linux-kernel - Re: [PATCH] reiserfs: Force type conversion in xattr

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Message-ID: <20190423145521.GB3609@bharath12345-Inspiron-5559>
Date:   Tue, 23 Apr 2019 20:25:21 +0530
From:   Bharath Vedartham <linux.bhar@...il.com>
To:     Andrew Morton <akpm@...ux-foundation.org>
Cc:     Al Viro <viro@...iv.linux.org.uk>, jannh@...gle.com,
        reiserfs-devel@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] reiserfs: Force type conversion in xattr_hash

On Mon, Apr 22, 2019 at 12:27:05PM -0700, Andrew Morton wrote:
> On Sun, 21 Apr 2019 18:02:35 +0100 Al Viro <viro@...iv.linux.org.uk> wrote:
> 
> > IOW, what sparse has caught here is a genuine endianness bug; images
> > created on little-endian host and mounted on big-endian (or vice
> > versa) will see csum mismatches when trying to fetch xattrs.
> 
> OK, thanks.  I'll drop the patch - we shouldn't hide that reminder of a
> bug.
> 
> Perhaps someone could prepare a patch which adds a comment explaining
> these issues, so someone else doesn't try to "fix" the sparse warning.
>

Hi Andrew,

I will send a patch CCing Al to add a comment explaining these issues.

Thanks
Bharath