Hi Suman, 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/Suman-Ghosh/octeontx2-pf-use-xdp_return_frame-to-free-xdp-buffers/20250206-165634 base: net-next/main patch link: https://lore.kernel.org/r/20250206085034.1978172-7-sumang%40marvell.com patch subject: [net-next PATCH v5 6/6] octeontx2-pf: AF_XDP zero copy transmit support config: x86_64-buildonly-randconfig-006-20250207 (https://download.01.org/0day-ci/archive/20250207/202502071925.3T93J9MM-lkp@xxxxxxxxx/config) compiler: clang version 19.1.3 (https://github.com/llvm/llvm-project ab51eccf88f5321e7c60591c5546b254b6afab99) reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20250207/202502071925.3T93J9MM-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/202502071925.3T93J9MM-lkp@xxxxxxxxx/ All warnings (new ones prefixed by >>): >> drivers/net/ethernet/marvell/octeontx2/nic/otx2_txrx.c:112:6: warning: variable 'iova' set but not used [-Wunused-but-set-variable] 112 | u64 iova; | ^ 1 warning generated. vim +/iova +112 drivers/net/ethernet/marvell/octeontx2/nic/otx2_txrx.c 104 105 static void otx2_xdp_snd_pkt_handler(struct otx2_nic *pfvf, 106 struct otx2_snd_queue *sq, 107 struct nix_cqe_tx_s *cqe, 108 int *xsk_frames) 109 { 110 struct nix_send_comp_s *snd_comp = &cqe->comp; 111 struct sg_list *sg; > 112 u64 iova; 113 114 sg = &sq->sg[snd_comp->sqe_id]; 115 116 if (sg->flags & OTX2_AF_XDP_FRAME) { 117 (*xsk_frames)++; 118 return; 119 } 120 121 iova = sg->dma_addr[0]; 122 if (sg->flags & OTX2_XDP_REDIRECT) 123 otx2_dma_unmap_page(pfvf, sg->dma_addr[0], sg->size[0], DMA_TO_DEVICE); 124 xdp_return_frame((struct xdp_frame *)sg->skb); 125 sg->skb = (u64)NULL; 126 } 127 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki
