tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master head: 3aaf0a27ffc29b19a62314edd684b9bc6346f9a8 commit: e05c7b1f2bc4b7b28199b9a7572f73436d97317e mm: pgtable: add shortcuts for accessing kernel PMD and PTE date: 8 months ago config: arm-randconfig-r014-20210203 (attached as .config) compiler: arm-linux-gnueabi-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://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=e05c7b1f2bc4b7b28199b9a7572f73436d97317e git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git git fetch --no-tags linus master git checkout e05c7b1f2bc4b7b28199b9a7572f73436d97317e # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross ARCH=arm If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp@xxxxxxxxx> All error/warnings (new ones prefixed by >>): arch/arm/mach-sa1100/assabet.c: In function 'map_sa1100_gpio_regs': arch/arm/mach-sa1100/assabet.c:630:38: error: 'PMD_MASK' undeclared (first use in this function); did you mean 'P4D_MASK'? 630 | unsigned long phys = __PREG(GPLR) & PMD_MASK; | ^~~~~~~~ | P4D_MASK arch/arm/mach-sa1100/assabet.c:630:38: note: each undeclared identifier is reported only once for each function it appears in In file included from include/vdso/const.h:5, from include/linux/const.h:4, from include/linux/bits.h:5, from include/linux/bitops.h:5, from include/linux/kernel.h:12, from arch/arm/mach-sa1100/assabet.c:10: arch/arm/include/asm/pgtable-2level-hwdef.h:19:29: error: 'pmdval_t' undeclared (first use in this function) 19 | #define PMD_TYPE_SECT (_AT(pmdval_t, 2) << 0) | ^~~~~~~~ include/uapi/linux/const.h:22:20: note: in definition of macro '_AT' 22 | #define _AT(T,X) ((T)(X)) | ^ arch/arm/mach-sa1100/assabet.c:632:13: note: in expansion of macro 'PMD_TYPE_SECT' 632 | int prot = PMD_TYPE_SECT | PMD_SECT_AP_WRITE | PMD_DOMAIN(DOMAIN_IO); | ^~~~~~~~~~~~~ >> arch/arm/mach-sa1100/assabet.c:635:8: error: implicit declaration of function 'pmd_off_k'; did you mean 'pmd_offset'? [-Werror=implicit-function-declaration] 635 | pmd = pmd_off_k(virt); | ^~~~~~~~~ | pmd_offset >> arch/arm/mach-sa1100/assabet.c:635:6: warning: assignment to 'pmd_t *' {aka 'long unsigned int *'} from 'int' makes pointer from integer without a cast [-Wint-conversion] 635 | pmd = pmd_off_k(virt); | ^ arch/arm/mach-sa1100/assabet.c:637:2: error: implicit declaration of function 'flush_pmd_entry' [-Werror=implicit-function-declaration] 637 | flush_pmd_entry(pmd); | ^~~~~~~~~~~~~~~ arch/arm/mach-sa1100/assabet.c: At top level: arch/arm/mach-sa1100/assabet.c:740:13: warning: no previous prototype for 'assabet_init_irq' [-Wmissing-prototypes] 740 | void __init assabet_init_irq(void) | ^~~~~~~~~~~~~~~~ arch/arm/mach-sa1100/assabet.c:693:24: warning: 'assabet_io_desc' defined but not used [-Wunused-variable] 693 | static struct map_desc assabet_io_desc[] __initdata = { | ^~~~~~~~~~~~~~~ cc1: some warnings being treated as errors vim +635 arch/arm/mach-sa1100/assabet.c 621 622 /* 623 * On Assabet, we must probe for the Neponset board _before_ 624 * paging_init() has occurred to actually determine the amount 625 * of RAM available. To do so, we map the appropriate IO section 626 * in the page table here in order to access GPIO registers. 627 */ 628 static void __init map_sa1100_gpio_regs( void ) 629 { 630 unsigned long phys = __PREG(GPLR) & PMD_MASK; 631 unsigned long virt = (unsigned long)io_p2v(phys); 632 int prot = PMD_TYPE_SECT | PMD_SECT_AP_WRITE | PMD_DOMAIN(DOMAIN_IO); 633 pmd_t *pmd; 634 > 635 pmd = pmd_off_k(virt); 636 *pmd = __pmd(phys | prot); 637 flush_pmd_entry(pmd); 638 } 639 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@xxxxxxxxxxxx
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