linux-kernel - Re: [PATCH] scsi: isci: initialize shost fully before calling scsi_add

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Message-ID: <8d96b40d-fc83-9218-9479-3de423594ddb@huawei.com>
Date:   Thu, 10 Jan 2019 09:11:44 +0000
From:   John Garry <john.garry@...wei.com>
To:     Christoph Hellwig <hch@....de>,
        Logan Gunthorpe <logang@...tatee.com>
CC:     <linux-scsi@...r.kernel.org>, <linux-block@...r.kernel.org>,
        <linux-kernel@...r.kernel.org>,
        Intel SCU Linux support <intel-linux-scu@...el.com>,
        Artur Paszkiewicz <artur.paszkiewicz@...el.com>,
        "James E.J. Bottomley" <jejb@...ux.ibm.com>,
        "Martin K. Petersen" <martin.petersen@...cle.com>,
        Jens Axboe <axboe@...nel.dk>, Jeff Moyer <jmoyer@...hat.com>,
        chenxiang <chenxiang66@...ilicon.com>
Subject: Re: [PATCH] scsi: isci: initialize shost fully before calling
 scsi_add_host()

On 09/01/2019 18:41, Christoph Hellwig wrote:
> This looks good.  I wonder if there is any good way to prevent other
> drivers from picking up this bug byt using a better interface, but
> that should not delay your fix.
>
> .
>

I noticed that hisi_sas has this same problem but I forgot to fix it.

So how about just drop these APIs and let the user set the shost 
protection parameters directly, like other shost parameters, which 
should make it a bit clearer when these should be set, i.e. before 
scsi_add_host()?

John