Hi,
On 5/8/2022 8:01 PM, kernel test robot wrote:
Hi Baolin,
I love your patch! Yet something to improve:
[auto build test ERROR on akpm-mm/mm-everything]
[also build test ERROR on next-20220506]
[cannot apply to hnaz-mm/master arm64/for-next/core linus/master v5.18-rc5]
[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/intel-lab-lkp/linux/commits/Baolin-Wang/Fix-CONT-PTE-PMD-size-hugetlb-issue-when-unmapping-or-migrating/20220508-174036
base: https://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm.git mm-everything
config: x86_64-randconfig-a013 (https://download.01.org/0day-ci/archive/20220508/202205081910.mStoC5rj-lkp@xxxxxxxxx/config)
compiler: gcc-11 (Debian 11.2.0-20) 11.2.0
reproduce (this is a W=1 build):
# https://github.com/intel-lab-lkp/linux/commit/907981b27213707fdb2f8a24c107d6752a09a773
git remote add linux-review https://github.com/intel-lab-lkp/linux
git fetch --no-tags linux-review Baolin-Wang/Fix-CONT-PTE-PMD-size-hugetlb-issue-when-unmapping-or-migrating/20220508-174036
git checkout 907981b27213707fdb2f8a24c107d6752a09a773
# save the config file
mkdir build_dir && cp config build_dir/.config
make W=1 O=build_dir ARCH=x86_64 SHELL=/bin/bash
If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@xxxxxxxxx>
All errors (new ones prefixed by >>):
mm/rmap.c: In function 'try_to_migrate_one':
mm/rmap.c:1931:34: error: implicit declaration of function 'huge_ptep_clear_flush'; did you mean 'ptep_clear_flush'? [-Werror=implicit-function-declaration]
1931 | pteval = huge_ptep_clear_flush(vma, address, pvmw.pte);
| ^~~~~~~~~~~~~~~~~~~~~
| ptep_clear_flush
mm/rmap.c:1931:34: error: incompatible types when assigning to type 'pte_t' from type 'int'
mm/rmap.c:2023:41: error: implicit declaration of function 'set_huge_pte_at'; did you mean 'set_huge_swap_pte_at'? [-Werror=implicit-function-declaration]
2023 | set_huge_pte_at(mm, address, pvmw.pte, pteval);
| ^~~~~~~~~~~~~~~
| set_huge_swap_pte_at
cc1: some warnings being treated as errors
Thanks for reporting. I think I should add some dummy functions in
hugetlb.h file if the CONFIG_HUGETLB_PAGE is not selected. I can pass
the building with below changes and your config file.
diff --git a/include/linux/hugetlb.h b/include/linux/hugetlb.h
index 306d6ef..9f71043 100644
--- a/include/linux/hugetlb.h
+++ b/include/linux/hugetlb.h
@@ -1093,6 +1093,17 @@ static inline void set_huge_swap_pte_at(struct
mm_struct *mm, unsigned long addr
pte_t *ptep, pte_t pte,
unsigned long sz)
{
}
+
+static inline pte_t huge_ptep_clear_flush(struct vm_area_struct *vma,
+ unsigned long addr, pte_t *ptep)
+{
+ return ptep_get(ptep);
+}
+
+static inline void set_huge_pte_at(struct mm_struct *mm, unsigned long
addr,
+ pte_t *ptep, pte_t pte)
+{
+}
#endif /* CONFIG_HUGETLB_PAGE */
