[kbuild-all] [nbd168-wireless:mt76 110/138] drivers/net/wireless/mediatek/mt76/mt7915/main.c:694:1: sparse: sparse: context imbalance in 'mt7915_sta_rc_update' - wrong count at exit

tree: https://github.com/nbd168/wireless mt76 head: 12a87174accd29ff943d4c5fb735e1541b92630b commit: e57b7901469fc0b021930b83a8094baaf3d81b09 [110/138] mt76: add mac80211 driver for MT7915 PCIe-based chipsets reproduce: # apt-get install sparse # sparse version: v0.6.1-193-gb8fad4bc-dirty git checkout e57b7901469fc0b021930b83a8094baaf3d81b09 make ARCH=x86_64 allmodconfig make C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' :::::: branch date: 2 days ago :::::: commit date: 4 days ago If you fix the issue, kindly add following tag as appropriate Reported-by: kbuild test robot <lkp(a)intel.com&gt; sparse warnings: (new ones prefixed by >>) -- drivers/net/wireless/mediatek/mt76/mt7915/mcu.c:1671:16: sparse: sparse: restricted __le32 degrades to integer -- drivers/net/wireless/mediatek/mt76/mt7915/mac.c:303:43: sparse: sparse: restricted __le32 degrades to integer drivers/net/wireless/mediatek/mt76/mt7915/mac.c:303:43: sparse: sparse: restricted __le32 degrades to integer drivers/net/wireless/mediatek/mt76/mt7915/mac.c:304:43: sparse: sparse: cast to restricted __le32 drivers/net/wireless/mediatek/mt76/mt7915/mac.c:304:43: sparse: sparse: restricted __le32 degrades to integer drivers/net/wireless/mediatek/mt76/mt7915/mac.c:304:43: sparse: sparse: restricted __le32 degrades to integer drivers/net/wireless/mediatek/mt76/mt7915/mac.c:305:43: sparse: sparse: cast to restricted __le32 drivers/net/wireless/mediatek/mt76/mt7915/mac.c:305:43: sparse: sparse: restricted __le32 degrades to integer drivers/net/wireless/mediatek/mt76/mt7915/mac.c:305:43: sparse: sparse: restricted __le32 degrades to integer drivers/net/wireless/mediatek/mt76/mt7915/mac.c:306:43: sparse: sparse: cast to restricted __le32 drivers/net/wireless/mediatek/mt76/mt7915/mac.c:306:43: sparse: sparse: restricted __le32 degrades to integer drivers/net/wireless/mediatek/mt76/mt7915/mac.c:306:43: sparse: sparse: restricted __le32 degrades to integer drivers/net/wireless/mediatek/mt76/mt7915/mac.c:319:35: sparse: sparse: cast to restricted __le32 drivers/net/wireless/mediatek/mt76/mt7915/mac.c:319:35: sparse: sparse: restricted __le32 degrades to integer drivers/net/wireless/mediatek/mt76/mt7915/mac.c:319:35: sparse: sparse: restricted __le32 degrades to integer drivers/net/wireless/mediatek/mt76/mt7915/mac.c:320:33: sparse: sparse: cast to restricted __le32 drivers/net/wireless/mediatek/mt76/mt7915/mac.c:320:33: sparse: sparse: restricted __le32 degrades to integer drivers/net/wireless/mediatek/mt76/mt7915/mac.c:320:33: sparse: sparse: restricted __le32 degrades to integer drivers/net/wireless/mediatek/mt76/mt7915/mac.c:327:35: sparse: sparse: cast to restricted __le32 drivers/net/wireless/mediatek/mt76/mt7915/mac.c:327:35: sparse: sparse: restricted __le32 degrades to integer drivers/net/wireless/mediatek/mt76/mt7915/mac.c:327:35: sparse: sparse: restricted __le32 degrades to integer drivers/net/wireless/mediatek/mt76/mt7915/mac.c:328:35: sparse: sparse: cast to restricted __le32 drivers/net/wireless/mediatek/mt76/mt7915/mac.c:328:35: sparse: sparse: restricted __le32 degrades to integer drivers/net/wireless/mediatek/mt76/mt7915/mac.c:328:35: sparse: sparse: restricted __le32 degrades to integer drivers/net/wireless/mediatek/mt76/mt7915/mac.c:345:41: sparse: sparse: cast to restricted __le32 drivers/net/wireless/mediatek/mt76/mt7915/mac.c:345:41: sparse: sparse: restricted __le32 degrades to integer drivers/net/wireless/mediatek/mt76/mt7915/mac.c:345:41: sparse: sparse: restricted __le32 degrades to integer drivers/net/wireless/mediatek/mt76/mt7915/mac.c:355:33: sparse: sparse: cast to restricted __le32 drivers/net/wireless/mediatek/mt76/mt7915/mac.c:355:33: sparse: sparse: restricted __le32 degrades to integer drivers/net/wireless/mediatek/mt76/mt7915/mac.c:355:33: sparse: sparse: restricted __le32 degrades to integer # https://github.com/nbd168/wireless/commit/e57b7901469fc0b021930b83a8094ba... git remote add nbd168-wireless https://github.com/nbd168/wireless git remote update nbd168-wireless git checkout e57b7901469fc0b021930b83a8094baaf3d81b09 vim +/mt7915_sta_rc_update +694 drivers/net/wireless/mediatek/mt76/mt7915/main.c e57b7901469fc0 Ryder Lee 2020-04-25 692 e57b7901469fc0 Ryder Lee 2020-04-25 693 static void e57b7901469fc0 Ryder Lee 2020-04-25 @694 mt7915_sta_rc_update(struct ieee80211_hw *hw, e57b7901469fc0 Ryder Lee 2020-04-25 695 struct ieee80211_vif *vif, e57b7901469fc0 Ryder Lee 2020-04-25 696 struct ieee80211_sta *sta, e57b7901469fc0 Ryder Lee 2020-04-25 697 u32 changed) e57b7901469fc0 Ryder Lee 2020-04-25 698 { e57b7901469fc0 Ryder Lee 2020-04-25 699 struct mt7915_sta *msta = (struct mt7915_sta *)sta->drv_priv; e57b7901469fc0 Ryder Lee 2020-04-25 700 e57b7901469fc0 Ryder Lee 2020-04-25 701 rcu_read_lock(); e57b7901469fc0 Ryder Lee 2020-04-25 702 sta = ieee80211_find_sta(vif, sta->addr); e57b7901469fc0 Ryder Lee 2020-04-25 703 if (!sta) { e57b7901469fc0 Ryder Lee 2020-04-25 704 rcu_read_unlock(); e57b7901469fc0 Ryder Lee 2020-04-25 705 return; e57b7901469fc0 Ryder Lee 2020-04-25 706 } e57b7901469fc0 Ryder Lee 2020-04-25 707 rcu_read_lock(); e57b7901469fc0 Ryder Lee 2020-04-25 708 e57b7901469fc0 Ryder Lee 2020-04-25 709 set_bit(changed, &msta->stats.changed); e57b7901469fc0 Ryder Lee 2020-04-25 710 ieee80211_queue_work(hw, &msta->stats_work); e57b7901469fc0 Ryder Lee 2020-04-25 711 } e57b7901469fc0 Ryder Lee 2020-04-25 712 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org