linux-kernel - Re: [PATCH 4.16 269/272] pinctrl: msm: Use dynamic GPIO numbering

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <510e5f2c-718a-de42-8274-9345d13e7797@codeaurora.org>
Date:   Thu, 31 May 2018 06:55:55 -0500
From:   Timur Tabi <timur@...eaurora.org>
To:     Sebastian Gottschall <s.gottschall@...wrt.com>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Cc:     linux-kernel@...r.kernel.org, stable@...r.kernel.org,
        Bjorn Andersson <bjorn.andersson@...aro.org>,
        Linus Walleij <linus.walleij@...aro.org>,
        Sasha Levin <alexander.levin@...rosoft.com>
Subject: Re: [PATCH 4.16 269/272] pinctrl: msm: Use dynamic GPIO numbering

On 5/31/18 6:53 AM, Sebastian Gottschall wrote:
>>
> i checked initially 4.9 with latest patches and 4.14 and reverted this 
> line to get back to the old behaviour but a which view in the current 
> 4.17 tree shows
> that the same patch has been included in 4.17. it was introduced in the 
> kernel mainline on 12.feb 2018
> https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/drivers/pinctrl/qcom/pinctrl-msm.c?h=v4.17-rc7&id=a7aa75a2a7dba32594291a71c3704000a2fd7089

I believe that this patch should not be applied to *any* stable kernel.

It completely breaks legacy GPIO numbering, and it does so 
intentionally.  That may be okay for future kernels, but IMHO it's wrong 
for older kernels.

-- 
Qualcomm Datacenter Technologies, Inc. as an affiliate of Qualcomm
Technologies, Inc.  Qualcomm Technologies, Inc. is a member of the
Code Aurora Forum, a Linux Foundation Collaborative Project.