Hi Alexandre, Thank you for the patch! Perhaps something to improve:
[auto build test WARNING on next-20210226] [cannot apply to linus/master v5.11 v5.11-rc7 v5.11-rc6 v5.11] [If your patch is applied to the wrong git tree, kindly drop us a note. And when submitting patch, we suggest to use '--base' as documented in https://git-scm.com/docs/git-format-patch] url: https://github.com/0day-ci/linux/commits/Alexandre-Ghiti/riscv-Improve-KASAN_VMALLOC-support/20210226-210227 base: d01f2f7e35573049673b71e18be7abfe3f80323f config: riscv-allyesconfig (attached as .config) compiler: riscv64-linux-gcc (GCC) 9.3.0 reproduce (this is a W=1 build): wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross chmod +x ~/bin/make.cross # https://github.com/0day-ci/linux/commit/0b62a4a56a372fe72012b7a056562e1e04d7030f git remote add linux-review https://github.com/0day-ci/linux git fetch --no-tags linux-review Alexandre-Ghiti/riscv-Improve-KASAN_VMALLOC-support/20210226-210227 git checkout 0b62a4a56a372fe72012b7a056562e1e04d7030f # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross ARCH=riscv If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <l...@intel.com> All warnings (new ones prefixed by >>): >> arch/riscv/mm/kasan_init.c:146:13: warning: no previous prototype for >> 'kasan_shallow_populate_pgd' [-Wmissing-prototypes] 146 | void __init kasan_shallow_populate_pgd(unsigned long vaddr, unsigned long end) | ^~~~~~~~~~~~~~~~~~~~~~~~~~ arch/riscv/mm/kasan_init.c:161:13: warning: no previous prototype for 'kasan_shallow_populate' [-Wmissing-prototypes] 161 | void __init kasan_shallow_populate(void *start, void *end) | ^~~~~~~~~~~~~~~~~~~~~~ vim +/kasan_shallow_populate_pgd +146 arch/riscv/mm/kasan_init.c 145 > 146 void __init kasan_shallow_populate_pgd(unsigned long vaddr, unsigned > long end) 147 { 148 unsigned long next; 149 void *p; 150 pgd_t *pgd_k = pgd_offset_k(vaddr); 151 152 do { 153 next = pgd_addr_end(vaddr, end); 154 if (pgd_page_vaddr(*pgd_k) == (unsigned long)lm_alias(kasan_early_shadow_pmd)) { 155 p = memblock_alloc(PAGE_SIZE, PAGE_SIZE); 156 set_pgd(pgd_k, pfn_pgd(PFN_DOWN(__pa(p)), PAGE_TABLE)); 157 } 158 } while (pgd_k++, vaddr = next, vaddr != end); 159 } 160 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-...@lists.01.org
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