Re: [PATCH net-next 4/5] selftests: forwarding: extend ethtool_std_stats_get with pause statistics

[Petr Machata <petrm@nvidia.com>]

Ioana Ciornei <ioana.ciornei@nxp.com> writes:

> Even though pause frame statistics are not exported through the same
> ethtool command, there is no point in adding another helper just for
> them. Extent the ethtool_std_stats_get() function so that we are able to
> interrogate using the same helper all the standard statistics.
>
> Signed-off-by: Ioana Ciornei <ioana.ciornei@nxp.com>
> ---
>  tools/testing/selftests/net/forwarding/lib.sh | 8 ++++++--
>  1 file changed, 6 insertions(+), 2 deletions(-)
>
> diff --git a/tools/testing/selftests/net/forwarding/lib.sh b/tools/testing/selftests/net/forwarding/lib.sh
> index a9034f0bb58b..efd236ae1c28 100644
> --- a/tools/testing/selftests/net/forwarding/lib.sh
> +++ b/tools/testing/selftests/net/forwarding/lib.sh
> @@ -831,8 +831,12 @@ ethtool_std_stats_get()
>  	local name=$1; shift
>  	local src=$1; shift
>  
> -	ethtool --json -S $dev --groups $grp -- --src $src | \
> -		jq '.[]."'"$grp"'"."'$name'"'
> +	if [[ "$grp" == "pause" ]]; then
> +		ethtool -I --json -a $dev | jq '.[].statistics.'$name

I think name needs to be quoted here? In fact, unless the pause group is
highly unlikely to ever get a key that contains a dash, it should either
be quoted in the horrible way the else branch does it, or do this much
more readable thing instead:

        jq --arg name "$name" '.[].statistics[$name]'

> +	else
> +		ethtool --json -S $dev --groups $grp -- --src $src | \

Since you are touching this line -- can you fix the missing quoting,
please?

> +			jq '.[]."'"$grp"'"."'$name'"'
> +	fi
>  }
>  
>  qdisc_stats_get()