Hi Lorenzo, I love your patch! Yet something to improve: [auto build test ERROR on kvalo-wireless-drivers-next/master] [also build test ERROR on kvalo-wireless-drivers/master v5.16-rc2 next-20211124] [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/Lorenzo-Bianconi/mt76-mt7915-int... base: https://git.kernel.org/pub/scm/linux/kernel/git/kvalo/wireless-drivers-ne... master config: i386-allyesconfig (https://download.01.org/0day-ci/archive/20211125/202111250358.9Q5qPltH-lk...) compiler: gcc-9 (Debian 9.3.0-22) 9.3.0 reproduce (this is a W=1 build): # https://github.com/0day-ci/linux/commit/8f018463c8934b4706320982f195e3779... git remote add linux-review https://github.com/0day-ci/linux git fetch --no-tags linux-review Lorenzo-Bianconi/mt76-mt7915-introduce-SAR-support/20211124-002511 git checkout 8f018463c8934b4706320982f195e3779ef4b25a # save the config file to linux build tree make W=1 ARCH=i386 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 >>): drivers/net/wireless/mediatek/mt76/mt7915/main.c: In function 'mt7915_set_sar_specs': 439 | err = mt76_init_sar_power(hw, sar); | ^~~~~~~~~~~~~~~~~~~ | mt76_get_txpower cc1: some warnings being treated as errors -- drivers/net/wireless/mediatek/mt76/mt7915/mcu.c:2392:5: warning: no previous prototype for 'mt7915_mcu_set_fixed_rate' [-Wmissing-prototypes] 2392 | int mt7915_mcu_set_fixed_rate(struct mt7915_dev *dev, | ^~~~~~~~~~~~~~~~~~~~~~~~~ drivers/net/wireless/mediatek/mt76/mt7915/mcu.c: In function 'mt7915_mcu_set_txpower_sku': 3859 | tx_power = mt76_get_sar_power(mphy, mphy->chandef.chan, | ^~~~~~~~~~~~~~~~~~ | mt76_get_txpower cc1: some warnings being treated as errors vim +439 drivers/net/wireless/mediatek/mt76/mt7915/main.c 427 428 static int mt7915_set_sar_specs(struct ieee80211_hw *hw, 429 const struct cfg80211_sar_specs *sar) 430 { 431 struct mt7915_phy *phy = mt7915_hw_phy(hw); 432 struct mt7915_dev *dev = mt7915_hw_dev(hw); 433 int err = -EINVAL; 434 435 mutex_lock(&dev->mt76.mutex); 436 if (!cfg80211_chandef_valid(&phy->mt76->chandef)) 437 goto out; 438 440 if (err) 441 goto out; 442 443 err = mt7915_mcu_set_txpower_sku(phy); 444 out: 445 mutex_unlock(&dev->mt76.mutex); 446 447 return err; 448 } 449 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org