Re: [PATCH v2 4/7] ghes_edac: avoid multiple calls to dmi_walk()

[Borislav Petkov]

On Wed, Aug 16, 2017 at 09:59:01AM -0400, Steven Rostedt wrote:
> Should the above be:
> 
>       if (WARN_ON_ONCE(in_nmi()))
>               return;
> 
> To prevent a deadlock? Or do we not care?

Yeah, better this way.

> What's the likelihood of two calls to ghes_edac_register being done
> simultaneously?  Because two calls at the same time will get past this.

Well, that thing gets called per GHES platform device and last time I
checked they do get probed back-to-back but I'll check that again.

Thanks.

-- 
Regards/Gruss,
    Boris.

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