tree: https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git master head: 71941773e143369a73c9c4a3b62fbb60736a1182 commit: 6992f0b3f0fd879b31095263986ba1aedb27c83b [11110/11953] Kbuild: move to -std=gnu11 config: arm-randconfig-r015-20220313 (https://download.01.org/0day-ci/archive/20220315/202203150342.gwb1U9CV-lkp@xxxxxxxxx/config) compiler: clang version 15.0.0 (https://github.com/llvm/llvm-project 3e4950d7fa78ac83f33bbf1658e2f49a73719236) 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 # install arm cross compiling tool for clang build # apt-get install binutils-arm-linux-gnueabi # https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git/commit/?id=6992f0b3f0fd879b31095263986ba1aedb27c83b git remote add linux-next https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git git fetch --no-tags linux-next master git checkout 6992f0b3f0fd879b31095263986ba1aedb27c83b # save the config file to linux build tree mkdir build_dir COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=arm SHELL=/bin/bash If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp@xxxxxxxxx> All errors (new ones prefixed by >>): arch/arm/mach-sa1100/assabet.c:636:38: error: use of undeclared identifier 'PMD_MASK' unsigned long phys = __PREG(GPLR) & PMD_MASK; ^ arch/arm/mach-sa1100/assabet.c:638:13: error: use of undeclared identifier 'pmdval_t' int prot = PMD_TYPE_SECT | PMD_SECT_AP_WRITE | PMD_DOMAIN(DOMAIN_IO); ^ arch/arm/include/asm/pgtable-2level-hwdef.h:19:29: note: expanded from macro 'PMD_TYPE_SECT' #define PMD_TYPE_SECT (_AT(pmdval_t, 2) << 0) ^ arch/arm/mach-sa1100/assabet.c:638:29: error: use of undeclared identifier 'pmdval_t' int prot = PMD_TYPE_SECT | PMD_SECT_AP_WRITE | PMD_DOMAIN(DOMAIN_IO); ^ arch/arm/include/asm/pgtable-2level-hwdef.h:32:32: note: expanded from macro 'PMD_SECT_AP_WRITE' #define PMD_SECT_AP_WRITE (_AT(pmdval_t, 1) << 10) ^ arch/arm/mach-sa1100/assabet.c:638:49: error: use of undeclared identifier 'pmdval_t' int prot = PMD_TYPE_SECT | PMD_SECT_AP_WRITE | PMD_DOMAIN(DOMAIN_IO); ^ arch/arm/include/asm/pgtable-2level-hwdef.h:22:29: note: expanded from macro 'PMD_DOMAIN' #define PMD_DOMAIN(x) (_AT(pmdval_t, (x)) << 5) ^ >> arch/arm/mach-sa1100/assabet.c:641:8: error: implicit declaration of function 'pmd_off_k' is invalid in C99 [-Werror,-Wimplicit-function-declaration] pmd = pmd_off_k(virt); ^ arch/arm/mach-sa1100/assabet.c:641:6: warning: incompatible integer to pointer conversion assigning to 'pmd_t *' (aka 'unsigned long *') from 'int' [-Wint-conversion] pmd = pmd_off_k(virt); ^ ~~~~~~~~~~~~~~~ >> arch/arm/mach-sa1100/assabet.c:643:2: error: implicit declaration of function 'flush_pmd_entry' is invalid in C99 [-Werror,-Wimplicit-function-declaration] flush_pmd_entry(pmd); ^ arch/arm/mach-sa1100/assabet.c:746:13: warning: no previous prototype for function 'assabet_init_irq' [-Wmissing-prototypes] void __init assabet_init_irq(void) ^ arch/arm/mach-sa1100/assabet.c:746:1: note: declare 'static' if the function is not intended to be used outside of this translation unit void __init assabet_init_irq(void) ^ static 2 warnings and 6 errors generated. vim +/pmd_off_k +641 arch/arm/mach-sa1100/assabet.c ^1da177e4c3f41 Linus Torvalds 2005-04-16 627 ^1da177e4c3f41 Linus Torvalds 2005-04-16 628 /* ^1da177e4c3f41 Linus Torvalds 2005-04-16 629 * On Assabet, we must probe for the Neponset board _before_ ^1da177e4c3f41 Linus Torvalds 2005-04-16 630 * paging_init() has occurred to actually determine the amount ^1da177e4c3f41 Linus Torvalds 2005-04-16 631 * of RAM available. To do so, we map the appropriate IO section ^1da177e4c3f41 Linus Torvalds 2005-04-16 632 * in the page table here in order to access GPIO registers. ^1da177e4c3f41 Linus Torvalds 2005-04-16 633 */ ^1da177e4c3f41 Linus Torvalds 2005-04-16 634 static void __init map_sa1100_gpio_regs( void ) ^1da177e4c3f41 Linus Torvalds 2005-04-16 635 { ^1da177e4c3f41 Linus Torvalds 2005-04-16 636 unsigned long phys = __PREG(GPLR) & PMD_MASK; 3169663ac5902f Russell King 2012-06-06 637 unsigned long virt = (unsigned long)io_p2v(phys); ^1da177e4c3f41 Linus Torvalds 2005-04-16 638 int prot = PMD_TYPE_SECT | PMD_SECT_AP_WRITE | PMD_DOMAIN(DOMAIN_IO); ^1da177e4c3f41 Linus Torvalds 2005-04-16 639 pmd_t *pmd; ^1da177e4c3f41 Linus Torvalds 2005-04-16 640 e05c7b1f2bc4b7 Mike Rapoport 2020-06-08 @641 pmd = pmd_off_k(virt); ^1da177e4c3f41 Linus Torvalds 2005-04-16 642 *pmd = __pmd(phys | prot); ^1da177e4c3f41 Linus Torvalds 2005-04-16 @643 flush_pmd_entry(pmd); ^1da177e4c3f41 Linus Torvalds 2005-04-16 644 } ^1da177e4c3f41 Linus Torvalds 2005-04-16 645 :::::: The code at line 641 was first introduced by commit :::::: e05c7b1f2bc4b7b28199b9a7572f73436d97317e mm: pgtable: add shortcuts for accessing kernel PMD and PTE :::::: TO: Mike Rapoport <rppt@xxxxxxxxxxxxx> :::::: CC: Linus Torvalds <torvalds@xxxxxxxxxxxxxxxxxxxx> --- 0-DAY CI Kernel Test Service https://lists.01.org/hyperkitty/list/kbuild-all@xxxxxxxxxxxx
