linux-kernel - Re: [PATCH v2 3/9] x86/xen: print a warning when HVMOP_get_mem

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Date:   Tue, 5 Oct 2021 15:30:25 -0400
From:   Boris Ostrovsky <boris.ostrovsky@...cle.com>
To:     David Hildenbrand <david@...hat.com>, linux-kernel@...r.kernel.org
Cc:     Andrew Morton <akpm@...ux-foundation.org>,
        Thomas Gleixner <tglx@...utronix.de>,
        Ingo Molnar <mingo@...hat.com>, Borislav Petkov <bp@...en8.de>,
        "H. Peter Anvin" <hpa@...or.com>, Juergen Gross <jgross@...e.com>,
        Stefano Stabellini <sstabellini@...nel.org>,
        "Michael S. Tsirkin" <mst@...hat.com>,
        Jason Wang <jasowang@...hat.com>,
        Dave Young <dyoung@...hat.com>, Baoquan He <bhe@...hat.com>,
        Vivek Goyal <vgoyal@...hat.com>,
        Michal Hocko <mhocko@...e.com>,
        Oscar Salvador <osalvador@...e.de>,
        Mike Rapoport <rppt@...nel.org>,
        "Rafael J. Wysocki" <rafael.j.wysocki@...el.com>, x86@...nel.org,
        xen-devel@...ts.xenproject.org,
        virtualization@...ts.linux-foundation.org,
        kexec@...ts.infradead.org, linux-fsdevel@...r.kernel.org,
        linux-mm@...ck.org
Subject: Re: [PATCH v2 3/9] x86/xen: print a warning when HVMOP_get_mem_type
 fails


On 10/5/21 8:14 AM, David Hildenbrand wrote:
> HVMOP_get_mem_type is not expected to fail, "This call failing is
> indication of something going quite wrong and it would be good to know
> about this." [1]
>
> Let's add a pr_warn_once().
>
> [1] https://lkml.kernel.org/r/3b935aa0-6d85-0bcd-100e-15098add3c4c@oracle.com
>
> Suggested-by: Boris Ostrovsky <boris.ostrovsky@...cle.com>
> Signed-off-by: David Hildenbrand <david@...hat.com>


Reviewed-by: Boris Ostrovsky <boris.ostrovsky@...cle.com>