ieee1394: remove devfs support

Devfs has been disabled in the last kernel releases, so let's
remove it from ieee1394core, raw1394, video1394, dv1394.

Signed-off-by: Stefan Richter <[e-mail]>
Acked-by: Greg Kroah-Hartman <[e-mail]>
Cc: Dan Dennedy <[e-mail]>
Signed-off-by: Jody McIntyre <[e-mail]>

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

···
 		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"

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/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;
 	}