net: delete all instances of special processing for token ring

We are going to delete the Token ring support.  This removes any
special processing in the core networking for token ring, (aside
from net/tr.c itself), leaving the drivers and remaining tokenring
support present but inert.

The mass removal of the drivers and net/tr.c will be in a separate
commit, so that the history of these files that we still care
about won't have the giant deletion tied into their history.

Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>

13 files changed, 12 insertions, 68 deletions

diff --git a/net/802/p8022.c b/net/802/p8022.c
index 7f353c4f437a..0bda8de7df51 100644
--- a/net/802/p8022.c
+++ b/net/802/p8022.c
@@ -1,6 +1,5 @@
 /*
- *      NET3:   Support for 802.2 demultiplexing off Ethernet (Token ring
- *              is kept separate see p8022tr.c)
+ *      NET3:   Support for 802.2 demultiplexing off Ethernet
  *              This program is free software; you can redistribute it and/or
  *              modify it under the terms of the GNU General Public License
  *              as published by the Free Software Foundation; either version
diff --git a/net/802/tr.c b/net/802/tr.c
index 30a352ed09b1..175243b0d6d8 100644
--- a/net/802/tr.c
+++ b/net/802/tr.c
@@ -604,7 +604,6 @@ static void tr_setup(struct net_device *dev)
 
         dev->header_ops = &tr_header_ops;
 
-        dev->type               = ARPHRD_IEEE802_TR;
         dev->hard_header_len    = TR_HLEN;
         dev->mtu                = 2000;
         dev->addr_len           = TR_ALEN;
diff --git a/net/core/dev.c b/net/core/dev.c
index 3dd853998d38..66cae6e975d9 100644
--- a/net/core/dev.c
+++ b/net/core/dev.c
@@ -300,10 +300,9 @@ static const unsigned short netdev_lock_type[] =
          ARPHRD_BIF, ARPHRD_SIT, ARPHRD_IPDDP, ARPHRD_IPGRE,
          ARPHRD_PIMREG, ARPHRD_HIPPI, ARPHRD_ASH, ARPHRD_ECONET,
          ARPHRD_IRDA, ARPHRD_FCPP, ARPHRD_FCAL, ARPHRD_FCPL,
-         ARPHRD_FCFABRIC, ARPHRD_IEEE802_TR, ARPHRD_IEEE80211,
-         ARPHRD_IEEE80211_PRISM, ARPHRD_IEEE80211_RADIOTAP, ARPHRD_PHONET,
-         ARPHRD_PHONET_PIPE, ARPHRD_IEEE802154,
-         ARPHRD_VOID, ARPHRD_NONE};
+         ARPHRD_FCFABRIC, ARPHRD_IEEE80211, ARPHRD_IEEE80211_PRISM,
+         ARPHRD_IEEE80211_RADIOTAP, ARPHRD_PHONET, ARPHRD_PHONET_PIPE,
+         ARPHRD_IEEE802154, ARPHRD_VOID, ARPHRD_NONE};
 
 static const char *const netdev_lock_name[] =
         {"_xmit_NETROM", "_xmit_ETHER", "_xmit_EETHER", "_xmit_AX25",
@@ -318,10 +317,9 @@ static const char *const netdev_lock_name[] =
          "_xmit_BIF", "_xmit_SIT", "_xmit_IPDDP", "_xmit_IPGRE",
          "_xmit_PIMREG", "_xmit_HIPPI", "_xmit_ASH", "_xmit_ECONET",
          "_xmit_IRDA", "_xmit_FCPP", "_xmit_FCAL", "_xmit_FCPL",
-         "_xmit_FCFABRIC", "_xmit_IEEE802_TR", "_xmit_IEEE80211",
-         "_xmit_IEEE80211_PRISM", "_xmit_IEEE80211_RADIOTAP", "_xmit_PHONET",
-         "_xmit_PHONET_PIPE", "_xmit_IEEE802154",
-         "_xmit_VOID", "_xmit_NONE"};
+         "_xmit_FCFABRIC", "_xmit_IEEE80211", "_xmit_IEEE80211_PRISM",
+         "_xmit_IEEE80211_RADIOTAP", "_xmit_PHONET", "_xmit_PHONET_PIPE",
+         "_xmit_IEEE802154", "_xmit_VOID", "_xmit_NONE"};
 
 static struct lock_class_key netdev_xmit_lock_key[ARRAY_SIZE(netdev_lock_type)];
 static struct lock_class_key netdev_addr_lock_key[ARRAY_SIZE(netdev_lock_type)];
diff --git a/net/ipv4/Kconfig b/net/ipv4/Kconfig
index 2c8febd3ebda..20f1cb5c8aba 100644
--- a/net/ipv4/Kconfig
+++ b/net/ipv4/Kconfig
@@ -262,8 +262,8 @@ config ARPD
         bool "IP: ARP daemon support"
         ---help---
           The kernel maintains an internal cache which maps IP addresses to
-          hardware addresses on the local network, so that Ethernet/Token Ring/
-          etc. frames are sent to the proper address on the physical networking
+          hardware addresses on the local network, so that Ethernet
+          frames are sent to the proper address on the physical networking
           layer. Normally, kernel uses the ARP protocol to resolve these
           mappings.
 
diff --git a/net/ipv4/arp.c b/net/ipv4/arp.c
index 373b56bf8f49..5097571cc4b0 100644
--- a/net/ipv4/arp.c
+++ b/net/ipv4/arp.c
@@ -89,7 +89,6 @@
 #include <linux/etherdevice.h>
 #include <linux/fddidevice.h>
 #include <linux/if_arp.h>
-#include <linux/trdevice.h>
 #include <linux/skbuff.h>
 #include <linux/proc_fs.h>
 #include <linux/seq_file.h>
@@ -193,9 +192,6 @@ int arp_mc_map(__be32 addr, u8 *haddr, struct net_device *dev, int dir)
         case ARPHRD_IEEE802:
                 ip_eth_mc_map(addr, haddr);
                 return 0;
-        case ARPHRD_IEEE802_TR:
-                ip_tr_mc_map(addr, haddr);
-                return 0;
         case ARPHRD_INFINIBAND:
                 ip_ib_mc_map(addr, dev->broadcast, haddr);
                 return 0;
@@ -648,12 +644,6 @@ struct sk_buff *arp_create(int type, int ptype, __be32 dest_ip,
                 arp->ar_pro = htons(ETH_P_IP);
                 break;
 #endif
-#if IS_ENABLED(CONFIG_TR)
-        case ARPHRD_IEEE802_TR:
-                arp->ar_hrd = htons(ARPHRD_IEEE802);
-                arp->ar_pro = htons(ETH_P_IP);
-                break;
-#endif
         }
 
         arp->ar_hln = dev->addr_len;
@@ -751,11 +741,10 @@ static int arp_process(struct sk_buff *skb)
                         goto out;
                 break;
         case ARPHRD_ETHER:
-        case ARPHRD_IEEE802_TR:
         case ARPHRD_FDDI:
         case ARPHRD_IEEE802:
                 /*
-                 * ETHERNET, Token Ring and Fibre Channel (which are IEEE 802
+                 * ETHERNET, and Fibre Channel (which are IEEE 802
                  * devices, according to RFC 2625) devices will accept ARP
                  * hardware types of either 1 (Ethernet) or 6 (IEEE 802.2).
                  * This is the case also of FDDI, where the RFC 1390 says that
diff --git a/net/ipv4/ipconfig.c b/net/ipv4/ipconfig.c
index 24a3df9890e1..430015010e57 100644
--- a/net/ipv4/ipconfig.c
+++ b/net/ipv4/ipconfig.c
@@ -808,8 +808,6 @@ static void __init ic_bootp_send_if(struct ic_device *d, unsigned long jiffies_d
         b->op = BOOTP_REQUEST;
         if (dev->type < 256) /* check for false types */
                 b->htype = dev->type;
-        else if (dev->type == ARPHRD_IEEE802_TR) /* fix for token ring */
-                b->htype = ARPHRD_IEEE802;
         else if (dev->type == ARPHRD_FDDI)
                 b->htype = ARPHRD_ETHER;
         else {
diff --git a/net/ipv6/addrconf.c b/net/ipv6/addrconf.c
index 4d1d51a0bd26..f6b5b8ac3cf2 100644
--- a/net/ipv6/addrconf.c
+++ b/net/ipv6/addrconf.c
@@ -1575,7 +1575,6 @@ static int ipv6_generate_eui64(u8 *eui, struct net_device *dev)
         switch (dev->type) {
         case ARPHRD_ETHER:
         case ARPHRD_FDDI:
-        case ARPHRD_IEEE802_TR:
                 return addrconf_ifid_eui48(eui, dev);
         case ARPHRD_ARCNET:
                 return addrconf_ifid_arcnet(eui, dev);
@@ -2444,7 +2443,6 @@ static void addrconf_dev_config(struct net_device *dev)
 
         if ((dev->type != ARPHRD_ETHER) &&
             (dev->type != ARPHRD_FDDI) &&
-            (dev->type != ARPHRD_IEEE802_TR) &&
             (dev->type != ARPHRD_ARCNET) &&
             (dev->type != ARPHRD_INFINIBAND) &&
             (dev->type != ARPHRD_IEEE802154)) {
diff --git a/net/ipv6/ndisc.c b/net/ipv6/ndisc.c
index 35615c6358b8..56963f15bdc5 100644
--- a/net/ipv6/ndisc.c
+++ b/net/ipv6/ndisc.c
@@ -327,9 +327,6 @@ int ndisc_mc_map(const struct in6_addr *addr, char *buf, struct net_device *dev,
         case ARPHRD_FDDI:
                 ipv6_eth_mc_map(addr, buf);
                 return 0;
-        case ARPHRD_IEEE802_TR:
-                ipv6_tr_mc_map(addr,buf);
-                return 0;
         case ARPHRD_ARCNET:
                 ipv6_arcnet_mc_map(addr, buf);
                 return 0;
@@ -795,20 +792,6 @@ static void ndisc_recv_ns(struct sk_buff *skb)
 
                 if (ifp->flags & (IFA_F_TENTATIVE|IFA_F_OPTIMISTIC)) {
                         if (dad) {
-                                if (dev->type == ARPHRD_IEEE802_TR) {
-                                        const unsigned char *sadr;
-                                        sadr = skb_mac_header(skb);
-                                        if (((sadr[8] ^ dev->dev_addr[0]) & 0x7f) == 0 &&
-                                            sadr[9] == dev->dev_addr[1] &&
-                                            sadr[10] == dev->dev_addr[2] &&
-                                            sadr[11] == dev->dev_addr[3] &&
-                                            sadr[12] == dev->dev_addr[4] &&
-                                            sadr[13] == dev->dev_addr[5]) {
-                                                /* looped-back to us */
-                                                goto out;
-                                        }
-                                }
-
                                 /*
                                  * We are colliding with another node
                                  * who is doing DAD
diff --git a/net/ipx/af_ipx.c b/net/ipx/af_ipx.c
index 9680226640ef..824d4a3338ae 100644
--- a/net/ipx/af_ipx.c
+++ b/net/ipx/af_ipx.c
@@ -983,10 +983,6 @@ static int ipxitf_create(struct ipx_interface_definition *idef)
                 goto out;
 
         switch (idef->ipx_dlink_type) {
-        case IPX_FRAME_TR_8022:
-                printk(KERN_WARNING "IPX frame type 802.2TR is "
-                        "obsolete Use 802.2 instead.\n");
-                /* fall through */
         case IPX_FRAME_8022:
                 dlink_type      = htons(ETH_P_802_2);
                 datalink        = p8022_datalink;
@@ -996,10 +992,7 @@ static int ipxitf_create(struct ipx_interface_definition *idef)
                         dlink_type      = htons(ETH_P_IPX);
                         datalink        = pEII_datalink;
                         break;
-                } else
-                        printk(KERN_WARNING "IPX frame type EtherII over "
-                                        "token-ring is obsolete. Use SNAP "
-                                        "instead.\n");
+                }
                 /* fall through */
         case IPX_FRAME_SNAP:
                 dlink_type      = htons(ETH_P_SNAP);
@@ -1275,7 +1268,6 @@ const char *ipx_frame_name(__be16 frame)
         case ETH_P_802_2:       rc = "802.2";   break;
         case ETH_P_SNAP:        rc = "SNAP";    break;
         case ETH_P_802_3:       rc = "802.3";   break;
-        case ETH_P_TR_802_2:    rc = "802.2TR"; break;
         }
 
         return rc;
diff --git a/net/llc/af_llc.c b/net/llc/af_llc.c
index 78424f41cf36..e9440753e16b 100644
--- a/net/llc/af_llc.c
+++ b/net/llc/af_llc.c
@@ -71,8 +71,7 @@ static inline u16 llc_ui_next_link_no(int sap)
  */
 static inline __be16 llc_proto_type(u16 arphrd)
 {
-        return arphrd == ARPHRD_IEEE802_TR ?
-                         htons(ETH_P_TR_802_2) : htons(ETH_P_802_2);
+        return htons(ETH_P_802_2);
 }
 
 /**
diff --git a/net/llc/llc_output.c b/net/llc/llc_output.c
index b658cba89fdd..2dae8a5df23f 100644
--- a/net/llc/llc_output.c
+++ b/net/llc/llc_output.c
@@ -14,9 +14,7 @@
  */
 
 #include <linux/if_arp.h>
-#include <linux/if_tr.h>
 #include <linux/netdevice.h>
-#include <linux/trdevice.h>
 #include <linux/skbuff.h>
 #include <linux/export.h>
 #include <net/llc.h>
@@ -37,7 +35,6 @@ int llc_mac_hdr_init(struct sk_buff *skb,
         int rc = -EINVAL;
 
         switch (skb->dev->type) {
-        case ARPHRD_IEEE802_TR:
         case ARPHRD_ETHER:
         case ARPHRD_LOOPBACK:
                 rc = dev_hard_header(skb, skb->dev, ETH_P_802_2, da, sa,
diff --git a/net/llc/llc_sap.c b/net/llc/llc_sap.c
index 94e7fca75b85..7c5073badc73 100644
--- a/net/llc/llc_sap.c
+++ b/net/llc/llc_sap.c
@@ -31,10 +31,6 @@ static int llc_mac_header_len(unsigned short devtype)
         case ARPHRD_ETHER:
         case ARPHRD_LOOPBACK:
                 return sizeof(struct ethhdr);
-#if defined(CONFIG_TR) || defined(CONFIG_TR_MODULE)
-        case ARPHRD_IEEE802_TR:
-                return sizeof(struct trh_hdr);
-#endif
         }
         return 0;
 }
diff --git a/net/sysctl_net.c b/net/sysctl_net.c
index f3e813a8d107..e3a6e37cd1c5 100644
--- a/net/sysctl_net.c
+++ b/net/sysctl_net.c
@@ -26,10 +26,6 @@
 #include <linux/if_ether.h>
 #endif
 
-#ifdef CONFIG_TR
-#include <linux/if_tr.h>
-#endif
-
 static struct ctl_table_set *
 net_ctl_header_lookup(struct ctl_table_root *root, struct nsproxy *namespaces)
 {