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Date:   Tue, 13 Jun 2017 10:25:40 -0600
From:   Logan Gunthorpe <logang@...tatee.com>
To:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Cc:     Bjorn Helgaas <helgaas@...nel.org>,
        kernel test robot <fengguang.wu@...el.com>,
        Linus Torvalds <torvalds@...ux-foundation.org>,
        LKP <lkp@...org>, linux-arm-kernel@...ts.infradead.org,
        devicetree@...r.kernel.org, linux-doc@...r.kernel.org,
        linux-pci@...r.kernel.org, linux-kernel@...r.kernel.org,
        Bjorn Helgaas <bhelgaas@...gle.com>, wfg@...ux.intel.com,
        Alan Cox <alan@...ux.intel.com>, Arnd Bergmann <arnd@...db.de>,
        Linus Walleij <linus.walleij@...aro.org>,
        David Airlie <airlied@...ux.ie>,
        David Herrmann <dh.herrmann@...il.com>,
        Daniel Vetter <daniel.vetter@...ll.ch>
Subject: Re: [Merge tag 'pci-v4.12-changes' of git] 857f864014: BUG: unable to
 handle kernel NULL pointer dereference at 00000000000000a8



On 12/06/17 10:35 PM, Greg Kroah-Hartman wrote:
> Or better yet, just turn all char major allocations into dynamic, which
> would be really good for test systems.  I thought someone proposed
> patches for that a long time ago, but I can't find them anymore.  That
> would be the simplest solution here.

Would people not complain about that? I would not be surprised if some
crazy application is using hard coded major numbers in userspace. So
such a change could potentially break userspace...

Logan

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