tree: https://github.com/rgushchin/linux.git fix_vmstats head: 4ec858b5201ae067607e82706b36588631c1b990 commit: 938dda772d9d05074bfe1baa0dc18873fbf4fedb [21/221] include/asm-generic/5level-fixup.h: fix variable 'p4d' set but not used config: parisc-c3000_defconfig (attached as .config) compiler: hppa-linux-gcc (GCC) 7.4.0 reproduce: wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross chmod +x ~/bin/make.cross git checkout 938dda772d9d05074bfe1baa0dc18873fbf4fedb # save the attached .config to linux build tree GCC_VERSION=7.4.0 make.cross ARCH=parisc If you fix the issue, kindly add following tag Reported-by: kbuild test robot <lkp@xxxxxxxxx> All error/warnings (new ones prefixed by >>): In file included from include/asm-generic/4level-fixup.h:38:0, from arch/parisc/include/asm/pgtable.h:5, from arch/parisc/include/asm/io.h:6, from include/linux/io.h:13, from sound/core/pcm_memory.c:7: >> include/asm-generic/5level-fixup.h:14:18: error: unknown type name 'pgd_t'; did you mean 'pid_t'? #define p4d_t pgd_t ^ >> include/asm-generic/5level-fixup.h:24:28: note: in expansion of macro 'p4d_t' static inline int p4d_none(p4d_t p4d) ^~~~~ >> include/asm-generic/5level-fixup.h:14:18: error: unknown type name 'pgd_t'; did you mean 'pid_t'? #define p4d_t pgd_t ^ include/asm-generic/5level-fixup.h:29:27: note: in expansion of macro 'p4d_t' static inline int p4d_bad(p4d_t p4d) ^~~~~ >> include/asm-generic/5level-fixup.h:14:18: error: unknown type name 'pgd_t'; did you mean 'pid_t'? #define p4d_t pgd_t ^ include/asm-generic/5level-fixup.h:34:31: note: in expansion of macro 'p4d_t' static inline int p4d_present(p4d_t p4d) ^~~~~ In file included from arch/parisc/include/asm/pgtable.h:583:0, from arch/parisc/include/asm/io.h:6, from include/linux/io.h:13, from sound/core/pcm_memory.c:7: include/asm-generic/pgtable.h: In function 'p4d_none_or_clear_bad': >> include/asm-generic/pgtable.h:578:6: error: implicit declaration of function 'p4d_none'; did you mean 'pgd_none'? [-Werror=implicit-function-declaration] if (p4d_none(*p4d)) ^~~~~~~~ pgd_none In file included from include/linux/init.h:5:0, from include/linux/io.h:10, from sound/core/pcm_memory.c:7: >> include/asm-generic/pgtable.h:580:15: error: implicit declaration of function 'p4d_bad'; did you mean 'pgd_bad'? [-Werror=implicit-function-declaration] if (unlikely(p4d_bad(*p4d))) { ^ include/linux/compiler.h:78:42: note: in definition of macro 'unlikely' # define unlikely(x) __builtin_expect(!!(x), 0) ^ cc1: some warnings being treated as errors vim +14 include/asm-generic/5level-fixup.h 505a60e225606f Kirill A. Shutemov 2017-03-09 13 505a60e225606f Kirill A. Shutemov 2017-03-09 @14 #define p4d_t pgd_t 505a60e225606f Kirill A. Shutemov 2017-03-09 15 505a60e225606f Kirill A. Shutemov 2017-03-09 16 #define pud_alloc(mm, p4d, address) \ 505a60e225606f Kirill A. Shutemov 2017-03-09 17 ((unlikely(pgd_none(*(p4d))) && __pud_alloc(mm, p4d, address)) ? \ 505a60e225606f Kirill A. Shutemov 2017-03-09 18 NULL : pud_offset(p4d, address)) 505a60e225606f Kirill A. Shutemov 2017-03-09 19 505a60e225606f Kirill A. Shutemov 2017-03-09 20 #define p4d_alloc(mm, pgd, address) (pgd) 505a60e225606f Kirill A. Shutemov 2017-03-09 21 #define p4d_offset(pgd, start) (pgd) 938dda772d9d05 Qian Cai 2019-08-09 22 938dda772d9d05 Qian Cai 2019-08-09 23 #ifndef __ASSEMBLY__ 938dda772d9d05 Qian Cai 2019-08-09 @24 static inline int p4d_none(p4d_t p4d) 938dda772d9d05 Qian Cai 2019-08-09 25 { 938dda772d9d05 Qian Cai 2019-08-09 26 return 0; 938dda772d9d05 Qian Cai 2019-08-09 27 } 938dda772d9d05 Qian Cai 2019-08-09 28 :::::: The code at line 14 was first introduced by commit :::::: 505a60e225606fbd3d2eadc31ff793d939ba66f1 asm-generic: introduce 5level-fixup.h :::::: TO: Kirill A. Shutemov <kirill.shutemov@xxxxxxxxxxxxxxx> :::::: CC: Linus Torvalds <torvalds@xxxxxxxxxxxxxxxxxxxx> --- 0-DAY kernel test infrastructure Open Source Technology Center https://lists.01.org/pipermail/kbuild-all Intel Corporation
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