tree: https://git.kernel.org/pub/scm/linux/kernel/git/jkirsher/next-queue.git dev-queue head: 5cf0cbb14925b7131baa959b35a2267d6bbb6651 commit: c2b9f24be5de6d9737de68d2d75ae3bc81f9b7db [8/33] i40e: optimise prefetch page refcount config: alpha-allyesconfig (attached as .config) compiler: alpha-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 c2b9f24be5de6d9737de68d2d75ae3bc81f9b7db # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross ARCH=alpha If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp(a)intel.com&gt; All errors (new ones prefixed by >>): In file included from drivers/net/ethernet/intel/i40e/i40e_txrx.c:4: include/linux/prefetch.h:65:49: warning: 'struct page' declared inside parameter list will not be visible outside of this definition or declaration 65 | static inline void prefetch_page_address(struct page *page) | ^~~~ drivers/net/ethernet/intel/i40e/i40e_txrx.c: In function 'i40e_get_rx_buffer': 1956 | prefetch_page_address(rx_buffer->page); | ~~~~~~~~~^~~~~~ | | | struct page * In file included from drivers/net/ethernet/intel/i40e/i40e_txrx.c:4: include/linux/prefetch.h:65:55: note: expected 'struct page *' but argument is of type 'struct page *' 65 | static inline void prefetch_page_address(struct page *page) | ~~~~~~~~~~~~~^~~~ cc1: some warnings being treated as errors vim +/prefetch_page_address +1956 drivers/net/ethernet/intel/i40e/i40e_txrx.c 1941 1942 /** 1943 * i40e_get_rx_buffer - Fetch Rx buffer and synchronize data for use 1944 * @rx_ring: rx descriptor ring to transact packets on 1945 * @size: size of buffer to add to skb 1946 * 1947 * This function will pull an Rx buffer from the ring and synchronize it 1948 * for use by the CPU. 1949 */ 1950 static struct i40e_rx_buffer *i40e_get_rx_buffer(struct i40e_ring *rx_ring, 1951 const unsigned int size) 1952 { 1953 struct i40e_rx_buffer *rx_buffer; 1954 1955 rx_buffer = i40e_rx_bi(rx_ring, rx_ring->next_to_clean); 1957 1958 /* we are reusing so sync this buffer for CPU use */ 1959 dma_sync_single_range_for_cpu(rx_ring->dev, 1960 rx_buffer->dma, 1961 rx_buffer->page_offset, 1962 size, 1963 DMA_FROM_DEVICE); 1964 1965 /* We have pulled a buffer for use, so decrement pagecnt_bias */ 1966 rx_buffer->pagecnt_bias--; 1967 1968 return rx_buffer; 1969 } 1970 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org