linux-kernel - arm scsi drivers

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Date:   Fri, 20 Aug 2021 18:37:13 +0100
From:   John Garry <john.garry@...wei.com>
To:     <linux@...linux.org.uk>
CC:     "Martin K . Petersen" <martin.petersen@...cle.com>,
        "James E.J. Bottomley" <jejb@...ux.ibm.com>,
        "linux-scsi@...r.kernel.org" <linux-scsi@...r.kernel.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        Hannes Reinecke <hare@...e.com>,
        "Christoph Hellwig" <hch@....de>,
        Bart Van Assche <bvanassche@....org>,
        Arnd Bergmann <arnd@...db.de>
Subject: arm scsi drivers

Hi Russell,

Recently we tried to remove scsi_cmnd.tags struct member [0].

However it now shows that some of the arm SCSI drivers continue to use 
this [1]. I think any other driver usage of this member had been found 
and removed.

The impression is that the usage of scsi_cmnd.tag in those drivers is 
quite dubious.

Now checking [2], it appears that you may have had some patches for 
these drivers locally.

So is that the case? Is this HW still used with bleeding edge kernels? 
If so, can we fix up this tag management?

[0] 
https://lore.kernel.org/linux-scsi/6c83bd7f-9fd2-1b43-627f-615467fa55d4@huawei.com/T/#mb47909f38f35837686734369600051b278d124af

[1] 
https://lore.kernel.org/linux-scsi/6c83bd7f-9fd2-1b43-627f-615467fa55d4@huawei.com/T/#md5d786e5753083b2f3e8e761b1c69809f82c7485

[2] 
https://lore.kernel.org/lkml/20210109174357.GB1551@shell.armlinux.org.uk/

Thanks,
John