linux-kernel - [next] sh: hugetlb.h:27:1: error: no return statement in function returning non-void [-Werror=return-type]

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Message-ID: <CA+G9fYtS5fXzbODO3+Rz7VE4VvjY_1c99Da5UhruXi16jcVGbw@mail.gmail.com>
Date:   Wed, 11 May 2022 21:26:45 +0530
From:   Naresh Kamboju <naresh.kamboju@...aro.org>
To:     Linux-Next Mailing List <linux-next@...r.kernel.org>,
        open list <linux-kernel@...r.kernel.org>,
        linux-mm <linux-mm@...ck.org>, lkft-triage@...ts.linaro.org
Cc:     Stephen Rothwell <sfr@...b.auug.org.au>,
        Andrew Morton <akpm@...ux-foundation.org>,
        Peter Xu <peterx@...hat.com>,
        Alistair Popple <apopple@...dia.com>,
        Andrea Arcangeli <aarcange@...hat.com>,
        Axel Rasmussen <axelrasmussen@...gle.com>,
        David Hildenbrand <david@...hat.com>,
        Hugh Dickins <hughd@...gle.com>,
        Jerome Glisse <jglisse@...hat.com>,
        "Kirill A . Shutemov" <kirill@...temov.name>,
        Matthew Wilcox <willy@...radead.org>,
        Mike Kravetz <mike.kravetz@...cle.com>,
        Mike Rapoport <rppt@...ux.vnet.ibm.com>,
        Nadav Amit <nadav.amit@...il.com>,
        Arnd Bergmann <arnd@...db.de>
Subject: [next] sh: hugetlb.h:27:1: error: no return statement in function
 returning non-void [-Werror=return-type]

Following build regressions were noticed on sh builds on linux next-20220511
with gcc-11, gcc-10, gcc-9 and gcc-8.

Regressions found on sh:

   - gcc-11-microdev_defconfig
   - gcc-11-shx3_defconfig
   - gcc-8-defconfig
   - gcc-9-shx3_defconfig
   - gcc-8-dreamcast_defconfig
   - gcc-10-defconfig
   - gcc-10-microdev_defconfig
   - gcc-8-shx3_defconfig
   - gcc-8-microdev_defconfig
   - gcc-11-dreamcast_defconfig
   - gcc-9-microdev_defconfig
   - gcc-10-dreamcast_defconfig
   - gcc-11-defconfig
   - gcc-10-shx3_defconfig
   - gcc-9-defconfig
   - gcc-9-dreamcast_defconfig

Reported-by: Linux Kernel Functional Testing <lkft@...aro.org>

In file included from include/linux/hugetlb.h:757,
                 from mm/filemap.c:36:
arch/sh/include/asm/hugetlb.h: In function 'huge_ptep_clear_flush':
arch/sh/include/asm/hugetlb.h:27:1: error: no return statement in
function returning non-void [-Werror=return-type]
   27 | }
      | ^
cc1: some warnings being treated as errors
make[2]: *** [scripts/Makefile.build:295: mm/filemap.o] Error 1


Build url: https://builds.tuxbuild.com/291BWxg5eELaKSwUXNLIqh5w1k3/


--
Linaro LKFT
https://lkft.linaro.org