linux-kernel - Re: [PATCH 1/2 v2] IB/qib: don't use qib_wc_x86

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Message-ID: <9fdd6581efb75511f3259ca663cd1afaee4ae4ac.camel@sipsolutions.net>
Date:   Thu, 01 Dec 2022 10:28:18 +0100
From:   Johannes Berg <johannes@...solutions.net>
To:     Leon Romanovsky <leon@...nel.org>,
        Randy Dunlap <rdunlap@...radead.org>
Cc:     linux-kernel@...r.kernel.org, Jason Gunthorpe <jgg@...dia.com>,
        Dennis Dalessandro <dennis.dalessandro@...nelisnetworks.com>,
        linux-rdma@...r.kernel.org, Jeff Dike <jdike@...toit.com>,
        Richard Weinberger <richard@....at>,
        Anton Ivanov <anton.ivanov@...bridgegreys.com>,
        linux-um@...ts.infradead.org
Subject: Re: [PATCH 1/2 v2] IB/qib: don't use qib_wc_x86_64 for UML

On Thu, 2022-12-01 at 11:22 +0200, Leon Romanovsky wrote:
> 
> > +++ b/drivers/infiniband/hw/qib/Kconfig
> > @@ -3,6 +3,7 @@ config INFINIBAND_QIB
> >  	tristate "Intel PCIe HCA support"
> >  	depends on 64BIT && INFINIBAND_RDMAVT
> >  	depends on PCI
> > +	depends on !UML
> 
> I would advocate to add this line to whole drivers/infiniband.
> None of RDMA code makes sense for UML.
> 

You could argue that one might want to eventually use kunit for some
bits and pieces in there, so it'd make sense to be able to build the
parts that _can_ be built, but I have no idea :)

johannes