linux-kernel - Re: [PATCH 5.4 00/21] 5.4.117-rc1 review

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]
Date:   Wed, 5 May 2021 19:35:15 -0700
From:   Guenter Roeck <linux@...ck-us.net>
To:     Daniel Díaz <daniel.diaz@...aro.org>
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        open list <linux-kernel@...r.kernel.org>,
        Linus Torvalds <torvalds@...ux-foundation.org>,
        Andrew Morton <akpm@...ux-foundation.org>,
        Shuah Khan <shuah@...nel.org>, patches@...nelci.org,
        lkft-triage@...ts.linaro.org, Pavel Machek <pavel@...x.de>,
        jonathanh@...dia.com, f.fainelli@...il.com,
        linux- stable <stable@...r.kernel.org>
Subject: Re: [PATCH 5.4 00/21] 5.4.117-rc1 review

On 5/5/21 7:15 PM, Daniel Díaz wrote:
> Hello!
> 
> On Wed, 5 May 2021 at 16:49, Guenter Roeck <linux@...ck-us.net> wrote:
>>
>> On Wed, May 05, 2021 at 02:04:14PM +0200, Greg Kroah-Hartman wrote:
>>> This is the start of the stable review cycle for the 5.4.117 release.
>>> There are 21 patches in this series, all will be posted as a response
>>> to this one.  If anyone has any issues with these being applied, please
>>> let me know.
>>>
>>> Responses should be made by Fri, 07 May 2021 11:23:16 +0000.
>>> Anything received after that time might be too late.
>>>
>>> The whole patch series can be found in one patch at:
>>>       https://www.kernel.org/pub/linux/kernel/v5.x/stable-review/patch-5.4.117-rc1.gz
>>> or in the git tree and branch at:
>>>       git://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable-rc.git linux-5.4.y
>>> and the diffstat can be found below.
>>>
>>> thanks,
>>>
>>> greg k-h
>>>
>>> -------------
>>> Pseudo-Shortlog of commits:
>>>
>>> Greg Kroah-Hartman <gregkh@...uxfoundation.org>
>>>     Linux 5.4.117-rc1
>>>
>>> Ondrej Mosnacek <omosnace@...hat.com>
>>>     perf/core: Fix unconditional security_locked_down() call
>>>
>>> Miklos Szeredi <mszeredi@...hat.com>
>>>     ovl: allow upperdir inside lowerdir
>>>
>>> Dan Carpenter <dan.carpenter@...cle.com>
>>>     scsi: ufs: Unlock on a couple error paths
>>>
>>> Mark Pearson <markpearson@...ovo.com>
>>>     platform/x86: thinkpad_acpi: Correct thermal sensor allocation
>>>
>>> Shengjiu Wang <shengjiu.wang@....com>
>>>     ASoC: ak5558: Add MODULE_DEVICE_TABLE
>>>
>>> Shengjiu Wang <shengjiu.wang@....com>
>>>     ASoC: ak4458: Add MODULE_DEVICE_TABLE
>>
>> Twice ? Why ?
> 
> But different, right? One for 4458 and the other for 5558:
> 
> sound/soc/codecs/ak4458.c:
> +MODULE_DEVICE_TABLE(of, ak4458_of_match);
> 
> sound/soc/codecs/ak5558.c:
> +MODULE_DEVICE_TABLE(of, ak5558_i2c_dt_ids);
> 

Yes, I realized that later. The real problem is that the commits
are already in the tree, so both files end up with two sets of
MODULE_DEVICE_TABLE().

$ git grep MODULE_DEVICE_TABLE sound/soc/codecs/ak4458.c
sound/soc/codecs/ak4458.c:MODULE_DEVICE_TABLE(of, ak4458_of_match);
sound/soc/codecs/ak4458.c:MODULE_DEVICE_TABLE(of, ak4458_of_match);
$ git grep MODULE_DEVICE_TABLE sound/soc/codecs/ak5558.c
sound/soc/codecs/ak5558.c:MODULE_DEVICE_TABLE(of, ak5558_i2c_dt_ids);
sound/soc/codecs/ak5558.c:MODULE_DEVICE_TABLE(of, ak5558_i2c_dt_ids);

That applies to all branches.

> FWIW, our builds passed with that pair of commits.

My test builds pass as well. I think this is because Chrome OS
images build with -Werror.

Guenter

> 
> Greetings!
> 
> Daniel Díaz
> daniel.diaz@...aro.org
> 
> 
> 
>> This gives me a compile error (the second time it is added at the wrong
>> place).
>>
>> chromeos-kernel-5_4-5.4.117_rc1-r2159: /build/arm-generic/tmp/portage/sys-kernel/chromeos-kernel-5_4-5.4.117_rc1-r2159/work/chromeos-kernel-5_4-5.4.117_rc1/sound/soc/codecs/ak4458.c:722:1: error: redefinition of '__mod_of__ak4458_of_match_device_table'
>> chromeos-kernel-5_4-5.4.117_rc1-r2159: MODULE_DEVICE_TABLE(of, ak4458_of_match);
>> chromeos-kernel-5_4-5.4.117_rc1-r2159: ^
>> chromeos-kernel-5_4-5.4.117_rc1-r2159: /build/arm-generic/tmp/portage/sys-kernel/chromeos-kernel-5_4-5.4.117_rc1-r2159/work/chromeos-kernel-5_4-5.4.117_rc1/include/linux/module.h:227:21: note: expanded from macro 'MODULE_DEVICE_TABLE'
>> chromeos-kernel-5_4-5.4.117_rc1-r2159: extern typeof(name) __mod_##type##__##name##_device_table               \
>> chromeos-kernel-5_4-5.4.117_rc1-r2159:                     ^
>> chromeos-kernel-5_4-5.4.117_rc1-r2159: <scratch space>:119:1: note: expanded from here
>> chromeos-kernel-5_4-5.4.117_rc1-r2159: __mod_of__ak4458_of_match_device_table
>> chromeos-kernel-5_4-5.4.117_rc1-r2159: ^
>> chromeos-kernel-5_4-5.4.117_rc1-r2159: /build/arm-generic/tmp/portage/sys-kernel/chromeos-kernel-5_4-5.4.117_rc1-r2159/work/chromeos-kernel-5_4-5.4.117_rc1/sound/soc/codecs/ak4458.c:711:1: note: previous definition is here
>> chromeos-kernel-5_4-5.4.117_rc1- r2159: MODULE_DEVICE_TABLE(of, ak4458_of_match);
>> chromeos-kernel-5_4-5.4.117_rc1-r2159: ^
>> chromeos-kernel-5_4-5.4.117_rc1-r2159: /build/arm-generic/tmp/portage/sys-kernel/chromeos-kernel-5_4-5.4.117_rc1-r2159/work/chromeos-kernel-5_4-5.4.117_rc1/include/linux/module.h:227:21: note: expanded from macro 'MODULE_DEVICE_TABLE'
>> chromeos-kernel-5_4-5.4.117_rc1-r2159: extern typeof(name) __mod_##type##__##name##_device_table               \
>>
>> Oddly enough, I only see the error when I try to merge the
>> code into ChromeOS, not in my test builds. I guess that has
>> to do with "-Werror".
>>
>> Guenter