net: Remove devif_timer from comment

since devif_timer has been removed in:
commit 035d925864
Author: zhanghongyu <zhanghongyu@xiaomi.com>
Date:   Sun May 29 21:47:28 2022 +0800

    devif: remove all devif_timer

    Signed-off-by: zhanghongyu <zhanghongyu@xiaomi.com>

Signed-off-by: Xiang Xiao <xiaoxiang@xiaomi.com>

include/nuttx/net/netdev.h

@@ -496,10 +496,8 @@ int sixlowpan_input(FAR struct radio_driver_s *ieee,
  * Polling of connections
  *
  * These functions will traverse each active network connection structure
- * and perform appropriate operations:  devif_timer() will perform TCP timer
+ * and perform appropriate operations:  devif_poll() will perform TCP
- * operations (and UDP polling operations); devif_poll() will perform TCP
+ * and UDP polling operations. devif_poll() may be called asynchronously
- * and UDP polling operations. The CAN driver MUST implement logic to
- * periodically call devif_timer(); devif_poll() may be called asynchronously
  * from the network driver can accept another outgoing packet.
  *
  * In both cases, these functions will call the provided callback function

include/nuttx/net/radiodev.h

@@ -68,11 +68,11 @@ struct radiodev_properties_s
  *     field of the IOB.
  *
  *     Outgoing frames are generated when the radio network driver calls
- *     the devif_poll(), devif_timer(), sixlowpan_input(), or
+ *     the devif_poll(), sixlowpan_input(), or ieee802154_input()
- *     ieee802154_input() interfaces.  In each case, the radio driver must
+ *     interfaces.  In each case, the radio driver must provide a working
- *     provide a working buffer in the d_buf pointer.  A special form of
+ *     buffer in the d_buf pointer.  A special form of the packet buffer
- *     the packet buffer must be used, struct sixlowpan_reassbuf_s.  This
+ *     must be used, struct sixlowpan_reassbuf_s.  This special for
- *     special for includes appended data for managing reassembly of packets.
+ *     includes appended data for managing reassembly of packets.
  *
  *   - Received frames are provided by radio network driver to the network
  *     via an IOB parameter in the sixlowpan_input() pr ieee802154_input()

net/arp/arp.h

@@ -215,7 +215,7 @@ int arp_send(in_addr_t ipaddr);
  *
  * Assumptions:
  *   This function is called from the MAC device driver indirectly through
- *   devif_poll() and devif_timer().  The network must be locked.
+ *   devif_poll().  The network must be locked.
  *
  ****************************************************************************/
 

net/arp/arp_poll.c

@@ -45,8 +45,8 @@
  *
  * Assumptions:
  *   This function is called from the MAC device driver indirectly through
- *   devif_poll() and devif_timer() and may be called from the timer
+ *   devif_poll() and may be called from the timer  interrupt/watchdog
- *   interrupt/watchdog handler level.
+ *   handler level.
  *
  ****************************************************************************/
 

net/ipforward/ipforward.h

@@ -234,7 +234,7 @@ int ipfwd_forward(FAR struct forward_s *fwd);
  *
  * Assumptions:
  *   This function is called from the MAC device driver indirectly through
- *   devif_poll() and devif_timer().
+ *   devif_poll().
  *
  ****************************************************************************/
 

net/ipforward/ipfwd_poll.c

@@ -153,7 +153,7 @@ static void ipfwd_packet_conversion(FAR struct net_driver_s *dev, int proto)
  *
  * Assumptions:
  *   This function is called from the MAC device driver indirectly through
- *   devif_poll() and devif_timer().
+ *   devif_poll().
  *
  ****************************************************************************/
 

net/sixlowpan/sixlowpan.h

@@ -106,7 +106,7 @@ ssize_t psock_6lowpan_tcp_send(FAR struct socket *psock, FAR const void *buf,
  *   3. TCP output resulting from TX or timer polling
  *
  *   Cases 2 and 3 will be handled here.  Logic in ipv6_tcp_input(),
- *   devif_poll(), and devif_timer() detect if (1) an attempt to return with
+ *   and devif_poll() detect if (1) an attempt to return with
  *   d_len > 0 and (2) that the device is an IEEE802.15.4 MAC network
  *   driver. Under those conditions, this function will be called to create
  *   the IEEE80215.4 frames.

net/sixlowpan/sixlowpan_tcpsend.c

@@ -823,7 +823,7 @@ ssize_t psock_6lowpan_tcp_send(FAR struct socket *psock, FAR const void *buf,
  *   3. TCP output resulting from TX or timer polling
  *
  *   Cases 2 and 3 will be handled here.  Logic in ipv6_tcp_input(),
- *   devif_poll(), and devif_timer() detect if (1) an attempt to return with
+ *   and devif_poll() detect if (1) an attempt to return with
  *   d_len > 0 and (2) that the device is an IEEE802.15.4 MAC network
  *   driver. Under those conditions, this function will be called to create
  *   the IEEE80215.4 frames.

wireless/ieee802154/mac802154_loopback.c

@@ -284,8 +284,8 @@ static inline void lo_netmask(FAR struct net_driver_s *dev)
  *
  * Description:
  *   Check if the network has any outgoing packets ready to send.  This is
- *   a callback from devif_poll() or devif_timer().  devif_poll() will be
+ *   a callback from devif_poll().  devif_poll() will be called only during
- *   called only during normal TX polling.
+ *   normal TX polling.
  *
  * Input Parameters:
  *   dev - Reference to the NuttX driver state structure

wireless/pktradio/pktradio_loopback.c

@@ -273,8 +273,8 @@ static inline void lo_netmask(FAR struct net_driver_s *dev)
  *
  * Description:
  *   Check if the network has any outgoing packets ready to send.  This is
- *   a callback from devif_poll() or devif_timer().  devif_poll() will be
+ *   a callback from devif_poll().  devif_poll() will be called only during
- *   called only during normal TX polling.
+ *   normal TX polling.
  *
  * Input Parameters:
  *   dev - Reference to the NuttX driver state structure