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Message-Id: <20180312.111432.849792523664957837.davem@davemloft.net>
Date: Mon, 12 Mar 2018 11:14:32 -0400 (EDT)
From: David Miller <davem@...emloft.net>
To: s.mesoraca16@...il.com
Cc: linux-kernel@...r.kernel.org, kernel-hardening@...ts.openwall.com,
netdev@...r.kernel.org, paulmck@...ux.vnet.ibm.com, rientjes@...gle.com,
elena.reshetova@...el.com, ishkamiel@...il.com, keescook@...omium.org
Subject: Re: [PATCH] net: llc: drop VLA in llc_sap_mcast()
From: Salvatore Mesoraca <s.mesoraca16@...il.com>
Date: Sun, 11 Mar 2018 22:12:04 +0100
> Avoid a VLA[1] by using a real constant expression instead of a variable.
> The compiler should be able to optimize the original code and avoid using
> an actual VLA. Anyway this change is useful because it will avoid a false
> positive with -Wvla, it might also help the compiler generating better
> code.
>
> [1] https://lkml.org/lkml/2018/3/7/621
>
> Signed-off-by: Salvatore Mesoraca <s.mesoraca16@...il.com>
Applied.
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