Hi Christophe, Thank you for the patch! Yet something to improve:
[auto build test ERROR on powerpc/next] [also build test ERROR on v4.17-rc2 next-20180426] [if your patch is applied to the wrong git tree, please drop us a note to help improve the system] url: https://github.com/0day-ci/linux/commits/Christophe-Leroy/powerpc-nohash-remove-hash-related-code-from-nohash-headers/20180425-182026 base: https://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux.git next config: powerpc-ppc64e_defconfig (attached as .config) compiler: powerpc64-linux-gnu-gcc (Debian 7.2.0-11) 7.2.0 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 make.cross ARCH=powerpc All errors (new ones prefixed by >>): In file included from arch/powerpc/include/asm/nohash/pgtable.h:6:0, from arch/powerpc/include/asm/pgtable.h:19, from include/linux/memremap.h:8, from include/linux/mm.h:27, from include/linux/mman.h:5, from arch/powerpc/kernel/asm-offsets.c:22: arch/powerpc/include/asm/nohash/64/pgtable.h: In function '__ptep_test_and_clear_young': >> arch/powerpc/include/asm/nohash/64/pgtable.h:214:6: error: implicit >> declaration of function 'pte_young'; did you mean 'pte_pud'? >> [-Werror=implicit-function-declaration] if (pte_young(*ptep)) ^~~~~~~~~ pte_pud In file included from arch/powerpc/include/asm/pgtable.h:19:0, from include/linux/memremap.h:8, from include/linux/mm.h:27, from include/linux/mman.h:5, from arch/powerpc/kernel/asm-offsets.c:22: arch/powerpc/include/asm/nohash/pgtable.h: At top level: >> arch/powerpc/include/asm/nohash/pgtable.h:20:19: error: static declaration >> of 'pte_young' follows non-static declaration static inline int pte_young(pte_t pte) { return pte_val(pte) & _PAGE_ACCESSED; } ^~~~~~~~~ In file included from arch/powerpc/include/asm/nohash/pgtable.h:6:0, from arch/powerpc/include/asm/pgtable.h:19, from include/linux/memremap.h:8, from include/linux/mm.h:27, from include/linux/mman.h:5, from arch/powerpc/kernel/asm-offsets.c:22: arch/powerpc/include/asm/nohash/64/pgtable.h:214:6: note: previous implicit declaration of 'pte_young' was here if (pte_young(*ptep)) ^~~~~~~~~ cc1: some warnings being treated as errors make[2]: *** [arch/powerpc/kernel/asm-offsets.s] Error 1 make[2]: Target '__build' not remade because of errors. make[1]: *** [prepare0] Error 2 make[1]: Target 'prepare' not remade because of errors. make: *** [sub-make] Error 2 vim +214 arch/powerpc/include/asm/nohash/64/pgtable.h 208 209 static inline int __ptep_test_and_clear_young(struct mm_struct *mm, 210 unsigned long addr, pte_t *ptep) 211 { 212 unsigned long old; 213 > 214 if (pte_young(*ptep)) 215 return 0; 216 old = pte_update(mm, addr, ptep, _PAGE_ACCESSED, 0, 0); 217 return (old & _PAGE_ACCESSED) != 0; 218 } 219 #define __HAVE_ARCH_PTEP_TEST_AND_CLEAR_YOUNG 220 #define ptep_test_and_clear_young(__vma, __addr, __ptep) \ 221 ({ \ 222 int __r; \ 223 __r = __ptep_test_and_clear_young((__vma)->vm_mm, __addr, __ptep); \ 224 __r; \ 225 }) 226 --- 0-DAY kernel test infrastructure Open Source Technology Center https://lists.01.org/pipermail/kbuild-all Intel Corporation
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