linux-kernel - Re: [PATCH v6 11/43] compat_ioctl: move drivers to compat_ptr

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Date:   Tue, 22 Oct 2019 05:34:51 +0100
From:   Al Viro <viro@...iv.linux.org.uk>
To:     Arnd Bergmann <arnd@...db.de>
Cc:     linux-kernel@...r.kernel.org, y2038@...ts.linaro.org,
        linux-fsdevel@...r.kernel.org,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        "Michael S . Tsirkin" <mst@...hat.com>,
        "David S . Miller" <davem@...emloft.net>,
        Jarkko Sakkinen <jarkko.sakkinen@...ux.intel.com>,
        Jason Gunthorpe <jgg@...lanox.com>,
        Jiri Kosina <jkosina@...e.cz>,
        Stefan Hajnoczi <stefanha@...hat.com>,
        Cornelia Huck <cohuck@...hat.com>
Subject: Re: [PATCH v6 11/43] compat_ioctl: move drivers to compat_ptr_ioctl

On Wed, Oct 09, 2019 at 09:10:11PM +0200, Arnd Bergmann wrote:
> Each of these drivers has a copy of the same trivial helper function to
> convert the pointer argument and then call the native ioctl handler.
> 
> We now have a generic implementation of that, so use it.

I'd rather flipped your #7 (ceph_compat_ioctl() introduction) past
that one...