net: add ETH_P_802_3_MIN

Add a new constant ETH_P_802_3_MIN, the minimum ethernet type for
an 802.3 frame. Frames with a lower value in the ethernet type field
are Ethernet II.

Also update all the users of this value that David Miller and
I could find to use the new constant.

Also correct a bug in util.c. The comparison with ETH_P_802_3_MIN
should be >= not >.

As suggested by Jesse Gross.

Compile tested only.

Cc: David Miller <[email protected]>
Cc: Jesse Gross <[email protected]>
Cc: Karsten Keil <[email protected]>
Cc: John W. Linville <[email protected]>
Cc: Johannes Berg <[email protected]>
Cc: Bart De Schuymer <[email protected]>
Cc: Stephen Hemminger <[email protected]>
Cc: Patrick McHardy <[email protected]>
Cc: Marcel Holtmann <[email protected]>
Cc: Gustavo Padovan <[email protected]>
Cc: Johan Hedberg <[email protected]>
Cc: [email protected]
Cc: [email protected]
Cc: [email protected]
Cc: [email protected]
Cc: [email protected]
Cc: [email protected]
Cc: [email protected]
Cc: [email protected]
Acked-by: Mauro Carvalho Chehab <[email protected]>
Acked-by: Stefan Richter <[email protected]>
Signed-off-by: Simon Horman <[email protected]>
Signed-off-by: David S. Miller <[email protected]>

1 files changed, 3 insertions, 0 deletions

diff --git a/include/uapi/linux/if_ether.h b/include/uapi/linux/if_ether.h
index 798032d01112..ade07f1c491a 100644
--- a/include/uapi/linux/if_ether.h
+++ b/include/uapi/linux/if_ether.h
@@ -94,6 +94,9 @@
 #define ETH_P_EDSA	0xDADA		/* Ethertype DSA [ NOT AN OFFICIALLY REGISTERED ID ] */
 #define ETH_P_AF_IUCV   0xFBFB		/* IBM af_iucv [ NOT AN OFFICIALLY REGISTERED ID ] */
 
+#define ETH_P_802_3_MIN	0x0600		/* If the value in the ethernet type is less than this value
+					 * then the frame is Ethernet II. Else it is 802.3 */
+
 /*
  *	Non DIX types. Won't clash for 1500 types.
  */