From 569ff602ea9e4228572d1fcc715d8b4fc7ff1f8a Mon Sep 17 00:00:00 2001
From: Gregory Nutt <gnutt@nuttx.org>
Date: Mon, 24 Aug 2015 08:29:07 -0600
Subject: [PATCH] Networking:  Remove bogus references to PPP as a link layer
 protocol

---
 ChangeLog                    |  3 +++
 include/nuttx/net/net.h      |  3 +--
 net/netdev/netdev_register.c | 13 +------------
 3 files changed, 5 insertions(+), 14 deletions(-)

diff --git a/ChangeLog b/ChangeLog
index 61f179f3261..d6a532f42c3 100755
--- a/ChangeLog
+++ b/ChangeLog
@@ -10871,3 +10871,6 @@
 	* libc/libc.csv and syscalls/syscalls.csv:  Define some symbol
 	  export conditions, correct errno and add sleep and usleep. From
 	  Pavel Pisa (2015-08-23).
+	* net/ ande include/nuttx/net:  Remove references to PPP as a
+	  link layer protocol (2015-08-24).
+
diff --git a/include/nuttx/net/net.h b/include/nuttx/net/net.h
index 77c7fd807ab..9519407c8f1 100644
--- a/include/nuttx/net/net.h
+++ b/include/nuttx/net/net.h
@@ -77,7 +77,6 @@ enum net_lltype_e
 {
   NET_LL_ETHERNET = 0, /* Ethernet */
   NET_LL_SLIP,         /* Serial Line Internet Protocol (SLIP) */
-  NET_LL_PPP,          /* Point-to-Point Protocol (PPP) */
   NET_LL_TUN,          /* TUN Virtual Network Device */
 };
 
@@ -1078,7 +1077,7 @@ int net_vfcntl(int sockfd, int cmd, va_list ap);
  *
  * Parameters:
  *   dev    - The device driver structure to be registered.
- *   lltype - Link level protocol used by the driver (Ethernet, SLIP, PPP, ...
+ *   lltype - Link level protocol used by the driver (Ethernet, SLIP, TUN, ...
  *
  * Returned Value:
  *   0:Success; negated errno on failure
diff --git a/net/netdev/netdev_register.c b/net/netdev/netdev_register.c
index 524f6cb2d4b..38f77d516dd 100644
--- a/net/netdev/netdev_register.c
+++ b/net/netdev/netdev_register.c
@@ -159,7 +159,7 @@ static int find_devnum(FAR const char *devfmt)
  *
  * Parameters:
  *   dev    - The device driver structure to be registered.
- *   lltype - Link level protocol used by the driver (Ethernet, SLIP, PPP, ...
+ *   lltype - Link level protocol used by the driver (Ethernet, SLIP, TUN, ...
  *              ...
  *
  * Returned Value:
@@ -223,17 +223,6 @@ int netdev_register(FAR struct net_driver_s *dev, enum net_lltype_e lltype)
             break;
 #endif
 
-#if 0                            /* REVISIT: Not yet supported */
-          case NET_LL_PPP:       /* Point-to-Point Protocol (PPP) */
-            dev->d_llhdrlen = 0;
-            dev->d_mtu      = CONFIG_NET_PPP_MTU;
-#ifdef CONFIG_NET_TCP
-            dev->d_recvwndo = CONFIG_NET_PPP_TCP_RECVWNDO;
-#endif
-            devfmt          = NETDEV_PPP_FORMAT;
-            break;
-#endif
-
           default:
             nlldbg("ERROR: Unrecognized link type: %d\n", lltype);
             return -EINVAL;