commit d941bebf5e89478f480038ea30d194537eb64311
author Punnaiah Choudary Kalluri <punnaiah.choudary.kalluri@xilinx.com> Thu Mar 05 15:02:10 2015 +0100
committer David S. Miller <davem@davemloft.net> Thu Mar 05 22:19:24 2015 -0500
tree 73b8e5cf7a21d0e9de1d3f549ece602dd02785fc
parent f50724cdfeea37ddbd969e1445be7c85329d7d09

net: macb: Correct the MID field length value

The latest spec "I-IPA01-0266-USR Rev 10" limit the MID field length to 12 bit
value. For previous versions it is 16 bit value.

This change will not break the backward compatibility as the latest ID value is
7 and with in the 12 bit value limit.

Signed-off-by: Punnaiah Choudary Kalluri <punnaia@xilinx.com>
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers/net/ethernet/cadence/macb.h

diff --git a/drivers/net/ethernet/cadence/macb.h b/drivers/net/ethernet/cadence/macb.h
index 31dc080..ff85619 100644
--- a/drivers/net/ethernet/cadence/macb.h
+++ b/drivers/net/ethernet/cadence/macb.h
@@ -351,7 +351,7 @@
 
 /* Bitfields in MID */
 #define MACB_IDNUM_OFFSET			16
-#define MACB_IDNUM_SIZE				16
+#define MACB_IDNUM_SIZE				12
 #define MACB_REV_OFFSET				0
 #define MACB_REV_SIZE				16