net: convert unicast addr list

This patch converts unicast address list to standard list_head using
previously introduced struct netdev_hw_addr. It also relaxes the
locking. Original spinlock (still used for multicast addresses) is not
needed and is no longer used for a protection of this list. All
reading and writing takes place under rtnl (with no changes).

I also removed a possibility to specify the length of the address
while adding or deleting unicast address. It's always dev->addr_len.

The convertion touched especially e1000 and ixgbe codes when the
change is not so trivial.

Signed-off-by: Jiri Pirko <jpirko@redhat.com>

 drivers/net/bnx2.c               |   13 +--
 drivers/net/e1000/e1000_main.c   |   24 +++--
 drivers/net/ixgbe/ixgbe_common.c |   14 ++--
 drivers/net/ixgbe/ixgbe_common.h |    4 +-
 drivers/net/ixgbe/ixgbe_main.c   |    6 +-
 drivers/net/ixgbe/ixgbe_type.h   |    4 +-
 drivers/net/macvlan.c            |   11 +-
 drivers/net/mv643xx_eth.c        |   11 +-
 drivers/net/niu.c                |    7 +-
 drivers/net/virtio_net.c         |    7 +-
 drivers/s390/net/qeth_l2_main.c  |    6 +-
 drivers/scsi/fcoe/fcoe.c         |   16 ++--
 include/linux/netdevice.h        |   18 ++--
 net/8021q/vlan.c                 |    4 +-
 net/8021q/vlan_dev.c             |   10 +-
 net/core/dev.c                   |  195 +++++++++++++++++++++++++++-----------
 net/dsa/slave.c                  |   10 +-
 net/packet/af_packet.c           |    4 +-
 18 files changed, 227 insertions(+), 137 deletions(-)
Signed-off-by: David S. Miller <davem@davemloft.net>

4 files changed, 12 insertions, 16 deletions

diff --git a/drivers/net/ixgbe/ixgbe_common.c b/drivers/net/ixgbe/ixgbe_common.c
index 0cc3c47..6f79409 100644
--- a/drivers/net/ixgbe/ixgbe_common.c
+++ b/drivers/net/ixgbe/ixgbe_common.c
@@ -28,6 +28,8 @@
 #include <linux/pci.h>
 #include <linux/delay.h>
 #include <linux/sched.h>
+#include <linux/list.h>
+#include <linux/netdevice.h>
 
 #include "ixgbe.h"
 #include "ixgbe_common.h"
@@ -1356,15 +1358,14 @@ static void ixgbe_add_uc_addr(struct ixgbe_hw *hw, u8 *addr, u32 vmdq)
  *  Drivers using secondary unicast addresses must set user_set_promisc when
  *  manually putting the device into promiscuous mode.
  **/
-s32 ixgbe_update_uc_addr_list_generic(struct ixgbe_hw *hw, u8 *addr_list,
-                              u32 addr_count, ixgbe_mc_addr_itr next)
+s32 ixgbe_update_uc_addr_list_generic(struct ixgbe_hw *hw,
+				      struct list_head *uc_list)
 {
-	u8 *addr;
 	u32 i;
 	u32 old_promisc_setting = hw->addr_ctrl.overflow_promisc;
 	u32 uc_addr_in_use;
 	u32 fctrl;
-	u32 vmdq;
+	struct netdev_hw_addr *ha;
 
 	/*
 	 * Clear accounting of old secondary address list,
@@ -1382,10 +1383,9 @@ s32 ixgbe_update_uc_addr_list_generic(struct ixgbe_hw *hw, u8 *addr_list,
 	}
 
 	/* Add the new addresses */
-	for (i = 0; i < addr_count; i++) {
+	list_for_each_entry(ha, uc_list, list) {
 		hw_dbg(hw, " Adding the secondary addresses:\n");
-		addr = next(hw, &addr_list, &vmdq);
-		ixgbe_add_uc_addr(hw, addr, vmdq);
+		ixgbe_add_uc_addr(hw, ha->addr, 0);
 	}
 
 	if (hw->addr_ctrl.overflow_promisc) {
diff --git a/drivers/net/ixgbe/ixgbe_common.h b/drivers/net/ixgbe/ixgbe_common.h
index dd26089..b2a4b2c 100644
--- a/drivers/net/ixgbe/ixgbe_common.h
+++ b/drivers/net/ixgbe/ixgbe_common.h
@@ -59,8 +59,8 @@ s32 ixgbe_init_rx_addrs_generic(struct ixgbe_hw *hw);
 s32 ixgbe_update_mc_addr_list_generic(struct ixgbe_hw *hw, u8 *mc_addr_list,
                                       u32 mc_addr_count,
                                       ixgbe_mc_addr_itr func);
-s32 ixgbe_update_uc_addr_list_generic(struct ixgbe_hw *hw, u8 *addr_list,
-                                      u32 addr_count, ixgbe_mc_addr_itr func);
+s32 ixgbe_update_uc_addr_list_generic(struct ixgbe_hw *hw,
+				      struct list_head *uc_list);
 s32 ixgbe_enable_mc_generic(struct ixgbe_hw *hw);
 s32 ixgbe_disable_mc_generic(struct ixgbe_hw *hw);
 s32 ixgbe_enable_rx_dma_generic(struct ixgbe_hw *hw, u32 regval);
diff --git a/drivers/net/ixgbe/ixgbe_main.c b/drivers/net/ixgbe/ixgbe_main.c
index 924aa5e..de70a2d 100644
--- a/drivers/net/ixgbe/ixgbe_main.c
+++ b/drivers/net/ixgbe/ixgbe_main.c
@@ -2181,11 +2181,7 @@ static void ixgbe_set_rx_mode(struct net_device *netdev)
 	IXGBE_WRITE_REG(hw, IXGBE_VLNCTRL, vlnctrl);
 
 	/* reprogram secondary unicast list */
-	addr_count = netdev->uc_count;
-	if (addr_count)
-		addr_list = netdev->uc_list->dmi_addr;
-	hw->mac.ops.update_uc_addr_list(hw, addr_list, addr_count,
-	                                  ixgbe_addr_list_itr);
+	hw->mac.ops.update_uc_addr_list(hw, &netdev->uc_list);
 
 	/* reprogram multicast list */
 	addr_count = netdev->mc_count;
diff --git a/drivers/net/ixgbe/ixgbe_type.h b/drivers/net/ixgbe/ixgbe_type.h
index df1f703..a8a8243 100644
--- a/drivers/net/ixgbe/ixgbe_type.h
+++ b/drivers/net/ixgbe/ixgbe_type.h
@@ -30,6 +30,7 @@
 
 #include <linux/types.h>
 #include <linux/mdio.h>
+#include <linux/list.h>
 
 /* Vendor ID */
 #define IXGBE_INTEL_VENDOR_ID   0x8086
@@ -2223,8 +2224,7 @@ struct ixgbe_mac_operations {
 	s32 (*set_vmdq)(struct ixgbe_hw *, u32, u32);
 	s32 (*clear_vmdq)(struct ixgbe_hw *, u32, u32);
 	s32 (*init_rx_addrs)(struct ixgbe_hw *);
-	s32 (*update_uc_addr_list)(struct ixgbe_hw *, u8 *, u32,
-	                           ixgbe_mc_addr_itr);
+	s32 (*update_uc_addr_list)(struct ixgbe_hw *, struct list_head *);
 	s32 (*update_mc_addr_list)(struct ixgbe_hw *, u8 *, u32,
 	                           ixgbe_mc_addr_itr);
 	s32 (*enable_mc)(struct ixgbe_hw *);