Hi Balbir, [auto build test ERROR on powerpc/next] [also build test ERROR on v4.13-rc1 next-20170721] [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/Balbir-Singh/powerpc-xmon-support-dumping-software-pagetables/20170723-002848 base: https://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux.git next config: powerpc-akebono_defconfig (attached as .config) compiler: powerpc-linux-gnu-gcc (Debian 6.1.1-9) 6.1.1 20160705 reproduce: wget https://raw.githubusercontent.com/01org/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 >>): arch/powerpc/xmon/xmon.c: In function 'show_pte': >> arch/powerpc/xmon/xmon.c:2929:6: error: implicit declaration of function >> 'pud_huge' [-Werror=implicit-function-declaration] if (pud_huge(*pudp)) { ^~~~~~~~ >> arch/powerpc/xmon/xmon.c:2942:6: error: implicit declaration of function >> 'pmd_huge' [-Werror=implicit-function-declaration] if (pmd_huge(*pmdp)) { ^~~~~~~~ cc1: all warnings being treated as errors vim +/pud_huge +2929 arch/powerpc/xmon/xmon.c 2874 2875 static void show_pte(unsigned long tskv) 2876 { 2877 unsigned long addr = 0; 2878 struct task_struct *tsk = NULL; 2879 struct mm_struct *mm; 2880 pgd_t *pgdp; 2881 pud_t *pudp; 2882 pmd_t *pmdp; 2883 pte_t *ptep; 2884 2885 tsk = (struct task_struct *)tskv; 2886 if (tsk == NULL) 2887 mm = &init_mm; 2888 else 2889 mm = tsk->active_mm; 2890 2891 if (mm == NULL) 2892 mm = &init_mm; 2893 2894 if (!scanhex(&addr)) 2895 printf("need address to translate\n"); 2896 2897 if (setjmp(bus_error_jmp) != 0) { 2898 catch_memory_errors = 0; 2899 printf("*** Error dumping pte for task %p\n", tsk); 2900 return; 2901 } 2902 2903 catch_memory_errors = 1; 2904 sync(); 2905 2906 if (mm == &init_mm) 2907 pgdp = pgd_offset_k(addr); 2908 else 2909 pgdp = pgd_offset(mm, addr); 2910 2911 if (pgd_none(*pgdp)) { 2912 printf("no linux page table for address\n"); 2913 return; 2914 } 2915 2916 if (pgd_huge(*pgdp)) { 2917 format_pte(pgd_val(*pgdp)); 2918 return; 2919 } 2920 printf("G: 0x%8lx\t", pgd_val(*pgdp)); 2921 2922 pudp = pud_offset(pgdp, addr); 2923 2924 if (pud_none(*pudp)) { 2925 printf("No valid PUD\n"); 2926 return; 2927 } 2928 > 2929 if (pud_huge(*pudp)) { 2930 format_pte(pud_val(*pudp)); 2931 return; 2932 } 2933 printf("U: 0x%8lx\t", pud_val(*pudp)); 2934 2935 pmdp = pmd_offset(pudp, addr); 2936 2937 if (pmd_none(*pmdp)) { 2938 printf("No valid PMD\n"); 2939 return; 2940 } 2941 > 2942 if (pmd_huge(*pmdp)) { 2943 format_pte(pmd_val(*pmdp)); 2944 return; 2945 } 2946 printf("M: 0x%8lx\t", pmd_val(*pmdp)); 2947 2948 /* pte_offset_map is the same as pte_offset_kernel */ 2949 ptep = pte_offset_kernel(pmdp, addr); 2950 if (pte_none(*ptep)) { 2951 printf("no valid PTE\n"); 2952 return; 2953 } 2954 2955 format_pte(pte_val(*ptep)); 2956 2957 sync(); 2958 __delay(200); 2959 catch_memory_errors = 0; 2960 } 2961 static void show_tasks(void) 2962 { 2963 unsigned long tskv; 2964 struct task_struct *tsk = NULL; 2965 2966 printf(" task_struct ->thread.ksp PID PPID S P CMD\n"); 2967 2968 if (scanhex(&tskv)) 2969 tsk = (struct task_struct *)tskv; 2970 2971 if (setjmp(bus_error_jmp) != 0) { 2972 catch_memory_errors = 0; 2973 printf("*** Error dumping task %p\n", tsk); 2974 return; 2975 } 2976 2977 catch_memory_errors = 1; 2978 sync(); 2979 2980 if (tsk) 2981 show_task(tsk); 2982 else 2983 for_each_process(tsk) 2984 show_task(tsk); 2985 2986 sync(); 2987 __delay(200); 2988 catch_memory_errors = 0; 2989 } 2990 --- 0-DAY kernel test infrastructure Open Source Technology Center https://lists.01.org/pipermail/kbuild-all Intel Corporation
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