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Date:   Tue, 22 Aug 2017 22:23:13 +1000
From:   Anton Blanchard <anton@...abs.org>
To:     Arnd Bergmann <arnd@...db.de>
Cc:     "Theodore Ts'o" <tytso@....edu>,
        Andreas Dilger <adilger.kernel@...ger.ca>,
        Kees Cook <keescook@...omium.org>,
        Andrew Morton <akpm@...ux-foundation.org>,
        Jan Kara <jack@...e.cz>,
        Chandan Rajendra <chandan@...ux.vnet.ibm.com>,
        linux-ext4@...r.kernel.org,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH 1/2] ext4: fix warning about stack corruption


> > Unfortunately it doesn't appear to work, at least with ppc64le
> > clang:
> >
> > fs/ext4/mballoc.c:2303:17: error: fields must have a constant size:
> > 'variable length array in structure' extension will never be
> > supported ext4_grpblk_t counters[blocksize_bits + 2];  
> 
> My fix for this is in the ext4/dev branch in linux-next, I hope it
> still makes it into v4.13.

Thanks Arnd, I see it now.

Anton

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