net/: Remove references to CONFIG_NET_MULTIBUFFER

net/Kconfig

@@ -40,17 +40,6 @@ config NET_PROMISCUOUS
 
 menu "Driver buffer configuration"
 
-config NET_MULTIBUFFER
-	bool "Use multiple device-side I/O buffers"
-	default n
-	---help---
-		Traditionally, the uIP-based stack has used a single buffer for all
-		incoming and outgoing traffic.  If this configuration is selected,
-		then the driver can manage multiple I/O buffers and can, for
-		example, be filling one input buffer while sending another output
-		buffer.  Or, as another example, the driver may support queuing of
-		concurrent input/ouput and output transfers for better performance.
-
 config NET_ETH_MTU
 	int "Ethernet packet buffer size (MTU)"
 	default 1294 if NET_IPv6
@@ -171,8 +160,7 @@ config NET_SLIP
 	select NET_MULTILINK if NET_ETHERNET || NET_LOOPBACK || NET_TUN
 	---help---
 		Enables building of the SLIP driver. SLIP requires
-		at least one IP protocol selected and the following additional
+		at least one IP protocol selected and CONFIG_NET_NOINTS.
-		network settings: NET_NOINTS and NET_MULTIBUFFER.
 
 		SLIP supports point-to-point IP communications over a serial port.
 		The default data link layer for network layer is Ethernet. If
@@ -217,7 +205,6 @@ config NET_TUN
 	default n
 	select NETDEV_MULTINIC if NET_ETHERNET || NET_LOOPBACK || NET_SLIP
 	select NET_MULTILINK if NET_ETHERNET || NET_LOOPBACK || NET_SLIP
-	select NET_MULTIBUFFER
 	select ARCH_HAVE_NETDEV_STATISTICS
 
 if NET_TUN

net/arp/arp_arpin.c

@@ -76,16 +76,16 @@
  *   that we previously sent out, the ARP cache will be filled in with
  *   the values from the ARP reply.  If the incoming ARP packet is an ARP
  *   request for our IP address, an ARP reply packet is created and put
- *   into the d_buf[] buffer.
+ *   into the d_buf buffer.
  *
  *   On entry, this function expects that an ARP packet with a prepended
- *   Ethernet header is present in the d_buf[] buffer and that the length of
+ *   Ethernet header is present in the d_buf buffer and that the length of
  *   the packet is set in the d_len field.
  *
  *   When the function returns, the value of the field d_len indicates whether
  *   the device driver should send out the ARP reply packet or not. If d_len
  *   is zero, no packet should be sent; If d_len is non-zero, it contains the
- *   length of the outbound packet that is present in the d_buf[] buffer.
+ *   length of the outbound packet that is present in the d_buf buffer.
  *
  ****************************************************************************/
 

net/arp/arp_out.c

@@ -123,13 +123,13 @@ static const uint8_t g_multicast_ethaddr[3] =
  *   beginning of the packet and the function returns.
  *
  *   If no ARP cache entry is found for the destination IP address, the
- *   packet in the d_buf[] is replaced by an ARP request packet for the
+ *   packet in the d_buf is replaced by an ARP request packet for the
  *   IP address. The IP packet is dropped and it is assumed that the
  *   higher level protocols (e.g., TCP) eventually will retransmit the
  *   dropped packet.
  *
  *   Upon return in either the case, a packet to be sent is present in the
- *   d_buf[] buffer and the d_len field holds the length of the Ethernet
+ *   d_buf buffer and the d_len field holds the length of the Ethernet
  *   frame that should be transmitted.
  *
  ****************************************************************************/

net/neighbor/neighbor_out.c

@@ -120,13 +120,13 @@ static const uint8_t g_multicast_ethaddr[3] =
  *   beginning of the packet and the function returns.
  *
  *   If no Neighbor Table entry is found for the destination IPv6 address,
- *   the packet in the d_buf[] is replaced by an ICMPv6 Neighbor Solicit
+ *   the packet in the d_buf is replaced by an ICMPv6 Neighbor Solicit
  *   request packet for the IPv6 address. The IPv6 packet is dropped and 
  *   it is assumed that the higher level protocols (e.g., TCP) eventually
  *   will retransmit the dropped packet.
  *
  *   Upon return in either the case, a packet to be sent is present in the
- *   d_buf[] buffer and the d_len field holds the length of the Ethernet
+ *   d_buf buffer and the d_len field holds the length of the Ethernet
  *   frame that should be transmitted.
  *
  ****************************************************************************/