linux-kernel - Re: [PATCH] kvm: fix compilation on s390

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Message-ID: <328789af-23b2-d5d6-2353-2e36e39c7452@redhat.com>
Date:   Fri, 24 May 2019 22:45:55 +0200
From:   Paolo Bonzini <pbonzini@...hat.com>
To:     Michal Kubecek <mkubecek@...e.cz>
Cc:     linux-kernel@...r.kernel.org, kvm@...r.kernel.org
Subject: Re: [PATCH] kvm: fix compilation on s390

On 24/05/19 22:24, Michal Kubecek wrote:
> On Fri, May 24, 2019 at 09:25:57PM +0200, Paolo Bonzini wrote:
>> s390 does not have memremap, even though in this particular case it
>> would be useful.
> 
> This is not completely true: memremap() is built when HAS_IOMEM is
> defined which on s390 depends on CONFIG_PCI. So for "normal" configs
> HAS_IOMEM would be enabled and memremap() would be available. We only
> encountered the build error with a special minimal config for zfcpdump.

I see; I'll change it to "does not always have".

Paolo