tree: https://github.com/intel/linux-intel-lts.git 5.4/yocto head: f74600f861eeb3536c7443943a3ce78a77c692dc commit: fabf035bcf07c8de58a4194b9440b566033892bb [10288/18528] net: stmmac: add stmmac_all_queue_pairs_enable|disable() for XDP setup config: i386-randconfig-s002-20211014 (attached as .config) compiler: gcc-9 (Debian 9.3.0-22) 9.3.0 reproduce: # apt-get install sparse # sparse version: v0.6.4-dirty # https://github.com/intel/linux-intel-lts/commit/fabf035bcf07c8de58a4194b9... git remote add intel-lts https://github.com/intel/linux-intel-lts.git git fetch --no-tags intel-lts 5.4/yocto git checkout fabf035bcf07c8de58a4194b9440b566033892bb # save the attached .config to linux build tree make W=1 C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' O=build_dir ARCH=i386 SHELL=/bin/bash drivers/net/ethernet/stmicro/stmmac/ If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp(a)intel.com&gt; sparse warnings: (new ones prefixed by >>) drivers/net/ethernet/stmicro/stmmac/stmmac_main.c:1462:6: sparse: sparse: symbol 'stmmac_alloc_rx_buffers' was not declared. Should it be static? drivers/net/ethernet/stmicro/stmmac/stmmac_main.c:2820:27: sparse: sparse: incorrect type in assignment (different base types) @@ expected restricted __le32 [usertype] etdes4 @@ got unsigned long @@ drivers/net/ethernet/stmicro/stmmac/stmmac_main.c:2820:27: sparse: expected restricted __le32 [usertype] etdes4 drivers/net/ethernet/stmicro/stmmac/stmmac_main.c:2820:27: sparse: got unsigned long drivers/net/ethernet/stmicro/stmmac/stmmac_main.c:2821:27: sparse: sparse: incorrect type in assignment (different base types) @@ expected restricted __le32 [usertype] etdes5 @@ got unsigned long @@ drivers/net/ethernet/stmicro/stmmac/stmmac_main.c:2821:27: sparse: expected restricted __le32 [usertype] etdes5 drivers/net/ethernet/stmicro/stmmac/stmmac_main.c:2821:27: sparse: got unsigned long drivers/net/ethernet/stmicro/stmmac/stmmac_main.c:2822:27: sparse: sparse: invalid assignment: |= drivers/net/ethernet/stmicro/stmmac/stmmac_main.c:2822:27: sparse: left side has type restricted __le32 drivers/net/ethernet/stmicro/stmmac/stmmac_main.c:2822:27: sparse: right side has type unsigned long drivers/net/ethernet/stmicro/stmmac/stmmac_main.c:5837:5: sparse: sparse: symbol 'stmmac_xdp_xmit' was not declared. Should it be static? drivers/net/ethernet/stmicro/stmmac/stmmac_main.c:6552:6: sparse: sparse: symbol 'stmmac_clean_all_tx_rings' was not declared. Should it be static? drivers/net/ethernet/stmicro/stmmac/stmmac_main.c:2394:57: sparse: sparse: context imbalance in 'stmmac_tx_clean' - unexpected unlock vim +/stmmac_all_queue_pairs_enable +5760 drivers/net/ethernet/stmicro/stmmac/stmmac_main.c 5759 5761 { 5762 int i; 5763 5764 mutex_lock(&priv->lock); 5765 5766 if (stmmac_enabled_xdp(priv)) 5767 priv->plat->normal_tx_queue_count = priv->plat->num_queue_pairs; 5768 else 5769 priv->plat->normal_tx_queue_count = 5770 priv->plat->tx_queues_to_use; 5771 5772 for (i = 0; i < priv->plat->num_queue_pairs; i++) { 5773 int err = stmmac_queue_pair_enable(priv, i); 5774 5775 if (err) 5776 return err; 5777 } 5778 5779 mutex_unlock(&priv->lock); 5780 5781 return 0; 5782 } 5783 5784 /** 5785 * stmmac_queue_pair_disable - Disables a queue pair 5786 * @priv: driver private structure 5787 * @queue_pair: queue pair 5788 * 5789 * Returns 0 on success, <0 on failure. 5790 **/ 5791 int stmmac_queue_pair_disable(struct stmmac_priv *priv, u16 qid) 5792 { 5793 u16 qp_num = priv->plat->num_queue_pairs; 5794 int ret; 5795 5796 if (qid >= qp_num) { 5797 netdev_err(priv->dev, 5798 "%s: qid (%d) > number of queue pairs (%d)\n", 5799 __func__, qid, qp_num); 5800 5801 return -EINVAL; 5802 } 5803 5804 stmmac_napi_control(priv, qid, false); 5805 ret = stmmac_txrx_irq_control(priv, qid, false); 5806 if (ret) 5807 return ret; 5808 stmmac_txrx_dma_control(priv, qid, false); 5809 stmmac_txrx_desc_control(priv, qid, false); 5810 5811 return ret; 5812 } 5813 5815 { 5816 int i; 5817 5818 mutex_lock(&priv->lock); 5819 5820 for (i = 0; i < priv->plat->num_queue_pairs; i++) { 5821 int err = stmmac_queue_pair_disable(priv, i); 5822 5823 if (err) 5824 return err; 5825 } 5826 5827 mutex_unlock(&priv->lock); 5828 5829 return 0; 5830 } 5831 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org