Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) client-ip=23.128.96.18;
Subject: Re: ERROR: modpost: "mac_pton" undefined!
To:     kernel test robot <lkp@intel.com>
Cc:     kbuild-all@lists.01.org, linux-kernel@vger.kernel.org,
        "Michael S. Tsirkin" <mst@redhat.com>
References: <202011131937.7Fy1Jnv1-lkp@intel.com>
From:   Laurent Vivier <lvivier@redhat.com>
Message-ID: <71f5ec23-a1a7-8981-b924-412f4bbed9f6@redhat.com>
Date:   Fri, 13 Nov 2020 13:38:40 +0100
User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:78.0) Gecko/20100101
 Thunderbird/78.4.0
MIME-Version: 1.0
In-Reply-To: <202011131937.7Fy1Jnv1-lkp@intel.com>
Content-Type: text/plain; charset=utf-8
Content-Language: en-US
Content-Transfer-Encoding: 7bit
Precedence: bulk

On 13/11/2020 12:58, kernel test robot wrote:
> tree:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
> head:   585e5b17b92dead8a3aca4e3c9876fbca5f7e0ba
> commit: 0c86d774883fa17e7c81b0c8838b88d06c2c911e vdpasim: allow to assign a MAC address
> date:   2 weeks ago
> config: openrisc-randconfig-r035-20201113 (attached as .config)
> compiler: or1k-linux-gcc (GCC) 9.3.0
> reproduce (this is a W=1 build):
>         wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
>         chmod +x ~/bin/make.cross
>         # https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=0c86d774883fa17e7c81b0c8838b88d06c2c911e
>         git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
>         git fetch --no-tags linus master
>         git checkout 0c86d774883fa17e7c81b0c8838b88d06c2c911e
>         # save the attached .config to linux build tree
>         COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross ARCH=openrisc 
> 
> 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 >>, old ones prefixed by <<):
> 
>>> ERROR: modpost: "mac_pton" [drivers/vdpa/vdpa_sim/vdpa_sim.ko] undefined!
>

I think something like this might fix the problem.


diff --git a/drivers/vdpa/Kconfig b/drivers/vdpa/Kconfig
index d7d32b656102..d2de1cefd5cb 100644
--- a/drivers/vdpa/Kconfig
+++ b/drivers/vdpa/Kconfig
@@ -13,6 +13,7 @@ config VDPA_SIM
        depends on RUNTIME_TESTING_MENU && HAS_DMA
        select DMA_OPS
        select VHOST_RING
+       select NET
        default n
        help
          vDPA networking device simulator which loop TX traffic back

I'm going to test with .config and post a patch.

thanks,
Laurent