Re: [PATCH v2 5/7] EDAC/ghes: Prevent chipset-specific edac from loading after ghes_edac is registered

[Borislav Petkov]

On Fri, Aug 19, 2022 at 05:48:39PM +0000, Kani, Toshi wrote:
> This flag is a static variable, say ghes_present, which is set to
> false initially. ghes_probe() sets it to true. ghes_edac_preferred()
> (aka. ghes_get_device) checks this flag at beginning and returns false
> if this flag is false. It does not get unlatched since ACPI GHES table
> is static.

What is that flag needed for at all?

There are two possibilities:

1. ghes_probe() succeeds. ghes_edac loads properly and other drivers use
ghes_get_devices() to know when to load.

2. ghes_probe() fails and that is caught during platform testing of all
those platforms who wish to use ghes_edac. BIOS is fixed and goto 1.

No need for funky flags whatsoever.

-- 
Regards/Gruss,
    Boris.

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