From: Geoffrey Le Gourriérec
> This patch encompasses a few fixes carried by a previous patch that aimed to
> support bonding device stats counting.
>
> - If mlx5_os_read_dev_stat fails, it returns 1 instead of a
> negative value, causing mlx5_xstats_get to return an invalid
> number of counters. Since this error is not blocking, do not
> mess ret value with mlx5_os_read_dev_stat returned value.
>
> This allows avoiding the very annoying log:
> "n_xstats != n_xstats_names => skipping"
>
> - Invert the check for mlx5_os_read_dev_stat(), currently leading
> us to store the result if the function failed, and use a
> backup value if it succeeded, which is the opposite of what we
> actually want. Revert to the original (correct) test.
>
> - Add missing test on _mlx5_os_read_dev_counters() to prevent
> using trash stats values.
>
> Fixes: 7ed15acdcd69 ("net/mlx5: improve xstats of bonding port")
> Signed-off-by: Didier Pallard <didier.pall...@6wind.com>
> Signed-off-by: Geoffrey Le Gourriérec
> <geoffrey.le_gourrie...@6wind.com>
Acked-by: Matan Azrad <ma...@nvidia.com>
