Date: Thu, 29 Jun 2023 14:32:20 +0100
From: "Sudip Mukherjee (Codethink)" <sudipm.mukherjee@gmail.com>
To: Yu Kuai <yukuai3@huawei.com>, Song Liu <song@kernel.org>
Cc: linux-raid@vger.kernel.org, linux-kernel@vger.kernel.org,
	Linus Torvalds <torvalds@linux-foundation.org>,
	regressions@lists.linux.dev
Subject: mainline build failure due to 8295efbe68c0 ("md/raid1-10: factor out
 a helper to submit normal write")
Message-ID: <ZJ2H5FWuo9oDMgPm@debian>
Precedence: bulk
MIME-Version: 1.0
Content-Type: text/plain; charset=us-ascii
Content-Disposition: inline

Hi All,

The latest mainline kernel branch fails to build x86_64, arm64 and arm allmodconfig
with clang (version 16.0.1), and the error is:

In file included from drivers/md/raid1.c:52:
drivers/md/raid1-10.c:119:25: error: casting from randomized structure pointer type 'struct block_device *' to 'struct md_rdev *'
        struct md_rdev *rdev = (struct md_rdev *)bio->bi_bdev;
                               ^

git bisect pointed to 8295efbe68c0 ("md/raid1-10: factor out a helper to submit normal write").

Reverting the commit has fixed the build failure.

I will be happy to test any patch or provide any extra log if needed.

#regzbot introduced: 8295efbe68c080047e98d9c0eb5cb933b238a8cb

-- 
Regards
Sudip