Re: [PATCH] net: llc: drop VLA in llc_sap_mcast()

From: David Miller
Date: Mon Mar 12 2018 - 11:14:38 EST


From: Salvatore Mesoraca <s.mesoraca16@xxxxxxxxx>
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@xxxxxxxxx>

Applied.