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Message-ID: <202301251150.xzkLwNpI-lkp@intel.com>
Date:   Wed, 25 Jan 2023 12:00:19 +0800
From:   kernel test robot <lkp@...el.com>
To:     Lorenzo Bianconi <lorenzo@...nel.org>, bpf@...r.kernel.org
Cc:     oe-kbuild-all@...ts.linux.dev, netdev@...r.kernel.org,
        ast@...nel.org, daniel@...earbox.net, andrii@...nel.org,
        davem@...emloft.net, kuba@...nel.org, hawk@...nel.org,
        pabeni@...hat.com, edumazet@...gle.com, toke@...hat.com,
        memxor@...il.com, alardam@...il.com, saeedm@...dia.com,
        anthony.l.nguyen@...el.com, gospo@...adcom.com,
        vladimir.oltean@....com, nbd@....name, john@...ozen.org,
        leon@...nel.org, simon.horman@...igine.com, aelior@...vell.com,
        christophe.jaillet@...adoo.fr, ecree.xilinx@...il.com,
        mst@...hat.com, bjorn@...nel.org, magnus.karlsson@...el.com,
        maciej.fijalkowski@...el.com, intel-wired-lan@...ts.osuosl.org,
        lorenzo.bianconi@...hat.com
Subject: Re: [PATCH v2 bpf-next 2/8] drivers: net: turn on XDP features

Hi Lorenzo,

Thank you for the patch! Yet something to improve:

[auto build test ERROR on bpf-next/master]

url:    https://github.com/intel-lab-lkp/linux/commits/Lorenzo-Bianconi/netdev-genl-create-a-simple-family-for-netdev-stuff/20230125-083645
base:   https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next.git master
patch link:    https://lore.kernel.org/r/c1171111f8af76da11331277b1e4a930c10f3c30.1674606197.git.lorenzo%40kernel.org
patch subject: [PATCH v2 bpf-next 2/8] drivers: net: turn on XDP features
config: arc-defconfig (https://download.01.org/0day-ci/archive/20230125/202301251150.xzkLwNpI-lkp@intel.com/config)
compiler: arc-elf-gcc (GCC) 12.1.0
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://github.com/intel-lab-lkp/linux/commit/7dab4c7d96218eccccedd50e72c84e0ef4de0f4a
        git remote add linux-review https://github.com/intel-lab-lkp/linux
        git fetch --no-tags linux-review Lorenzo-Bianconi/netdev-genl-create-a-simple-family-for-netdev-stuff/20230125-083645
        git checkout 7dab4c7d96218eccccedd50e72c84e0ef4de0f4a
        # save the config file
        mkdir build_dir && cp config build_dir/.config
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-12.1.0 make.cross W=1 O=build_dir ARCH=arc olddefconfig
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-12.1.0 make.cross W=1 O=build_dir ARCH=arc SHELL=/bin/bash

If you fix the issue, kindly add following tag where applicable
| Reported-by: kernel test robot <lkp@...el.com>

All errors (new ones prefixed by >>):

>> net/core/xdp.c:777:6: error: redefinition of 'xdp_features_set_redirect_target'
     777 | void xdp_features_set_redirect_target(struct net_device *dev, bool support_sg)
         |      ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
   In file included from include/linux/netdevice.h:43,
                    from include/linux/if_vlan.h:10,
                    from include/linux/filter.h:20,
                    from net/core/xdp.c:8:
   include/net/xdp.h:418:1: note: previous definition of 'xdp_features_set_redirect_target' with type 'void(struct net_device *, bool)' {aka 'void(struct net_device *, _Bool)'}
     418 | xdp_features_set_redirect_target(struct net_device *dev, bool support_sg)
         | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
>> net/core/xdp.c:787:6: error: redefinition of 'xdp_features_clear_redirect_target'
     787 | void xdp_features_clear_redirect_target(struct net_device *dev)
         |      ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
   include/net/xdp.h:423:1: note: previous definition of 'xdp_features_clear_redirect_target' with type 'void(struct net_device *)'
     423 | xdp_features_clear_redirect_target(struct net_device *dev)
         | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~


vim +/xdp_features_set_redirect_target +777 net/core/xdp.c

   776	
 > 777	void xdp_features_set_redirect_target(struct net_device *dev, bool support_sg)
   778	{
   779		dev->xdp_features |= NETDEV_XDP_ACT_NDO_XMIT;
   780		if (support_sg)
   781			dev->xdp_features |= NETDEV_XDP_ACT_NDO_XMIT_SG;
   782	
   783		call_netdevice_notifiers(NETDEV_XDP_FEAT_CHANGE, dev);
   784	}
   785	EXPORT_SYMBOL_GPL(xdp_features_set_redirect_target);
   786	
 > 787	void xdp_features_clear_redirect_target(struct net_device *dev)

-- 
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests

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