linux-kernel - Re: [linux-stable-rc:linux-4.9.y 6083/6211] warning: __mcount_loc already exists: drivers/net/wireless/intel/iwlwifi/mvm/rx.o

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Message-ID: <20180304131602.qogvqh7542ngkgrg@wfg-t540p.sh.intel.com>
Date:   Sun, 4 Mar 2018 21:16:02 +0800
From:   Fengguang Wu <fengguang.wu@...el.com>
To:     Arnd Bergmann <arnd@...db.de>
Cc:     kbuild-all@...org, Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        "Martin K. Petersen" <martin.petersen@...cle.com>,
        Olof Johansson <olof@...om.net>,
        "# 3.4.x" <stable@...r.kernel.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        "Hao, Shun" <shun.hao@...el.com>
Subject: Re: [linux-stable-rc:linux-4.9.y 6083/6211] warning: __mcount_loc
 already exists: drivers/net/wireless/intel/iwlwifi/mvm/rx.o

On Sun, Mar 04, 2018 at 09:29:17AM +0100, Arnd Bergmann wrote:
>On Sun, Mar 4, 2018 at 7:21 AM, kbuild test robot
><fengguang.wu@...el.com> wrote:
>> tree:   https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable-rc.git linux-4.9.y
>> head:   85afb4e51ccfdb10f2969b24439ae2887fe0fcff
>> commit: c0ecbd663fe6961c6ff181a211f090005858656f [6083/6211] scsi: advansys: fix uninitialized data access
>> config: i386-allmodconfig (attached as .config)
>> compiler: gcc-7 (Debian 7.3.0-1) 7.3.0
>> reproduce:
>>         git checkout c0ecbd663fe6961c6ff181a211f090005858656f
>>         # save the attached .config to linux build tree
>>         make ARCH=i386
>>
>> All warnings (new ones prefixed by >>):
>>
>>>> warning: __mcount_loc already exists: drivers/net/wireless/intel/iwlwifi/mvm/rx.o
>
>I'm pretty sure this is unrelated to my patch, but it's a recurring

CC Shun for checking if there are problems with the bisect.

>problem that we should get
>to the bottom of. Olof's autobuilder has reported the same thing for
>the 3.18-stable tree
>but not any others (for every single file in the kernel, not sure if
>this warning only
>shows up for all of them, or just one module).

Thanks,
Fengguang