Hi Miaohe, kernel test robot noticed the following build errors: [auto build test ERROR on akpm-mm/mm-everything] [also build test ERROR on linus/master next-20240523] [cannot apply to v6.9] [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#_base_tree_information] url: https://github.com/intel-lab-lkp/linux/commits/Miaohe-Lin/mm-memory-failure-simplify-put_ref_page/20240524-171903 base: https://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm.git mm-everything patch link: https://lore.kernel.org/r/20240524091310.1430048-11-linmiaohe%40huawei.com patch subject: [PATCH 10/13] mm/memory-failure: move some function declarations into internal.h config: powerpc-allmodconfig (https://download.01.org/0day-ci/archive/20240525/202405251049.hxjwX7zO-lkp@xxxxxxxxx/config) compiler: powerpc64-linux-gcc (GCC) 13.2.0 reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20240525/202405251049.hxjwX7zO-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/202405251049.hxjwX7zO-lkp@xxxxxxxxx/ All errors (new ones prefixed by >>): drivers/vfio/vfio_iommu_spapr_tce.c: In function 'tce_page_is_contained': >> drivers/vfio/vfio_iommu_spapr_tce.c:195:16: error: implicit declaration of function 'page_shift'; did you mean 'page_size'? [-Werror=implicit-function-declaration] 195 | return page_shift(compound_head(page)) >= it_page_shift; | ^~~~~~~~~~ | page_size cc1: some warnings being treated as errors -- arch/powerpc/mm/book3s64/iommu_api.c: In function 'mm_iommu_do_alloc': >> arch/powerpc/mm/book3s64/iommu_api.c:155:45: error: implicit declaration of function 'page_shift'; did you mean 'page_size'? [-Werror=implicit-function-declaration] 155 | pageshift = page_shift(compound_head(page)); | ^~~~~~~~~~ | page_size cc1: some warnings being treated as errors -- drivers/net/ethernet/ibm/ehea/ehea_qmr.c: In function 'ehea_is_hugepage': >> drivers/net/ethernet/ibm/ehea/ehea_qmr.c:676:13: error: implicit declaration of function 'page_shift'; did you mean 'page_size'? [-Werror=implicit-function-declaration] 676 | if (page_shift(pfn_to_page(pfn)) != EHEA_HUGEPAGESHIFT) | ^~~~~~~~~~ | page_size cc1: some warnings being treated as errors vim +195 drivers/vfio/vfio_iommu_spapr_tce.c 2157e7b82f3b81 Alexey Kardashevskiy 2015-06-05 179 c10c21efa4bcca Alexey Kardashevskiy 2018-12-19 180 static bool tce_page_is_contained(struct mm_struct *mm, unsigned long hpa, 94ad9338109fe9 Matthew Wilcox (Oracle 2019-09-23 181) unsigned int it_page_shift) e432bc7e15d802 Alexey Kardashevskiy 2015-06-05 182 { c10c21efa4bcca Alexey Kardashevskiy 2018-12-19 183 struct page *page; c10c21efa4bcca Alexey Kardashevskiy 2018-12-19 184 unsigned long size = 0; c10c21efa4bcca Alexey Kardashevskiy 2018-12-19 185 94ad9338109fe9 Matthew Wilcox (Oracle 2019-09-23 186) if (mm_iommu_is_devmem(mm, hpa, it_page_shift, &size)) 94ad9338109fe9 Matthew Wilcox (Oracle 2019-09-23 187) return size == (1UL << it_page_shift); c10c21efa4bcca Alexey Kardashevskiy 2018-12-19 188 c10c21efa4bcca Alexey Kardashevskiy 2018-12-19 189 page = pfn_to_page(hpa >> PAGE_SHIFT); e432bc7e15d802 Alexey Kardashevskiy 2015-06-05 190 /* e432bc7e15d802 Alexey Kardashevskiy 2015-06-05 191 * Check that the TCE table granularity is not bigger than the size of e432bc7e15d802 Alexey Kardashevskiy 2015-06-05 192 * a page we just found. Otherwise the hardware can get access to e432bc7e15d802 Alexey Kardashevskiy 2015-06-05 193 * a bigger memory chunk that it should. e432bc7e15d802 Alexey Kardashevskiy 2015-06-05 194 */ 94ad9338109fe9 Matthew Wilcox (Oracle 2019-09-23 @195) return page_shift(compound_head(page)) >= it_page_shift; e432bc7e15d802 Alexey Kardashevskiy 2015-06-05 196 } e432bc7e15d802 Alexey Kardashevskiy 2015-06-05 197 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki