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From:   Brendan Higgins <brendanhiggins@google.com>
Date:   Tue, 23 Jun 2020 14:27:32 -0700
Message-ID: <CAFd5g44jTP9qtYE1knkRzwTWATKfZREWDrTn=T_WwZEGkNSemw@mail.gmail.com>
Subject: Re: xilinx_axienet_main.c:undefined reference to `devm_ioremap_resource'
To:     kernel test robot <lkp@intel.com>, radheys@xilinx.com,
        michals@xilinx.com
Cc:     kbuild-all@lists.01.org,
        Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
        Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
        David Gow <davidgow@google.com>
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On Sat, Jun 20, 2020 at 1:59 AM kernel test robot <lkp@intel.com> wrote:
>
> Hi Brendan,
>
> It's probably a bug fix that unveils the link errors.
>
> tree:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
> head:   4333a9b0b67bb4e8bcd91bdd80da80b0ec151162
> commit: 1af73a25e6e7d9f2f1e2a14259cc9ffce6d8f6d4 staging: exfat: fix multiple definition error of `rename_file'
> date:   6 months ago
> config: um-allyesconfig (attached as .config)
> compiler: gcc-9 (Debian 9.3.0-13) 9.3.0
> reproduce (this is a W=1 build):
>         git checkout 1af73a25e6e7d9f2f1e2a14259cc9ffce6d8f6d4
>         # save the attached .config to linux build tree
>         make W=1 ARCH=um
>
> If you fix the issue, kindly add following tag as appropriate
> Reported-by: kernel test robot <lkp@intel.com>
>
> All errors (new ones prefixed by >>):
>
>    /usr/bin/ld: drivers/net/ethernet/xilinx/xilinx_axienet_main.o: in function `axienet_probe':
> >> xilinx_axienet_main.c:(.text+0x1aa6): undefined reference to `devm_ioremap_resource'
> >> /usr/bin/ld: xilinx_axienet_main.c:(.text+0x1d06): undefined reference to `devm_ioremap_resource'
>    /usr/bin/ld: xilinx_axienet_main.c:(.text+0x2001): undefined reference to `devm_ioremap_resource'
>    collect2: error: ld returned 1 exit status

I posted a fix for this months ago:

https://patchwork.ozlabs.org/project/linux-um/patch/20191211192742.95699-4-brendanhiggins@google.com/

I thought it got picked up by the maintainer.