mlx5: unitialized warning

[Stephen Hemminger]

On Fri, 17 Dec 2021 19:28:26 +0000
Dmitry Kozlyuk <dkozlyuk at nvidia.com> wrote:

> > > I don't see this warning with gcc 10.3.0 (Ubuntu 10.3.0-1ubuntu1~20.04).  
> [...]
> > 
> > It maybe because I was testing with thread santizer enabled and compiler
> > was doing different optimizations.  
> 
> Reproduced with -Dc_args=-fsanitize=thread, thanks!

I was using
   -Db_sanitize=thread
which is the meson way to do it