Hi Shay, Thank you for the patch! Perhaps something to improve: [auto build test WARNING on net-next/master] url: https://github.com/0day-ci/linux/commits/Shay-Agroskin/Use-build_skb-and-... base: https://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next.git dc8cf7550a703b8b9c94beed621c6c2474347eff config: i386-allyesconfig (attached as .config) compiler: gcc-9 (Debian 9.3.0-22) 9.3.0 reproduce (this is a W=1 build): # https://github.com/0day-ci/linux/commit/d37d1c673e22e4e7c24eb8bbc4c5662a7... git remote add linux-review https://github.com/0day-ci/linux git fetch --no-tags linux-review Shay-Agroskin/Use-build_skb-and-reorganize-some-code-in-ENA/20210609-000712 git checkout d37d1c673e22e4e7c24eb8bbc4c5662a7812842c # save the attached .config to linux build tree make W=1 ARCH=i386 If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp(a)intel.com&gt; All warnings (new ones prefixed by >>): 978 | struct page *ena_alloc_map_page(struct ena_ring *rx_ring, dma_addr_t *dma) | ^~~~~~~~~~~~~~~~~~ vim +/ena_alloc_map_page +978 drivers/net/ethernet/amazon/ena/ena_netdev.c 977 979 { 980 struct page *page; 981 982 /* This would allocate the page on the same NUMA node the executing code 983 * is running on. 984 */ 985 page = dev_alloc_page(); 986 if (!page) { 987 ena_increase_stat(&rx_ring->rx_stats.page_alloc_fail, 1, 988 &rx_ring->syncp); 989 return ERR_PTR(-ENOSPC); 990 } 991 992 /* To enable NIC-side port-mirroring, AKA SPAN port, 993 * we make the buffer readable from the nic as well 994 */ 995 *dma = dma_map_page(rx_ring->dev, page, 0, ENA_PAGE_SIZE, 996 DMA_BIDIRECTIONAL); 997 if (unlikely(dma_mapping_error(rx_ring->dev, *dma))) { 998 ena_increase_stat(&rx_ring->rx_stats.dma_mapping_err, 1, 999 &rx_ring->syncp); 1000 __free_page(page); 1001 return ERR_PTR(-EIO); 1002 } 1003 1004 return page; 1005 } 1006 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org