Re: [RFC PATCH v2 net-next 16/16] net: bridge: switchdev: let drivers inform which bridge ports are offloaded

[kernel test robot <lkp@intel.com>]

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Hi Vladimir,

[FYI, it's a private test report for your RFC patch.]
[auto build test ERROR on net-next/master]

url:    https://github.com/0day-ci/linux/commits/Vladimir-Oltean/Better-support-for-sandwiched-LAGs-with-bridge-and-DSA/20210319-072218
base:   https://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next.git 31222162557ca85808b9985de7e519041561f455
config: arm-randconfig-r025-20210318 (attached as .config)
compiler: clang version 13.0.0 (https://github.com/llvm/llvm-project fcc1ce00931751ac02498986feb37744e9ace8de)
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
        # install arm cross compiling tool for clang build
        # apt-get install binutils-arm-linux-gnueabi
        # https://github.com/0day-ci/linux/commit/a25b1e23ecf26f2dc45247ebcf4ff5bde213ac42
        git remote add linux-review https://github.com/0day-ci/linux
        git fetch --no-tags linux-review Vladimir-Oltean/Better-support-for-sandwiched-LAGs-with-bridge-and-DSA/20210319-072218
        git checkout a25b1e23ecf26f2dc45247ebcf4ff5bde213ac42
        # save the attached .config to linux build tree
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross ARCH=arm 

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@intel.com>

All error/warnings (new ones prefixed by >>):

   In file included from net/bridge/br_device.c:19:
   In file included from net/bridge/br_private.h:13:
>> include/linux/if_bridge.h:204:5: warning: no previous prototype for function 'switchdev_bridge_port_offload' [-Wmissing-prototypes]
   int switchdev_bridge_port_offload(struct net_device *dev,
       ^
   include/linux/if_bridge.h:204:1: note: declare 'static' if the function is not intended to be used outside of this translation unit
   int switchdev_bridge_port_offload(struct net_device *dev,
   ^
   static 
>> include/linux/if_bridge.h:210:5: warning: no previous prototype for function 'switchdev_bridge_port_unoffload' [-Wmissing-prototypes]
   int switchdev_bridge_port_unoffload(struct net_device *dev)
       ^
   include/linux/if_bridge.h:210:1: note: declare 'static' if the function is not intended to be used outside of this translation unit
   int switchdev_bridge_port_unoffload(struct net_device *dev)
   ^
   static 
>> include/linux/if_bridge.h:212:1: error: non-void function does not return a value [-Werror,-Wreturn-type]
   }
   ^
   2 warnings and 1 error generated.
--
   In file included from net/bridge/br_netlink_tunnel.c:18:
   In file included from net/bridge/br_private.h:13:
>> include/linux/if_bridge.h:204:5: warning: no previous prototype for function 'switchdev_bridge_port_offload' [-Wmissing-prototypes]
   int switchdev_bridge_port_offload(struct net_device *dev,
       ^
   include/linux/if_bridge.h:204:1: note: declare 'static' if the function is not intended to be used outside of this translation unit
   int switchdev_bridge_port_offload(struct net_device *dev,
   ^
   static 
>> include/linux/if_bridge.h:210:5: warning: no previous prototype for function 'switchdev_bridge_port_unoffload' [-Wmissing-prototypes]
   int switchdev_bridge_port_unoffload(struct net_device *dev)
       ^
   include/linux/if_bridge.h:210:1: note: declare 'static' if the function is not intended to be used outside of this translation unit
   int switchdev_bridge_port_unoffload(struct net_device *dev)
   ^
   static 
>> include/linux/if_bridge.h:212:1: error: non-void function does not return a value [-Werror,-Wreturn-type]
   }
   ^
   net/bridge/br_netlink_tunnel.c:29:6: warning: no previous prototype for function 'vlan_tunid_inrange' [-Wmissing-prototypes]
   bool vlan_tunid_inrange(const struct net_bridge_vlan *v_curr,
        ^
   net/bridge/br_netlink_tunnel.c:29:1: note: declare 'static' if the function is not intended to be used outside of this translation unit
   bool vlan_tunid_inrange(const struct net_bridge_vlan *v_curr,
   ^
   static 
   net/bridge/br_netlink_tunnel.c:196:5: warning: no previous prototype for function 'br_vlan_tunnel_info' [-Wmissing-prototypes]
   int br_vlan_tunnel_info(const struct net_bridge_port *p, int cmd,
       ^
   net/bridge/br_netlink_tunnel.c:196:1: note: declare 'static' if the function is not intended to be used outside of this translation unit
   int br_vlan_tunnel_info(const struct net_bridge_port *p, int cmd,
   ^
   static 
   4 warnings and 1 error generated.


vim +212 include/linux/if_bridge.h

   198	
   199	#if IS_ENABLED(CONFIG_BRIDGE) && IS_ENABLED(CONFIG_NET_SWITCHDEV)
   200	int switchdev_bridge_port_offload(struct net_device *dev,
   201					  struct netlink_ext_ack *extack);
   202	int switchdev_bridge_port_unoffload(struct net_device *dev);
   203	#else
 > 204	int switchdev_bridge_port_offload(struct net_device *dev,
   205					  struct netlink_ext_ack *extack)
   206	{
   207		return 0;
   208	}
   209	
 > 210	int switchdev_bridge_port_unoffload(struct net_device *dev)
   211	{
 > 212	}
   213	#endif
   214	

---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all(a)lists.01.org

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