Hi Miquel, I love your patch! Yet something to improve: [auto build test ERROR on linus/master] [also build test ERROR on v5.16 next-20220112] [If your patch is applied to the wrong git tree, kindly drop us a note. And when submitting patch, we suggest to use '--base' as documented in https://git-scm.com/docs/git-format-patch] url: https://github.com/0day-ci/linux/commits/Miquel-Raynal/IEEE-802-15-4-scan... base: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git daadb3bd0e8d3e317e36bc2c1542e86c528665e5 config: alpha-randconfig-r006-20220112 (https://download.01.org/0day-ci/archive/20220113/202201130312.AD3Sqi9A-lk...) compiler: alpha-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/9c8fbd918a704432bbf6cdce1d111e900... git remote add linux-review https://github.com/0day-ci/linux git fetch --no-tags linux-review Miquel-Raynal/IEEE-802-15-4-scan-support/20220113-013731 git checkout 9c8fbd918a704432bbf6cdce1d111e9002c756b4 # 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=alpha SHELL=/bin/bash net/ieee802154/ If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp(a)intel.com&gt; All errors (new ones prefixed by >>): net/ieee802154/nl802154.c: In function 'nl802154_dump_pans': 1613 | err = nl802154_prepare_wpan_dev_dump(skb, cb, &rdev, &wpan_dev); | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 1637 | nl802154_finish_wpan_dev_dump(rdev); | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~ cc1: some warnings being treated as errors vim +/nl802154_prepare_wpan_dev_dump +1613 net/ieee802154/nl802154.c 1605 1606 static int nl802154_dump_pans(struct sk_buff *skb, struct netlink_callback *cb) 1607 { 1608 struct cfg802154_registered_device *rdev; 1609 struct cfg802154_internal_pan *pan; 1610 struct wpan_dev *wpan_dev; 1611 int err; 1612 1614 if (err) 1615 return err; 1616 1617 spin_lock_bh(&rdev->pan_lock); 1618 1619 if (cb->args[2]) 1620 goto out; 1621 1622 cb->seq = rdev->pan_generation; 1623 1624 ieee802154_for_each_pan(pan, rdev) { 1625 err = nl802154_send_pan_info(skb, cb, cb->nlh->nlmsg_seq, 1626 NLM_F_MULTI, rdev, wpan_dev, pan); 1627 if (err < 0) 1628 goto out_err; 1629 } 1630 1631 cb->args[2] = 1; 1632 out: 1633 err = skb->len; 1634 out_err: 1635 spin_unlock_bh(&rdev->pan_lock); 1636 1638 1639 return err; 1640 } 1641 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org