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Subject: Re: [PATCH] x86/xen: Remove use of VLAs
To:     Laura Abbott <labbott@redhat.com>,
        Boris Ostrovsky <boris.ostrovsky@oracle.com>
Cc:     Thomas Gleixner <tglx@linutronix.de>,
        Ingo Molnar <mingo@redhat.com>,
        "H. Peter Anvin" <hpa@zytor.com>, x86@kernel.org,
        xen-devel@lists.xenproject.org, linux-kernel@vger.kernel.org,
        kernel-hardening@lists.openwall.com
References: <20180413221146.28476-1-labbott@redhat.com>
From:   Juergen Gross <jgross@suse.com>
Message-ID: <49e13c53-718f-879c-fc0d-b0f5dd7ea23d@suse.com>
Date:   Mon, 16 Apr 2018 10:11:54 +0200
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On 14/04/18 00:11, Laura Abbott wrote:
> There's an ongoing effort to remove VLAs[1] from the kernel to eventually
> turn on -Wvla. The few VLAs in use have an upper bound based on a size
> of 64K. This doesn't produce an excessively large stack so just switch
> the upper bound.
> 
> [1] https://lkml.org/lkml/2018/3/7/621
> 
> Signed-off-by: Laura Abbott <labbott@redhat.com>

Reviewed-by: Juergen Gross <jgross@suse.com>


Juergen