Merge delerium.codemonkey.org.uk:/mnt/nfs/sepia/bar/src/kernel/2.6/trees/bk-linus

into delerium.codemonkey.org.uk:/mnt/nfs/sepia/bar/src/kernel/2.6/trees/agpgart

Makefile

 VERSION = 2
 PATCHLEVEL = 6
 SUBLEVEL = 0
-EXTRAVERSION = -test10
+EXTRAVERSION = -test11
 
 # *DOCUMENTATION*
 # To see a list of typical targets execute "make help"

arch/ia64/kernel/unwind.c

@@ -1910,7 +1910,7 @@ unw_unwind_to_user (struct unw_frame_info *info)
 				   __FUNCTION__, ip);
 			return -1;
 		}
-		if (ip < GATE_ADDR)
+		if (ip < FIXADDR_USER_END)
 			return 0;
 	}
 	unw_get_ip(info, &ip);

arch/sparc/kernel/time.c

@@ -472,6 +472,15 @@ extern __inline__ unsigned long do_gettimeoffset(void)
 	return (*master_l10_counter >> 10) & 0x1fffff;
 }
 
+/*
+ * Returns nanoseconds
+ * XXX This is a suboptimal implementation.
+ */
+unsigned long long sched_clock(void)
+{
+	return (unsigned long long)jiffies * (1000000000 / HZ);
+}
+
 /* Ok, my cute asm atomicity trick doesn't work anymore.
  * There are just too many variables that need to be protected
  * now (both members of xtime, wall_jiffies, et al.)

drivers/ieee1394/csr.c

@@ -202,6 +202,7 @@ static int read_maps(struct hpsb_host *host, int nodeid, quadlet_t *buffer,
 
         if (csraddr < CSR_TOPOLOGY_MAP) {
                 if (csraddr + length > CSR_CONFIG_ROM + host->csr.rom_size) {
+                        spin_unlock_irqrestore(&host->csr.lock, flags);
                         return RCODE_ADDRESS_ERROR;
                 }
                 src = ((char *)host->csr.rom) + csraddr - CSR_CONFIG_ROM;

drivers/ieee1394/highlevel.c

@@ -98,7 +98,7 @@ void *hpsb_create_hostinfo(struct hpsb_highlevel *hl, struct hpsb_host *host,
 		return NULL;
 	}
 
-	hi = kmalloc(sizeof(*hi) + data_size, GFP_KERNEL);
+	hi = kmalloc(sizeof(*hi) + data_size, GFP_ATOMIC);
 	if (!hi)
 		return NULL;
 

drivers/ieee1394/hosts.c

@@ -92,7 +92,7 @@ void hpsb_unref_host(struct hpsb_host *host)
 
 	down(&hpsb_hosts_lock);
         if (atomic_dec_and_test(&host->refcount) && host->is_shutdown)
-                kfree(host);
+		device_unregister(&host->device);
 	up(&hpsb_hosts_lock);
 }
 

drivers/ieee1394/ieee1394_transactions.c

@@ -137,7 +137,7 @@ int hpsb_get_tlabel(struct hpsb_packet *packet)
 
 	tp = &packet->host->tpool[packet->node_id & NODE_MASK];
 
-	if (in_interrupt() || in_atomic()) {
+	if (irqs_disabled() || in_atomic()) {
 		if (down_trylock(&tp->count))
 			return 1;
 	} else {

drivers/ieee1394/ieee1394_types.h

@@ -13,9 +13,6 @@
 #include <asm/byteorder.h>
 
 
-/* The great kdev_t changeover in 2.5.x */
-#include <linux/kdev_t.h>
-
 /* Transaction Label handling */
 struct hpsb_tlabel_pool {
 	DECLARE_BITMAP(pool, 64);

drivers/ieee1394/nodemgr.c

@@ -420,6 +420,12 @@ static void nodemgr_release_ne(struct device *dev)
 }
 
 
+static void nodemgr_release_host(struct device *dev)
+{
+	kfree(container_of(dev, struct hpsb_host, device));
+}
+
+
 static void nodemgr_remove_ud(struct unit_directory *ud)
 {
 	struct device *dev = &ud->device;
@@ -513,6 +519,7 @@ static struct device nodemgr_dev_template_ne = {
 
 static struct device nodemgr_dev_template_host = {
 	.bus		= &ieee1394_bus_type,
+	.release	= nodemgr_release_host,
 	.driver		= &nodemgr_driver_host,
 	.driver_data	= &nodemgr_driverdata_host,
 };
@@ -676,8 +683,27 @@ static struct node_entry *nodemgr_scan_root_directory
 }
 
 
-static void nodemgr_process_config_rom(struct host_info *hi,
-		struct node_entry *ne, quadlet_t busoptions);
+static void nodemgr_update_bus_options(struct node_entry *ne,
+                                       quadlet_t busoptions)
+{
+	ne->busopt.irmc         = (busoptions >> 31) & 1;
+	ne->busopt.cmc          = (busoptions >> 30) & 1;
+	ne->busopt.isc          = (busoptions >> 29) & 1;
+	ne->busopt.bmc          = (busoptions >> 28) & 1;
+	ne->busopt.pmc          = (busoptions >> 27) & 1;
+	ne->busopt.cyc_clk_acc  = (busoptions >> 16) & 0xff;
+	ne->busopt.max_rec      = 1 << (((busoptions >> 12) & 0xf) + 1);
+	ne->busopt.generation   = (busoptions >> 4) & 0xf;
+	ne->busopt.lnkspd       = busoptions & 0x7;
+	
+	HPSB_VERBOSE("NodeMgr: raw=0x%08x irmc=%d cmc=%d isc=%d bmc=%d pmc=%d "
+		     "cyc_clk_acc=%d max_rec=%d gen=%d lspd=%d",
+		     busoptions, ne->busopt.irmc, ne->busopt.cmc,
+		     ne->busopt.isc, ne->busopt.bmc, ne->busopt.pmc,
+		     ne->busopt.cyc_clk_acc, ne->busopt.max_rec,
+		     ne->busopt.generation, ne->busopt.lnkspd);
+}
+
 
 static struct node_entry *nodemgr_create_node(octlet_t guid, quadlet_t busoptions,
 					      struct host_info *hi, nodeid_t nodeid,
@@ -694,6 +720,7 @@ static struct node_entry *nodemgr_create_node(octlet_t guid, quadlet_t busoption
         ne->host = host;
         ne->nodeid = nodeid;
 	ne->generation = generation;
+	ne->needs_probe = 1;
 
         ne->guid = guid;
 	ne->guid_vendor_id = (guid >> 40) & 0xffffff;
@@ -711,7 +738,7 @@ static struct node_entry *nodemgr_create_node(octlet_t guid, quadlet_t busoption
 		device_create_file(&ne->device, &dev_attr_ne_guid_vendor_oui);
 	nodemgr_create_ne_dev_files(ne);
 
-	nodemgr_process_config_rom (hi, ne, busoptions);
+	nodemgr_update_bus_options(ne, busoptions);
 
 	HPSB_DEBUG("%s added: ID:BUS[" NODE_BUS_FMT "]  GUID[%016Lx]",
 		   (host->node_id == nodeid) ? "Host" : "Node",
@@ -806,6 +833,7 @@ static struct unit_directory *nodemgr_scan_unit_directory
 
 	if (nodemgr_read_quadlet(ne->host, ne->nodeid, ne->generation, address, &quad))
 		return NULL;
+
 	length = CONFIG_ROM_DIRECTORY_LENGTH(quad) ;
 	address += 4;
 
@@ -1055,7 +1083,7 @@ static struct unit_directory *nodemgr_process_unit_directory
 
 	return ud;
 
-unit_directory_error:	
+unit_directory_error:
 	if (ud != NULL)
 		kfree(ud);
 	return NULL;
@@ -1069,6 +1097,8 @@ static void nodemgr_process_root_directory(struct host_info *hi, struct node_ent
 	int length;
 	unsigned int ud_id = 0;
 
+	device_remove_file(&ne->device, &dev_attr_ne_vendor_oui);
+
 	address = CSR_REGISTER_BASE + CSR_CONFIG_ROM;
 	
 	if (nodemgr_read_quadlet(ne->host, ne->nodeid, ne->generation,
@@ -1129,6 +1159,9 @@ static void nodemgr_process_root_directory(struct host_info *hi, struct node_ent
 			break;
 		}
 	}
+
+	if (ne->vendor_oui)
+		device_create_file(&ne->device, &dev_attr_ne_vendor_oui);
 }
 
 #ifdef CONFIG_HOTPLUG
@@ -1221,34 +1254,6 @@ void hpsb_unregister_protocol(struct hpsb_protocol_driver *driver)
 	driver_unregister(&driver->driver);
 }
 
-static void nodemgr_process_config_rom(struct host_info *hi,
-		struct node_entry *ne, quadlet_t busoptions)
-{
-	ne->busopt.irmc		= (busoptions >> 31) & 1;
-	ne->busopt.cmc		= (busoptions >> 30) & 1;
-	ne->busopt.isc		= (busoptions >> 29) & 1;
-	ne->busopt.bmc		= (busoptions >> 28) & 1;
-	ne->busopt.pmc		= (busoptions >> 27) & 1;
-	ne->busopt.cyc_clk_acc	= (busoptions >> 16) & 0xff;
-	ne->busopt.max_rec	= 1 << (((busoptions >> 12) & 0xf) + 1);
-	ne->busopt.generation	= (busoptions >> 4) & 0xf;
-	ne->busopt.lnkspd	= busoptions & 0x7;
-
-	HPSB_VERBOSE("NodeMgr: raw=0x%08x irmc=%d cmc=%d isc=%d bmc=%d pmc=%d "
-		     "cyc_clk_acc=%d max_rec=%d gen=%d lspd=%d",
-		     busoptions, ne->busopt.irmc, ne->busopt.cmc,
-		     ne->busopt.isc, ne->busopt.bmc, ne->busopt.pmc,
-		     ne->busopt.cyc_clk_acc, ne->busopt.max_rec,
-		     ne->busopt.generation, ne->busopt.lnkspd);
-
-	device_remove_file(&ne->device, &dev_attr_ne_vendor_oui);
-
-	nodemgr_process_root_directory(hi, ne);
-
-	if (ne->vendor_oui)
-		device_create_file(&ne->device, &dev_attr_ne_vendor_oui);
-}
-
 
 /* Searches the list of ud's that match a ne as the parent. If the ud has
  * a driver associated with it, we call that driver's update function
@@ -1303,18 +1308,14 @@ static void nodemgr_update_node(struct node_entry *ne, quadlet_t busoptions,
 		 * unregister all the unit directories. */
 		nodemgr_remove_node_uds(ne);
 
-		/* With all the ud's gone, mark the generation current,
-		 * this way the probe will succeed. */
-		ne->generation = generation;
+		nodemgr_update_bus_options(ne, busoptions);
 
-		/* This will re-register our unitdir's */
-		nodemgr_process_config_rom (hi, ne, busoptions);
-	} else
-		ne->generation = generation;
+		/* Mark the node as new, so it gets re-probed */
+		ne->needs_probe = 1;
+	}
 
-	/* Update unit_dirs with attached drivers */
-	bus_for_each_dev(&ieee1394_bus_type, NULL, ne,
-			 nodemgr_driver_search_cb);
+	/* Mark the node current */
+	ne->generation = generation;
 }
 
 static int read_businfo_block(struct hpsb_host *host, nodeid_t nodeid, unsigned int generation,
@@ -1385,10 +1386,8 @@ static int read_businfo_block(struct hpsb_host *host, nodeid_t nodeid, unsigned
 }		
 
 
-/* This is where we probe the nodes for their information and provided
- * features.  */
-static void nodemgr_node_probe_one(struct host_info *hi,
-				   nodeid_t nodeid, int generation)
+static void nodemgr_node_scan_one(struct host_info *hi,
+				  nodeid_t nodeid, int generation)
 {
 	struct hpsb_host *host = hi->host;
 	struct node_entry *ne;
@@ -1411,7 +1410,7 @@ static void nodemgr_node_probe_one(struct host_info *hi,
 		 * shouldn't be held responsible, so we'll allow it with a
 		 * warning.  */
 		HPSB_WARN("Node " NODE_BUS_FMT " has invalid busID magic [0x%08x]",
-			 NODE_BUS_ARGS(host, nodeid), buffer[1]);
+			  NODE_BUS_ARGS(host, nodeid), buffer[1]);
 	}
 
 	guid = ((u64)buffer[3] << 32) | buffer[4];
@@ -1453,24 +1452,84 @@ static int nodemgr_remove_node(struct device *dev, void *__data)
 	return 0;
 }
 
+struct ne_cb_data_struct {
+	struct host_info *hi;
+	struct node_entry *ne;
+};
 
-static void nodemgr_node_probe(struct host_info *hi, int generation)
+static int nodemgr_probe_ne_cb(struct device *dev, void *__data)
 {
-	int count;
-	struct hpsb_host *host = hi->host;
-	struct selfid *sid = (struct selfid *)host->topology_map;
-	nodeid_t nodeid = LOCAL_BUS;
+	struct ne_cb_data_struct *ne_cb_data = __data;
+	struct host_info *hi = ne_cb_data->hi;
+	struct node_entry *ne;
 
-	/* Scan each node on the bus */
-	for (count = host->selfid_count; count; count--, sid++) {
-		if (sid->extended)
-			continue;
+	if (dev->driver_data != &nodemgr_driverdata_ne)
+		return 0;
 
-		if (!sid->link_active) {
-			nodeid++;
-			continue;
+	ne = ne_cb_data->ne = container_of(dev, struct node_entry, device);
+
+	if (ne->host != hi->host)
+		return 0;
+
+	/* We can't call nodemgr_process_root_directory() here because
+	 * that can call device_register. Since this callback is under a
+	 * rwsem, the device_register would deadlock. So, we signal back
+	 * to the callback, and process things there. */
+
+	if (ne->needs_probe) {
+		ne->needs_probe = 0;
+		return 1;
+	} else {
+		/* Update unit_dirs with attached drivers */
+		bus_for_each_dev(&ieee1394_bus_type, NULL, ne,
+				 nodemgr_driver_search_cb);
+	}
+	return 0;
+}
+
+
+static void nodemgr_node_scan(struct host_info *hi, int generation)
+{
+        int count;
+        struct hpsb_host *host = hi->host;
+        struct selfid *sid = (struct selfid *)host->topology_map;
+        nodeid_t nodeid = LOCAL_BUS;
+
+        /* Scan each node on the bus */
+        for (count = host->selfid_count; count; count--, sid++) {
+                if (sid->extended)
+                        continue;
+
+                if (!sid->link_active) {
+                        nodeid++;
+                        continue;
+                }
+                nodemgr_node_scan_one(hi, nodeid++, generation);
+        }
+}
+
+static void nodemgr_node_probe(struct host_info *hi, int generation)
+{
+	struct hpsb_host *host = hi->host;
+	struct ne_cb_data_struct ne_cb_data;
+
+	ne_cb_data.hi = hi;
+	ne_cb_data.ne = NULL;
+
+	/* Do some processing of the nodes we've probed. This pulls them
+	 * into the sysfs layer if needed, and can result in processing of
+	 * unit-directories, or just updating the node and it's
+	 * unit-directories. */
+	while (bus_for_each_dev(&ieee1394_bus_type, ne_cb_data.ne ? &ne_cb_data.ne->device : NULL,
+	       &ne_cb_data, nodemgr_probe_ne_cb)) {
+		/* If we get in here, we've got a node that needs it's
+		 * unit directories processed. */
+		struct device *dev = get_device(&ne_cb_data.ne->device);
+
+		if (dev) {
+			nodemgr_process_root_directory(hi, ne_cb_data.ne);
+			put_device(dev);
 		}
-		nodemgr_node_probe_one(hi, nodeid++, generation);
 	}
 
 	/* If we had a bus reset while we were scanning the bus, it is
@@ -1513,12 +1572,12 @@ static void nodemgr_node_probe(struct host_info *hi, int generation)
 /* Because we are a 1394a-2000 compliant IRM, we need to inform all the other
  * nodes of the broadcast channel.  (Really we're only setting the validity
  * bit). Other IRM responsibilities go in here as well. */
-static void nodemgr_do_irm_duties(struct hpsb_host *host)
+static int nodemgr_do_irm_duties(struct hpsb_host *host, int cycles)
 {
 	quadlet_t bc;
         
 	if (!host->is_irm)
-		return;
+		return 1;
 
 	host->csr.broadcast_channel |= 0x40000000;  /* set validity bit */
 
@@ -1541,10 +1600,21 @@ static void nodemgr_do_irm_duties(struct hpsb_host *host)
 		else {
 			HPSB_DEBUG("The root node is not cycle master capable; "
 				   "selecting a new root node and resetting...");
+
+			if (cycles >= 5) {
+				/* Oh screw it! Just leave the bus as it is */
+				HPSB_DEBUG("Stopping reset loop for IRM sanity");
+				return 1;
+			}
+
 			hpsb_send_phy_config(host, NODEID_TO_NODE(host->node_id), -1);
 			hpsb_reset_bus(host, LONG_RESET_FORCE_ROOT);
+
+			return 0;
 		}
 	}
+
+	return 1;
 }
 
 /* We need to ensure that if we are not the IRM, that the IRM node is capable of
@@ -1608,8 +1678,10 @@ static int nodemgr_host_thread(void *__hi)
 		 * to make sure things settle down. */
 		for (i = 0; i < 4 ; i++) {
 			set_current_state(TASK_INTERRUPTIBLE);
-			if (schedule_timeout(HZ/16))
+			if (schedule_timeout(HZ/16)) {
+				up(&nodemgr_serialize);
 				goto caught_signal;
+			}
 
 			/* Now get the generation in which the node ID's we collect
 			 * are valid.  During the bus scan we will use this generation
@@ -1624,16 +1696,28 @@ static int nodemgr_host_thread(void *__hi)
 				i = 0;
 		}
 
-		if (!nodemgr_check_irm_capability(host, reset_cycles++)) {
-			/* Do nothing, we are resetting */
+		if (!nodemgr_check_irm_capability(host, reset_cycles)) {
+			reset_cycles++;
+			up(&nodemgr_serialize);
+			continue;
+		}
+
+		/* Scan our nodes to get the bus options and create node
+		 * entries. This does not do the sysfs stuff, since that
+		 * would trigger hotplug callbacks and such, which is a
+		 * bad idea at this point. */
+		nodemgr_node_scan(hi, generation);
+		if (!nodemgr_do_irm_duties(host, reset_cycles)) {
+			reset_cycles++;
 			up(&nodemgr_serialize);
 			continue;
 		}
 
 		reset_cycles = 0;
 
+		/* This actually does the full probe, with sysfs
+		 * registration. */
 		nodemgr_node_probe(hi, generation);
-		nodemgr_do_irm_duties(host);
 
 		/* Update some of our sysfs symlinks */
 		nodemgr_update_host_dev_links(host);
@@ -1778,7 +1862,6 @@ static void nodemgr_remove_host(struct hpsb_host *host)
 			kill_proc(hi->pid, SIGTERM, 1);
 			wait_for_completion(&hi->exited);
 			nodemgr_remove_host_dev(&host->device);
-			device_unregister(&host->device);
 		}
 	} else
 		HPSB_ERR("NodeMgr: host %s does not exist, cannot remove",

drivers/ieee1394/nodemgr.h

@@ -130,6 +130,7 @@ struct node_entry {
 	struct hpsb_host *host;		/* Host this node is attached to */
 	nodeid_t nodeid;		/* NodeID */
 	struct bus_options busopt;	/* Bus Options */
+	int needs_probe;
 	unsigned int generation;	/* Synced with hpsb generation */
 
 	/* The following is read from the config rom */

drivers/net/irda/smsc-ircc2.c

@@ -524,7 +524,7 @@ static int smsc_ircc_present(unsigned int fir_base, unsigned int sir_base)
 
 	return 0;
  out3:
-	release_region(fir_base, SMSC_IRCC2_FIR_CHIP_IO_EXTENT);
+	release_region(sir_base, SMSC_IRCC2_SIR_CHIP_IO_EXTENT);
  out2:
 	release_region(fir_base, SMSC_IRCC2_FIR_CHIP_IO_EXTENT);
  out1:

drivers/net/pppoe.c

@@ -352,7 +352,8 @@ static int pppoe_rcv_core(struct sock *sk, struct sk_buff *skb)
 		if (!__pppoe_xmit( relay_po->sk, skb))
 			goto abort_put;
 	} else {
-		sock_queue_rcv_skb(sk, skb);
+		if (sock_queue_rcv_skb(sk, skb))
+			goto abort_kfree;
 	}
 
 	return NET_RX_SUCCESS;

drivers/scsi/libata-core.c

@@ -133,7 +133,11 @@ void ata_tf_load_pio(struct ata_port *ap, struct ata_taskfile *tf)
 	struct ata_ioports *ioaddr = &ap->ioaddr;
 	unsigned int is_addr = tf->flags & ATA_TFLAG_ISADDR;
 
-	outb(tf->ctl, ioaddr->ctl_addr);
+	if (tf->ctl != ap->last_ctl) {
+		outb(tf->ctl, ioaddr->ctl_addr);
+		ap->last_ctl = tf->ctl;
+		ata_wait_idle(ap);
+	}
 
 	if (is_addr && (tf->flags & ATA_TFLAG_LBA48)) {
 		outb(tf->hob_feature, ioaddr->error_addr);
@@ -187,7 +191,11 @@ void ata_tf_load_mmio(struct ata_port *ap, struct ata_taskfile *tf)
 	struct ata_ioports *ioaddr = &ap->ioaddr;
 	unsigned int is_addr = tf->flags & ATA_TFLAG_ISADDR;
 
-	writeb(tf->ctl, ap->ioaddr.ctl_addr);
+	if (tf->ctl != ap->last_ctl) {
+		writeb(tf->ctl, ap->ioaddr.ctl_addr);
+		ap->last_ctl = tf->ctl;
+		ata_wait_idle(ap);
+	}
 
 	if (is_addr && (tf->flags & ATA_TFLAG_LBA48)) {
 		writeb(tf->hob_feature, (void *) ioaddr->error_addr);
@@ -1281,9 +1289,9 @@ static unsigned int ata_bus_softreset(struct ata_port *ap,
 	/* software reset.  causes dev0 to be selected */
 	if (ap->flags & ATA_FLAG_MMIO) {
 		writeb(ap->ctl, ioaddr->ctl_addr);
-		udelay(10);	/* FIXME: flush */
+		udelay(20);	/* FIXME: flush */
 		writeb(ap->ctl | ATA_SRST, ioaddr->ctl_addr);
-		udelay(10);	/* FIXME: flush */
+		udelay(20);	/* FIXME: flush */
 		writeb(ap->ctl, ioaddr->ctl_addr);
 	} else {
 		outb(ap->ctl, ioaddr->ctl_addr);
@@ -2755,6 +2763,7 @@ static void ata_host_init(struct ata_port *ap, struct Scsi_Host *host,
 	ap->cbl = ATA_CBL_NONE;
 	ap->device[0].flags = ATA_DFLAG_MASTER;
 	ap->active_tag = ATA_TAG_POISON;
+	ap->last_ctl = 0xFF;
 
 	/* ata_engine init */
 	ap->eng.flags = 0;

drivers/scsi/libata.h

@@ -26,7 +26,7 @@
 #define __LIBATA_H__
 
 #define DRV_NAME	"libata"
-#define DRV_VERSION	"0.80"	/* must be exactly four chars */
+#define DRV_VERSION	"0.81"	/* must be exactly four chars */
 
 struct ata_scsi_args {
 	struct ata_port		*ap;

drivers/scsi/sata_promise.c

@@ -213,6 +213,8 @@ static struct pci_device_id pdc_sata_pci_tbl[] = {
 	  board_2037x },
 	{ PCI_VENDOR_ID_PROMISE, 0x3375, PCI_ANY_ID, PCI_ANY_ID, 0, 0,
 	  board_2037x },
+	{ PCI_VENDOR_ID_PROMISE, 0x3376, PCI_ANY_ID, PCI_ANY_ID, 0, 0,
+	  board_2037x },
 	{ PCI_VENDOR_ID_PROMISE, 0x3318, PCI_ANY_ID, PCI_ANY_ID, 0, 0,
 	  board_20319 },
 	{ PCI_VENDOR_ID_PROMISE, 0x3319, PCI_ANY_ID, PCI_ANY_ID, 0, 0,

drivers/scsi/sata_svw.c

@@ -44,7 +44,7 @@
 #endif /* CONFIG_ALL_PPC */
 
 #define DRV_NAME	"ata_k2"
-#define DRV_VERSION	"1.02"
+#define DRV_VERSION	"1.03"
 
 
 static u32 k2_sata_scr_read (struct ata_port *ap, unsigned int sc_reg)
@@ -69,8 +69,11 @@ static void k2_sata_tf_load(struct ata_port *ap, struct ata_taskfile *tf)
 	struct ata_ioports *ioaddr = &ap->ioaddr;
 	unsigned int is_addr = tf->flags & ATA_TFLAG_ISADDR;
 
-	writeb(tf->ctl, ioaddr->ctl_addr);
-
+	if (tf->ctl != ap->last_ctl) {
+		writeb(tf->ctl, ioaddr->ctl_addr);
+		ap->last_ctl = tf->ctl;
+		ata_wait_idle(ap);
+	}
 	if (is_addr && (tf->flags & ATA_TFLAG_LBA48)) {
 		writew(tf->feature | (((u16)tf->hob_feature) << 8), ioaddr->error_addr);
 		writew(tf->nsect | (((u16)tf->hob_nsect) << 8), ioaddr->nsect_addr);
@@ -311,13 +314,24 @@ static int k2_sata_init_one (struct pci_dev *pdev, const struct pci_device_id *e
 		rc = -ENODEV;
 		goto err_out_unmap;
 	}
+
+	/* Clear a magic bit in SCR1 according to Darwin, those help
+	 * some funky seagate drives (though so far, those were already
+	 * set by the firmware on the machines I had access to
+	 */
+	writel(readl(mmio_base + 0x80) & ~0x00040000, mmio_base + 0x80);
+
+	/* Clear SATA error & interrupts we don't use */
+	writel(0xffffffff, mmio_base + 0x44);
+	writel(0x0, mmio_base + 0x88);
+
 	probe_ent->sht = &k2_sata_sht;
-	probe_ent->host_flags = ATA_FLAG_SATA | ATA_FLAG_NO_LEGACY |
-				ATA_FLAG_SRST | ATA_FLAG_MMIO;
+	probe_ent->host_flags = ATA_FLAG_SATA | ATA_FLAG_SATA_RESET |
+				ATA_FLAG_NO_LEGACY | ATA_FLAG_MMIO;
 	probe_ent->port_ops = &k2_sata_ops;
-       	probe_ent->n_ports = 2;
-       	probe_ent->irq = pdev->irq;
-       	probe_ent->irq_flags = SA_SHIRQ;
+	probe_ent->n_ports = 2;
+	probe_ent->irq = pdev->irq;
+	probe_ent->irq_flags = SA_SHIRQ;
 	probe_ent->mmio_base = mmio_base;
 
 	/*

drivers/scsi/scsi.c

@@ -367,6 +367,16 @@ int scsi_dispatch_cmd(struct scsi_cmnd *cmd)
 	unsigned long timeout;
 	int rtn = 0;
 
+	/* check if the device is still usable */
+	if (unlikely(cmd->device->sdev_state == SDEV_DEL)) {
+		/* in SDEV_DEL we error all commands. DID_NO_CONNECT
+		 * returns an immediate error upwards, and signals
+		 * that the device is no longer present */
+		cmd->result = DID_NO_CONNECT << 16;
+		scsi_done(cmd);
+		/* return 0 (because the command has been processed) */
+		goto out;
+	}
 	/* Assign a unique nonzero serial_number. */
 	/* XXX(hch): this is racy */
 	if (++serial_number == 0)
@@ -893,7 +903,7 @@ int scsi_track_queue_full(struct scsi_device *sdev, int depth)
  */
 int scsi_device_get(struct scsi_device *sdev)
 {
-	if (test_bit(SDEV_DEL, &sdev->sdev_state))
+	if (sdev->sdev_state == SDEV_DEL)
 		return -ENXIO;
 	if (!get_device(&sdev->sdev_gendev))
 		return -ENXIO;
@@ -1015,7 +1025,7 @@ int scsi_device_cancel(struct scsi_device *sdev, int recovery)
 	struct list_head *lh, *lh_sf;
 	unsigned long flags;
 
-	set_bit(SDEV_CANCEL, &sdev->sdev_state);
+	sdev->sdev_state = SDEV_CANCEL;
 
 	spin_lock_irqsave(&sdev->list_lock, flags);
 	list_for_each_entry(scmd, &sdev->cmd_list, list) {

drivers/scsi/scsi_error.c

@@ -911,7 +911,9 @@ static int scsi_try_bus_reset(struct scsi_cmnd *scmd)
 
 	if (rtn == SUCCESS) {
 		scsi_sleep(BUS_RESET_SETTLE_TIME);
+		spin_lock_irqsave(scmd->device->host->host_lock, flags);
 		scsi_report_bus_reset(scmd->device->host, scmd->device->channel);
+		spin_unlock_irqrestore(scmd->device->host->host_lock, flags);
 	}
 
 	return rtn;
@@ -940,7 +942,9 @@ static int scsi_try_host_reset(struct scsi_cmnd *scmd)
 
 	if (rtn == SUCCESS) {
 		scsi_sleep(HOST_RESET_SETTLE_TIME);
+		spin_lock_irqsave(scmd->device->host->host_lock, flags);
 		scsi_report_bus_reset(scmd->device->host, scmd->device->channel);
+		spin_unlock_irqrestore(scmd->device->host->host_lock, flags);
 	}
 
 	return rtn;
@@ -1608,7 +1612,7 @@ int scsi_error_handler(void *data)
  *
  * Returns:     Nothing
  *
- * Lock status: No locks are assumed held.
+ * Lock status: Host lock must be held.
  *
  * Notes:       This only needs to be called if the reset is one which
  *		originates from an unknown location.  Resets originated
@@ -1622,7 +1626,7 @@ void scsi_report_bus_reset(struct Scsi_Host *shost, int channel)
 {
 	struct scsi_device *sdev;
 
-	shost_for_each_device(sdev, shost) {
+	__shost_for_each_device(sdev, shost) {
 		if (channel == sdev->channel) {
 			sdev->was_reset = 1;
 			sdev->expecting_cc_ua = 1;
@@ -1642,7 +1646,7 @@ void scsi_report_bus_reset(struct Scsi_Host *shost, int channel)
  *
  * Returns:     Nothing
  *
- * Lock status: No locks are assumed held.
+ * Lock status: Host lock must be held
  *
  * Notes:       This only needs to be called if the reset is one which
  *		originates from an unknown location.  Resets originated
@@ -1656,7 +1660,7 @@ void scsi_report_device_reset(struct Scsi_Host *shost, int channel, int target)
 {
 	struct scsi_device *sdev;
 
-	shost_for_each_device(sdev, shost) {
+	__shost_for_each_device(sdev, shost) {
 		if (channel == sdev->channel &&
 		    target == sdev->id) {
 			sdev->was_reset = 1;

drivers/scsi/scsi_lib.c

@@ -923,6 +923,22 @@ static int scsi_prep_fn(struct request_queue *q, struct request *req)
 {
 	struct scsi_device *sdev = q->queuedata;
 	struct scsi_cmnd *cmd;
+	int specials_only = 0;
+
+	if(unlikely(sdev->sdev_state != SDEV_RUNNING)) {
+		/* OK, we're not in a running state don't prep
+		 * user commands */
+		if(sdev->sdev_state == SDEV_DEL) {
+			/* Device is fully deleted, no commands
+			 * at all allowed down */
+			printk(KERN_ERR "scsi%d (%d:%d): rejecting I/O to dead device\n",
+			       sdev->host->host_no, sdev->id, sdev->lun);
+			return BLKPREP_KILL;
+		}
+		/* OK, we only allow special commands (i.e. not
+		 * user initiated ones */
+		specials_only = 1;
+	}
 
 	/*
 	 * Find the actual device driver associated with this command.
@@ -945,6 +961,14 @@ static int scsi_prep_fn(struct request_queue *q, struct request *req)
 		} else
 			cmd = req->special;
 	} else if (req->flags & (REQ_CMD | REQ_BLOCK_PC)) {
+
+		if(unlikely(specials_only)) {
+			printk(KERN_ERR "scsi%d (%d:%d): rejecting I/O to device being removed\n",
+			       sdev->host->host_no, sdev->id, sdev->lun);
+			return BLKPREP_KILL;
+		}
+			
+			
 		/*
 		 * Just check to see if the device is online.  If
 		 * it isn't, we refuse to process ordinary commands
@@ -1127,6 +1151,10 @@ static void scsi_request_fn(struct request_queue *q)
 	struct scsi_cmnd *cmd;
 	struct request *req;
 
+	if(!get_device(&sdev->sdev_gendev))
+		/* We must be tearing the block queue down already */
+		return;
+
 	/*
 	 * To start with, we keep looping until the queue is empty, or until
 	 * the host is no longer able to accept any more requests.
@@ -1199,7 +1227,7 @@ static void scsi_request_fn(struct request_queue *q)
 		}
 	}
 
-	return;
+	goto out;
 
  not_ready:
 	spin_unlock_irq(shost->host_lock);
@@ -1217,6 +1245,12 @@ static void scsi_request_fn(struct request_queue *q)
 	sdev->device_busy--;
 	if(sdev->device_busy == 0)
 		blk_plug_device(q);
+ out:
+	/* must be careful here...if we trigger the ->remove() function
+	 * we cannot be holding the q lock */
+	spin_unlock_irq(q->queue_lock);
+	put_device(&sdev->sdev_gendev);
+	spin_lock_irq(q->queue_lock);
 }
 
 u64 scsi_calculate_bounce_limit(struct Scsi_Host *shost)

drivers/scsi/scsi_priv.h

@@ -130,7 +130,6 @@ extern void scsi_exit_procfs(void);
 extern int scsi_scan_host_selected(struct Scsi_Host *, unsigned int,
 				   unsigned int, unsigned int, int);
 extern void scsi_forget_host(struct Scsi_Host *);
-extern void scsi_free_sdev(struct scsi_device *);
 extern void scsi_rescan_device(struct device *);
 
 /* scsi_sysctl.c */
@@ -143,7 +142,8 @@ extern void scsi_exit_sysctl(void);
 #endif /* CONFIG_SYSCTL */
 
 /* scsi_sysfs.c */
-extern int scsi_device_register(struct scsi_device *);
+extern void scsi_device_dev_release(struct device *);
+extern int scsi_sysfs_add_sdev(struct scsi_device *);
 extern int scsi_sysfs_add_host(struct Scsi_Host *);
 extern int scsi_sysfs_register(void);
 extern void scsi_sysfs_unregister(void);

drivers/scsi/scsi_scan.c

@@ -205,6 +205,7 @@ static struct scsi_device *scsi_alloc_sdev(struct Scsi_Host *shost,
 	sdev->lun = lun;
 	sdev->channel = channel;
 	sdev->online = TRUE;
+	sdev->sdev_state = SDEV_CREATED;
 	INIT_LIST_HEAD(&sdev->siblings);
 	INIT_LIST_HEAD(&sdev->same_target_siblings);
 	INIT_LIST_HEAD(&sdev->cmd_list);
@@ -236,6 +237,25 @@ static struct scsi_device *scsi_alloc_sdev(struct Scsi_Host *shost,
 			goto out_free_queue;
 	}
 
+	if (get_device(&sdev->host->shost_gendev)) {
+
+		device_initialize(&sdev->sdev_gendev);
+		sdev->sdev_gendev.parent = &sdev->host->shost_gendev;
+		sdev->sdev_gendev.bus = &scsi_bus_type;
+		sdev->sdev_gendev.release = scsi_device_dev_release;
+		sprintf(sdev->sdev_gendev.bus_id,"%d:%d:%d:%d",
+			sdev->host->host_no, sdev->channel, sdev->id,
+			sdev->lun);
+
+		class_device_initialize(&sdev->sdev_classdev);
+		sdev->sdev_classdev.dev = &sdev->sdev_gendev;
+		sdev->sdev_classdev.class = &sdev_class;
+		snprintf(sdev->sdev_classdev.class_id, BUS_ID_SIZE,
+			 "%d:%d:%d:%d", sdev->host->host_no,
+			 sdev->channel, sdev->id, sdev->lun);
+	} else
+		goto out_free_queue;
+
 	/*
 	 * If there are any same target siblings, add this to the
 	 * sibling list
@@ -272,36 +292,6 @@ static struct scsi_device *scsi_alloc_sdev(struct Scsi_Host *shost,
 	return NULL;
 }
 
-/**
- * scsi_free_sdev - cleanup and free a scsi_device
- * @sdev:	cleanup and free this scsi_device
- *
- * Description:
- *     Undo the actions in scsi_alloc_sdev, including removing @sdev from
- *     the list, and freeing @sdev.
- **/
-void scsi_free_sdev(struct scsi_device *sdev)
-{
-	unsigned long flags;
-
-	spin_lock_irqsave(sdev->host->host_lock, flags);
-	list_del(&sdev->siblings);
-	list_del(&sdev->same_target_siblings);
-	spin_unlock_irqrestore(sdev->host->host_lock, flags);
-
-	if (sdev->request_queue)
-		scsi_free_queue(sdev->request_queue);
-
-	spin_lock_irqsave(sdev->host->host_lock, flags);
-	list_del(&sdev->starved_entry);
-	if (sdev->single_lun && --sdev->sdev_target->starget_refcnt == 0)
-		kfree(sdev->sdev_target);
-	spin_unlock_irqrestore(sdev->host->host_lock, flags);
-
-	kfree(sdev->inquiry);
-	kfree(sdev);
-}
-
 /**
  * scsi_probe_lun - probe a single LUN using a SCSI INQUIRY
  * @sreq:	used to send the INQUIRY
@@ -642,7 +632,7 @@ static int scsi_add_lun(struct scsi_device *sdev, char *inq_result, int *bflags)
 	 * register it and tell the rest of the kernel
 	 * about it.
 	 */
-	scsi_device_register(sdev);
+	scsi_sysfs_add_sdev(sdev);
 
 	return SCSI_SCAN_LUN_PRESENT;
 }
@@ -748,8 +738,11 @@ static int scsi_probe_and_add_lun(struct Scsi_Host *host,
 	if (res == SCSI_SCAN_LUN_PRESENT) {
 		if (sdevp)
 			*sdevp = sdev;
-	} else
-		scsi_free_sdev(sdev);
+	} else {
+		if (sdev->host->hostt->slave_destroy)
+			sdev->host->hostt->slave_destroy(sdev);
+		put_device(&sdev->sdev_gendev);
+	}
  out:
 	return res;
 }
@@ -1301,5 +1294,8 @@ struct scsi_device *scsi_get_host_dev(struct Scsi_Host *shost)
 void scsi_free_host_dev(struct scsi_device *sdev)
 {
 	BUG_ON(sdev->id != sdev->host->this_id);
-	scsi_free_sdev(sdev);
+
+	if (sdev->host->hostt->slave_destroy)
+		sdev->host->hostt->slave_destroy(sdev);
+	put_device(&sdev->sdev_gendev);
 }

drivers/scsi/scsi_sysfs.c

@@ -115,14 +115,29 @@ static void scsi_device_cls_release(struct class_device *class_dev)
 	put_device(&sdev->sdev_gendev);
 }
 
-static void scsi_device_dev_release(struct device *dev)
+void scsi_device_dev_release(struct device *dev)
 {
 	struct scsi_device *sdev;
 	struct device *parent;
+	unsigned long flags;
 
 	parent = dev->parent;
 	sdev = to_scsi_device(dev);
-	scsi_free_sdev(sdev);
+
+	spin_lock_irqsave(sdev->host->host_lock, flags);
+	list_del(&sdev->siblings);
+	list_del(&sdev->same_target_siblings);
+	list_del(&sdev->starved_entry);
+	if (sdev->single_lun && --sdev->sdev_target->starget_refcnt == 0)
+		kfree(sdev->sdev_target);
+	spin_unlock_irqrestore(sdev->host->host_lock, flags);
+
+	if (sdev->request_queue)
+		scsi_free_queue(sdev->request_queue);
+
+	kfree(sdev->inquiry);
+	kfree(sdev);
+
 	put_device(parent);
 }
 
@@ -321,29 +336,20 @@ static int attr_add(struct device *dev, struct device_attribute *attr)
 }
 
 /**
- * scsi_device_register - register a scsi device with the scsi bus
- * @sdev:	scsi_device to register
+ * scsi_sysfs_add_sdev - add scsi device to sysfs
+ * @sdev:	scsi_device to add
  *
  * Return value:
  * 	0 on Success / non-zero on Failure
  **/
-int scsi_device_register(struct scsi_device *sdev)
+int scsi_sysfs_add_sdev(struct scsi_device *sdev)
 {
-	int error = 0, i;
-
-	set_bit(SDEV_ADD, &sdev->sdev_state);
-	device_initialize(&sdev->sdev_gendev);
-	sprintf(sdev->sdev_gendev.bus_id,"%d:%d:%d:%d",
-		sdev->host->host_no, sdev->channel, sdev->id, sdev->lun);
-	sdev->sdev_gendev.parent = &sdev->host->shost_gendev;
-	sdev->sdev_gendev.bus = &scsi_bus_type;
-	sdev->sdev_gendev.release = scsi_device_dev_release;
-
-	class_device_initialize(&sdev->sdev_classdev);
-	sdev->sdev_classdev.dev = &sdev->sdev_gendev;
-	sdev->sdev_classdev.class = &sdev_class;
-	snprintf(sdev->sdev_classdev.class_id, BUS_ID_SIZE, "%d:%d:%d:%d",
-		sdev->host->host_no, sdev->channel, sdev->id, sdev->lun);
+	int error = -EINVAL, i;
+
+	if (sdev->sdev_state != SDEV_CREATED)
+		return error;
+
+	sdev->sdev_state = SDEV_RUNNING;
 
 	error = device_add(&sdev->sdev_gendev);
 	if (error) {
@@ -351,8 +357,6 @@ int scsi_device_register(struct scsi_device *sdev)
 		return error;
 	}
 
-	get_device(sdev->sdev_gendev.parent);
-
 	error = class_device_add(&sdev->sdev_classdev);
 	if (error) {
 		printk(KERN_INFO "error 2\n");
@@ -384,8 +388,11 @@ int scsi_device_register(struct scsi_device *sdev)
 	return error;
 
 clean_device:
+	sdev->sdev_state = SDEV_CANCEL;
+
 	device_del(&sdev->sdev_gendev);
 	put_device(&sdev->sdev_gendev);
+
 	return error;
 
 }
@@ -396,12 +403,14 @@ int scsi_device_register(struct scsi_device *sdev)
  **/
 void scsi_remove_device(struct scsi_device *sdev)
 {
-	class_device_unregister(&sdev->sdev_classdev);
-	set_bit(SDEV_DEL, &sdev->sdev_state);
-	if (sdev->host->hostt->slave_destroy)
-		sdev->host->hostt->slave_destroy(sdev);
-	device_del(&sdev->sdev_gendev);
-	put_device(&sdev->sdev_gendev);
+	if (sdev->sdev_state == SDEV_RUNNING || sdev->sdev_state == SDEV_CANCEL) {
+		sdev->sdev_state = SDEV_DEL;
+		class_device_unregister(&sdev->sdev_classdev);
+		device_del(&sdev->sdev_gendev);
+		if (sdev->host->hostt->slave_destroy)
+			sdev->host->hostt->slave_destroy(sdev);
+		put_device(&sdev->sdev_gendev);
+	}
 }
 
 int scsi_register_driver(struct device_driver *drv)

drivers/video/igafb.c

@@ -70,8 +70,8 @@ struct fb_info fb_info;
 
 struct fb_fix_screeninfo igafb_fix __initdata = {
         .id		= "IGA 1682",
-	.type		= FB_TYPE_PACKED_PIXELS;
-	.mmio_len 	= 1000;
+	.type		= FB_TYPE_PACKED_PIXELS,
+	.mmio_len 	= 1000
 };
 
 struct fb_var_screeninfo default_var = {
@@ -149,7 +149,7 @@ struct fb_var_screeninfo default_var_1280x1024 __initdata = {
 	.xres		= 1280,
 	.yres		= 1024,
 	.xres_virtual	= 1280,
-	.yres_virtaul	= 1024,
+	.yres_virtual	= 1024,
 	.bits_per_pixel	= 8,
 	.red		= {0, 8, 0 }, 
 	.green		= {0, 8, 0 },
@@ -300,17 +300,17 @@ static int igafb_setcolreg(unsigned regno, unsigned red, unsigned green,
 	if (regno < 16) {
 		switch (info->var.bits_per_pixel) {
 		case 16:
-			info->pseudo_palette[regno] = 
+			((u16*)(info->pseudo_palette))[regno] = 
 				(regno << 10) | (regno << 5) | regno;
 			break;
 		case 24:
-			info->pseudo_palette[regno] = 
+			((u32*)(info->pseudo_palette))[regno] = 
 				(regno << 16) | (regno << 8) | regno;
 		break;
 		case 32:
 			{ int i;
 			i = (regno << 8) | regno;
-			info->pseudo_palette[regno] = (i << 16) | i;
+			((u32*)(info->pseudo_palette))[regno] = (i << 16) | i;
 			}
 			break;
 		}
@@ -359,7 +359,7 @@ static int __init iga_init(struct fb_info *info, struct iga_par *par)
 	info->fbops = &igafb_ops;
 	info->flags = FBINFO_FLAG_DEFAULT;
 
-	fb_alloc_cmap(info->cmap, video_cmap_len, 0);
+	fb_alloc_cmap(&info->cmap, video_cmap_len, 0);
 
 	if (register_framebuffer(info) < 0)
 		return 0;

fs/jfs/jfs_logmgr.c

@@ -1415,6 +1415,10 @@ void jfs_flush_journal(struct jfs_log *log, int wait)
 	int i;
 	struct tblock *target;
 
+	/* jfs_write_inode may call us during read-only mount */
+	if (!log)
+		return;
+
 	jfs_info("jfs_flush_journal: log:0x%p wait=%d", log, wait);
 
 	LOGGC_LOCK(log);

fs/proc/proc_tty.c

@@ -198,6 +198,7 @@ void proc_tty_register_driver(struct tty_driver *driver)
 		return;
 	ent->read_proc = driver->read_proc;
 	ent->write_proc = driver->write_proc;
+	ent->owner = driver->owner;
 	ent->data = driver;
 
 	driver->proc_entry = ent;

include/asm-ia64/pgtable.h

@@ -496,6 +496,6 @@ extern void update_mmu_cache (struct vm_area_struct *vma, unsigned long vaddr, p
 
 /* These tell get_user_pages() that the first gate page is accessible from user-level.  */
 #define FIXADDR_USER_START	GATE_ADDR
-#define FIXADDR_USER_END	(GATE_ADDR + 2*PAGE_SIZE)
+#define FIXADDR_USER_END	(GATE_ADDR + 2*PERCPU_PAGE_SIZE)
 
 #endif /* _ASM_IA64_PGTABLE_H */

include/linux/libata.h

@@ -310,6 +310,7 @@ struct ata_port {
 	struct ata_ioports	ioaddr;	/* ATA cmd/ctl/dma register blocks */
 
 	u8			ctl;	/* cache of ATA control register */
+	u8			last_ctl;	/* Cache last written value */
 	unsigned int		bus_state;
 	unsigned int		port_state;
 	unsigned int		pio_mask;
@@ -522,12 +523,12 @@ static inline u8 ata_irq_on(struct ata_port *ap)
 	struct ata_ioports *ioaddr = &ap->ioaddr;
 
 	ap->ctl &= ~ATA_NIEN;
+	ap->last_ctl = ap->ctl;
 
 	if (ap->flags & ATA_FLAG_MMIO)
 		writeb(ap->ctl, ioaddr->ctl_addr);
 	else
 		outb(ap->ctl, ioaddr->ctl_addr);
-
 	return ata_wait_idle(ap);
 }
 

include/net/sock.h

@@ -917,6 +917,7 @@ static inline void skb_set_owner_r(struct sk_buff *skb, struct sock *sk)
 static inline int sock_queue_rcv_skb(struct sock *sk, struct sk_buff *skb)
 {
 	int err = 0;
+	int skb_len;
 
 	/* Cast skb->rcvbuf to unsigned... It's pointless, but reduces
 	   number of warnings when compiling with -W --ANK
@@ -937,9 +938,18 @@ static inline int sock_queue_rcv_skb(struct sock *sk, struct sk_buff *skb)
 
 	skb->dev = NULL;
 	skb_set_owner_r(skb, sk);
+
+	/* Cache the SKB length before we tack it onto the receive
+	 * queue.  Once it is added it no longer belongs to us and
+	 * may be freed by other threads of control pulling packets
+	 * from the queue.
+	 */
+	skb_len = skb->len;
+
 	skb_queue_tail(&sk->sk_receive_queue, skb);
+
 	if (!sock_flag(sk, SOCK_DEAD))
-		sk->sk_data_ready(sk, skb->len);
+		sk->sk_data_ready(sk, skb_len);
 out:
 	return err;
 }

include/scsi/scsi_device.h

@@ -14,11 +14,15 @@ struct scsi_mode_data;
 /*
  * sdev state
  */
-enum {
-	SDEV_ADD,
-	SDEV_DEL,
-	SDEV_CANCEL,
-	SDEV_RECOVERY,
+enum scsi_device_state {
+	SDEV_CREATED,		/* device created but not added to sysfs
+				 * Only internal commands allowed (for inq) */
+	SDEV_RUNNING,		/* device properly configured
+				 * All commands allowed */
+	SDEV_CANCEL,		/* beginning to delete device
+				 * Only error handler commands allowed */
+	SDEV_DEL,		/* device deleted 
+				 * no commands allowed */
 };
 
 struct scsi_device {
@@ -99,7 +103,7 @@ struct scsi_device {
 	struct device		sdev_gendev;
 	struct class_device	sdev_classdev;
 
-	unsigned long sdev_state;
+	enum scsi_device_state sdev_state;
 };
 #define	to_scsi_device(d)	\
 	container_of(d, struct scsi_device, sdev_gendev)

kernel/fork.c

@@ -1014,6 +1014,7 @@ struct task_struct *copy_process(unsigned long clone_flags,
 		if (current->signal->group_exit) {
 			spin_unlock(&current->sighand->siglock);
 			write_unlock_irq(&tasklist_lock);
+			retval = -EAGAIN;
 			goto bad_fork_cleanup_namespace;
 		}
 		p->tgid = current->tgid;

net/bridge/br.c

@@ -32,7 +32,7 @@ int (*br_should_route_hook) (struct sk_buff **pskb) = NULL;
 
 static int __init br_init(void)
 {
-#if defined(CONFIG_INET) && defined(CONFIG_NETFILTER)
+#ifdef CONFIG_BRIDGE_NETFILTER
 	if (br_netfilter_init())
 		return 1;
 #endif
@@ -50,7 +50,7 @@ static int __init br_init(void)
 
 static void __exit br_deinit(void)
 {
-#if defined(CONFIG_INET) && defined(CONFIG_NETFILTER)
+#ifdef CONFIG_BRIDGE_NETFILTER
 	br_netfilter_fini();
 #endif
 	unregister_netdevice_notifier(&br_device_notifier);

net/econet/af_econet.c

@@ -1041,12 +1041,15 @@ static int econet_rcv(struct sk_buff *skb, struct net_device *dev, struct packet
 	if (!sk)
 		goto drop;
 
-	return ec_queue_packet(sk, skb, edev->net, hdr->src_stn, hdr->cb, 
-			       hdr->port);
+	if (ec_queue_packet(sk, skb, edev->net, hdr->src_stn, hdr->cb,
+			    hdr->port))
+		goto drop;
+
+	return 0;
 
 drop:
 	kfree_skb(skb);
-	return 0;
+	return NET_RX_DROP;
 }
 
 static struct packet_type econet_packet_type = {

net/ipv6/addrconf.c

@@ -1924,9 +1924,13 @@ static int addrconf_ifdown(struct net_device *dev, int how)
 		write_unlock_bh(&addrconf_hash_lock);
 	}
 
-	/* Step 3: clear address list */
-
 	write_lock_bh(&idev->lock);
+
+	/* Step 3: clear flags for stateless addrconf */
+	if (how != 1)
+		idev->if_flags &= ~(IF_RS_SENT|IF_RA_RCVD);
+
+	/* Step 4: clear address list */
 #ifdef CONFIG_IPV6_PRIVACY
 	if (how == 1 && del_timer(&idev->regen_timer))
 		in6_dev_put(idev);
@@ -1962,7 +1966,7 @@ static int addrconf_ifdown(struct net_device *dev, int how)
 	}
 	write_unlock_bh(&idev->lock);
 
-	/* Step 4: Discard multicast list */
+	/* Step 5: Discard multicast list */
 
 	if (how == 1)
 		ipv6_mc_destroy_dev(idev);

net/ipv6/mcast.c

@@ -47,6 +47,9 @@
 #include <linux/proc_fs.h>
 #include <linux/seq_file.h>
 
+#include <linux/netfilter.h>
+#include <linux/netfilter_ipv6.h>
+
 #include <net/sock.h>
 #include <net/snmp.h>
 
@@ -1270,6 +1273,7 @@ static void mld_sendpack(struct sk_buff *skb)
 	struct mld2_report *pmr = (struct mld2_report *)skb->h.raw;
 	int payload_len, mldlen;
 	struct inet6_dev *idev = in6_dev_get(skb->dev);
+	int err;
 
 	payload_len = skb->tail - (unsigned char *)skb->nh.ipv6h -
 		sizeof(struct ipv6hdr);
@@ -1278,8 +1282,10 @@ static void mld_sendpack(struct sk_buff *skb)
 
 	pmr->csum = csum_ipv6_magic(&pip6->saddr, &pip6->daddr, mldlen,
 		IPPROTO_ICMPV6, csum_partial(skb->h.raw, mldlen, 0));
-	dev_queue_xmit(skb);
-	ICMP6_INC_STATS(idev,Icmp6OutMsgs);
+	err = NF_HOOK(PF_INET6, NF_IP6_LOCAL_OUT, skb, NULL, skb->dev,
+		dev_queue_xmit);
+	if (!err)
+		ICMP6_INC_STATS(idev,Icmp6OutMsgs);
 	if (likely(idev != NULL))
 		in6_dev_put(idev);
 }
@@ -1608,12 +1614,15 @@ static void igmp6_send(struct in6_addr *addr, struct net_device *dev, int type)
 
 	idev = in6_dev_get(skb->dev);
 
-	dev_queue_xmit(skb);
-	if (type == ICMPV6_MGM_REDUCTION)
-		ICMP6_INC_STATS(idev, Icmp6OutGroupMembReductions);
-	else
-		ICMP6_INC_STATS(idev, Icmp6OutGroupMembResponses);
-	ICMP6_INC_STATS(idev, Icmp6OutMsgs);
+	err = NF_HOOK(PF_INET6, NF_IP6_LOCAL_OUT, skb, NULL, skb->dev,
+		dev_queue_xmit);
+	if (!err) {
+		if (type == ICMPV6_MGM_REDUCTION)
+			ICMP6_INC_STATS(idev, Icmp6OutGroupMembReductions);
+		else
+			ICMP6_INC_STATS(idev, Icmp6OutGroupMembResponses);
+		ICMP6_INC_STATS(idev, Icmp6OutMsgs);
+	}
 
 	if (likely(idev != NULL))
 		in6_dev_put(idev);

net/irda/irttp.c

@@ -859,10 +859,10 @@ static int irttp_udata_indication(void *instance, void *sap,
 		err = self->notify.udata_indication(self->notify.instance,
 						    self,skb);
 		/* Same comment as in irttp_do_data_indication() */
-		if (err != -ENOMEM) 
+		if (!err) 
 			return 0;
 	}
-	/* Either no handler, or -ENOMEM */
+	/* Either no handler, or handler returns an error */
 	dev_kfree_skb(skb);
 
 	return 0;
@@ -1620,7 +1620,7 @@ void irttp_do_data_indication(struct tsap_cb *self, struct sk_buff *skb)
 	 * be difficult, so it can instead just refuse to eat it and just
 	 * give an error back
 	 */
-	if (err == -ENOMEM) {
+	if (err) {
 		IRDA_DEBUG(0, "%s() requeueing skb!\n", __FUNCTION__);
 
 		/* Make sure we take a break */