Merge branch 'for-linus' of master.kernel.org:/pub/scm/linux/kernel/git/scjody/ieee1394

* 'for-linus' of master.kernel.org:/pub/scm/linux/kernel/git/scjody/ieee1394:
ohci1394: cleanup the "Unexpected PCI resource length" warning.
sbp2: misc debug logging cleanups
sbp2: proper treatment of DID_OK
ieee1394: set read permission for parameter disable_irm
sbp2: check for ARM failure
ohci1394: clean up asynchronous and physical request filters programming
ieee1394: remove amdtp remains from ieee1394_core.h
ieee1394: remove devfs support
Signed-off-by: Jody McIntyre <[e-mail]>
sbp2: prevent unloading of 1394 low-level driver

drivers/ieee1394/dv1394.c

···
   - fix all XXX showstoppers
   - disable IR/IT DMA interrupts on shutdown
   - flush pci writes to the card by issuing a read
-  - devfs and character device dispatching (* needs testing with Linux 2.2.x)
+  - character device dispatching
   - switch over to the new kernel DMA API (pci_map_*()) (* needs testing on platforms with IOMMU!)
   - keep all video_cards in a list (for open() via chardev), set file->private_data = video
   - dv1394_poll should indicate POLLIN when receiving buffers are available
···
 
 	init.api_version = DV1394_API_VERSION;
 	init.n_frames = DV1394_MAX_FRAMES / 4;
-	/* the following are now set via devfs */
 	init.channel = video->channel;
 	init.format = video->pal_or_ntsc;
 	init.cip_n = video->cip_n;
···
 {
 	struct video_card *video = NULL;
 
-	/* if the device was opened through devfs, then file->private_data
-	   has already been set to video by devfs */
 	if (file->private_data) {
 		video = (struct video_card*) file->private_data;
 
···
 	video = kzalloc(sizeof(*video), GFP_KERNEL);
 	if (!video) {
 		printk(KERN_ERR "dv1394: cannot allocate video_card\n");
-		goto err;
+		return -1;
 	}
 
 	video->ohci = ohci;
···
 	list_add_tail(&video->list, &dv1394_cards);
 	spin_unlock_irqrestore(&dv1394_cards_lock, flags);
 
-	if (devfs_mk_cdev(MKDEV(IEEE1394_MAJOR,
-				IEEE1394_MINOR_BLOCK_DV1394*16 + video->id),
-			S_IFCHR|S_IRUGO|S_IWUGO,
-			 "ieee1394/dv/host%d/%s/%s",
-			 (video->id>>2),
-			 (video->pal_or_ntsc == DV1394_NTSC ? "NTSC" : "PAL"),
-			 (video->mode == MODE_RECEIVE ? "in" : "out")) < 0)
-			goto err_free;
-
 	debug_printk("dv1394: dv1394_init() OK on ID %d\n", video->id);
-
 	return 0;
-
- err_free:
-	kfree(video);
- err:
-	return -1;
 }
 
 static void dv1394_un_init(struct video_card *video)
 {
-	char buf[32];
-
 	/* obviously nobody has the driver open at this point */
 	do_dv1394_shutdown(video, 1);
-	snprintf(buf, sizeof(buf), "dv/host%d/%s/%s", (video->id >> 2),
-		(video->pal_or_ntsc == DV1394_NTSC ? "NTSC" : "PAL"),
-		(video->mode == MODE_RECEIVE ? "in" : "out")
-		);
-
-	devfs_remove("ieee1394/%s", buf);
 	kfree(video);
 }
 
···
 
 	class_device_destroy(hpsb_protocol_class,
 		MKDEV(IEEE1394_MAJOR, IEEE1394_MINOR_BLOCK_DV1394 * 16 + (id<<2)));
-	devfs_remove("ieee1394/dv/host%d/NTSC", id);
-	devfs_remove("ieee1394/dv/host%d/PAL", id);
-	devfs_remove("ieee1394/dv/host%d", id);
 }
 
 static void dv1394_add_host (struct hpsb_host *host)
···
 	class_device_create(hpsb_protocol_class, NULL, MKDEV(
 		IEEE1394_MAJOR,	IEEE1394_MINOR_BLOCK_DV1394 * 16 + (id<<2)), 
 		NULL, "dv1394-%d", id);
-	devfs_mk_dir("ieee1394/dv/host%d", id);
-	devfs_mk_dir("ieee1394/dv/host%d/NTSC", id);
-	devfs_mk_dir("ieee1394/dv/host%d/PAL", id);
 
 	dv1394_init(ohci, DV1394_NTSC, MODE_RECEIVE);
 	dv1394_init(ohci, DV1394_NTSC, MODE_TRANSMIT);
···
 static void __exit dv1394_exit_module(void)
 {
 	hpsb_unregister_protocol(&dv1394_driver);
-
 	hpsb_unregister_highlevel(&dv1394_highlevel);
 	cdev_del(&dv1394_cdev);
-	devfs_remove("ieee1394/dv");
 }
 
 static int __init dv1394_init_module(void)
···
 		return ret;
 	}
 
-	devfs_mk_dir("ieee1394/dv");
-
 	hpsb_register_highlevel(&dv1394_highlevel);
 
 	ret = hpsb_register_protocol(&dv1394_driver);
 	if (ret) {
 		printk(KERN_ERR "dv1394: failed to register protocol\n");
 		hpsb_unregister_highlevel(&dv1394_highlevel);
-		devfs_remove("ieee1394/dv");
 		cdev_del(&dv1394_cdev);
 		return ret;
 	}

drivers/ieee1394/ieee1394_core.c

···
 
 /* Disable Isochronous Resource Manager functionality */
 int hpsb_disable_irm = 0;
-module_param_named(disable_irm, hpsb_disable_irm, bool, 0);
+module_param_named(disable_irm, hpsb_disable_irm, bool, 0444);
 MODULE_PARM_DESC(disable_irm,
 		 "Disable Isochronous Resource Manager functionality.");
 
···
 		goto exit_release_kernel_thread;
 	}
 
-	/* actually this is a non-fatal error */
-	ret = devfs_mk_dir("ieee1394");
-	if (ret < 0) {
-		HPSB_ERR("unable to make devfs dir for device major %d!\n", IEEE1394_MAJOR);
-		goto release_chrdev;
-	}
-
 	ret = bus_register(&ieee1394_bus_type);
 	if (ret < 0) {
 		HPSB_INFO("bus register failed");
-		goto release_devfs;
+		goto release_chrdev;
 	}
 
 	for (i = 0; fw_bus_attrs[i]; i++) {
···
 						fw_bus_attrs[i--]);
 			}
 			bus_unregister(&ieee1394_bus_type);
-			goto release_devfs;
+			goto release_chrdev;
 		}
 	}
 
···
 	for (i = 0; fw_bus_attrs[i]; i++)
 		bus_remove_file(&ieee1394_bus_type, fw_bus_attrs[i]);
 	bus_unregister(&ieee1394_bus_type);
-release_devfs:
-	devfs_remove("ieee1394");
 release_chrdev:
 	unregister_chrdev_region(IEEE1394_CORE_DEV, 256);
 exit_release_kernel_thread:
···
 	hpsb_cleanup_config_roms();
 
 	unregister_chrdev_region(IEEE1394_CORE_DEV, 256);
-	devfs_remove("ieee1394");
 }
 
 module_init(ieee1394_init);

drivers/ieee1394/ieee1394_core.h

···
 #define _IEEE1394_CORE_H
 
 #include <linux/slab.h>
-#include <linux/devfs_fs_kernel.h>
 #include <asm/atomic.h>
 #include <asm/semaphore.h>
 #include "hosts.h"
···
 #define IEEE1394_MINOR_BLOCK_RAW1394	   0
 #define IEEE1394_MINOR_BLOCK_VIDEO1394	   1
 #define IEEE1394_MINOR_BLOCK_DV1394	   2
-#define IEEE1394_MINOR_BLOCK_AMDTP	   3
 #define IEEE1394_MINOR_BLOCK_EXPERIMENTAL 15
 
 #define IEEE1394_CORE_DEV	  MKDEV(IEEE1394_MAJOR, 0)
 #define IEEE1394_RAW1394_DEV	  MKDEV(IEEE1394_MAJOR, IEEE1394_MINOR_BLOCK_RAW1394 * 16)
 #define IEEE1394_VIDEO1394_DEV	  MKDEV(IEEE1394_MAJOR, IEEE1394_MINOR_BLOCK_VIDEO1394 * 16)
 #define IEEE1394_DV1394_DEV	  MKDEV(IEEE1394_MAJOR, IEEE1394_MINOR_BLOCK_DV1394 * 16)
-#define IEEE1394_AMDTP_DEV	  MKDEV(IEEE1394_MAJOR, IEEE1394_MINOR_BLOCK_AMDTP * 16)
 #define IEEE1394_EXPERIMENTAL_DEV MKDEV(IEEE1394_MAJOR, IEEE1394_MINOR_BLOCK_EXPERIMENTAL * 16)
 
 /* return the index (within a minor number block) of a file */

drivers/ieee1394/ohci1394.c

···
 	/* Initialize IR Legacy DMA channel mask */
 	ohci->ir_legacy_channels = 0;
 
-	/*
-	 * Accept AT requests from all nodes. This probably
-	 * will have to be controlled from the subsystem
-	 * on a per node basis.
-	 */
-	reg_write(ohci,OHCI1394_AsReqFilterHiSet, 0x80000000);
+	/* Accept AR requests from all nodes */
+	reg_write(ohci, OHCI1394_AsReqFilterHiSet, 0x80000000);
+
+	/* Set the address range of the physical response unit.
+	 * Most controllers do not implement it as a writable register though.
+	 * They will keep a hardwired offset of 0x00010000 and show 0x0 as
+	 * register content.
+	 * To actually enable physical responses is the job of our interrupt
+	 * handler which programs the physical request filter. */
+	reg_write(ohci, OHCI1394_PhyUpperBound, 0xffff0000);
+
+	DBGMSG("physUpperBoundOffset=%08x",
+	       reg_read(ohci, OHCI1394_PhyUpperBound));
 
 	/* Specify AT retries */
 	reg_write(ohci, OHCI1394_ATRetries,
···
 		  OHCI1394_reqTxComplete |
 		  OHCI1394_isochRx |
 		  OHCI1394_isochTx |
+		  OHCI1394_postedWriteErr |
 		  OHCI1394_cycleInconsistent);
 
 	/* Enable link */
···
 
 		event &= ~OHCI1394_unrecoverableError;
 	}
-
+	if (event & OHCI1394_postedWriteErr) {
+		PRINT(KERN_ERR, "physical posted write error");
+		/* no recovery strategy yet, had to involve protocol drivers */
+	}
 	if (event & OHCI1394_cycleInconsistent) {
 		/* We subscribe to the cycleInconsistent event only to
 		 * clear the corresponding event bit... otherwise,
···
 		DBGMSG("OHCI1394_cycleInconsistent");
 		event &= ~OHCI1394_cycleInconsistent;
 	}
-
 	if (event & OHCI1394_busReset) {
 		/* The busReset event bit can't be cleared during the
 		 * selfID phase, so we disable busReset interrupts, to
···
 		}
 		event &= ~OHCI1394_busReset;
 	}
-
 	if (event & OHCI1394_reqTxComplete) {
 		struct dma_trm_ctx *d = &ohci->at_req_context;
 		DBGMSG("Got reqTxComplete interrupt "
···
 			reg_write(ohci, OHCI1394_IntMaskSet, OHCI1394_busReset);
 			spin_unlock_irqrestore(&ohci->event_lock, flags);
 
-			/* Accept Physical requests from all nodes. */
-			reg_write(ohci,OHCI1394_AsReqFilterHiSet, 0xffffffff);
-			reg_write(ohci,OHCI1394_AsReqFilterLoSet, 0xffffffff);
-
 			/* Turn on phys dma reception.
 			 *
 			 * TODO: Enable some sort of filtering management.
 			 */
 			if (phys_dma) {
-				reg_write(ohci,OHCI1394_PhyReqFilterHiSet, 0xffffffff);
-				reg_write(ohci,OHCI1394_PhyReqFilterLoSet, 0xffffffff);
-				reg_write(ohci,OHCI1394_PhyUpperBound, 0xffff0000);
-			} else {
-				reg_write(ohci,OHCI1394_PhyReqFilterHiSet, 0x00000000);
-				reg_write(ohci,OHCI1394_PhyReqFilterLoSet, 0x00000000);
+				reg_write(ohci, OHCI1394_PhyReqFilterHiSet,
+					  0xffffffff);
+				reg_write(ohci, OHCI1394_PhyReqFilterLoSet,
+					  0xffffffff);
 			}
 
 			DBGMSG("PhyReqFilter=%08x%08x",
-			       reg_read(ohci,OHCI1394_PhyReqFilterHiSet),
-			       reg_read(ohci,OHCI1394_PhyReqFilterLoSet));
+			       reg_read(ohci, OHCI1394_PhyReqFilterHiSet),
+			       reg_read(ohci, OHCI1394_PhyReqFilterLoSet));
 
 			hpsb_selfid_complete(host, phyid, isroot);
 		} else
···
 	 * fail to report the right length.  Anyway, the ohci spec
 	 * clearly says it's 2kb, so this shouldn't be a problem. */
 	ohci_base = pci_resource_start(dev, 0);
-	if (pci_resource_len(dev, 0) != OHCI1394_REGISTER_SIZE)
-		PRINT(KERN_WARNING, "Unexpected PCI resource length of %lx!",
+	if (pci_resource_len(dev, 0) < OHCI1394_REGISTER_SIZE)
+		PRINT(KERN_WARNING, "PCI resource length of %lx too small!",
 		      pci_resource_len(dev, 0));
 
 	/* Seems PCMCIA handles this internally. Not sure why. Seems

drivers/ieee1394/raw1394.c

···
 #include <linux/cdev.h>
 #include <asm/uaccess.h>
 #include <asm/atomic.h>
-#include <linux/devfs_fs_kernel.h>
 #include <linux/compat.h>
 
 #include "csr1212.h"
···
 		goto out_unreg;
 	}
 
-	devfs_mk_cdev(MKDEV(IEEE1394_MAJOR, IEEE1394_MINOR_BLOCK_RAW1394 * 16),
-		      S_IFCHR | S_IRUSR | S_IWUSR, RAW1394_DEVICE_NAME);
-
 	cdev_init(&raw1394_cdev, &raw1394_fops);
 	raw1394_cdev.owner = THIS_MODULE;
 	kobject_set_name(&raw1394_cdev.kobj, RAW1394_DEVICE_NAME);
···
 	goto out;
 
       out_dev:
-	devfs_remove(RAW1394_DEVICE_NAME);
 	class_device_destroy(hpsb_protocol_class,
 			     MKDEV(IEEE1394_MAJOR,
 				   IEEE1394_MINOR_BLOCK_RAW1394 * 16));
···
 			     MKDEV(IEEE1394_MAJOR,
 				   IEEE1394_MINOR_BLOCK_RAW1394 * 16));
 	cdev_del(&raw1394_cdev);
-	devfs_remove(RAW1394_DEVICE_NAME);
 	hpsb_unregister_highlevel(&raw1394_highlevel);
 	hpsb_unregister_protocol(&raw1394_driver);
 }

drivers/ieee1394/sbp2.c

···
 #endif
 
 #define SBP2_ERR(fmt, args...)		HPSB_ERR("sbp2: "fmt, ## args)
+#define SBP2_DEBUG_ENTER()		SBP2_DEBUG("%s", __FUNCTION__)
 
 /*
  * Globals
···
 		command->Current_SCpnt = Current_SCpnt;
 		list_add_tail(&command->list, &scsi_id->sbp2_command_orb_inuse);
 	} else {
-		SBP2_ERR("sbp2util_allocate_command_orb - No orbs available!");
+		SBP2_ERR("%s: no orbs available", __FUNCTION__);
 	}
 	spin_unlock_irqrestore(&scsi_id->sbp2_command_orb_lock, flags);
 	return command;
···
 	struct hpsb_host *host;
 
 	if (!scsi_id) {
-		printk(KERN_ERR "%s: scsi_id == NULL\n", __FUNCTION__);
+		SBP2_ERR("%s: scsi_id == NULL", __FUNCTION__);
 		return;
 	}
 
···
 	struct unit_directory *ud;
 	struct scsi_id_instance_data *scsi_id;
 
-	SBP2_DEBUG("sbp2_probe");
+	SBP2_DEBUG_ENTER();
 
 	ud = container_of(dev, struct unit_directory, device);
 
···
 	struct scsi_id_instance_data *scsi_id;
 	struct scsi_device *sdev;
 
-	SBP2_DEBUG("sbp2_remove");
+	SBP2_DEBUG_ENTER();
 
 	ud = container_of(dev, struct unit_directory, device);
 	scsi_id = ud->device.driver_data;
···
 {
 	struct scsi_id_instance_data *scsi_id = ud->device.driver_data;
 
-	SBP2_DEBUG("sbp2_update");
+	SBP2_DEBUG_ENTER();
 
 	if (sbp2_reconnect_device(scsi_id)) {
 
···
 	struct Scsi_Host *scsi_host = NULL;
 	struct scsi_id_instance_data *scsi_id = NULL;
 
-	SBP2_DEBUG("sbp2_alloc_device");
+	SBP2_DEBUG_ENTER();
 
 	scsi_id = kzalloc(sizeof(*scsi_id), GFP_KERNEL);
 	if (!scsi_id) {
···
 
 #ifdef CONFIG_IEEE1394_SBP2_PHYS_DMA
 		/* Handle data movement if physical dma is not
-		 * enabled/supportedon host controller */
-		hpsb_register_addrspace(&sbp2_highlevel, ud->ne->host, &sbp2_physdma_ops,
-					0x0ULL, 0xfffffffcULL);
+		 * enabled or not supported on host controller */
+		if (!hpsb_register_addrspace(&sbp2_highlevel, ud->ne->host,
+					     &sbp2_physdma_ops,
+					     0x0ULL, 0xfffffffcULL)) {
+			SBP2_ERR("failed to register lower 4GB address range");
+			goto failed_alloc;
+		}
 #endif
+	}
+
+	/* Prevent unloading of the 1394 host */
+	if (!try_module_get(hi->host->driver->owner)) {
+		SBP2_ERR("failed to get a reference on 1394 host driver");
+		goto failed_alloc;
 	}
 
 	scsi_id->hi = hi;
···
 	struct sbp2scsi_host_info *hi = scsi_id->hi;
 	int error;
 
-	SBP2_DEBUG("sbp2_start_device");
+	SBP2_DEBUG_ENTER();
 
 	/* Login FIFO DMA */
 	scsi_id->login_response =
···
 	 * allows someone else to login instead. One second makes sense. */
 	msleep_interruptible(1000);
 	if (signal_pending(current)) {
-		SBP2_WARN("aborting sbp2_start_device due to event");
 		sbp2_remove_device(scsi_id);
 		return -EINTR;
 	}
···
 {
 	struct sbp2scsi_host_info *hi;
 
-	SBP2_DEBUG("sbp2_remove_device");
+	SBP2_DEBUG_ENTER();
 
 	if (!scsi_id)
 		return;
···
 
 	scsi_id->ud->device.driver_data = NULL;
 
+	if (hi)
+		module_put(hi->host->driver->owner);
+
 	SBP2_DEBUG("SBP-2 device removed, SCSI ID = %d", scsi_id->ud->id);
 
 	kfree(scsi_id);
···
 	int max_logins;
 	int active_logins;
 
-	SBP2_DEBUG("sbp2_query_logins");
+	SBP2_DEBUG_ENTER();
 
 	scsi_id->query_logins_orb->reserved1 = 0x0;
 	scsi_id->query_logins_orb->reserved2 = 0x0;
 
 	scsi_id->query_logins_orb->query_response_lo = scsi_id->query_logins_response_dma;
 	scsi_id->query_logins_orb->query_response_hi = ORB_SET_NODE_ID(hi->host->node_id);
-	SBP2_DEBUG("sbp2_query_logins: query_response_hi/lo initialized");
 
 	scsi_id->query_logins_orb->lun_misc = ORB_SET_FUNCTION(SBP2_QUERY_LOGINS_REQUEST);
 	scsi_id->query_logins_orb->lun_misc |= ORB_SET_NOTIFY(1);
 	scsi_id->query_logins_orb->lun_misc |= ORB_SET_LUN(scsi_id->sbp2_lun);
-	SBP2_DEBUG("sbp2_query_logins: lun_misc initialized");
 
 	scsi_id->query_logins_orb->reserved_resp_length =
 		ORB_SET_QUERY_LOGINS_RESP_LENGTH(sizeof(struct sbp2_query_logins_response));
-	SBP2_DEBUG("sbp2_query_logins: reserved_resp_length initialized");
 
 	scsi_id->query_logins_orb->status_fifo_hi =
 		ORB_SET_STATUS_FIFO_HI(scsi_id->status_fifo_addr, hi->host->node_id);
···
 
 	sbp2util_cpu_to_be32_buffer(scsi_id->query_logins_orb, sizeof(struct sbp2_query_logins_orb));
 
-	SBP2_DEBUG("sbp2_query_logins: orb byte-swapped");
-
 	sbp2util_packet_dump(scsi_id->query_logins_orb, sizeof(struct sbp2_query_logins_orb),
 			     "sbp2 query logins orb", scsi_id->query_logins_orb_dma);
 
 	memset(scsi_id->query_logins_response, 0, sizeof(struct sbp2_query_logins_response));
 	memset(&scsi_id->status_block, 0, sizeof(struct sbp2_status_block));
-
-	SBP2_DEBUG("sbp2_query_logins: query_logins_response/status FIFO memset");
 
 	data[0] = ORB_SET_NODE_ID(hi->host->node_id);
 	data[1] = scsi_id->query_logins_orb_dma;
···
 
 	atomic_set(&scsi_id->sbp2_login_complete, 0);
 
-	SBP2_DEBUG("sbp2_query_logins: prepared to write");
 	hpsb_node_write(scsi_id->ne, scsi_id->sbp2_management_agent_addr, data, 8);
-	SBP2_DEBUG("sbp2_query_logins: written");
 
 	if (sbp2util_down_timeout(&scsi_id->sbp2_login_complete, 2*HZ)) {
 		SBP2_INFO("Error querying logins to SBP-2 device - timed out");
···
 	struct sbp2scsi_host_info *hi = scsi_id->hi;
 	quadlet_t data[2];
 
-	SBP2_DEBUG("sbp2_login_device");
+	SBP2_DEBUG_ENTER();
 
 	if (!scsi_id->login_orb) {
-		SBP2_DEBUG("sbp2_login_device: login_orb not alloc'd!");
+		SBP2_DEBUG("%s: login_orb not alloc'd!", __FUNCTION__);
 		return -EIO;
 	}
 
···
 	/* Set-up login ORB, assume no password */
 	scsi_id->login_orb->password_hi = 0;
 	scsi_id->login_orb->password_lo = 0;
-	SBP2_DEBUG("sbp2_login_device: password_hi/lo initialized");
 
 	scsi_id->login_orb->login_response_lo = scsi_id->login_response_dma;
 	scsi_id->login_orb->login_response_hi = ORB_SET_NODE_ID(hi->host->node_id);
-	SBP2_DEBUG("sbp2_login_device: login_response_hi/lo initialized");
 
 	scsi_id->login_orb->lun_misc = ORB_SET_FUNCTION(SBP2_LOGIN_REQUEST);
 	scsi_id->login_orb->lun_misc |= ORB_SET_RECONNECT(0);	/* One second reconnect time */
 	scsi_id->login_orb->lun_misc |= ORB_SET_EXCLUSIVE(exclusive_login);	/* Exclusive access to device */
 	scsi_id->login_orb->lun_misc |= ORB_SET_NOTIFY(1);	/* Notify us of login complete */
 	scsi_id->login_orb->lun_misc |= ORB_SET_LUN(scsi_id->sbp2_lun);
-	SBP2_DEBUG("sbp2_login_device: lun_misc initialized");
 
 	scsi_id->login_orb->passwd_resp_lengths =
 		ORB_SET_LOGIN_RESP_LENGTH(sizeof(struct sbp2_login_response));
-	SBP2_DEBUG("sbp2_login_device: passwd_resp_lengths initialized");
 
 	scsi_id->login_orb->status_fifo_hi =
 		ORB_SET_STATUS_FIFO_HI(scsi_id->status_fifo_addr, hi->host->node_id);
 	scsi_id->login_orb->status_fifo_lo =
 		ORB_SET_STATUS_FIFO_LO(scsi_id->status_fifo_addr);
 
-	/*
-	 * Byte swap ORB if necessary
-	 */
 	sbp2util_cpu_to_be32_buffer(scsi_id->login_orb, sizeof(struct sbp2_login_orb));
-
-	SBP2_DEBUG("sbp2_login_device: orb byte-swapped");
 
 	sbp2util_packet_dump(scsi_id->login_orb, sizeof(struct sbp2_login_orb),
 			     "sbp2 login orb", scsi_id->login_orb_dma);
 
-	/*
-	 * Initialize login response and status fifo
-	 */
 	memset(scsi_id->login_response, 0, sizeof(struct sbp2_login_response));
 	memset(&scsi_id->status_block, 0, sizeof(struct sbp2_status_block));
 
-	SBP2_DEBUG("sbp2_login_device: login_response/status FIFO memset");
-
-	/*
-	 * Ok, let's write to the target's management agent register
-	 */
 	data[0] = ORB_SET_NODE_ID(hi->host->node_id);
 	data[1] = scsi_id->login_orb_dma;
 	sbp2util_cpu_to_be32_buffer(data, 8);
 
 	atomic_set(&scsi_id->sbp2_login_complete, 0);
 
-	SBP2_DEBUG("sbp2_login_device: prepared to write to %08x",
-		   (unsigned int)scsi_id->sbp2_management_agent_addr);
 	hpsb_node_write(scsi_id->ne, scsi_id->sbp2_management_agent_addr, data, 8);
-	SBP2_DEBUG("sbp2_login_device: written");
 
 	/*
 	 * Wait for login status (up to 20 seconds)...
···
 	quadlet_t data[2];
 	int error;
 
-	SBP2_DEBUG("sbp2_logout_device");
+	SBP2_DEBUG_ENTER();
 
 	/*
 	 * Set-up logout ORB
···
 	quadlet_t data[2];
 	int error;
 
-	SBP2_DEBUG("sbp2_reconnect_device");
+	SBP2_DEBUG_ENTER();
 
 	/*
 	 * Set-up reconnect ORB
···
 {
 	quadlet_t data;
 
-	SBP2_DEBUG("sbp2_set_busy_timeout");
+	SBP2_DEBUG_ENTER();
 
-	/*
-	 * Ok, let's write to the target's busy timeout register
-	 */
 	data = cpu_to_be32(SBP2_BUSY_TIMEOUT_VALUE);
-
-	if (hpsb_node_write(scsi_id->ne, SBP2_BUSY_TIMEOUT_ADDRESS, &data, 4)) {
-		SBP2_ERR("sbp2_set_busy_timeout error");
-	}
-
+	if (hpsb_node_write(scsi_id->ne, SBP2_BUSY_TIMEOUT_ADDRESS, &data, 4))
+		SBP2_ERR("%s error", __FUNCTION__);
 	return 0;
 }
 
···
 	    firmware_revision, workarounds;
 	int i;
 
-	SBP2_DEBUG("sbp2_parse_unit_directory");
+	SBP2_DEBUG_ENTER();
 
 	management_agent_addr = 0x0;
 	command_set_spec_id = 0x0;
···
 {
 	struct sbp2scsi_host_info *hi = scsi_id->hi;
 
-	SBP2_DEBUG("sbp2_max_speed_and_size");
+	SBP2_DEBUG_ENTER();
 
 	/* Initial setting comes from the hosts speed map */
 	scsi_id->speed_code =
···
 	u64 addr;
 	int retval;
 
-	SBP2_DEBUG("sbp2_agent_reset");
+	SBP2_DEBUG_ENTER();
 
-	/*
-	 * Ok, let's write to the target's management agent register
-	 */
 	data = ntohl(SBP2_AGENT_RESET_DATA);
 	addr = scsi_id->sbp2_command_block_agent_addr + SBP2_AGENT_RESET_OFFSET;
 
···
 	unsigned int request_bufflen = SCpnt->request_bufflen;
 	struct sbp2_command_info *command;
 
-	SBP2_DEBUG("sbp2_send_command");
-#if (CONFIG_IEEE1394_SBP2_DEBUG >= 2) || defined(CONFIG_IEEE1394_SBP2_PACKET_DUMP)
-	printk("[scsi command]\n   ");
-	scsi_print_command(SCpnt);
-#endif
+	SBP2_DEBUG_ENTER();
 	SBP2_DEBUG("SCSI transfer size = %x", request_bufflen);
 	SBP2_DEBUG("SCSI s/g elements = %x", (unsigned int)SCpnt->use_sg);
 
···
  */
 static unsigned int sbp2_status_to_sense_data(unchar *sbp2_status, unchar *sense_data)
 {
-	SBP2_DEBUG("sbp2_status_to_sense_data");
+	SBP2_DEBUG_ENTER();
 
 	/*
 	 * Ok, it's pretty ugly...   ;-)
···
 {
 	u8 *scsi_buf = SCpnt->request_buffer;
 
-	SBP2_DEBUG("sbp2_check_sbp2_response");
+	SBP2_DEBUG_ENTER();
 
 	if (SCpnt->cmnd[0] == INQUIRY && (SCpnt->cmnd[1] & 3) == 0) {
 		/*
···
 	struct sbp2_command_info *command;
 	unsigned long flags;
 
-	SBP2_DEBUG("sbp2_handle_status_write");
+	SBP2_DEBUG_ENTER();
 
 	sbp2util_packet_dump(data, length, "sbp2 status write by device", (u32)addr);
 
···
 	struct sbp2scsi_host_info *hi;
 	int result = DID_NO_CONNECT << 16;
 
-	SBP2_DEBUG("sbp2scsi_queuecommand");
+	SBP2_DEBUG_ENTER();
+#if (CONFIG_IEEE1394_SBP2_DEBUG >= 2) || defined(CONFIG_IEEE1394_SBP2_PACKET_DUMP)
+	scsi_print_command(SCpnt);
+#endif
 
 	if (!sbp2util_node_is_available(scsi_id))
 		goto done;
···
 	struct sbp2_command_info *command;
 	unsigned long flags;
 
-	SBP2_DEBUG("sbp2scsi_complete_all_commands");
+	SBP2_DEBUG_ENTER();
 
 	spin_lock_irqsave(&scsi_id->sbp2_command_orb_lock, flags);
 	while (!list_empty(&scsi_id->sbp2_command_orb_inuse)) {
···
 				      u32 scsi_status, struct scsi_cmnd *SCpnt,
 				      void (*done)(struct scsi_cmnd *))
 {
-	SBP2_DEBUG("sbp2scsi_complete_command");
+	SBP2_DEBUG_ENTER();
 
 	/*
 	 * Sanity
···
 	 */
 	switch (scsi_status) {
 	case SBP2_SCSI_STATUS_GOOD:
-		SCpnt->result = DID_OK;
+		SCpnt->result = DID_OK << 16;
 		break;
 
 	case SBP2_SCSI_STATUS_BUSY:
···
 
 	case SBP2_SCSI_STATUS_CHECK_CONDITION:
 		SBP2_DEBUG("SBP2_SCSI_STATUS_CHECK_CONDITION");
-		SCpnt->result = CHECK_CONDITION << 1;
-
-		/*
-		 * Debug stuff
-		 */
+		SCpnt->result = CHECK_CONDITION << 1 | DID_OK << 16;
 #if CONFIG_IEEE1394_SBP2_DEBUG >= 1
 		scsi_print_command(SCpnt);
-		scsi_print_sense("bh", SCpnt);
+		scsi_print_sense(SBP2_DEVICE_NAME, SCpnt);
 #endif
-
 		break;
 
 	case SBP2_SCSI_STATUS_SELECTION_TIMEOUT:
···
 	/*
 	 * Take care of any sbp2 response data mucking here (RBC stuff, etc.)
 	 */
-	if (SCpnt->result == DID_OK) {
+	if (SCpnt->result == DID_OK << 16) {
 		sbp2_check_sbp2_response(scsi_id, SCpnt);
 	}
 
···
 	 * If a unit attention occurs, return busy status so it gets
 	 * retried... it could have happened because of a 1394 bus reset
 	 * or hot-plug...
+	 * XXX  DID_BUS_BUSY is actually a bad idea because it will defy
+	 * the scsi layer's retry logic.
 	 */
 #if 0
 	if ((scsi_status == SBP2_SCSI_STATUS_CHECK_CONDITION) &&
···
 {
 	int ret;
 
-	SBP2_DEBUG("sbp2_module_init");
+	SBP2_DEBUG_ENTER();
 
 	/* Module load debug option to force one command at a time (serializing I/O) */
 	if (serialize_io) {
···
 
 static void __exit sbp2_module_exit(void)
 {
-	SBP2_DEBUG("sbp2_module_exit");
+	SBP2_DEBUG_ENTER();
 
 	hpsb_unregister_protocol(&sbp2_driver);
 

drivers/ieee1394/video1394.c

···
 #include <linux/poll.h>
 #include <linux/smp_lock.h>
 #include <linux/delay.h>
-#include <linux/devfs_fs_kernel.h>
 #include <linux/bitops.h>
 #include <linux/types.h>
 #include <linux/vmalloc.h>
···
 	class_device_create(hpsb_protocol_class, NULL, MKDEV(
 		IEEE1394_MAJOR,	minor), 
 		NULL, "%s-%d", VIDEO1394_DRIVER_NAME, ohci->host->id);
-	devfs_mk_cdev(MKDEV(IEEE1394_MAJOR, minor),
-		       S_IFCHR | S_IRUSR | S_IWUSR,
-		       "%s/%d", VIDEO1394_DRIVER_NAME, ohci->host->id);
 }
 
 
···
 {
 	struct ti_ohci *ohci = hpsb_get_hostinfo(&video1394_highlevel, host);
 
-	if (ohci) {
+	if (ohci)
 		class_device_destroy(hpsb_protocol_class, MKDEV(IEEE1394_MAJOR,
 			IEEE1394_MINOR_BLOCK_VIDEO1394 * 16 + ohci->host->id));
-		devfs_remove("%s/%d", VIDEO1394_DRIVER_NAME, ohci->host->id);
-	}
-	
 	return;
 }
 
···
 static void __exit video1394_exit_module (void)
 {
 	hpsb_unregister_protocol(&video1394_driver);
-
 	hpsb_unregister_highlevel(&video1394_highlevel);
-
-	devfs_remove(VIDEO1394_DRIVER_NAME);
 	cdev_del(&video1394_cdev);
-
 	PRINT_G(KERN_INFO, "Removed " VIDEO1394_DRIVER_NAME " module");
 }
 
···
 		return ret;
         }
 
-	devfs_mk_dir(VIDEO1394_DRIVER_NAME);
-
 	hpsb_register_highlevel(&video1394_highlevel);
 
 	ret = hpsb_register_protocol(&video1394_driver);
 	if (ret) {
 		PRINT_G(KERN_ERR, "video1394: failed to register protocol");
 		hpsb_unregister_highlevel(&video1394_highlevel);
-		devfs_remove(VIDEO1394_DRIVER_NAME);
 		cdev_del(&video1394_cdev);
 		return ret;
 	}