Add a helper to determine whether a given netdevice has a given flag.

Rewrite ip_link_is_up() in terms of the new helper.

Signed-off-by: Petr Machata petrm@nvidia.com ---

Notes: CC: Shuah Khan shuah@kernel.org CC: linux-kselftest@vger.kernel.org

tools/testing/selftests/net/lib.sh | 12 +++++++++--- 1 file changed, 9 insertions(+), 3 deletions(-)

diff --git a/tools/testing/selftests/net/lib.sh b/tools/testing/selftests/net/lib.sh index 006fdadcc4b9..ff0dbe23e8e0 100644 --- a/tools/testing/selftests/net/lib.sh +++ b/tools/testing/selftests/net/lib.sh @@ -547,13 +547,19 @@ ip_link_set_addr() defer ip link set dev "$name" address "$old_addr" }

-ip_link_is_up() +ip_link_has_flag() { local name=$1; shift + local flag=$1; shift

local state=$(ip -j link show "$name" | - jq -r '(.[].flags[] | select(. == "UP")) // "DOWN"') - [[ $state == "UP" ]] + jq --arg flag "$flag" 'any(.[].flags.[]; . == $flag)') + [[ $state == true ]] +} + +ip_link_is_up() +{ + ip_link_has_flag "$1" UP }

ip_link_set_up()