Hi Tobias,

I love your patch! Yet something to improve:

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

url:    https://github.com/0day-ci/linux/commits/Tobias-Waldekranz/net-bridge-Multiple-Spanning-Trees/20220314-175717
base:   https://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next.git de29aff976d3216e7f3ab41fcd7af46fa8f7eab7
config: xtensa-randconfig-m031-20220313 (https://download.01.org/0day-ci/archive/20220314/202203142009.7OAfQ0fR-lkp@intel.com/config)
compiler: xtensa-linux-gcc (GCC) 11.2.0
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/0day-ci/linux/commit/702c502efb27c12860bc55fc8d9b1bfd99466623
        git remote add linux-review https://github.com/0day-ci/linux
        git fetch --no-tags linux-review Tobias-Waldekranz/net-bridge-Multiple-Spanning-Trees/20220314-175717
        git checkout 702c502efb27c12860bc55fc8d9b1bfd99466623
        # save the config file to linux build tree
        mkdir build_dir
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-11.2.0 make.cross O=build_dir ARCH=xtensa SHELL=/bin/bash net/bridge/

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <redacted>

All errors (new ones prefixed by >>):

   net/bridge/br.c: In function 'br_boolopt_toggle':

quoted

net/bridge/br.c:269:23: error: implicit declaration of function 'br_mst_set_enabled'; did you mean 'br_stp_set_enabled'? [-Werror=implicit-function-declaration]

     269 |                 err = br_mst_set_enabled(br, on, extack);
         |                       ^~~~~~~~~~~~~~~~~~
         |                       br_stp_set_enabled
   cc1: some warnings being treated as errors


vim +269 net/bridge/br.c

   245	
   246	/* br_boolopt_toggle - change user-controlled boolean option
   247	 *
   248	 * @br: bridge device
   249	 * @opt: id of the option to change
   250	 * @on: new option value
   251	 * @extack: extack for error messages
   252	 *
   253	 * Changes the value of the respective boolean option to @on taking care of
   254	 * any internal option value mapping and configuration.
   255	 */
   256	int br_boolopt_toggle(struct net_bridge *br, enum br_boolopt_id opt, bool on,
   257			      struct netlink_ext_ack *extack)
   258	{
   259		int err = 0;
   260	
   261		switch (opt) {
   262		case BR_BOOLOPT_NO_LL_LEARN:
   263			br_opt_toggle(br, BROPT_NO_LL_LEARN, on);
   264			break;
   265		case BR_BOOLOPT_MCAST_VLAN_SNOOPING:
   266			err = br_multicast_toggle_vlan_snooping(br, on, extack);
   267			break;
   268		case BR_BOOLOPT_MST_ENABLE:
 > 269			err = br_mst_set_enabled(br, on, extack);
   270			break;
   271		default:
   272			/* shouldn't be called with unsupported options */
   273			WARN_ON(1);
   274			break;
   275		}
   276	
   277		return err;
   278	}
   279	

---
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