Re: [PATCH] Btrfs: drop a VLA in btrfs_check_super_csum()

[David Sterba]

On Tue, Mar 13, 2018 at 08:50:22PM +0100, Salvatore Mesoraca wrote:
> 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>

We already have a patch for that from a few days ago, but thanks anyway.

https://patchwork.kernel.org/patch/10277901/