Phonet: allocate separate ARP type for GPRS over a Phonet pipe

A separate xmit lock class supports GPRS over a Phonet pipe over a TUN
device (type ARPHRD_NONE).

Signed-off-by: Rémi Denis-Courmont <remi.denis-courmont@nokia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

3 files changed, 4 insertions, 3 deletions

diff --git a/include/linux/if_arp.h b/include/linux/if_arp.h
index 11df77ab2dbb..5ff89809a581 100644
--- a/include/linux/if_arp.h
+++ b/include/linux/if_arp.h
@@ -88,6 +88,7 @@
 #define ARPHRD_IEEE80211_RADIOTAP 803   /* IEEE 802.11 + radiotap header */
 
 #define ARPHRD_PHONET   820             /* PhoNet media type            */
+#define ARPHRD_PHONET_PIPE 821          /* PhoNet pipe header           */
 
 #define ARPHRD_VOID       0xFFFF        /* Void type, nothing is known */
 #define ARPHRD_NONE       0xFFFE        /* zero header length */
diff --git a/net/core/dev.c b/net/core/dev.c
index 15aab0c46d6d..048cf1197872 100644
--- a/net/core/dev.c
+++ b/net/core/dev.c
@@ -284,7 +284,7 @@ static const unsigned short netdev_lock_type[] =
          ARPHRD_IRDA, ARPHRD_FCPP, ARPHRD_FCAL, ARPHRD_FCPL,
          ARPHRD_FCFABRIC, ARPHRD_IEEE802_TR, ARPHRD_IEEE80211,
          ARPHRD_IEEE80211_PRISM, ARPHRD_IEEE80211_RADIOTAP, ARPHRD_PHONET,
-         ARPHRD_VOID, ARPHRD_NONE};
+         ARPHRD_PHONET_PIPE, ARPHRD_VOID, ARPHRD_NONE};
 
 static const char *netdev_lock_name[] =
         {"_xmit_NETROM", "_xmit_ETHER", "_xmit_EETHER", "_xmit_AX25",
@@ -301,7 +301,7 @@ static const char *netdev_lock_name[] =
          "_xmit_IRDA", "_xmit_FCPP", "_xmit_FCAL", "_xmit_FCPL",
          "_xmit_FCFABRIC", "_xmit_IEEE802_TR", "_xmit_IEEE80211",
          "_xmit_IEEE80211_PRISM", "_xmit_IEEE80211_RADIOTAP", "_xmit_PHONET",
-         "_xmit_VOID", "_xmit_NONE"};
+         "_xmit_PHONET_PIPE", "_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/phonet/pep-gprs.c b/net/phonet/pep-gprs.c
index 0b640b0fce0c..a2873203dff2 100644
--- a/net/phonet/pep-gprs.c
+++ b/net/phonet/pep-gprs.c
@@ -260,7 +260,7 @@ static int gprs_set_mtu(struct net_device *dev, int new_mtu)
 static void gprs_setup(struct net_device *dev)
 {
         dev->features           = NETIF_F_FRAGLIST;
-        dev->type               = ARPHRD_NONE;
+        dev->type               = ARPHRD_PHONET_PIPE;
         dev->flags              = IFF_POINTOPOINT | IFF_NOARP;
         dev->mtu                = GPRS_DEFAULT_MTU;
         dev->hard_header_len    = 0;