Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6

* 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6: (25 commits)
  [TG3]: Fix msi issue with kexec/kdump.
  [NET] XFRM: Fix whitespace errors.
  [NET] TIPC: Fix whitespace errors.
  [NET] SUNRPC: Fix whitespace errors.
  [NET] SCTP: Fix whitespace errors.
  [NET] RXRPC: Fix whitespace errors.
  [NET] ROSE: Fix whitespace errors.
  [NET] RFKILL: Fix whitespace errors.
  [NET] PACKET: Fix whitespace errors.
  [NET] NETROM: Fix whitespace errors.
  [NET] NETFILTER: Fix whitespace errors.
  [NET] IPV4: Fix whitespace errors.
  [NET] DCCP: Fix whitespace errors.
  [NET] CORE: Fix whitespace errors.
  [NET] BLUETOOTH: Fix whitespace errors.
  [NET] AX25: Fix whitespace errors.
  [PATCH] mac80211: remove rtnl locking in ieee80211_sta.c
  [PATCH] mac80211: fix GCC warning on 64bit platforms
  [GENETLINK]: Dynamic multicast groups.
  [NETLIKN]: Allow removing multicast groups.
  ...

37 files changed, 663 insertions, 270 deletions

diff --git a/drivers/net/tg3.c b/drivers/net/tg3.c
index 5ee14764fd74..887b9a5cfe48 100644
--- a/drivers/net/tg3.c
+++ b/drivers/net/tg3.c
@@ -64,8 +64,8 @@
 
 #define DRV_MODULE_NAME		"tg3"
 #define PFX DRV_MODULE_NAME	": "
-#define DRV_MODULE_VERSION	"3.78"
-#define DRV_MODULE_RELDATE	"July 11, 2007"
+#define DRV_MODULE_VERSION	"3.79"
+#define DRV_MODULE_RELDATE	"July 18, 2007"
 
 #define TG3_DEF_MAC_MODE	0
 #define TG3_DEF_RX_MODE		0
@@ -4847,6 +4847,59 @@ static int tg3_poll_fw(struct tg3 *tp)
 	return 0;
 }
 
+/* Save PCI command register before chip reset */
+static void tg3_save_pci_state(struct tg3 *tp)
+{
+	u32 val;
+
+	pci_read_config_dword(tp->pdev, TG3PCI_COMMAND, &val);
+	tp->pci_cmd = val;
+}
+
+/* Restore PCI state after chip reset */
+static void tg3_restore_pci_state(struct tg3 *tp)
+{
+	u32 val;
+
+	/* Re-enable indirect register accesses. */
+	pci_write_config_dword(tp->pdev, TG3PCI_MISC_HOST_CTRL,
+			       tp->misc_host_ctrl);
+
+	/* Set MAX PCI retry to zero. */
+	val = (PCISTATE_ROM_ENABLE | PCISTATE_ROM_RETRY_ENABLE);
+	if (tp->pci_chip_rev_id == CHIPREV_ID_5704_A0 &&
+	    (tp->tg3_flags & TG3_FLAG_PCIX_MODE))
+		val |= PCISTATE_RETRY_SAME_DMA;
+	pci_write_config_dword(tp->pdev, TG3PCI_PCISTATE, val);
+
+	pci_write_config_dword(tp->pdev, TG3PCI_COMMAND, tp->pci_cmd);
+
+	/* Make sure PCI-X relaxed ordering bit is clear. */
+	pci_read_config_dword(tp->pdev, TG3PCI_X_CAPS, &val);
+	val &= ~PCIX_CAPS_RELAXED_ORDERING;
+	pci_write_config_dword(tp->pdev, TG3PCI_X_CAPS, val);
+
+	if (tp->tg3_flags2 & TG3_FLG2_5780_CLASS) {
+		u32 val;
+
+		/* Chip reset on 5780 will reset MSI enable bit,
+		 * so need to restore it.
+		 */
+		if (tp->tg3_flags2 & TG3_FLG2_USING_MSI) {
+			u16 ctrl;
+
+			pci_read_config_word(tp->pdev,
+					     tp->msi_cap + PCI_MSI_FLAGS,
+					     &ctrl);
+			pci_write_config_word(tp->pdev,
+					      tp->msi_cap + PCI_MSI_FLAGS,
+					      ctrl | PCI_MSI_FLAGS_ENABLE);
+			val = tr32(MSGINT_MODE);
+			tw32(MSGINT_MODE, val | MSGINT_MODE_ENABLE);
+		}
+	}
+}
+
 static void tg3_stop_fw(struct tg3 *);
 
 /* tp->lock is held. */
@@ -4863,6 +4916,12 @@ static int tg3_chip_reset(struct tg3 *tp)
 	 */
 	tp->nvram_lock_cnt = 0;
 
+	/* GRC_MISC_CFG core clock reset will clear the memory
+	 * enable bit in PCI register 4 and the MSI enable bit
+	 * on some chips, so we save relevant registers here.
+	 */
+	tg3_save_pci_state(tp);
+
 	if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5752 ||
 	    GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5755 ||
 	    GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5787)
@@ -4961,50 +5020,14 @@ static int tg3_chip_reset(struct tg3 *tp)
 		pci_write_config_dword(tp->pdev, 0xd8, 0xf5000);
 	}
 
-	/* Re-enable indirect register accesses. */
-	pci_write_config_dword(tp->pdev, TG3PCI_MISC_HOST_CTRL,
-			       tp->misc_host_ctrl);
-
-	/* Set MAX PCI retry to zero. */
-	val = (PCISTATE_ROM_ENABLE | PCISTATE_ROM_RETRY_ENABLE);
-	if (tp->pci_chip_rev_id == CHIPREV_ID_5704_A0 &&
-	    (tp->tg3_flags & TG3_FLAG_PCIX_MODE))
-		val |= PCISTATE_RETRY_SAME_DMA;
-	pci_write_config_dword(tp->pdev, TG3PCI_PCISTATE, val);
-
-	pci_restore_state(tp->pdev);
+	tg3_restore_pci_state(tp);
 
 	tp->tg3_flags &= ~TG3_FLAG_CHIP_RESETTING;
 
-	/* Make sure PCI-X relaxed ordering bit is clear. */
-	pci_read_config_dword(tp->pdev, TG3PCI_X_CAPS, &val);
-	val &= ~PCIX_CAPS_RELAXED_ORDERING;
-	pci_write_config_dword(tp->pdev, TG3PCI_X_CAPS, val);
-
-	if (tp->tg3_flags2 & TG3_FLG2_5780_CLASS) {
-		u32 val;
-
-		/* Chip reset on 5780 will reset MSI enable bit,
-		 * so need to restore it.
-		 */
-		if (tp->tg3_flags2 & TG3_FLG2_USING_MSI) {
-			u16 ctrl;
-
-			pci_read_config_word(tp->pdev,
-					     tp->msi_cap + PCI_MSI_FLAGS,
-					     &ctrl);
-			pci_write_config_word(tp->pdev,
-					      tp->msi_cap + PCI_MSI_FLAGS,
-					      ctrl | PCI_MSI_FLAGS_ENABLE);
-			val = tr32(MSGINT_MODE);
-			tw32(MSGINT_MODE, val | MSGINT_MODE_ENABLE);
-		}
-
+	val = 0;
+	if (tp->tg3_flags2 & TG3_FLG2_5780_CLASS)
 		val = tr32(MEMARB_MODE);
-		tw32(MEMARB_MODE, val | MEMARB_MODE_ENABLE);
-
-	} else
-		tw32(MEMARB_MODE, MEMARB_MODE_ENABLE);
+	tw32(MEMARB_MODE, val | MEMARB_MODE_ENABLE);
 
 	if (tp->pci_chip_rev_id == CHIPREV_ID_5750_A3) {
 		tg3_stop_fw(tp);
@@ -11978,7 +12001,6 @@ static int __devinit tg3_init_one(struct pci_dev *pdev,
 	 */
 	if ((tr32(HOSTCC_MODE) & HOSTCC_MODE_ENABLE) ||
 	    (tr32(WDMAC_MODE) & WDMAC_MODE_ENABLE)) {
-		pci_save_state(tp->pdev);
 		tw32(MEMARB_MODE, MEMARB_MODE_ENABLE);
 		tg3_halt(tp, RESET_KIND_SHUTDOWN, 1);
 	}
@@ -12007,12 +12029,6 @@ static int __devinit tg3_init_one(struct pci_dev *pdev,
 
 	tg3_init_coal(tp);
 
-	/* Now that we have fully setup the chip, save away a snapshot
-	 * of the PCI config space.  We need to restore this after
-	 * GRC_MISC_CFG core clock resets and some resume events.
-	 */
-	pci_save_state(tp->pdev);
-
 	pci_set_drvdata(pdev, dev);
 
 	err = register_netdev(dev);
diff --git a/drivers/net/tg3.h b/drivers/net/tg3.h
index d84e75e7365d..5c21f49026c9 100644
--- a/drivers/net/tg3.h
+++ b/drivers/net/tg3.h
@@ -2345,6 +2345,7 @@ struct tg3 {
 #define PHY_REV_BCM5411_X0		0x1 /* Found on Netgear GA302T */
 
 	u32				led_ctrl;
+	u32				pci_cmd;
 
 	char				board_part_number[24];
 	char				fw_ver[16];
diff --git a/include/linux/genetlink.h b/include/linux/genetlink.h
index f7a93770e1be..7da02c93002b 100644
--- a/include/linux/genetlink.h
+++ b/include/linux/genetlink.h
@@ -39,6 +39,9 @@ enum {
 	CTRL_CMD_NEWOPS,
 	CTRL_CMD_DELOPS,
 	CTRL_CMD_GETOPS,
+	CTRL_CMD_NEWMCAST_GRP,
+	CTRL_CMD_DELMCAST_GRP,
+	CTRL_CMD_GETMCAST_GRP, /* unused */
 	__CTRL_CMD_MAX,
 };
 
@@ -52,6 +55,7 @@ enum {
 	CTRL_ATTR_HDRSIZE,
 	CTRL_ATTR_MAXATTR,
 	CTRL_ATTR_OPS,
+	CTRL_ATTR_MCAST_GROUPS,
 	__CTRL_ATTR_MAX,
 };
 
@@ -66,4 +70,13 @@ enum {
 
 #define CTRL_ATTR_OP_MAX (__CTRL_ATTR_OP_MAX - 1)
 
+enum {
+	CTRL_ATTR_MCAST_GRP_UNSPEC,
+	CTRL_ATTR_MCAST_GRP_NAME,
+	CTRL_ATTR_MCAST_GRP_ID,
+	__CTRL_ATTR_MCAST_GRP_MAX,
+};
+
+#define CTRL_ATTR_MCAST_GRP_MAX (__CTRL_ATTR_MCAST_GRP_MAX - 1)
+
 #endif	/* __LINUX_GENERIC_NETLINK_H */
diff --git a/include/linux/netlink.h b/include/linux/netlink.h
index 2e23353c28a5..83d8239f0cce 100644
--- a/include/linux/netlink.h
+++ b/include/linux/netlink.h
@@ -161,6 +161,8 @@ extern struct sock *netlink_kernel_create(int unit, unsigned int groups,
 					  void (*input)(struct sock *sk, int len),
 					  struct mutex *cb_mutex,
 					  struct module *module);
+extern int netlink_change_ngroups(struct sock *sk, unsigned int groups);
+extern void netlink_clear_multicast_users(struct sock *sk, unsigned int group);
 extern void netlink_ack(struct sk_buff *in_skb, struct nlmsghdr *nlh, int err);
 extern int netlink_has_listeners(struct sock *sk, unsigned int group);
 extern int netlink_unicast(struct sock *ssk, struct sk_buff *skb, __u32 pid, int nonblock);
diff --git a/include/net/genetlink.h b/include/net/genetlink.h
index b6eaca122db8..decdda546829 100644
--- a/include/net/genetlink.h
+++ b/include/net/genetlink.h
@@ -5,6 +5,22 @@
 #include <net/netlink.h>
 
 /**
+ * struct genl_multicast_group - generic netlink multicast group
+ * @name: name of the multicast group, names are per-family
+ * @id: multicast group ID, assigned by the core, to use with
+ *      genlmsg_multicast().
+ * @list: list entry for linking
+ * @family: pointer to family, need not be set before registering
+ */
+struct genl_multicast_group
+{
+	struct genl_family	*family;	/* private */
+	struct list_head	list;		/* private */
+	char			name[GENL_NAMSIZ];
+	u32			id;
+};
+
+/**
  * struct genl_family - generic netlink family
  * @id: protocol family idenfitier
  * @hdrsize: length of user specific header in bytes
@@ -14,6 +30,7 @@
  * @attrbuf: buffer to store parsed attributes
  * @ops_list: list of all assigned operations
  * @family_list: family list
+ * @mcast_groups: multicast groups list
  */
 struct genl_family
 {
@@ -25,6 +42,7 @@ struct genl_family
 	struct nlattr **	attrbuf;	/* private */
 	struct list_head	ops_list;	/* private */
 	struct list_head	family_list;	/* private */
+	struct list_head	mcast_groups;	/* private */
 };
 
 /**
@@ -73,6 +91,10 @@ extern int genl_register_family(struct genl_family *family);
 extern int genl_unregister_family(struct genl_family *family);
 extern int genl_register_ops(struct genl_family *, struct genl_ops *ops);
 extern int genl_unregister_ops(struct genl_family *, struct genl_ops *ops);
+extern int genl_register_mc_group(struct genl_family *family,
+				  struct genl_multicast_group *grp);
+extern void genl_unregister_mc_group(struct genl_family *family,
+				     struct genl_multicast_group *grp);
 
 extern struct sock *genl_sock;
 
diff --git a/net/ax25/af_ax25.c b/net/ax25/af_ax25.c
index c83cf8432970..dae2a42d3d86 100644
--- a/net/ax25/af_ax25.c
+++ b/net/ax25/af_ax25.c
@@ -1262,7 +1262,7 @@ static int __must_check ax25_connect(struct socket *sock,
 
 		for (;;) {
 			prepare_to_wait(sk->sk_sleep, &wait,
-			                TASK_INTERRUPTIBLE);
+					TASK_INTERRUPTIBLE);
 			if (sk->sk_state != TCP_SYN_SENT)
 				break;
 			if (!signal_pending(current)) {
diff --git a/net/bluetooth/hci_core.c b/net/bluetooth/hci_core.c
index f6d867e0179f..63caa414945d 100644
--- a/net/bluetooth/hci_core.c
+++ b/net/bluetooth/hci_core.c
@@ -982,7 +982,7 @@ int hci_recv_fragment(struct hci_dev *hdev, int type, void *data, int count)
 
 			skb->dev = (void *) hdev;
 			bt_cb(skb)->pkt_type = type;
-	
+
 			__reassembly(hdev, type) = skb;
 
 			scb = (void *) skb->cb;
diff --git a/net/core/dev.c b/net/core/dev.c
index 6357f54c8ff7..38212c3f9971 100644
--- a/net/core/dev.c
+++ b/net/core/dev.c
@@ -2629,7 +2629,7 @@ void __dev_set_rx_mode(struct net_device *dev)
 		return;
 
 	if (!netif_device_present(dev))
-	        return;
+		return;
 
 	if (dev->set_rx_mode)
 		dev->set_rx_mode(dev);
diff --git a/net/core/rtnetlink.c b/net/core/rtnetlink.c
index 864cbdf31ed7..06eccca8cb5d 100644
--- a/net/core/rtnetlink.c
+++ b/net/core/rtnetlink.c
@@ -98,7 +98,7 @@ int rtattr_parse(struct rtattr *tb[], int maxattr, struct rtattr *rta, int len)
 }
 
 int __rtattr_parse_nested_compat(struct rtattr *tb[], int maxattr,
-			         struct rtattr *rta, int len)
+				 struct rtattr *rta, int len)
 {
 	if (RTA_PAYLOAD(rta) < len)
 		return -1;
diff --git a/net/core/sock.c b/net/core/sock.c
index 25d2557211c1..239a08a6ff24 100644
--- a/net/core/sock.c
+++ b/net/core/sock.c
@@ -230,7 +230,7 @@ static int sock_set_timeout(long *timeo_p, char __user *optval, int optlen)
 			warned++;
 			printk(KERN_INFO "sock_set_timeout: `%s' (pid %d) "
 			       "tries to set negative timeout\n",
-			        current->comm, current->pid);
+				current->comm, current->pid);
 		return 0;
 	}
 	*timeo_p = MAX_SCHEDULE_TIMEOUT;
diff --git a/net/dccp/ccids/lib/loss_interval.c b/net/dccp/ccids/lib/loss_interval.c
index 515225f3a464..dd0fc992b042 100644
--- a/net/dccp/ccids/lib/loss_interval.c
+++ b/net/dccp/ccids/lib/loss_interval.c
@@ -227,7 +227,7 @@ void dccp_li_update_li(struct sock *sk,
 		       struct list_head *li_hist_list,
 		       struct list_head *hist_list,
 		       struct timeval *last_feedback, u16 s, u32 bytes_recv,
-                       u32 previous_x_recv, u64 seq_loss, u8 win_loss)
+		       u32 previous_x_recv, u64 seq_loss, u8 win_loss)
 {
 	struct dccp_li_hist_entry *head;
 	u64 seq_temp;
diff --git a/net/ipv4/fib_frontend.c b/net/ipv4/fib_frontend.c
index 2eb909be8041..eff6bce453ee 100644
--- a/net/ipv4/fib_frontend.c
+++ b/net/ipv4/fib_frontend.c
@@ -817,7 +817,7 @@ static void nl_fib_input(struct sock *sk, int len)
 static void nl_fib_lookup_init(void)
 {
       netlink_kernel_create(NETLINK_FIB_LOOKUP, 0, nl_fib_input, NULL,
-      			    THIS_MODULE);
+			    THIS_MODULE);
 }
 
 static void fib_disable_ip(struct net_device *dev, int force)
diff --git a/net/ipv4/ip_forward.c b/net/ipv4/ip_forward.c
index 9cb04df0054b..8c95cf09f87a 100644
--- a/net/ipv4/ip_forward.c
+++ b/net/ipv4/ip_forward.c
@@ -86,7 +86,7 @@ int ip_forward(struct sk_buff *skb)
 		goto sr_failed;
 
 	if (unlikely(skb->len > dst_mtu(&rt->u.dst) &&
-	             (ip_hdr(skb)->frag_off & htons(IP_DF))) && !skb->local_df) {
+		     (ip_hdr(skb)->frag_off & htons(IP_DF))) && !skb->local_df) {
 		IP_INC_STATS(IPSTATS_MIB_FRAGFAILS);
 		icmp_send(skb, ICMP_DEST_UNREACH, ICMP_FRAG_NEEDED,
 			  htonl(dst_mtu(&rt->u.dst)));
diff --git a/net/ipv4/tcp_output.c b/net/ipv4/tcp_output.c
index 20aea1595c4d..666d8a58d14a 100644
--- a/net/ipv4/tcp_output.c
+++ b/net/ipv4/tcp_output.c
@@ -1615,7 +1615,7 @@ u32 __tcp_select_window(struct sock *sk)
 		if (window <= free_space - mss || window > free_space)
 			window = (free_space/mss)*mss;
 		else if (mss == full_space &&
-		         free_space > window + full_space/2)
+			 free_space > window + full_space/2)
 			window = free_space;
 	}
 
diff --git a/net/mac80211/Makefile b/net/mac80211/Makefile
index e9738dad2d7c..a9c2d0787d4a 100644
--- a/net/mac80211/Makefile
+++ b/net/mac80211/Makefile
@@ -13,6 +13,7 @@ mac80211-objs := \
 	ieee80211_iface.o \
 	ieee80211_rate.o \
 	michael.o \
+	regdomain.o \
 	tkip.o \
 	aes_ccm.o \
 	wme.o \
diff --git a/net/mac80211/debugfs_netdev.c b/net/mac80211/debugfs_netdev.c
index a3e01d76d503..799a9208c4b4 100644
--- a/net/mac80211/debugfs_netdev.c
+++ b/net/mac80211/debugfs_netdev.c
@@ -397,6 +397,8 @@ static int netdev_notify(struct notifier_block * nb,
 			 void *ndev)
 {
 	struct net_device *dev = ndev;
+	struct dentry *dir;
+	struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 	char buf[10+IFNAMSIZ];
 
 	if (state != NETDEV_CHANGENAME)
@@ -408,10 +410,11 @@ static int netdev_notify(struct notifier_block * nb,
 	if (dev->ieee80211_ptr->wiphy->privid != mac80211_wiphy_privid)
 		return 0;
 
-	/* TODO
 	sprintf(buf, "netdev:%s", dev->name);
-	debugfs_rename(IEEE80211_DEV_TO_SUB_IF(dev)->debugfsdir, buf);
-	*/
+	dir = sdata->debugfsdir;
+	if (!debugfs_rename(dir->d_parent, dir, dir->d_parent, buf))
+		printk(KERN_ERR "mac80211: debugfs: failed to rename debugfs "
+		       "dir to %s\n", buf);
 
 	return 0;
 }
diff --git a/net/mac80211/ieee80211.c b/net/mac80211/ieee80211.c
index 2ddf4ef4065e..c944b17d0fc0 100644
--- a/net/mac80211/ieee80211.c
+++ b/net/mac80211/ieee80211.c
@@ -4986,8 +4986,8 @@ int ieee80211_register_hw(struct ieee80211_hw *hw)
 	 * and we need some headroom for passing the frame to monitor
 	 * interfaces, but never both at the same time.
 	 */
-	local->tx_headroom = max(local->hw.extra_tx_headroom,
-				 sizeof(struct ieee80211_tx_status_rtap_hdr));
+	local->tx_headroom = max_t(unsigned int , local->hw.extra_tx_headroom,
+				   sizeof(struct ieee80211_tx_status_rtap_hdr));
 
 	debugfs_hw_add(local);
 
@@ -5095,7 +5095,7 @@ int ieee80211_register_hwmode(struct ieee80211_hw *hw,
 	}
 
 	if (!(hw->flags & IEEE80211_HW_DEFAULT_REG_DOMAIN_CONFIGURED))
-		ieee80211_init_client(local->mdev);
+		ieee80211_set_default_regdomain(mode);
 
 	return 0;
 }
@@ -5246,6 +5246,7 @@ static int __init ieee80211_init(void)
 	}
 
 	ieee80211_debugfs_netdev_init();
+	ieee80211_regdomain_init();
 
 	return 0;
 }
diff --git a/net/mac80211/ieee80211_i.h b/net/mac80211/ieee80211_i.h
index 055a2a912185..6f7bae7ef9c0 100644
--- a/net/mac80211/ieee80211_i.h
+++ b/net/mac80211/ieee80211_i.h
@@ -759,7 +759,6 @@ void ieee80211_update_default_wep_only(struct ieee80211_local *local);
 /* ieee80211_ioctl.c */
 int ieee80211_set_compression(struct ieee80211_local *local,
 			      struct net_device *dev, struct sta_info *sta);
-int ieee80211_init_client(struct net_device *dev);
 int ieee80211_set_channel(struct ieee80211_local *local, int channel, int freq);
 /* ieee80211_sta.c */
 void ieee80211_sta_timer(unsigned long data);
@@ -798,6 +797,10 @@ void ieee80211_if_sdata_init(struct ieee80211_sub_if_data *sdata);
 int ieee80211_if_add_mgmt(struct ieee80211_local *local);
 void ieee80211_if_del_mgmt(struct ieee80211_local *local);
 
+/* regdomain.c */
+void ieee80211_regdomain_init(void);
+void ieee80211_set_default_regdomain(struct ieee80211_hw_mode *mode);
+
 /* for wiphy privid */
 extern void *mac80211_wiphy_privid;
 
diff --git a/net/mac80211/ieee80211_ioctl.c b/net/mac80211/ieee80211_ioctl.c
index 5918dd079e12..d0e1ab5589db 100644
--- a/net/mac80211/ieee80211_ioctl.c
+++ b/net/mac80211/ieee80211_ioctl.c
@@ -27,20 +27,6 @@
 #include "aes_ccm.h"
 #include "debugfs_key.h"
 
-static int ieee80211_regdom = 0x10; /* FCC */
-module_param(ieee80211_regdom, int, 0444);
-MODULE_PARM_DESC(ieee80211_regdom, "IEEE 802.11 regulatory domain; 64=MKK");
-
-/*
- * If firmware is upgraded by the vendor, additional channels can be used based
- * on the new Japanese regulatory rules. This is indicated by setting
- * ieee80211_japan_5ghz module parameter to one when loading the 80211 kernel
- * module.
- */
-static int ieee80211_japan_5ghz /* = 0 */;
-module_param(ieee80211_japan_5ghz, int, 0444);
-MODULE_PARM_DESC(ieee80211_japan_5ghz, "Vendor-updated firmware for 5 GHz");
-
 static void ieee80211_set_hw_encryption(struct net_device *dev,
 					struct sta_info *sta, u8 addr[ETH_ALEN],
 					struct ieee80211_key *key)
@@ -412,125 +398,6 @@ static int ieee80211_ioctl_giwrange(struct net_device *dev,
 }
 
 
-struct ieee80211_channel_range {
-	short start_freq;
-	short end_freq;
-	unsigned char power_level;
-	unsigned char antenna_max;
-};
-
-static const struct ieee80211_channel_range ieee80211_fcc_channels[] = {
-	{ 2412, 2462, 27, 6 } /* IEEE 802.11b/g, channels 1..11 */,
-	{ 5180, 5240, 17, 6 } /* IEEE 802.11a, channels 36..48 */,
-	{ 5260, 5320, 23, 6 } /* IEEE 802.11a, channels 52..64 */,
-	{ 5745, 5825, 30, 6 } /* IEEE 802.11a, channels 149..165, outdoor */,
-	{ 0 }
-};
-
-static const struct ieee80211_channel_range ieee80211_mkk_channels[] = {
-	{ 2412, 2472, 20, 6 } /* IEEE 802.11b/g, channels 1..13 */,
-	{ 5170, 5240, 20, 6 } /* IEEE 802.11a, channels 34..48 */,
-	{ 5260, 5320, 20, 6 } /* IEEE 802.11a, channels 52..64 */,
-	{ 0 }
-};
-
-
-static const struct ieee80211_channel_range *channel_range =
-	ieee80211_fcc_channels;
-
-
-static void ieee80211_unmask_channel(struct net_device *dev, int mode,
-				     struct ieee80211_channel *chan)
-{
-	int i;
-
-	chan->flag = 0;
-
-	if (ieee80211_regdom == 64 &&
-	    (mode == MODE_ATHEROS_TURBO || mode == MODE_ATHEROS_TURBOG)) {
-		/* Do not allow Turbo modes in Japan. */
-		return;
-	}
-
-	for (i = 0; channel_range[i].start_freq; i++) {
-		const struct ieee80211_channel_range *r = &channel_range[i];
-		if (r->start_freq <= chan->freq && r->end_freq >= chan->freq) {
-			if (ieee80211_regdom == 64 && !ieee80211_japan_5ghz &&
-			    chan->freq >= 5260 && chan->freq <= 5320) {
-				/*
-				 * Skip new channels in Japan since the
-				 * firmware was not marked having been upgraded
-				 * by the vendor.
-				 */
-				continue;
-			}
-
-			if (ieee80211_regdom == 0x10 &&
-			    (chan->freq == 5190 || chan->freq == 5210 ||
-			     chan->freq == 5230)) {
-				    /* Skip MKK channels when in FCC domain. */
-				    continue;
-			}
-
-			chan->flag |= IEEE80211_CHAN_W_SCAN |
-				IEEE80211_CHAN_W_ACTIVE_SCAN |
-				IEEE80211_CHAN_W_IBSS;
-			chan->power_level = r->power_level;
-			chan->antenna_max = r->antenna_max;
-
-			if (ieee80211_regdom == 64 &&
-			    (chan->freq == 5170 || chan->freq == 5190 ||
-			     chan->freq == 5210 || chan->freq == 5230)) {
-				/*
-				 * New regulatory rules in Japan have backwards
-				 * compatibility with old channels in 5.15-5.25
-				 * GHz band, but the station is not allowed to
-				 * use active scan on these old channels.
-				 */
-				chan->flag &= ~IEEE80211_CHAN_W_ACTIVE_SCAN;
-			}
-
-			if (ieee80211_regdom == 64 &&
-			    (chan->freq == 5260 || chan->freq == 5280 ||
-			     chan->freq == 5300 || chan->freq == 5320)) {
-				/*
-				 * IBSS is not allowed on 5.25-5.35 GHz band
-				 * due to radar detection requirements.
-				 */
-				chan->flag &= ~IEEE80211_CHAN_W_IBSS;
-			}
-
-			break;
-		}
-	}
-}
-
-
-static int ieee80211_unmask_channels(struct net_device *dev)
-{
-	struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
-	struct ieee80211_hw_mode *mode;
-	int c;
-
-	list_for_each_entry(mode, &local->modes_list, list) {
-		for (c = 0; c < mode->num_channels; c++) {
-			ieee80211_unmask_channel(dev, mode->mode,
-						 &mode->channels[c]);
-		}
-	}
-	return 0;
-}
-
-
-int ieee80211_init_client(struct net_device *dev)
-{
-	if (ieee80211_regdom == 0x40)
-		channel_range = ieee80211_mkk_channels;
-	ieee80211_unmask_channels(dev);
-	return 0;
-}
-
-
 static int ieee80211_ioctl_siwmode(struct net_device *dev,
 				   struct iw_request_info *info,
 				   __u32 *mode, char *extra)
diff --git a/net/mac80211/ieee80211_sta.c b/net/mac80211/ieee80211_sta.c
index 22b11786327a..7ba352e3ffe0 100644
--- a/net/mac80211/ieee80211_sta.c
+++ b/net/mac80211/ieee80211_sta.c
@@ -25,7 +25,6 @@
 #include <linux/wireless.h>
 #include <linux/random.h>
 #include <linux/etherdevice.h>
-#include <linux/rtnetlink.h>
 #include <net/iw_handler.h>
 #include <asm/types.h>
 
@@ -2106,12 +2105,9 @@ static int ieee80211_sta_config_auth(struct net_device *dev,
 	struct ieee80211_sta_bss *bss, *selected = NULL;
 	int top_rssi = 0, freq;
 
-	rtnl_lock();
-
 	if (!ifsta->auto_channel_sel && !ifsta->auto_bssid_sel &&
 	    !ifsta->auto_ssid_sel) {
 		ifsta->state = IEEE80211_AUTHENTICATE;
-		rtnl_unlock();
 		ieee80211_sta_reset_auth(dev, ifsta);
 		return 0;
 	}
@@ -2154,7 +2150,6 @@ static int ieee80211_sta_config_auth(struct net_device *dev,
 		ieee80211_sta_set_bssid(dev, selected->bssid);
 		ieee80211_rx_bss_put(dev, selected);
 		ifsta->state = IEEE80211_AUTHENTICATE;
-		rtnl_unlock();
 		ieee80211_sta_reset_auth(dev, ifsta);
 		return 0;
 	} else {
@@ -2165,7 +2160,6 @@ static int ieee80211_sta_config_auth(struct net_device *dev,
 		} else
 			ifsta->state = IEEE80211_DISABLED;
 	}
-	rtnl_unlock();
 	return -1;
 }
 
diff --git a/net/mac80211/regdomain.c b/net/mac80211/regdomain.c
new file mode 100644
index 000000000000..b697a2afbb4b
--- /dev/null
+++ b/net/mac80211/regdomain.c
@@ -0,0 +1,158 @@
+/*
+ * Copyright 2002-2005, Instant802 Networks, Inc.
+ * Copyright 2005-2006, Devicescape Software, Inc.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+/*
+ * This regulatory domain control implementation is known to be incomplete
+ * and confusing. mac80211 regulatory domain control will be significantly
+ * reworked in the not-too-distant future.
+ *
+ * For now, drivers wishing to control which channels are and aren't available
+ * are advised as follows:
+ *  - set the IEEE80211_HW_DEFAULT_REG_DOMAIN_CONFIGURED flag
+ *  - continue to include *ALL* possible channels in the modes registered
+ *    through ieee80211_register_hwmode()
+ *  - for each allowable ieee80211_channel structure registered in the above
+ *    call, set the flag member to some meaningful value such as
+ *    IEEE80211_CHAN_W_SCAN | IEEE80211_CHAN_W_ACTIVE_SCAN |
+ *    IEEE80211_CHAN_W_IBSS.
+ *  - leave flag as 0 for non-allowable channels
+ *
+ * The usual implementation is for a driver to read a device EEPROM to
+ * determine which regulatory domain it should be operating under, then
+ * looking up the allowable channels in a driver-local table, then performing
+ * the above.
+ */
+
+#include <linux/module.h>
+#include <linux/netdevice.h>
+#include <net/mac80211.h>
+#include "ieee80211_i.h"
+
+static int ieee80211_regdom = 0x10; /* FCC */
+module_param(ieee80211_regdom, int, 0444);
+MODULE_PARM_DESC(ieee80211_regdom, "IEEE 802.11 regulatory domain; 64=MKK");
+
+/*
+ * If firmware is upgraded by the vendor, additional channels can be used based
+ * on the new Japanese regulatory rules. This is indicated by setting
+ * ieee80211_japan_5ghz module parameter to one when loading the 80211 kernel
+ * module.
+ */
+static int ieee80211_japan_5ghz /* = 0 */;
+module_param(ieee80211_japan_5ghz, int, 0444);
+MODULE_PARM_DESC(ieee80211_japan_5ghz, "Vendor-updated firmware for 5 GHz");
+
+
+struct ieee80211_channel_range {
+	short start_freq;
+	short end_freq;
+	unsigned char power_level;
+	unsigned char antenna_max;
+};
+
+static const struct ieee80211_channel_range ieee80211_fcc_channels[] = {
+	{ 2412, 2462, 27, 6 } /* IEEE 802.11b/g, channels 1..11 */,
+	{ 5180, 5240, 17, 6 } /* IEEE 802.11a, channels 36..48 */,
+	{ 5260, 5320, 23, 6 } /* IEEE 802.11a, channels 52..64 */,
+	{ 5745, 5825, 30, 6 } /* IEEE 802.11a, channels 149..165, outdoor */,
+	{ 0 }
+};
+
+static const struct ieee80211_channel_range ieee80211_mkk_channels[] = {
+	{ 2412, 2472, 20, 6 } /* IEEE 802.11b/g, channels 1..13 */,
+	{ 5170, 5240, 20, 6 } /* IEEE 802.11a, channels 34..48 */,
+	{ 5260, 5320, 20, 6 } /* IEEE 802.11a, channels 52..64 */,
+	{ 0 }
+};
+
+
+static const struct ieee80211_channel_range *channel_range =
+	ieee80211_fcc_channels;
+
+
+static void ieee80211_unmask_channel(int mode, struct ieee80211_channel *chan)
+{
+	int i;
+
+	chan->flag = 0;
+
+	if (ieee80211_regdom == 64 &&
+	    (mode == MODE_ATHEROS_TURBO || mode == MODE_ATHEROS_TURBOG)) {
+		/* Do not allow Turbo modes in Japan. */
+		return;
+	}
+
+	for (i = 0; channel_range[i].start_freq; i++) {
+		const struct ieee80211_channel_range *r = &channel_range[i];
+		if (r->start_freq <= chan->freq && r->end_freq >= chan->freq) {
+			if (ieee80211_regdom == 64 && !ieee80211_japan_5ghz &&
+			    chan->freq >= 5260 && chan->freq <= 5320) {
+				/*
+				 * Skip new channels in Japan since the
+				 * firmware was not marked having been upgraded
+				 * by the vendor.
+				 */
+				continue;
+			}
+
+			if (ieee80211_regdom == 0x10 &&
+			    (chan->freq == 5190 || chan->freq == 5210 ||
+			     chan->freq == 5230)) {
+				    /* Skip MKK channels when in FCC domain. */
+				    continue;
+			}
+
+			chan->flag |= IEEE80211_CHAN_W_SCAN |
+				IEEE80211_CHAN_W_ACTIVE_SCAN |
+				IEEE80211_CHAN_W_IBSS;
+			chan->power_level = r->power_level;
+			chan->antenna_max = r->antenna_max;
+
+			if (ieee80211_regdom == 64 &&
+			    (chan->freq == 5170 || chan->freq == 5190 ||
+			     chan->freq == 5210 || chan->freq == 5230)) {
+				/*
+				 * New regulatory rules in Japan have backwards
+				 * compatibility with old channels in 5.15-5.25
+				 * GHz band, but the station is not allowed to
+				 * use active scan on these old channels.
+				 */
+				chan->flag &= ~IEEE80211_CHAN_W_ACTIVE_SCAN;
+			}
+
+			if (ieee80211_regdom == 64 &&
+			    (chan->freq == 5260 || chan->freq == 5280 ||
+			     chan->freq == 5300 || chan->freq == 5320)) {
+				/*
+				 * IBSS is not allowed on 5.25-5.35 GHz band
+				 * due to radar detection requirements.
+				 */
+				chan->flag &= ~IEEE80211_CHAN_W_IBSS;
+			}
+
+			break;
+		}
+	}
+}
+
+
+void ieee80211_set_default_regdomain(struct ieee80211_hw_mode *mode)
+{
+	int c;
+	for (c = 0; c < mode->num_channels; c++)
+		ieee80211_unmask_channel(mode->mode, &mode->channels[c]);
+}
+
+
+void ieee80211_regdomain_init(void)
+{
+	if (ieee80211_regdom == 0x40)
+		channel_range = ieee80211_mkk_channels;
+}
+
diff --git a/net/netfilter/nf_conntrack_standalone.c b/net/netfilter/nf_conntrack_standalone.c
index fc847cc63be6..a4ce5e887997 100644
--- a/net/netfilter/nf_conntrack_standalone.c
+++ b/net/netfilter/nf_conntrack_standalone.c
@@ -181,7 +181,7 @@ static int ct_seq_show(struct seq_file *s, void *v)
 
 	if (seq_printf(s, "use=%u\n", atomic_read(&conntrack->ct_general.use)))
 		return -ENOSPC;
-	
+
 	return 0;
 }
 
diff --git a/net/netfilter/nf_log.c b/net/netfilter/nf_log.c
index 94985792b79a..d67c4fbf6031 100644
--- a/net/netfilter/nf_log.c
+++ b/net/netfilter/nf_log.c
@@ -9,7 +9,7 @@
 
 #include "nf_internals.h"
 
-/* Internal logging interface, which relies on the real 
+/* Internal logging interface, which relies on the real
    LOG target modules */
 
 #define NF_LOG_PREFIXLEN		128
diff --git a/net/netlink/af_netlink.c b/net/netlink/af_netlink.c
index 641cfbc278d8..5681ce3aebca 100644
--- a/net/netlink/af_netlink.c
+++ b/net/netlink/af_netlink.c
@@ -62,6 +62,7 @@
 #include <net/netlink.h>
 
 #define NLGRPSZ(x)	(ALIGN(x, sizeof(unsigned long) * 8) / 8)
+#define NLGRPLONGS(x)	(NLGRPSZ(x)/sizeof(unsigned long))
 
 struct netlink_sock {
 	/* struct sock has to be the first member of netlink_sock */
@@ -314,10 +315,12 @@ netlink_update_listeners(struct sock *sk)
 	unsigned long mask;
 	unsigned int i;
 
-	for (i = 0; i < NLGRPSZ(tbl->groups)/sizeof(unsigned long); i++) {
+	for (i = 0; i < NLGRPLONGS(tbl->groups); i++) {
 		mask = 0;
-		sk_for_each_bound(sk, node, &tbl->mc_list)
-			mask |= nlk_sk(sk)->groups[i];
+		sk_for_each_bound(sk, node, &tbl->mc_list) {
+			if (i < NLGRPLONGS(nlk_sk(sk)->ngroups))
+				mask |= nlk_sk(sk)->groups[i];
+		}
 		tbl->listeners[i] = mask;
 	}
 	/* this function is only called with the netlink table "grabbed", which
@@ -555,26 +558,37 @@ netlink_update_subscriptions(struct sock *sk, unsigned int subscriptions)
 	nlk->subscriptions = subscriptions;
 }
 
-static int netlink_alloc_groups(struct sock *sk)
+static int netlink_realloc_groups(struct sock *sk)
 {
 	struct netlink_sock *nlk = nlk_sk(sk);
 	unsigned int groups;
+	unsigned long *new_groups;
 	int err = 0;
 
-	netlink_lock_table();
+	netlink_table_grab();
+
 	groups = nl_table[sk->sk_protocol].groups;
-	if (!nl_table[sk->sk_protocol].registered)
+	if (!nl_table[sk->sk_protocol].registered) {
 		err = -ENOENT;
-	netlink_unlock_table();
+		goto out_unlock;
+	}
 
-	if (err)
-		return err;
+	if (nlk->ngroups >= groups)
+		goto out_unlock;
 
-	nlk->groups = kzalloc(NLGRPSZ(groups), GFP_KERNEL);
-	if (nlk->groups == NULL)
-		return -ENOMEM;
+	new_groups = krealloc(nlk->groups, NLGRPSZ(groups), GFP_ATOMIC);
+	if (new_groups == NULL) {
+		err = -ENOMEM;
+		goto out_unlock;
+	}
+	memset((char*)new_groups + NLGRPSZ(nlk->ngroups), 0,
+	       NLGRPSZ(groups) - NLGRPSZ(nlk->ngroups));
+
+	nlk->groups = new_groups;
 	nlk->ngroups = groups;
-	return 0;
+ out_unlock:
+	netlink_table_ungrab();
+	return err;
 }
 
 static int netlink_bind(struct socket *sock, struct sockaddr *addr, int addr_len)
@@ -591,11 +605,9 @@ static int netlink_bind(struct socket *sock, struct sockaddr *addr, int addr_len
 	if (nladdr->nl_groups) {
 		if (!netlink_capable(sock, NL_NONROOT_RECV))
 			return -EPERM;
-		if (nlk->groups == NULL) {
-			err = netlink_alloc_groups(sk);
-			if (err)
-				return err;
-		}
+		err = netlink_realloc_groups(sk);
+		if (err)
+			return err;
 	}
 
 	if (nlk->pid) {
@@ -839,10 +851,18 @@ retry:
 int netlink_has_listeners(struct sock *sk, unsigned int group)
 {
 	int res = 0;
+	unsigned long *listeners;
 
 	BUG_ON(!(nlk_sk(sk)->flags & NETLINK_KERNEL_SOCKET));
+
+	rcu_read_lock();
+	listeners = rcu_dereference(nl_table[sk->sk_protocol].listeners);
+
 	if (group - 1 < nl_table[sk->sk_protocol].groups)
-		res = test_bit(group - 1, nl_table[sk->sk_protocol].listeners);
+		res = test_bit(group - 1, listeners);
+
+	rcu_read_unlock();
+
 	return res;
 }
 EXPORT_SYMBOL_GPL(netlink_has_listeners);
@@ -1007,6 +1027,23 @@ void netlink_set_err(struct sock *ssk, u32 pid, u32 group, int code)
 	read_unlock(&nl_table_lock);
 }
 
+/* must be called with netlink table grabbed */
+static void netlink_update_socket_mc(struct netlink_sock *nlk,
+				     unsigned int group,
+				     int is_new)
+{
+	int old, new = !!is_new, subscriptions;
+
+	old = test_bit(group - 1, nlk->groups);
+	subscriptions = nlk->subscriptions - old + new;
+	if (new)
+		__set_bit(group - 1, nlk->groups);
+	else
+		__clear_bit(group - 1, nlk->groups);
+	netlink_update_subscriptions(&nlk->sk, subscriptions);
+	netlink_update_listeners(&nlk->sk);
+}
+
 static int netlink_setsockopt(struct socket *sock, int level, int optname,
 			      char __user *optval, int optlen)
 {
@@ -1032,27 +1069,16 @@ static int netlink_setsockopt(struct socket *sock, int level, int optname,
 		break;
 	case NETLINK_ADD_MEMBERSHIP:
 	case NETLINK_DROP_MEMBERSHIP: {
-		unsigned int subscriptions;
-		int old, new = optname == NETLINK_ADD_MEMBERSHIP ? 1 : 0;
-
 		if (!netlink_capable(sock, NL_NONROOT_RECV))
 			return -EPERM;
-		if (nlk->groups == NULL) {
-			err = netlink_alloc_groups(sk);
-			if (err)
-				return err;
-		}
+		err = netlink_realloc_groups(sk);
+		if (err)
+			return err;
 		if (!val || val - 1 >= nlk->ngroups)
 			return -EINVAL;
 		netlink_table_grab();
-		old = test_bit(val - 1, nlk->groups);
-		subscriptions = nlk->subscriptions - old + new;
-		if (new)
-			__set_bit(val - 1, nlk->groups);
-		else
-			__clear_bit(val - 1, nlk->groups);
-		netlink_update_subscriptions(sk, subscriptions);
-		netlink_update_listeners(sk);
+		netlink_update_socket_mc(nlk, val,
+					 optname == NETLINK_ADD_MEMBERSHIP);
 		netlink_table_ungrab();
 		err = 0;
 		break;
@@ -1328,6 +1354,71 @@ out_sock_release:
 	return NULL;
 }
 
+/**
+ * netlink_change_ngroups - change number of multicast groups
+ *
+ * This changes the number of multicast groups that are available
+ * on a certain netlink family. Note that it is not possible to
+ * change the number of groups to below 32. Also note that it does
+ * not implicitly call netlink_clear_multicast_users() when the
+ * number of groups is reduced.
+ *
+ * @sk: The kernel netlink socket, as returned by netlink_kernel_create().
+ * @groups: The new number of groups.
+ */
+int netlink_change_ngroups(struct sock *sk, unsigned int groups)
+{
+	unsigned long *listeners, *old = NULL;
+	struct netlink_table *tbl = &nl_table[sk->sk_protocol];
+	int err = 0;
+
+	if (groups < 32)
+		groups = 32;
+
+	netlink_table_grab();
+	if (NLGRPSZ(tbl->groups) < NLGRPSZ(groups)) {
+		listeners = kzalloc(NLGRPSZ(groups), GFP_ATOMIC);
+		if (!listeners) {
+			err = -ENOMEM;
+			goto out_ungrab;
+		}
+		old = tbl->listeners;
+		memcpy(listeners, old, NLGRPSZ(tbl->groups));
+		rcu_assign_pointer(tbl->listeners, listeners);
+	}
+	tbl->groups = groups;
+
+ out_ungrab:
+	netlink_table_ungrab();
+	synchronize_rcu();
+	kfree(old);
+	return err;
+}
+EXPORT_SYMBOL(netlink_change_ngroups);
+
+/**
+ * netlink_clear_multicast_users - kick off multicast listeners
+ *
+ * This function removes all listeners from the given group.
+ * @ksk: The kernel netlink socket, as returned by
+ *	netlink_kernel_create().
+ * @group: The multicast group to clear.
+ */
+void netlink_clear_multicast_users(struct sock *ksk, unsigned int group)
+{
+	struct sock *sk;
+	struct hlist_node *node;
+	struct netlink_table *tbl = &nl_table[ksk->sk_protocol];
+
+	netlink_table_grab();
+
+	sk_for_each_bound(sk, node, &tbl->mc_list)
+		netlink_update_socket_mc(nlk_sk(sk), group, 0);
+
+	netlink_table_ungrab();
+}
+EXPORT_SYMBOL(netlink_clear_multicast_users);
+
 void netlink_set_nonroot(int protocol, unsigned int flags)
 {
 	if ((unsigned int)protocol < MAX_LINKS)
diff --git a/net/netlink/genetlink.c b/net/netlink/genetlink.c
index b9ab62f938d0..e146531faf1d 100644
--- a/net/netlink/genetlink.c
+++ b/net/netlink/genetlink.c
@@ -3,6 +3,7 @@
  *
  * 		Authors:	Jamal Hadi Salim
  * 				Thomas Graf <tgraf@suug.ch>
+ *				Johannes Berg <johannes@sipsolutions.net>
  */
 
 #include <linux/module.h>
@@ -13,6 +14,7 @@
 #include <linux/string.h>
 #include <linux/skbuff.h>
 #include <linux/mutex.h>
+#include <linux/bitmap.h>
 #include <net/sock.h>
 #include <net/genetlink.h>
 
@@ -42,6 +44,16 @@ static void genl_unlock(void)
 #define GENL_FAM_TAB_MASK	(GENL_FAM_TAB_SIZE - 1)
 
 static struct list_head family_ht[GENL_FAM_TAB_SIZE];
+/*
+ * Bitmap of multicast groups that are currently in use.
+ *
+ * To avoid an allocation at boot of just one unsigned long,
+ * declare it global instead.
+ * Bit 0 is marked as already used since group 0 is invalid.
+ */
+static unsigned long mc_group_start = 0x1;
+static unsigned long *mc_groups = &mc_group_start;
+static unsigned long mc_groups_longs = 1;
 
 static int genl_ctrl_event(int event, void *data);
 
@@ -116,6 +128,114 @@ static inline u16 genl_generate_id(void)
 	return id_gen_idx;
 }
 
+static struct genl_multicast_group notify_grp;
+
+/**
+ * genl_register_mc_group - register a multicast group
+ *
+ * Registers the specified multicast group and notifies userspace
+ * about the new group.
+ *
+ * Returns 0 on success or a negative error code.
+ *
+ * @family: The generic netlink family the group shall be registered for.
+ * @grp: The group to register, must have a name.
+ */
+int genl_register_mc_group(struct genl_family *family,
+			   struct genl_multicast_group *grp)
+{
+	int id;
+	unsigned long *new_groups;
+	int err;
+
+	BUG_ON(grp->name[0] == '\0');
+
+	genl_lock();
+
+	/* special-case our own group */
+	if (grp == &notify_grp)
+		id = GENL_ID_CTRL;
+	else
+		id = find_first_zero_bit(mc_groups,
+					 mc_groups_longs * BITS_PER_LONG);
+
+
+	if (id >= mc_groups_longs * BITS_PER_LONG) {
+		size_t nlen = (mc_groups_longs + 1) * sizeof(unsigned long);
+
+		if (mc_groups == &mc_group_start) {
+			new_groups = kzalloc(nlen, GFP_KERNEL);
+			if (!new_groups) {
+				err = -ENOMEM;
+				goto out;
+			}
+			mc_groups = new_groups;
+			*mc_groups = mc_group_start;
+		} else {
+			new_groups = krealloc(mc_groups, nlen, GFP_KERNEL);
+			if (!new_groups) {
+				err = -ENOMEM;
+				goto out;
+			}
+			mc_groups = new_groups;
+			mc_groups[mc_groups_longs] = 0;
+		}
+		mc_groups_longs++;
+	}
+
+	err = netlink_change_ngroups(genl_sock,
+				     sizeof(unsigned long) * NETLINK_GENERIC);
+	if (err)
+		goto out;
+
+	grp->id = id;
+	set_bit(id, mc_groups);
+	list_add_tail(&grp->list, &family->mcast_groups);
+	grp->family = family;
+
+	genl_ctrl_event(CTRL_CMD_NEWMCAST_GRP, grp);
+ out:
+	genl_unlock();
+	return 0;
+}
+EXPORT_SYMBOL(genl_register_mc_group);
+
+/**
+ * genl_unregister_mc_group - unregister a multicast group
+ *
+ * Unregisters the specified multicast group and notifies userspace
+ * about it. All current listeners on the group are removed.
+ *
+ * Note: It is not necessary to unregister all multicast groups before
+ *       unregistering the family, unregistering the family will cause
+ *       all assigned multicast groups to be unregistered automatically.
+ *
+ * @family: Generic netlink family the group belongs to.
+ * @grp: The group to unregister, must have been registered successfully
+ *	 previously.
+ */
+void genl_unregister_mc_group(struct genl_family *family,
+			      struct genl_multicast_group *grp)
+{
+	BUG_ON(grp->family != family);
+	genl_lock();
+	netlink_clear_multicast_users(genl_sock, grp->id);
+	clear_bit(grp->id, mc_groups);
+	list_del(&grp->list);
+	genl_ctrl_event(CTRL_CMD_DELMCAST_GRP, grp);
+	grp->id = 0;
+	grp->family = NULL;
+	genl_unlock();
+}
+
+static void genl_unregister_mc_groups(struct genl_family *family)
+{
+	struct genl_multicast_group *grp, *tmp;
+
+	list_for_each_entry_safe(grp, tmp, &family->mcast_groups, list)
+		genl_unregister_mc_group(family, grp);
+}
+
 /**
  * genl_register_ops - register generic netlink operations
  * @family: generic netlink family
@@ -216,6 +336,7 @@ int genl_register_family(struct genl_family *family)
 		goto errout;
 
 	INIT_LIST_HEAD(&family->ops_list);
+	INIT_LIST_HEAD(&family->mcast_groups);
 
 	genl_lock();
 
@@ -275,6 +396,8 @@ int genl_unregister_family(struct genl_family *family)
 {
 	struct genl_family *rc;
 
+	genl_unregister_mc_groups(family);
+
 	genl_lock();
 
 	list_for_each_entry(rc, genl_family_chain(family->id), family_list) {
@@ -410,6 +533,67 @@ static int ctrl_fill_info(struct genl_family *family, u32 pid, u32 seq,
 		nla_nest_end(skb, nla_ops);
 	}
 
+	if (!list_empty(&family->mcast_groups)) {
+		struct genl_multicast_group *grp;
+		struct nlattr *nla_grps;
+		int idx = 1;
+
+		nla_grps = nla_nest_start(skb, CTRL_ATTR_MCAST_GROUPS);
+		if (nla_grps == NULL)
+			goto nla_put_failure;
+
+		list_for_each_entry(grp, &family->mcast_groups, list) {
+			struct nlattr *nest;
+
+			nest = nla_nest_start(skb, idx++);
+			if (nest == NULL)
+				goto nla_put_failure;
+
+			NLA_PUT_U32(skb, CTRL_ATTR_MCAST_GRP_ID, grp->id);
+			NLA_PUT_STRING(skb, CTRL_ATTR_MCAST_GRP_NAME,
+				       grp->name);
+
+			nla_nest_end(skb, nest);
+		}
+		nla_nest_end(skb, nla_grps);
+	}
+
+	return genlmsg_end(skb, hdr);
+
+nla_put_failure:
+	return genlmsg_cancel(skb, hdr);
+}
+
+static int ctrl_fill_mcgrp_info(struct genl_multicast_group *grp, u32 pid,
+				u32 seq, u32 flags, struct sk_buff *skb,
+				u8 cmd)
+{
+	void *hdr;
+	struct nlattr *nla_grps;
+	struct nlattr *nest;
+
+	hdr = genlmsg_put(skb, pid, seq, &genl_ctrl, flags, cmd);
+	if (hdr == NULL)
+		return -1;
+
+	NLA_PUT_STRING(skb, CTRL_ATTR_FAMILY_NAME, grp->family->name);
+	NLA_PUT_U16(skb, CTRL_ATTR_FAMILY_ID, grp->family->id);
+
+	nla_grps = nla_nest_start(skb, CTRL_ATTR_MCAST_GROUPS);
+	if (nla_grps == NULL)
+		goto nla_put_failure;
+
+	nest = nla_nest_start(skb, 1);
+	if (nest == NULL)
+		goto nla_put_failure;
+
+	NLA_PUT_U32(skb, CTRL_ATTR_MCAST_GRP_ID, grp->id);
+	NLA_PUT_STRING(skb, CTRL_ATTR_MCAST_GRP_NAME,
+		       grp->name);
+
+	nla_nest_end(skb, nest);
+	nla_nest_end(skb, nla_grps);
+
 	return genlmsg_end(skb, hdr);
 
 nla_put_failure:
@@ -453,8 +637,8 @@ errout:
 	return skb->len;
 }
 
-static struct sk_buff *ctrl_build_msg(struct genl_family *family, u32 pid,
-				      int seq, u8 cmd)
+static struct sk_buff *ctrl_build_family_msg(struct genl_family *family,
+					     u32 pid, int seq, u8 cmd)
 {
 	struct sk_buff *skb;
 	int err;
@@ -472,6 +656,25 @@ static struct sk_buff *ctrl_build_msg(struct genl_family *family, u32 pid,
 	return skb;
 }
 
+static struct sk_buff *ctrl_build_mcgrp_msg(struct genl_multicast_group *grp,
+					    u32 pid, int seq, u8 cmd)
+{
+	struct sk_buff *skb;
+	int err;
+
+	skb = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
+	if (skb == NULL)
+		return ERR_PTR(-ENOBUFS);
+
+	err = ctrl_fill_mcgrp_info(grp, pid, seq, 0, skb, cmd);
+	if (err < 0) {
+		nlmsg_free(skb);
+		return ERR_PTR(err);
+	}
+
+	return skb;
+}
+
 static const struct nla_policy ctrl_policy[CTRL_ATTR_MAX+1] = {
 	[CTRL_ATTR_FAMILY_ID]	= { .type = NLA_U16 },
 	[CTRL_ATTR_FAMILY_NAME]	= { .type = NLA_NUL_STRING,
@@ -501,8 +704,8 @@ static int ctrl_getfamily(struct sk_buff *skb, struct genl_info *info)
 		goto errout;
 	}
 
-	msg = ctrl_build_msg(res, info->snd_pid, info->snd_seq,
-			     CTRL_CMD_NEWFAMILY);
+	msg = ctrl_build_family_msg(res, info->snd_pid, info->snd_seq,
+				    CTRL_CMD_NEWFAMILY);
 	if (IS_ERR(msg)) {
 		err = PTR_ERR(msg);
 		goto errout;
@@ -523,7 +726,15 @@ static int genl_ctrl_event(int event, void *data)
 	switch (event) {
 	case CTRL_CMD_NEWFAMILY:
 	case CTRL_CMD_DELFAMILY:
-		msg = ctrl_build_msg(data, 0, 0, event);
+		msg = ctrl_build_family_msg(data, 0, 0, event);
+		if (IS_ERR(msg))
+			return PTR_ERR(msg);
+
+		genlmsg_multicast(msg, 0, GENL_ID_CTRL, GFP_KERNEL);
+		break;
+	case CTRL_CMD_NEWMCAST_GRP:
+	case CTRL_CMD_DELMCAST_GRP:
+		msg = ctrl_build_mcgrp_msg(data, 0, 0, event);
 		if (IS_ERR(msg))
 			return PTR_ERR(msg);
 
@@ -541,6 +752,10 @@ static struct genl_ops genl_ctrl_ops = {
 	.policy		= ctrl_policy,
 };
 
+static struct genl_multicast_group notify_grp = {
+	.name		= "notify",
+};
+
 static int __init genl_init(void)
 {
 	int i, err;
@@ -557,11 +772,17 @@ static int __init genl_init(void)
 		goto errout_register;
 
 	netlink_set_nonroot(NETLINK_GENERIC, NL_NONROOT_RECV);
-	genl_sock = netlink_kernel_create(NETLINK_GENERIC, GENL_MAX_ID,
-					  genl_rcv, NULL, THIS_MODULE);
+
+	/* we'll bump the group number right afterwards */
+	genl_sock = netlink_kernel_create(NETLINK_GENERIC, 0, genl_rcv,
+					  NULL, THIS_MODULE);
 	if (genl_sock == NULL)
 		panic("GENL: Cannot initialize generic netlink\n");
 
+	err = genl_register_mc_group(&genl_ctrl, &notify_grp);
+	if (err < 0)
+		goto errout_register;
+
 	return 0;
 
 errout_register:
diff --git a/net/netrom/af_netrom.c b/net/netrom/af_netrom.c
index 5d66490dd290..dc9273295a38 100644
--- a/net/netrom/af_netrom.c
+++ b/net/netrom/af_netrom.c
@@ -720,7 +720,7 @@ static int nr_connect(struct socket *sock, struct sockaddr *uaddr,
 
 		for (;;) {
 			prepare_to_wait(sk->sk_sleep, &wait,
-			                TASK_INTERRUPTIBLE);
+					TASK_INTERRUPTIBLE);
 			if (sk->sk_state != TCP_SYN_SENT)
 				break;
 			if (!signal_pending(current)) {
diff --git a/net/packet/af_packet.c b/net/packet/af_packet.c
index 7c27bd389b7e..1322d62b5d97 100644
--- a/net/packet/af_packet.c
+++ b/net/packet/af_packet.c
@@ -108,7 +108,7 @@ Outgoing, dev->hard_header!=NULL
 Incoming, dev->hard_header==NULL
    mac_header -> UNKNOWN position. It is very likely, that it points to ll
 		 header.  PPP makes it, that is wrong, because introduce
-                 assymetry between rx and tx paths.
+		 assymetry between rx and tx paths.
    data       -> data
 
 Outgoing, dev->hard_header==NULL
diff --git a/net/rfkill/rfkill-input.c b/net/rfkill/rfkill-input.c
index 230e35c59786..9f746be58854 100644
--- a/net/rfkill/rfkill-input.c
+++ b/net/rfkill/rfkill-input.c
@@ -83,7 +83,7 @@ static DEFINE_RFKILL_TASK(rfkill_wlan, RFKILL_TYPE_WLAN);
 static DEFINE_RFKILL_TASK(rfkill_bt, RFKILL_TYPE_BLUETOOTH);
 
 static void rfkill_event(struct input_handle *handle, unsigned int type,
-		        unsigned int code, int down)
+			unsigned int code, int down)
 {
 	if (type == EV_KEY && down == 1) {
 		switch (code) {
diff --git a/net/rfkill/rfkill.c b/net/rfkill/rfkill.c
index f3986d498b40..db3395bfbcfa 100644
--- a/net/rfkill/rfkill.c
+++ b/net/rfkill/rfkill.c
@@ -187,7 +187,7 @@ static ssize_t rfkill_claim_store(struct device *dev,
 static struct device_attribute rfkill_dev_attrs[] = {
 	__ATTR(name, S_IRUGO, rfkill_name_show, NULL),
 	__ATTR(type, S_IRUGO, rfkill_type_show, NULL),
-	__ATTR(state, S_IRUGO, rfkill_state_show, rfkill_state_store),
+	__ATTR(state, S_IRUGO|S_IWUSR, rfkill_state_show, rfkill_state_store),
 	__ATTR(claim, S_IRUGO|S_IWUSR, rfkill_claim_show, rfkill_claim_store),
 	__ATTR_NULL
 };
diff --git a/net/rose/af_rose.c b/net/rose/af_rose.c
index f4d3aba00800..976c3cc86a29 100644
--- a/net/rose/af_rose.c
+++ b/net/rose/af_rose.c
@@ -816,7 +816,7 @@ rose_try_next_neigh:
 
 		for (;;) {
 			prepare_to_wait(sk->sk_sleep, &wait,
-			                TASK_INTERRUPTIBLE);
+					TASK_INTERRUPTIBLE);
 			if (sk->sk_state != TCP_SYN_SENT)
 				break;
 			if (!signal_pending(current)) {
diff --git a/net/rxrpc/af_rxrpc.c b/net/rxrpc/af_rxrpc.c
index 2c57df9c131b..46f6d572ad2d 100644
--- a/net/rxrpc/af_rxrpc.c
+++ b/net/rxrpc/af_rxrpc.c
@@ -805,26 +805,26 @@ static int __init af_rxrpc_init(void)
 	}
 
 	ret = proto_register(&rxrpc_proto, 1);
-        if (ret < 0) {
-                printk(KERN_CRIT "RxRPC: Cannot register protocol\n");
+	if (ret < 0) {
+		printk(KERN_CRIT "RxRPC: Cannot register protocol\n");
 		goto error_proto;
 	}
 
 	ret = sock_register(&rxrpc_family_ops);
 	if (ret < 0) {
-                printk(KERN_CRIT "RxRPC: Cannot register socket family\n");
+		printk(KERN_CRIT "RxRPC: Cannot register socket family\n");
 		goto error_sock;
 	}
 
 	ret = register_key_type(&key_type_rxrpc);
 	if (ret < 0) {
-                printk(KERN_CRIT "RxRPC: Cannot register client key type\n");
+		printk(KERN_CRIT "RxRPC: Cannot register client key type\n");
 		goto error_key_type;
 	}
 
 	ret = register_key_type(&key_type_rxrpc_s);
 	if (ret < 0) {
-                printk(KERN_CRIT "RxRPC: Cannot register server key type\n");
+		printk(KERN_CRIT "RxRPC: Cannot register server key type\n");
 		goto error_key_type_s;
 	}
 
diff --git a/net/sctp/sm_statefuns.c b/net/sctp/sm_statefuns.c
index f02ce3dddb7b..fd2dfdd7d7fd 100644
--- a/net/sctp/sm_statefuns.c
+++ b/net/sctp/sm_statefuns.c
@@ -1779,7 +1779,7 @@ static sctp_disposition_t sctp_sf_do_dupcook_d(const struct sctp_endpoint *ep,
 					     SCTP_COMM_UP, 0,
 					     asoc->c.sinit_num_ostreams,
 					     asoc->c.sinit_max_instreams,
-                                             NULL, GFP_ATOMIC);
+					     NULL, GFP_ATOMIC);
 		if (!ev)
 			goto nomem;
 
diff --git a/net/sctp/socket.c b/net/sctp/socket.c
index b1917f68723c..ee88f2ea5101 100644
--- a/net/sctp/socket.c
+++ b/net/sctp/socket.c
@@ -4803,7 +4803,7 @@ static int sctp_getsockopt_partial_delivery_point(struct sock *sk, int len,
 						  char __user *optval,
 						  int __user *optlen)
 {
-        u32 val;
+	u32 val;
 
 	if (len < sizeof(u32))
 		return -EINVAL;
@@ -4827,7 +4827,7 @@ static int sctp_getsockopt_maxburst(struct sock *sk, int len,
 				    char __user *optval,
 				    int __user *optlen)
 {
-        int val;
+	int val;
 
 	if (len < sizeof(int))
 		return -EINVAL;
diff --git a/net/sunrpc/auth_gss/gss_krb5_crypto.c b/net/sunrpc/auth_gss/gss_krb5_crypto.c
index f441aa0b26dc..bfb6a29633dd 100644
--- a/net/sunrpc/auth_gss/gss_krb5_crypto.c
+++ b/net/sunrpc/auth_gss/gss_krb5_crypto.c
@@ -67,7 +67,7 @@ krb5_encrypt(
 
 	if (crypto_blkcipher_ivsize(tfm) > 16) {
 		dprintk("RPC:       gss_k5encrypt: tfm iv size to large %d\n",
-		         crypto_blkcipher_ivsize(tfm));
+			 crypto_blkcipher_ivsize(tfm));
 		goto out;
 	}
 
diff --git a/net/tipc/socket.c b/net/tipc/socket.c
index 4a8f37f48764..84110172031e 100644
--- a/net/tipc/socket.c
+++ b/net/tipc/socket.c
@@ -1629,8 +1629,8 @@ static struct proto_ops msg_ops = {
 	.getsockopt	= getsockopt,
 	.sendmsg	= send_msg,
 	.recvmsg	= recv_msg,
-        .mmap		= sock_no_mmap,
-        .sendpage	= sock_no_sendpage
+	.mmap		= sock_no_mmap,
+	.sendpage	= sock_no_sendpage
 };
 
 static struct proto_ops packet_ops = {
@@ -1650,8 +1650,8 @@ static struct proto_ops packet_ops = {
 	.getsockopt	= getsockopt,
 	.sendmsg	= send_packet,
 	.recvmsg	= recv_msg,
-        .mmap		= sock_no_mmap,
-        .sendpage	= sock_no_sendpage
+	.mmap		= sock_no_mmap,
+	.sendpage	= sock_no_sendpage
 };
 
 static struct proto_ops stream_ops = {
@@ -1671,8 +1671,8 @@ static struct proto_ops stream_ops = {
 	.getsockopt	= getsockopt,
 	.sendmsg	= send_stream,
 	.recvmsg	= recv_stream,
-        .mmap		= sock_no_mmap,
-        .sendpage	= sock_no_sendpage
+	.mmap		= sock_no_mmap,
+	.sendpage	= sock_no_sendpage
 };
 
 static struct net_proto_family tipc_family_ops = {
diff --git a/net/xfrm/xfrm_policy.c b/net/xfrm/xfrm_policy.c
index b48f06fc9fd9..cfaf17c8851e 100644
--- a/net/xfrm/xfrm_policy.c
+++ b/net/xfrm/xfrm_policy.c
@@ -857,7 +857,7 @@ xfrm_policy_flush_secctx_check(u8 type, struct xfrm_audit *audit_info)
 					       pol, NULL);
 				return err;
 			}
-                }
+		}
 		for (i = xfrm_policy_bydst[dir].hmask; i >= 0; i--) {
 			hlist_for_each_entry(pol, entry,
 					     xfrm_policy_bydst[dir].table + i,
diff --git a/net/xfrm/xfrm_state.c b/net/xfrm/xfrm_state.c
index e070c3f938fb..38f90ca75b1e 100644
--- a/net/xfrm/xfrm_state.c
+++ b/net/xfrm/xfrm_state.c
@@ -407,7 +407,7 @@ xfrm_state_flush_secctx_check(u8 proto, struct xfrm_audit *audit_info)
 				xfrm_audit_log(audit_info->loginuid,
 					       audit_info->secid,
 					       AUDIT_MAC_IPSEC_DELSA,
-                                               0, NULL, x);
+					       0, NULL, x);
 
 				return err;
 			}