Hi Yunsheng, Thank you for the patch! Yet something to improve: [auto build test ERROR on net-next/master] [also build test ERROR on net/master linus/master v5.14-rc1 next-20210714] [cannot apply to sparc-next/master] [If your patch is applied to the wrong git tree, kindly drop us a note. And when submitting patch, we suggest to use '--base' as documented in https://git-scm.com/docs/git-format-patch] url: https://github.com/0day-ci/linux/commits/Yunsheng-Lin/add-frag-page-suppo... base: https://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next.git 5e437416ff66981d8154687cfdf7de50b1d82bfc config: sparc-defconfig (attached as .config) compiler: sparc-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 # https://github.com/0day-ci/linux/commit/247943d70c2069ca3fa3a272f3eb26b46... git remote add linux-review https://github.com/0day-ci/linux git fetch --no-tags linux-review Yunsheng-Lin/add-frag-page-support-in-page-pool/20210714-173612 git checkout 247943d70c2069ca3fa3a272f3eb26b463e17f4d # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross ARCH=sparc 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 include/linux/skbuff.h:40, from include/linux/if_ether.h:19, from include/linux/etherdevice.h:20, from arch/sparc/kernel/idprom.c:13: include/net/page_pool.h: In function 'page_pool_get_dma_addr': 209 | ret <<= 32; | ^~~ include/net/page_pool.h: In function 'page_pool_set_dma_addr': 220 | addr >>= 32; | ^~~ cc1: all warnings being treated as errors vim +209 include/net/page_pool.h 200 201 #define PAGE_POOL_DMA_USE_PP_FRAG_COUNT \ 202 (sizeof(dma_addr_t) > sizeof(unsigned long)) 203 204 static inline dma_addr_t page_pool_get_dma_addr(struct page *page) 205 { 206 dma_addr_t ret = page->dma_addr; 207 208 if (PAGE_POOL_DMA_USE_PP_FRAG_COUNT) { 210 ret |= atomic_long_read(&page->pp_frag_count) & PAGE_MASK; 211 } 212 213 return ret; 214 } 215 216 static inline void page_pool_set_dma_addr(struct page *page, dma_addr_t addr) 217 { 218 if (PAGE_POOL_DMA_USE_PP_FRAG_COUNT) { 219 atomic_long_set(&page->pp_frag_count, addr & PAGE_MASK); 221 } 222 223 page->dma_addr = addr; 224 } 225 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org