[PATCH 4.2.y-ckt 105/305] net: mvneta: fix bit assignment for RX packet irq enable

From: Kamal Mostafa
Date: Fri Jan 15 2016 - 20:05:23 EST


4.2.8-ckt2 -stable review patch. If anyone has any objections, please let me know.

---8<------------------------------------------------------------

From: Marcin Wojtas <mw@xxxxxxxxxxxx>

commit dc1aadf6f1e7609590fadf7a0252413732289b2e upstream.

A value originally defined in the driver was inappropriate. Even though
the ingress was somehow working, writing MVNETA_RXQ_INTR_ENABLE_ALL_MASK
to MVNETA_INTR_ENABLE didn't make any effect, because the bits [31:16]
are reserved and read-only.

This commit updates MVNETA_RXQ_INTR_ENABLE_ALL_MASK to be compliant with
the controller's documentation.

Signed-off-by: Marcin Wojtas <mw@xxxxxxxxxxxx>

Fixes: c5aff18204da ("net: mvneta: driver for Marvell Armada 370/XP network
unit")
Signed-off-by: David S. Miller <davem@xxxxxxxxxxxxx>

Signed-off-by: Kamal Mostafa <kamal@xxxxxxxxxxxxx>
---
drivers/net/ethernet/marvell/mvneta.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/marvell/mvneta.c b/drivers/net/ethernet/marvell/mvneta.c
index 1e0d38b..82f63e9 100644
--- a/drivers/net/ethernet/marvell/mvneta.c
+++ b/drivers/net/ethernet/marvell/mvneta.c
@@ -156,7 +156,7 @@

#define MVNETA_INTR_ENABLE 0x25b8
#define MVNETA_TXQ_INTR_ENABLE_ALL_MASK 0x0000ff00
-#define MVNETA_RXQ_INTR_ENABLE_ALL_MASK 0xff000000 // note: neta says it's 0x000000FF
+#define MVNETA_RXQ_INTR_ENABLE_ALL_MASK 0x000000ff

#define MVNETA_RXQ_CMD 0x2680
#define MVNETA_RXQ_DISABLE_SHIFT 8
--
1.9.1