qubes-installer-qubes-os/anaconda/dracut/find-net-intfs-by-driver

#!/bin/bash
#
# Find all devices which depend on input kernel driver.
#
# Author: Jiri Konecny
#

driver="$1"

# List all interfaces in system
for i in /sys/class/net/*/device/modalias; do
    if [ -z $i ]; then
        exit 0
    fi
    # Get kernel mods on which the interface is dependent
    d=$(modprobe -R $(cat "$i"))

    # Test if this is the mod we are looking for. If so return name of the interface.
    if [[ " $d " == *\ $driver\ * ]]; then
        intf=${i%%/device/modalias}
        echo "${intf##*/}"
    fi
done