'struct cpuinfo_x86' reference

[Ahmed S. Darwish]

On Mon, 18 Aug 2025, kernel test robot wrote:
>
> [    1.202568][    T1] BUG: using smp_processor_id() in preemptible [00000000] code: swapper/0/1
> [ 1.202670][ T1] caller is init_amd_nbs (arch/x86/kernel/amd_nb.c:319)
>

Hmm... This is triggered by:

    static __init int init_amd_nbs(void)
    {
	struct cpuinfo_x86 *c = this_cpu_ptr(&cpu_info);
	...
    }

Since this is all __init code anyway, for the next iteration I'll use
'boot_cpu_data' instead of per-CPU cpu_info access.

Thanks!

--
Ahmed S. Darwish
Linutronix GmbH