Add a introduce net_lwip_eth_stop() function and use that to stop the
network interface after each command that uses the network.
This makes the behavior the same as the legacy net code and avoids
potential issues with the network interface being left in an active
state after a command finishes.
The start/stop is reference-counted since there is at least one command
(dhcp) that calls another command (tftp) to avoid starting and stopping
the network interface multiple times in a single command.
Signed-off-by: David Lechner <dlechner@baylibre.com>
Reviewed-by: Jerome Forissier <jerome.forissier@arm.com>
David LechnerandJerome Forissier
9f7906a58c