Following build failures noticed on arm64 on Linux mainline tree. Which was detected and discussed at this email thread. https://lore.kernel.org/all/20220512193855.4f6ce32f@xxxxxxxxxxxxxxxx/T/ Reported-by: Linux Kernel Functional Testing <lkft@xxxxxxxxxx> Build errors: arch/arm64/mm/hugetlbpage.c: In function 'huge_ptep_clear_flush': arch/arm64/mm/hugetlbpage.c:515:16: error: implicit declaration of function 'get_clear_flush'; did you mean 'ptep_clear_flush'? [-Werror=implicit-function-declaration] 515 | return get_clear_flush(vma->vm_mm, addr, ptep, pgsize, ncontig); | ^~~~~~~~~~~~~~~ | ptep_clear_flush arch/arm64/mm/hugetlbpage.c:515:16: error: incompatible types when returning type 'int' but 'pte_t' was expected 515 | return get_clear_flush(vma->vm_mm, addr, ptep, pgsize, ncontig); | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ arch/arm64/mm/hugetlbpage.c:516:1: error: control reaches end of non-void function [-Werror=return-type] 516 | } | ^ cc1: some warnings being treated as errors metadata: git_repo: https://gitlab.com/Linaro/lkft/mirrors/torvalds/linux-mainline git_describe: v5.18-9901-g7f50d4dfe816 git_sha: 7f50d4dfe816dd916a7cbf39039674825c2b388b git_short_log: 7f50d4dfe816 (\Merge tag 'for-linus' of https://github.com/openrisc/linux\) target_arch: arm64 toolchain: gcc-11 -- Linaro LKFT https://lkft.linaro.org
