On Tue, 2019-08-13 at 11:33 +0800, kbuild test robot wrote: > 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/mak > e.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 I am unable to reproduce this on today's linux-next tree. What's point of testing this particular personal git tree/branch? # make CROSS_COMPILE=/root/0day/gcc-7.4.0-nolibc/hppa-linux/bin/hppa-linux- -- jobs=96 ARCH=parisc CALL scripts/atomic/check-atomics.sh CALL scripts/checksyscalls.sh CHK include/generated/compile.h Building modules, stage 2. MODPOST 86 modules # echo $? 0 > > 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
