Hi Sameeh, FYI, the error/warning still remains.
tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master head: 3e08a95294a4fb3702bb3d35ed08028433c37fe6 commit: 838c93dc5449e5d6378bae117b0a65a122cf7361 net: ena: implement XDP drop support date: 7 months ago config: ia64-randconfig-r013-20200624 (attached as .config) compiler: ia64-linux-gcc (GCC) 9.3.0 reproduce (this is a W=1 build): wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross chmod +x ~/bin/make.cross git checkout 838c93dc5449e5d6378bae117b0a65a122cf7361 # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross ARCH=ia64 If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <[email protected]> All warnings (new ones prefixed by >>): drivers/net/ethernet/amazon/ena/ena_netdev.c:150:6: warning: no previous prototype for 'ena_xdp_exchange_program_rx_in_range' [-Wmissing-prototypes] 150 | void ena_xdp_exchange_program_rx_in_range(struct ena_adapter *adapter, | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ In file included from arch/ia64/include/uapi/asm/intrinsics.h:22, from arch/ia64/include/asm/intrinsics.h:11, from arch/ia64/include/asm/bitops.h:19, from include/linux/bitops.h:26, from include/linux/bitmap.h:8, from include/linux/ethtool.h:16, from drivers/net/ethernet/amazon/ena/ena_netdev.c:38: drivers/net/ethernet/amazon/ena/ena_netdev.c: In function 'ena_xdp_exchange_program_rx_in_range': arch/ia64/include/uapi/asm/cmpxchg.h:57:2: warning: value computed is not used [-Wunused-value] 57 | ((__typeof__(*(ptr))) __xchg((unsigned long) (x), (ptr), sizeof(*(ptr)))) | ~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ >> drivers/net/ethernet/amazon/ena/ena_netdev.c:160:3: note: in expansion of >> macro 'xchg' 160 | xchg(&rx_ring->xdp_bpf_prog, prog); | ^~~~ drivers/net/ethernet/amazon/ena/ena_netdev.c: At top level: drivers/net/ethernet/amazon/ena/ena_netdev.c:168:6: warning: no previous prototype for 'ena_xdp_exchange_program' [-Wmissing-prototypes] 168 | void ena_xdp_exchange_program(struct ena_adapter *adapter, | ^~~~~~~~~~~~~~~~~~~~~~~~ drivers/net/ethernet/amazon/ena/ena_netdev.c:1154:5: warning: no previous prototype for 'ena_xdp_handle_buff' [-Wmissing-prototypes] 1154 | int ena_xdp_handle_buff(struct ena_ring *rx_ring, struct xdp_buff *xdp) | ^~~~~~~~~~~~~~~~~~~ vim +/xchg +160 drivers/net/ethernet/amazon/ena/ena_netdev.c 149 150 void ena_xdp_exchange_program_rx_in_range(struct ena_adapter *adapter, 151 struct bpf_prog *prog, 152 int first, 153 int count) 154 { 155 struct ena_ring *rx_ring; 156 int i = 0; 157 158 for (i = first; i < count; i++) { 159 rx_ring = &adapter->rx_ring[i]; > 160 xchg(&rx_ring->xdp_bpf_prog, prog); 161 if (prog) 162 rx_ring->rx_headroom = XDP_PACKET_HEADROOM; 163 else 164 rx_ring->rx_headroom = 0; 165 } 166 } 167 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/[email protected]
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