linux-kernel - [PATCH 4.1 01/46] net/ibm/emac: bump version numbers for correct work with ethtool

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Date:	Fri, 23 Oct 2015 10:45:47 -0700
From:	Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:	linux-kernel@...r.kernel.org
Cc:	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	stable@...r.kernel.org, Ivan Mikhaylov <ivan@...ibm.com>,
	"David S. Miller" <davem@...emloft.net>
Subject: [PATCH 4.1 01/46] net/ibm/emac: bump version numbers for correct work with ethtool

4.1-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Ivan Mikhaylov <ivan@...ibm.com>

[ Upstream commit 661dfc65f7981481ba2e31aaa702371e82336e56 ]

The size of the MAC register dump used to be the size specified by the
reg property in the device tree.  Userland has no good way of finding
out that size, and it was not specified consistently for each MAC type,
so ethtool would end up printing junk at the end of the register dump
if the device tree didn't match the size it assumed.

Using the new version numbers indicates unambiguously that the size of
the MAC register dump is dependent only on the MAC type.

Fixes: 5369c71f7ca2 ("net/ibm/emac: fix size of emac dump memory areas")
Signed-off-by: Ivan Mikhaylov <ivan@...ibm.com>
Signed-off-by: David S. Miller <davem@...emloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
---
 drivers/net/ethernet/ibm/emac/core.h |    6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

--- a/drivers/net/ethernet/ibm/emac/core.h
+++ b/drivers/net/ethernet/ibm/emac/core.h
@@ -460,8 +460,8 @@ struct emac_ethtool_regs_subhdr {
 	u32 index;
 };
 
-#define EMAC_ETHTOOL_REGS_VER		0
-#define EMAC4_ETHTOOL_REGS_VER		1
-#define EMAC4SYNC_ETHTOOL_REGS_VER	2
+#define EMAC_ETHTOOL_REGS_VER		3
+#define EMAC4_ETHTOOL_REGS_VER		4
+#define EMAC4SYNC_ETHTOOL_REGS_VER	5
 
 #endif /* __IBM_NEWEMAC_CORE_H */


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