extmod/modnetwork: Add deinit function to NIC protocol.

This is usually called on soft-reboot, a NIC can implement this to do any
necessary cleaning up (such as invalidating root pointers).

Signed-off-by: iabdalkader <i.abdalkader@gmail.com>

1 files changed, 1 insertions, 0 deletions

diff --git a/extmod/modnetwork.h b/extmod/modnetwork.h
index e3239c2a0..0a7897faa 100644
--- a/extmod/modnetwork.h
+++ b/extmod/modnetwork.h
@@ -80,6 +80,7 @@ struct _mod_network_socket_obj_t;
 typedef struct _mod_network_nic_protocol_t {
     // API for non-socket operations
     int (*gethostbyname)(mp_obj_t nic, const char *name, mp_uint_t len, uint8_t *ip_out);
+    void (*deinit)(void);
 
     // API for socket operations; return -1 on error
     int (*socket)(struct _mod_network_socket_obj_t *socket, int *_errno);