Hi Romain, kernel test robot noticed the following build warnings: [auto build test WARNING on net-next/main] url: https://github.com/intel-lab-lkp/linux/commits/Romain-Gantois/net-dt-bindings-Introduce-the-Qualcomm-IPQESS-Ethernet-switch/20231023-235323 base: net-next/main patch link: https://lore.kernel.org/r/20231023155013.512999-4-romain.gantois%40bootlin.com patch subject: [PATCH net-next 3/5] net: ipqess: introduce the Qualcomm IPQESS driver config: arc-allmodconfig (https://download.01.org/0day-ci/archive/20231024/202310242300.y8Z3ImgQ-lkp@xxxxxxxxx/config) compiler: arceb-elf-gcc (GCC) 13.2.0 reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20231024/202310242300.y8Z3ImgQ-lkp@xxxxxxxxx/reproduce) If you fix the issue in a separate patch/commit (i.e. not just a new version of the same patch/commit), kindly add following tags | Reported-by: kernel test robot <lkp@xxxxxxxxx> | Closes: https://lore.kernel.org/oe-kbuild-all/202310242300.y8Z3ImgQ-lkp@xxxxxxxxx/ All warnings (new ones prefixed by >>): drivers/net/ethernet/qualcomm/ipqess/ipqess_edma.c: In function 'ipqess_edma_rx_buf_prepare': >> drivers/net/ethernet/qualcomm/ipqess/ipqess_edma.c:156:25: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast] 156 | (struct ipqess_edma_rx_desc *)buf->dma; | ^ vim +156 drivers/net/ethernet/qualcomm/ipqess/ipqess_edma.c 139 140 static int ipqess_edma_rx_buf_prepare(struct ipqess_edma_buf *buf, 141 struct ipqess_edma_rx_ring *rx_ring) 142 { 143 memset(buf->skb->data, 0, sizeof(struct ipqess_edma_rx_desc)); 144 145 buf->dma = dma_map_single(rx_ring->ppdev, buf->skb->data, 146 IPQESS_EDMA_RX_HEAD_BUFF_SIZE, 147 DMA_FROM_DEVICE); 148 if (dma_mapping_error(rx_ring->ppdev, buf->dma)) { 149 dev_kfree_skb_any(buf->skb); 150 buf->skb = NULL; 151 return -EFAULT; 152 } 153 154 buf->length = IPQESS_EDMA_RX_HEAD_BUFF_SIZE; 155 rx_ring->hw_desc[rx_ring->head] = > 156 (struct ipqess_edma_rx_desc *)buf->dma; 157 rx_ring->head = (rx_ring->head + 1) % IPQESS_EDMA_RX_RING_SIZE; 158 159 ipqess_edma_m32(rx_ring->edma, IPQESS_EDMA_RFD_PROD_IDX_BITS, 160 (rx_ring->head + IPQESS_EDMA_RX_RING_SIZE - 1) 161 % IPQESS_EDMA_RX_RING_SIZE, 162 IPQESS_EDMA_REG_RFD_IDX_Q(rx_ring->idx)); 163 164 return 0; 165 } 166 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki