linux-kernel - Re: [PATCH v2] infiniband: disable IB HW for UML

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Date:   Sun, 4 Dec 2022 08:10:14 -0800
From:   Randy Dunlap <rdunlap@...radead.org>
To:     Leon Romanovsky <leon@...nel.org>
Cc:     linux-kernel@...r.kernel.org, Jason Gunthorpe <jgg@...dia.com>,
        Dennis Dalessandro <dennis.dalessandro@...nelisnetworks.com>,
        Christoph Hellwig <hch@...radead.org>,
        linux-rdma@...r.kernel.org, Jeff Dike <jdike@...toit.com>,
        Richard Weinberger <richard@....at>,
        Anton Ivanov <anton.ivanov@...bridgegreys.com>,
        Johannes Berg <johannes@...solutions.net>,
        linux-um@...ts.infradead.org
Subject: Re: [PATCH v2] infiniband: disable IB HW for UML



On 12/4/22 05:21, Leon Romanovsky wrote:
> On Fri, Dec 02, 2022 at 01:19:40PM -0800, Randy Dunlap wrote:
>> Disable all of drivers/infiniband/hw/ for UML builds until someone
>> needs it and provides patches to support it.
>>
>> This prevents build errors in hw/qib/qib_wc_x86_64.c.
>>
>> Fixes: 68f5d3f3b654 ("um: add PCI over virtio emulation driver")
>> Signed-off-by: Randy Dunlap <rdunlap@...radead.org>
>> Suggested-by: Leon Romanovsky <leon@...nel.org>
>> Cc: Jason Gunthorpe <jgg@...dia.com>
>> Cc: Dennis Dalessandro <dennis.dalessandro@...nelisnetworks.com>
>> Cc: Christoph Hellwig <hch@...radead.org>
>> Cc: linux-rdma@...r.kernel.org
>> Cc: Jeff Dike <jdike@...toit.com>
>> Cc: Richard Weinberger <richard@....at>
>> Cc: Anton Ivanov <anton.ivanov@...bridgegreys.com>
>> Cc: Johannes Berg <johannes@...solutions.net>
>> Cc: linux-um@...ts.infradead.org
>> ---
>> v2: just disable infiniband/hw/, not all of infiniband.
>>
>>  drivers/infiniband/Kconfig |    2 ++
>>  1 file changed, 2 insertions(+)
> 
> I added rdmavt to the mix and applied.

Sounds good. Thanks.

> https://lore.kernel.org/linux-rdma/20221130200958.25305-1-rdunlap@infradead.org/
> 
> diff --git a/drivers/infiniband/Kconfig b/drivers/infiniband/Kconfig
> index 6ee97c898231..a5827d11e934 100644
> --- a/drivers/infiniband/Kconfig
> +++ b/drivers/infiniband/Kconfig
> @@ -95,8 +95,8 @@ source "drivers/infiniband/hw/qedr/Kconfig"
>  source "drivers/infiniband/hw/qib/Kconfig"
>  source "drivers/infiniband/hw/usnic/Kconfig"
>  source "drivers/infiniband/hw/vmw_pvrdma/Kconfig"
> -endif # !UML
>  source "drivers/infiniband/sw/rdmavt/Kconfig"
> +endif # !UML
>  source "drivers/infiniband/sw/rxe/Kconfig"
>  source "drivers/infiniband/sw/siw/Kconfig"
>  endif
> (END)

-- 
~Randy