linux-kernel - Re: [PATCH 0/3] Remove scsi

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Message-ID: <c9d9891b-780b-4641-2b60-6319d525e17c@huawei.com>
Date:   Thu, 19 Aug 2021 08:27:19 +0100
From:   John Garry <john.garry@...wei.com>
To:     Hannes Reinecke <hare@...e.de>,
        Bart Van Assche <bvanassche@....org>,
        "Martin K. Petersen" <martin.petersen@...cle.com>
CC:     <satishkh@...co.com>, <sebaddel@...co.com>, <kartilak@...co.com>,
        <jejb@...ux.ibm.com>, <linux-scsi@...r.kernel.org>,
        <linux-kernel@...r.kernel.org>, <hch@....de>
Subject: Re: [PATCH 0/3] Remove scsi_cmnd.tag

On 19/08/2021 08:15, Hannes Reinecke wrote:
> Hey Bart,
> 
> Thanks for this!
> Really helpful.
> 
> Just a tiny wee snag:
> 
> On 8/19/21 4:41 AM, Bart Van Assche wrote:
>> On 8/18/21 11:08 AM, John Garry wrote:
>>> Or maybe you or Bart have a better idea?
>>
>> This is how I test compilation of SCSI drivers on a SUSE system (only
>> the cross-compilation prefix is distro specific):
>>
>>      # Acorn RiscPC
>>      make ARCH=arm xconfig
>>      # Select the RiscPC architecture (ARCH_RPC)
>>      make -j9 ARCH=arm CROSS_COMPILE=arm-suse-linux-gnueabi- </dev/null
>>
> 
> Acorn RiscPC is ARMv3, which sadly isn't supported anymore with gcc9.
> So for compilation I had to modify Kconfig to select ARMv4:
> 

Yeah, that is what I was tackling this very moment.

> diff --git a/arch/arm/mm/Kconfig b/arch/arm/mm/Kconfig
> index 8355c3895894..22ec9e275335 100644
> --- a/arch/arm/mm/Kconfig
> +++ b/arch/arm/mm/Kconfig
> @@ -278,7 +278,7 @@ config CPU_ARM1026
>   # SA110
>   config CPU_SA110
>          bool
> -       select CPU_32v3 if ARCH_RPC
> +       select CPU_32v4 if ARCH_RPC

Does that build fully for xconfig or any others which you tried?

>          select CPU_32v4 if !ARCH_RPC
>          select CPU_ABRT_EV4
>          select CPU_CACHE_V4WB
> 

Thanks to all!