tree: https://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm.git mm-unstable head: 706370e5c2ea7bb4544eee6e1172c4d68117a526 commit: 5b0de55b24615b5f5f600e2a61c297a0432a5e82 [321/323] sh/mm: enable ARCH_HAS_VM_GET_PAGE_PROT config: sh-allmodconfig (https://download.01.org/0day-ci/archive/20220703/202207030224.tqi3q1Wh-lkp@xxxxxxxxx/config) compiler: sh4-linux-gcc (GCC) 11.3.0 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://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm.git/commit/?id=5b0de55b24615b5f5f600e2a61c297a0432a5e82 git remote add akpm-mm https://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm.git git fetch --no-tags akpm-mm mm-unstable git checkout 5b0de55b24615b5f5f600e2a61c297a0432a5e82 # save the config file mkdir build_dir && cp config build_dir/.config COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-11.3.0 make.cross W=1 O=build_dir ARCH=sh SHELL=/bin/bash If you fix the issue, kindly add following tag where applicable Reported-by: kernel test robot <lkp@xxxxxxxxx> All errors (new ones prefixed by >>): In file included from arch/sh/include/asm/io.h:21, from include/linux/io.h:13, from arch/sh/mm/mmap.c:10: >> include/linux/pgtable.h:1713:10: error: redefinition of 'vm_get_page_prot' 1713 | pgprot_t vm_get_page_prot(unsigned long vm_flags) \ | ^~~~~~~~~~~~~~~~ arch/sh/mm/mmap.c:184:1: note: in expansion of macro 'DECLARE_VM_GET_PAGE_PROT' 184 | DECLARE_VM_GET_PAGE_PROT | ^~~~~~~~~~~~~~~~~~~~~~~~ In file included from arch/sh/mm/mmap.c:11: include/linux/mm.h:2864:24: note: previous definition of 'vm_get_page_prot' with type 'pgprot_t(long unsigned int)' 2864 | static inline pgprot_t vm_get_page_prot(unsigned long vm_flags) | ^~~~~~~~~~~~~~~~ vim +/vm_get_page_prot +1713 include/linux/pgtable.h c0f8aa4fa815da Daniel Axtens 2021-06-28 1691 d3af9262355115 Anshuman Khandual 2022-06-30 1692 /* description of effects of mapping type and prot in current implementation. d3af9262355115 Anshuman Khandual 2022-06-30 1693 * this is due to the limited x86 page protection hardware. The expected d3af9262355115 Anshuman Khandual 2022-06-30 1694 * behavior is in parens: d3af9262355115 Anshuman Khandual 2022-06-30 1695 * d3af9262355115 Anshuman Khandual 2022-06-30 1696 * map_type prot d3af9262355115 Anshuman Khandual 2022-06-30 1697 * PROT_NONE PROT_READ PROT_WRITE PROT_EXEC d3af9262355115 Anshuman Khandual 2022-06-30 1698 * MAP_SHARED r: (no) no r: (yes) yes r: (no) yes r: (no) yes d3af9262355115 Anshuman Khandual 2022-06-30 1699 * w: (no) no w: (no) no w: (yes) yes w: (no) no d3af9262355115 Anshuman Khandual 2022-06-30 1700 * x: (no) no x: (no) yes x: (no) yes x: (yes) yes d3af9262355115 Anshuman Khandual 2022-06-30 1701 * d3af9262355115 Anshuman Khandual 2022-06-30 1702 * MAP_PRIVATE r: (no) no r: (yes) yes r: (no) yes r: (no) yes d3af9262355115 Anshuman Khandual 2022-06-30 1703 * w: (no) no w: (no) no w: (copy) copy w: (no) no d3af9262355115 Anshuman Khandual 2022-06-30 1704 * x: (no) no x: (no) yes x: (no) yes x: (yes) yes d3af9262355115 Anshuman Khandual 2022-06-30 1705 * d3af9262355115 Anshuman Khandual 2022-06-30 1706 * On arm64, PROT_EXEC has the following behaviour for both MAP_SHARED and d3af9262355115 Anshuman Khandual 2022-06-30 1707 * MAP_PRIVATE (with Enhanced PAN supported): d3af9262355115 Anshuman Khandual 2022-06-30 1708 * r: (no) no d3af9262355115 Anshuman Khandual 2022-06-30 1709 * w: (no) no d3af9262355115 Anshuman Khandual 2022-06-30 1710 * x: (yes) yes d3af9262355115 Anshuman Khandual 2022-06-30 1711 */ d3af9262355115 Anshuman Khandual 2022-06-30 1712 #define DECLARE_VM_GET_PAGE_PROT \ d3af9262355115 Anshuman Khandual 2022-06-30 @1713 pgprot_t vm_get_page_prot(unsigned long vm_flags) \ d3af9262355115 Anshuman Khandual 2022-06-30 1714 { \ d3af9262355115 Anshuman Khandual 2022-06-30 1715 return protection_map[vm_flags & \ d3af9262355115 Anshuman Khandual 2022-06-30 1716 (VM_READ | VM_WRITE | VM_EXEC | VM_SHARED)]; \ d3af9262355115 Anshuman Khandual 2022-06-30 1717 } \ d3af9262355115 Anshuman Khandual 2022-06-30 1718 EXPORT_SYMBOL(vm_get_page_prot); d3af9262355115 Anshuman Khandual 2022-06-30 1719 :::::: The code at line 1713 was first introduced by commit :::::: d3af92623551153853497bf6434b9b4843ab78e1 mm/mmap: define DECLARE_VM_GET_PAGE_PROT :::::: TO: Anshuman Khandual <anshuman.khandual@xxxxxxx> :::::: CC: akpm <akpm@xxxxxxxxxxxxxxxxxxxx> -- 0-DAY CI Kernel Test Service https://01.org/lkp
