Hi Christophe, Thank you for the patch! Yet something to improve:
[auto build test ERROR on next-20200316] [cannot apply to powerpc/next v5.6-rc6 v5.6-rc5 v5.6-rc4 v5.6-rc6] [if your patch is applied to the wrong git tree, please drop us a note to help improve the system. BTW, we also suggest to use '--base' option to specify the base tree in git format-patch, please see https://stackoverflow.com/a/37406982] url: https://github.com/0day-ci/linux/commits/Christophe-Leroy/Use-hugepages-to-map-kernel-mem-on-8xx/20200317-065610 base: 8548fd2f20ed19b0e8c0585b71fdfde1ae00ae3c config: powerpc-tqm8xx_defconfig (attached as .config) compiler: powerpc-linux-gcc (GCC) 9.2.0 reproduce: wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross chmod +x ~/bin/make.cross # save the attached .config to linux build tree GCC_VERSION=9.2.0 make.cross ARCH=powerpc If you fix the issue, kindly add following tag Reported-by: kbuild test robot <l...@intel.com> All errors (new ones prefixed by >>): In file included from arch/powerpc/mm/fault.c:33: include/linux/hugetlb.h: In function 'hstate_inode': >> include/linux/hugetlb.h:522:9: error: implicit declaration of function >> 'HUGETLBFS_SB'; did you mean 'HUGETLBFS_MAGIC'? >> [-Werror=implicit-function-declaration] 522 | return HUGETLBFS_SB(i->i_sb)->hstate; | ^~~~~~~~~~~~ | HUGETLBFS_MAGIC >> include/linux/hugetlb.h:522:30: error: invalid type argument of '->' (have >> 'int') 522 | return HUGETLBFS_SB(i->i_sb)->hstate; | ^~ cc1: all warnings being treated as errors -- In file included from arch/powerpc/mm/mem.c:30: include/linux/hugetlb.h: In function 'hstate_inode': >> include/linux/hugetlb.h:522:9: error: implicit declaration of function >> 'HUGETLBFS_SB' [-Werror=implicit-function-declaration] 522 | return HUGETLBFS_SB(i->i_sb)->hstate; | ^~~~~~~~~~~~ >> include/linux/hugetlb.h:522:30: error: invalid type argument of '->' (have >> 'int') 522 | return HUGETLBFS_SB(i->i_sb)->hstate; | ^~ cc1: all warnings being treated as errors -- In file included from arch/powerpc/mm/nohash/8xx.c:12: include/linux/hugetlb.h: In function 'hstate_inode': >> include/linux/hugetlb.h:522:9: error: implicit declaration of function >> 'HUGETLBFS_SB' [-Werror=implicit-function-declaration] 522 | return HUGETLBFS_SB(i->i_sb)->hstate; | ^~~~~~~~~~~~ >> include/linux/hugetlb.h:522:30: error: invalid type argument of '->' (have >> 'int') 522 | return HUGETLBFS_SB(i->i_sb)->hstate; | ^~ At top level: arch/powerpc/mm/nohash/8xx.c:73:18: error: '__early_map_kernel_hugepage' defined but not used [-Werror=unused-function] 73 | static int __ref __early_map_kernel_hugepage(unsigned long va, phys_addr_t pa, | ^~~~~~~~~~~~~~~~~~~~~~~~~~~ cc1: all warnings being treated as errors -- In file included from arch/powerpc//mm/nohash/8xx.c:12: include/linux/hugetlb.h: In function 'hstate_inode': >> include/linux/hugetlb.h:522:9: error: implicit declaration of function >> 'HUGETLBFS_SB' [-Werror=implicit-function-declaration] 522 | return HUGETLBFS_SB(i->i_sb)->hstate; | ^~~~~~~~~~~~ >> include/linux/hugetlb.h:522:30: error: invalid type argument of '->' (have >> 'int') 522 | return HUGETLBFS_SB(i->i_sb)->hstate; | ^~ At top level: arch/powerpc//mm/nohash/8xx.c:73:18: error: '__early_map_kernel_hugepage' defined but not used [-Werror=unused-function] 73 | static int __ref __early_map_kernel_hugepage(unsigned long va, phys_addr_t pa, | ^~~~~~~~~~~~~~~~~~~~~~~~~~~ cc1: all warnings being treated as errors -- In file included from include/linux/migrate.h:8, from kernel///sched/sched.h:53, from kernel///sched/loadavg.c:9: include/linux/hugetlb.h: In function 'hstate_inode': >> include/linux/hugetlb.h:522:9: error: implicit declaration of function >> 'HUGETLBFS_SB'; did you mean 'HUGETLBFS_MAGIC'? >> [-Werror=implicit-function-declaration] 522 | return HUGETLBFS_SB(i->i_sb)->hstate; | ^~~~~~~~~~~~ | HUGETLBFS_MAGIC >> include/linux/hugetlb.h:522:30: error: invalid type argument of '->' (have >> 'int') 522 | return HUGETLBFS_SB(i->i_sb)->hstate; | ^~ cc1: some warnings being treated as errors vim +522 include/linux/hugetlb.h a5516438959d90 Andi Kleen 2008-07-23 519 a137e1cc6d6e7d Andi Kleen 2008-07-23 520 static inline struct hstate *hstate_inode(struct inode *i) a5516438959d90 Andi Kleen 2008-07-23 521 { 7fab358d90e6ba Chen Gang 2016-05-20 @522 return HUGETLBFS_SB(i->i_sb)->hstate; a5516438959d90 Andi Kleen 2008-07-23 523 } a5516438959d90 Andi Kleen 2008-07-23 524 :::::: The code at line 522 was first introduced by commit :::::: 7fab358d90e6ba9d9cb702bee0c8a5f5c13bb6df include/linux/hugetlb*.h: clean up code :::::: TO: Chen Gang <gang.chen.5...@gmail.com> :::::: CC: Linus Torvalds <torva...@linux-foundation.org> --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-...@lists.01.org
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