linux-kernel - Re: [PATCH v3 13/22] compat_ioctl: scsi: move ioctl handling into drivers

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Message-ID: <CAK8P3a0oPpMC8367sEs+9Ae=wFH30BHAq+aRDbWLyeVLuNOnEw@mail.gmail.com>
Date:   Wed, 12 Feb 2020 22:49:49 +0100
From:   Arnd Bergmann <arnd@...db.de>
To:     Johannes Hirte <johannes.hirte@...enkhaos.de>
Cc:     "James E.J. Bottomley" <jejb@...ux.ibm.com>,
        "Martin K. Petersen" <martin.petersen@...cle.com>,
        "Michael S. Tsirkin" <mst@...hat.com>,
        Jason Wang <jasowang@...hat.com>,
        Paolo Bonzini <pbonzini@...hat.com>,
        Stefan Hajnoczi <stefanha@...hat.com>,
        Jens Axboe <axboe@...nel.dk>,
        Doug Gilbert <dgilbert@...erlog.com>,
        Kai Mäkisara <Kai.Makisara@...umbus.fi>,
        Alexander Viro <viro@...iv.linux.org.uk>,
        Dongli Zhang <dongli.zhang@...cle.com>,
        Thomas Gleixner <tglx@...utronix.de>,
        Bart Van Assche <bvanassche@....org>,
        Hannes Reinecke <hare@...e.com>,
        Damien Le Moal <damien.lemoal@....com>,
        John Garry <john.garry@...wei.com>,
        Martin Wilck <mwilck@...e.com>,
        Heiko Carstens <heiko.carstens@...ibm.com>,
        "Gustavo A. R. Silva" <gustavo@...eddedor.com>,
        Ira Weiny <ira.weiny@...el.com>, Iustin Pop <iustin@...24.org>,
        "Darrick J. Wong" <darrick.wong@...cle.com>,
        virtualization@...ts.linux-foundation.org,
        linux-block <linux-block@...r.kernel.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        linux-scsi <linux-scsi@...r.kernel.org>,
        Linux FS-devel Mailing List <linux-fsdevel@...r.kernel.org>
Subject: Re: [PATCH v3 13/22] compat_ioctl: scsi: move ioctl handling into drivers

On Wed, Feb 12, 2020 at 10:15 PM Johannes Hirte
<johannes.hirte@...enkhaos.de> wrote:
>
> On 2020 Jan 02, Arnd Bergmann wrote:

>
> Error in getting drive hardware properties
> Error in getting drive reading properties
> Error in getting drive writing properties
> __________________________________
>
> Disc mode is listed as: CD-DA
> ++ WARN: error in ioctl CDROMREADTOCHDR: Bad address
>
> cd-info: Can't get first track number. I give up.

Right, there was also a report about breaking the Fedora installer,
see https://bugzilla.redhat.com/show_bug.cgi?id=1801353

There is a preliminary patch that should fix this, I'll post a
version with more references tomorrow:
https://www.happyassassin.net/temp/0001-Replace-.ioctl-with-.compat_ioctl-in-three-appropria.patch

      Arnd