On 27/10/2019 07:59, kbuild test robot wrote: > Hi Steven, > > Thank you for the patch! Yet something to improve: > > [auto build test ERROR on linus/master] > [also build test ERROR on v5.4-rc4 next-20191025] > [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/Steven-Price/Generic-page-walk-and-ptdump/20191027-140322 > base: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git 5a1e843c66fa6438f389045981c37e4073917641 > config: arc-defconfig (attached as .config) > compiler: arc-elf-gcc (GCC) 7.4.0 > 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=7.4.0 make.cross ARCH=arc First off, these instructions don't work! make.cross attempts to download a sparc toolchain. However, the issue is actually quite easy to see if you look more closely at patch 2: > +#define pmd_leaf(x) (pmd_val(pmd) & _PAGE_HW_SZ) That 'pmd' variable should really have been 'x'! Below diff should fix this up - I'll repost with this squashed in shortly: ----8<---- diff --git a/arch/arc/include/asm/pgtable.h b/arch/arc/include/asm/pgtable.h index 5ec798e50836..b4a0cf27ac1c 100644 --- a/arch/arc/include/asm/pgtable.h +++ b/arch/arc/include/asm/pgtable.h @@ -274,7 +274,7 @@ static inline void pmd_set(pmd_t *pmdp, pte_t *ptep) #define pmd_none(x) (!pmd_val(x)) #define pmd_bad(x) ((pmd_val(x) & ~PAGE_MASK)) #define pmd_present(x) (pmd_val(x)) -#define pmd_leaf(x) (pmd_val(pmd) & _PAGE_HW_SZ) +#define pmd_leaf(x) (pmd_val(x) & _PAGE_HW_SZ) #define pmd_clear(xp) do { pmd_val(*(xp)) = 0; } while (0) #define pte_page(pte) pfn_to_page(pte_pfn(pte))
