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Date:   Mon, 10 Apr 2023 10:31:30 -0600
From:   Peter Gonda <pgonda@...gle.com>
To:     Nikunj A Dadhania <nikunj@....com>
Cc:     linux-kernel@...r.kernel.org, x86@...nel.org, bp@...en8.de,
        thomas.lendacky@....com, dionnaglaze@...gle.com, seanjc@...gle.com,
        pbonzini@...hat.com, michael.roth@....com, ketanch@...k.ac.in
Subject: Re: [PATCH v2 04/11] virt: sev-guest: Add simplified helper to assign vmpck

>
> -static u8 *get_vmpck(int id, struct snp_secrets_page_layout *layout, u32 **seqno)
> +bool snp_assign_vmpck(struct snp_guest_dev *dev, int vmpck_id)
>  {
> -       u8 *key = NULL;
> +       if (WARN_ON(vmpck_id > 3))
> +               return false;

Should vmpck_id be a uint to match the module parameter or should we
check if vmpck_id < 0 ?

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