Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) client-ip=2620:137:e000::1:20;
Date:   Wed, 11 May 2022 19:37:24 +0100
From:   Matthew Wilcox <willy@infradead.org>
To:     Naresh Kamboju <naresh.kamboju@linaro.org>,
        Baolin Wang <baolin.wang@linux.alibaba.com>
Cc:     Linux-Next Mailing List <linux-next@vger.kernel.org>,
        open list <linux-kernel@vger.kernel.org>,
        linux-mm <linux-mm@kvack.org>, lkft-triage@lists.linaro.org,
        Stephen Rothwell <sfr@canb.auug.org.au>,
        Andrew Morton <akpm@linux-foundation.org>,
        Peter Xu <peterx@redhat.com>,
        Alistair Popple <apopple@nvidia.com>,
        Andrea Arcangeli <aarcange@redhat.com>,
        Axel Rasmussen <axelrasmussen@google.com>,
        David Hildenbrand <david@redhat.com>,
        Hugh Dickins <hughd@google.com>,
        Jerome Glisse <jglisse@redhat.com>,
        "Kirill A . Shutemov" <kirill@shutemov.name>,
        Mike Kravetz <mike.kravetz@oracle.com>,
        Mike Rapoport <rppt@linux.vnet.ibm.com>,
        Nadav Amit <nadav.amit@gmail.com>,
        Arnd Bergmann <arnd@arndb.de>
Subject: Re: [next] sh: hugetlb.h:27:1: error: no return statement in
 function returning non-void [-Werror=return-type]
Message-ID: <YnwCZMldIQiQUrKt@casper.infradead.org>
References: <CA+G9fYtS5fXzbODO3+Rz7VE4VvjY_1c99Da5UhruXi16jcVGbw@mail.gmail.com>
MIME-Version: 1.0
Content-Type: text/plain; charset=us-ascii
Content-Disposition: inline
In-Reply-To: <CA+G9fYtS5fXzbODO3+Rz7VE4VvjY_1c99Da5UhruXi16jcVGbw@mail.gmail.com>
Precedence: bulk

On Wed, May 11, 2022 at 09:26:45PM +0530, Naresh Kamboju wrote:
> 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

It's easy enough to figure out whose patch this was.

$ git log -p next-20220511 arch/sh/include/asm/hugetlb.h

commit 083af99303b9
Author: Baolin Wang <baolin.wang@linux.alibaba.com>
Date:   Tue May 10 17:47:33 2022 -0700

    mm: change huge_ptep_clear_flush() to return the original pte

You don't have to spray everybody who's ever touched the MM with email.