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Diffstat (limited to 'target/linux/generic-2.6/patches/000-reenable_devfs.patch')
-rw-r--r--target/linux/generic-2.6/patches/000-reenable_devfs.patch718
1 files changed, 718 insertions, 0 deletions
diff --git a/target/linux/generic-2.6/patches/000-reenable_devfs.patch b/target/linux/generic-2.6/patches/000-reenable_devfs.patch
new file mode 100644
index 0000000000..7871c4c378
--- /dev/null
+++ b/target/linux/generic-2.6/patches/000-reenable_devfs.patch
@@ -0,0 +1,718 @@
+diff -ur linux-2.6.15-rc5/drivers/mtd/mtd_blkdevs.c linux-2.6.15-rc5-openwrt/drivers/mtd/mtd_blkdevs.c
+--- linux-2.6.15-rc5/drivers/mtd/mtd_blkdevs.c 2005-12-04 06:10:42.000000000 +0100
++++ linux-2.6.15-rc5-openwrt/drivers/mtd/mtd_blkdevs.c 2005-12-15 07:53:20.000000000 +0100
+@@ -21,6 +21,9 @@
+ #include <linux/init.h>
+ #include <asm/semaphore.h>
+ #include <asm/uaccess.h>
++#ifdef CONFIG_DEVFS_FS
++#include <linux/devfs_fs_kernel.h>
++#endif
+
+ static LIST_HEAD(blktrans_majors);
+
+@@ -302,6 +305,11 @@
+ snprintf(gd->disk_name, sizeof(gd->disk_name),
+ "%s%d", tr->name, new->devnum);
+
++#ifdef CONFIG_DEVFS_FS
++ snprintf(gd->devfs_name, sizeof(gd->devfs_name),
++ "%s/%c", tr->name, (tr->part_bits?'a':'0') + new->devnum);
++#endif
++
+ /* 2.5 has capacity in units of 512 bytes while still
+ having BLOCK_SIZE_BITS set to 10. Just to keep us amused. */
+ set_capacity(gd, (new->size * new->blksize) >> 9);
+@@ -418,6 +426,10 @@
+ return ret;
+ }
+
++#ifdef CONFIG_DEVFS_FS
++ devfs_mk_dir(tr->name);
++#endif
++
+ INIT_LIST_HEAD(&tr->devs);
+ list_add(&tr->list, &blktrans_majors);
+
+@@ -450,6 +462,10 @@
+ tr->remove_dev(dev);
+ }
+
++#ifdef CONFIG_DEVFS_FS
++ devfs_remove(tr->name);
++#endif
++
+ blk_cleanup_queue(tr->blkcore_priv->rq);
+ unregister_blkdev(tr->major, tr->name);
+
+diff -ur linux-2.6.15-rc5/drivers/mtd/mtdchar.c linux-2.6.15-rc5-openwrt/drivers/mtd/mtdchar.c
+--- linux-2.6.15-rc5/drivers/mtd/mtdchar.c 2005-12-04 06:10:42.000000000 +0100
++++ linux-2.6.15-rc5-openwrt/drivers/mtd/mtdchar.c 2005-12-15 07:49:15.000000000 +0100
+@@ -19,19 +18,33 @@
+
+ #include <asm/uaccess.h>
+
++#ifdef CONFIG_DEVFS_FS
++#include <linux/devfs_fs_kernel.h>
++#else
++#include <linux/device.h>
++
+ static struct class *mtd_class;
++#endif
+
+ static void mtd_notify_add(struct mtd_info* mtd)
+ {
+ if (!mtd)
+ return;
+
++#ifdef CONFIG_DEVFS_FS
++ devfs_mk_cdev(MKDEV(MTD_CHAR_MAJOR, mtd->index*2),
++ S_IFCHR | S_IRUGO | S_IWUGO, "mtd/%d", mtd->index);
++
++ devfs_mk_cdev(MKDEV(MTD_CHAR_MAJOR, mtd->index*2+1),
++ S_IFCHR | S_IRUGO, "mtd/%dro", mtd->index);
++#else
+ class_device_create(mtd_class, NULL, MKDEV(MTD_CHAR_MAJOR, mtd->index*2),
+ NULL, "mtd%d", mtd->index);
+
+ class_device_create(mtd_class, NULL,
+ MKDEV(MTD_CHAR_MAJOR, mtd->index*2+1),
+ NULL, "mtd%dro", mtd->index);
++#endif
+ }
+
+ static void mtd_notify_remove(struct mtd_info* mtd)
+@@ -39,8 +52,13 @@
+ if (!mtd)
+ return;
+
++#ifdef CONFIG_DEVFS_FS
++ devfs_remove("mtd/%d", mtd->index);
++ devfs_remove("mtd/%dro", mtd->index);
++#else
+ class_device_destroy(mtd_class, MKDEV(MTD_CHAR_MAJOR, mtd->index*2));
+ class_device_destroy(mtd_class, MKDEV(MTD_CHAR_MAJOR, mtd->index*2+1));
++#endif
+ }
+
+ static struct mtd_notifier notifier = {
+@@ -48,6 +66,22 @@
+ .remove = mtd_notify_remove,
+ };
+
++#ifdef CONFIG_DEVFS_FS
++ static inline void mtdchar_devfs_init(void)
++ {
++ devfs_mk_dir("mtd");
++ register_mtd_user(&notifier);
++ }
++ static inline void mtdchar_devfs_exit(void)
++ {
++ unregister_mtd_user(&notifier);
++ devfs_remove("mtd");
++ }
++ #else /* !DEVFS */
++ #define mtdchar_devfs_init() do { } while(0)
++ #define mtdchar_devfs_exit() do { } while(0)
++#endif
++
+ /*
+ * We use file->private_data to store a pointer to the MTDdevice.
+ * Since alighment is at least 32 bits, we have 2 bits free for OTP
+@@ -643,6 +677,9 @@
+ return -EAGAIN;
+ }
+
++#ifdef CONFIG_DEVFS_FS
++ mtdchar_devfs_init();
++#else
+ mtd_class = class_create(THIS_MODULE, "mtd");
+
+ if (IS_ERR(mtd_class)) {
+@@ -652,13 +689,19 @@
+ }
+
+ register_mtd_user(&notifier);
++#endif
+ return 0;
+ }
+
+ static void __exit cleanup_mtdchar(void)
+ {
++
++#ifdef CONFIG_DEVFS_FS
++ mtdchar_devfs_exit();
++#else
+ unregister_mtd_user(&notifier);
+ class_destroy(mtd_class);
++#endif
+ unregister_chrdev(MTD_CHAR_MAJOR, "mtd");
+ }
+
+diff -ur linux-2.6.15-rc5/fs/Kconfig linux-2.6.15-rc5-openwrt/fs/Kconfig
+--- linux-2.6.15-rc5/fs/Kconfig 2005-12-04 06:10:42.000000000 +0100
++++ linux-2.6.15-rc5-openwrt/fs/Kconfig 2005-12-15 07:44:01.000000000 +0100
+@@ -772,6 +772,56 @@
+ help
+ Exports the dump image of crashed kernel in ELF format.
+
++config DEVFS_FS
++ bool "/dev file system support (OBSOLETE)"
++ depends on EXPERIMENTAL
++ help
++ This is support for devfs, a virtual file system (like /proc) which
++ provides the file system interface to device drivers, normally found
++ in /dev. Devfs does not depend on major and minor number
++ allocations. Device drivers register entries in /dev which then
++ appear automatically, which means that the system administrator does
++ not have to create character and block special device files in the
++ /dev directory using the mknod command (or MAKEDEV script) anymore.
++
++ This is work in progress. If you want to use this, you *must* read
++ the material in <file:Documentation/filesystems/devfs/>, especially
++ the file README there.
++
++ Note that devfs no longer manages /dev/pts! If you are using UNIX98
++ ptys, you will also need to mount the /dev/pts filesystem (devpts).
++
++ Note that devfs has been obsoleted by udev,
++ <http://www.kernel.org/pub/linux/utils/kernel/hotplug/>.
++ It has been stripped down to a bare minimum and is only provided for
++ legacy installations that use its naming scheme which is
++ unfortunately different from the names normal Linux installations
++ use.
++
++ If unsure, say N.
++
++config DEVFS_MOUNT
++ bool "Automatically mount at boot"
++ depends on DEVFS_FS
++ help
++ This option appears if you have CONFIG_DEVFS_FS enabled. Setting
++ this to 'Y' will make the kernel automatically mount devfs onto /dev
++ when the system is booted, before the init thread is started.
++ You can override this with the "devfs=nomount" boot option.
++
++ If unsure, say N.
++
++config DEVFS_DEBUG
++ bool "Debug devfs"
++ depends on DEVFS_FS
++ help
++ If you say Y here, then the /dev file system code will generate
++ debugging messages. See the file
++ <file:Documentation/filesystems/devfs/boot-options> for more
++ details.
++
++ If unsure, say N.
++
+ config SYSFS
+ bool "sysfs file system support" if EMBEDDED
+ default y
+diff -ur linux-2.6.17/drivers/ieee1394/dv1394.c linux-2.6.17-devfs/drivers/ieee1394/dv1394.c
+--- linux-2.6.17/drivers/ieee1394/dv1394.c 2006-06-17 18:49:35.000000000 -0700
++++ linux-2.6.17-devfs/drivers/ieee1394/dv1394.c 2006-08-25 11:06:18.000000000 -0700
+@@ -73,7 +73,7 @@
+ - fix all XXX showstoppers
+ - disable IR/IT DMA interrupts on shutdown
+ - flush pci writes to the card by issuing a read
+- - character device dispatching
++ - devfs and character device dispatching (* needs testing with Linux 2.2.x)
+ - 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
+@@ -1096,6 +1096,7 @@
+
+ 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;
+@@ -1790,6 +1791,8 @@
+ {
+ 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;
+
+@@ -2208,7 +2211,7 @@
+ video = kzalloc(sizeof(*video), GFP_KERNEL);
+ if (!video) {
+ printk(KERN_ERR "dv1394: cannot allocate video_card\n");
+- return -1;
++ goto err;
+ }
+
+ video->ohci = ohci;
+@@ -2263,14 +2266,37 @@
+ 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);
+ }
+
+@@ -2307,6 +2333,9 @@
+
+ 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)
+@@ -2323,6 +2352,9 @@
+ 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);
+@@ -2579,8 +2611,10 @@
+ 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)
+@@ -2596,12 +2630,15 @@
+ 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;
+ }
+diff -ur linux-2.6.17/drivers/ieee1394/ieee1394_core.c linux-2.6.17-devfs/drivers/ieee1394/ieee1394_core.c
+--- linux-2.6.17/drivers/ieee1394/ieee1394_core.c 2006-06-17 18:49:35.000000000 -0700
++++ linux-2.6.17-devfs/drivers/ieee1394/ieee1394_core.c 2006-08-25 11:06:18.000000000 -0700
+@@ -1078,10 +1078,17 @@
+ 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_chrdev;
++ goto release_devfs;
+ }
+
+ for (i = 0; fw_bus_attrs[i]; i++) {
+@@ -1092,7 +1099,7 @@
+ fw_bus_attrs[i--]);
+ }
+ bus_unregister(&ieee1394_bus_type);
+- goto release_chrdev;
++ goto release_devfs;
+ }
+ }
+
+@@ -1145,6 +1152,8 @@
+ 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:
+@@ -1182,6 +1191,7 @@
+ hpsb_cleanup_config_roms();
+
+ unregister_chrdev_region(IEEE1394_CORE_DEV, 256);
++ devfs_remove("ieee1394");
+ }
+
+ module_init(ieee1394_init);
+diff -ur linux-2.6.17/drivers/ieee1394/ieee1394_core.h linux-2.6.17-devfs/drivers/ieee1394/ieee1394_core.h
+--- linux-2.6.17/drivers/ieee1394/ieee1394_core.h 2006-06-17 18:49:35.000000000 -0700
++++ linux-2.6.17-devfs/drivers/ieee1394/ieee1394_core.h 2006-08-25 11:06:18.000000000 -0700
+@@ -3,6 +3,7 @@
+ #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"
+diff -ur linux-2.6.17/drivers/ieee1394/raw1394.c linux-2.6.17-devfs/drivers/ieee1394/raw1394.c
+--- linux-2.6.17/drivers/ieee1394/raw1394.c 2006-06-17 18:49:35.000000000 -0700
++++ linux-2.6.17-devfs/drivers/ieee1394/raw1394.c 2006-08-25 11:06:18.000000000 -0700
+@@ -41,6 +41,7 @@
+ #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"
+@@ -2998,6 +2999,9 @@
+ 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);
+@@ -3019,6 +3023,7 @@
+ goto out;
+
+ out_dev:
++ devfs_remove(RAW1394_DEVICE_NAME);
+ class_device_destroy(hpsb_protocol_class,
+ MKDEV(IEEE1394_MAJOR,
+ IEEE1394_MINOR_BLOCK_RAW1394 * 16));
+@@ -3034,6 +3039,7 @@
+ 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);
+ }
+diff -ur linux-2.6.17/drivers/ieee1394/video1394.c linux-2.6.17-devfs/drivers/ieee1394/video1394.c
+--- linux-2.6.17/drivers/ieee1394/video1394.c 2006-06-17 18:49:35.000000000 -0700
++++ linux-2.6.17-devfs/drivers/ieee1394/video1394.c 2006-08-25 11:06:18.000000000 -0700
+@@ -42,6 +42,7 @@
+ #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>
+@@ -1321,6 +1322,9 @@
+ 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);
+ }
+
+
+@@ -1328,9 +1332,12 @@
+ {
+ 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;
+ }
+
+@@ -1471,8 +1478,12 @@
+ 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");
+ }
+
+@@ -1489,12 +1500,15 @@
+ 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;
+ }
+diff -ur linux-2.6.17/drivers/scsi/osst.c linux-2.6.17-devfs/drivers/scsi/osst.c
+--- linux-2.6.17/drivers/scsi/osst.c 2006-06-17 18:49:35.000000000 -0700
++++ linux-2.6.17-devfs/drivers/scsi/osst.c 2006-08-25 11:06:18.000000000 -0700
+@@ -48,6 +48,7 @@
+ #include <linux/vmalloc.h>
+ #include <linux/blkdev.h>
+ #include <linux/moduleparam.h>
++#include <linux/devfs_fs_kernel.h>
+ #include <linux/delay.h>
+ #include <linux/jiffies.h>
+ #include <asm/uaccess.h>
+@@ -5721,7 +5722,7 @@
+ struct st_partstat * STps;
+ struct osst_buffer * buffer;
+ struct gendisk * drive;
+- int i, dev_num;
++ int i, mode, dev_num;
+
+ if (SDp->type != TYPE_TAPE || !osst_supports(SDp))
+ return -ENODEV;
+@@ -5857,6 +5858,18 @@
+ snprintf(name, 8, "%s%s", "n", tape_name(tpnt));
+ osst_sysfs_add(MKDEV(OSST_MAJOR, dev_num + 128), dev, tpnt, name);
+ }
++ for (mode = 0; mode < ST_NBR_MODES; ++mode) {
++ /* Rewind entry */
++ devfs_mk_cdev(MKDEV(OSST_MAJOR, dev_num + (mode << 5)),
++ S_IFCHR | S_IRUGO | S_IWUGO,
++ "%s/ot%s", SDp->devfs_name, osst_formats[mode]);
++
++ /* No-rewind entry */
++ devfs_mk_cdev(MKDEV(OSST_MAJOR, dev_num + (mode << 5) + 128),
++ S_IFCHR | S_IRUGO | S_IWUGO,
++ "%s/ot%sn", SDp->devfs_name, osst_formats[mode]);
++ }
++ drive->number = devfs_register_tape(SDp->devfs_name);
+
+ sdev_printk(KERN_INFO, SDp,
+ "osst :I: Attached OnStream %.5s tape as %s\n",
+@@ -5873,7 +5886,7 @@
+ {
+ struct scsi_device * SDp = to_scsi_device(dev);
+ struct osst_tape * tpnt;
+- int i;
++ int i, mode;
+
+ if ((SDp->type != TYPE_TAPE) || (osst_nr_dev <= 0))
+ return 0;
+@@ -5884,6 +5897,11 @@
+ osst_sysfs_destroy(MKDEV(OSST_MAJOR, i));
+ osst_sysfs_destroy(MKDEV(OSST_MAJOR, i+128));
+ tpnt->device = NULL;
++ for (mode = 0; mode < ST_NBR_MODES; ++mode) {
++ devfs_remove("%s/ot%s", SDp->devfs_name, osst_formats[mode]);
++ devfs_remove("%s/ot%sn", SDp->devfs_name, osst_formats[mode]);
++ }
++ devfs_unregister_tape(tpnt->drive->number);
+ put_disk(tpnt->drive);
+ os_scsi_tapes[i] = NULL;
+ osst_nr_dev--;
+diff -ur linux-2.6.17/drivers/scsi/scsi.c linux-2.6.17-devfs/drivers/scsi/scsi.c
+--- linux-2.6.17/drivers/scsi/scsi.c 2006-06-17 18:49:35.000000000 -0700
++++ linux-2.6.17-devfs/drivers/scsi/scsi.c 2006-08-25 11:07:42.000000000 -0700
+@@ -48,6 +48,7 @@
+ #include <linux/delay.h>
+ #include <linux/init.h>
+ #include <linux/completion.h>
++#include <linux/devfs_fs_kernel.h>
+ #include <linux/unistd.h>
+ #include <linux/spinlock.h>
+ #include <linux/kmod.h>
+@@ -1247,6 +1248,7 @@
+ for_each_possible_cpu(i)
+ INIT_LIST_HEAD(&per_cpu(scsi_done_q, i));
+
++ devfs_mk_dir("scsi");
+ printk(KERN_NOTICE "SCSI subsystem initialized\n");
+ return 0;
+
+@@ -1271,6 +1273,7 @@
+ scsi_exit_sysctl();
+ scsi_exit_hosts();
+ scsi_exit_devinfo();
++ devfs_remove("scsi");
+ scsi_exit_procfs();
+ scsi_exit_queue();
+ }
+diff -ur linux-2.6.17/drivers/scsi/scsi_scan.c linux-2.6.17-devfs/drivers/scsi/scsi_scan.c
+--- linux-2.6.17/drivers/scsi/scsi_scan.c 2006-06-17 18:49:35.000000000 -0700
++++ linux-2.6.17-devfs/drivers/scsi/scsi_scan.c 2006-08-25 11:06:18.000000000 -0700
+@@ -716,8 +716,12 @@
+ if (inq_result[7] & 0x10)
+ sdev->sdtr = 1;
+
++ sprintf(sdev->devfs_name, "scsi/host%d/bus%d/target%d/lun%d",
++ sdev->host->host_no, sdev->channel,
++ sdev->id, sdev->lun);
++
+ /*
+- * End sysfs code.
++ * End driverfs/devfs code.
+ */
+
+ if ((sdev->scsi_level >= SCSI_2) && (inq_result[7] & 2) &&
+diff -ur linux-2.6.17/drivers/scsi/sd.c linux-2.6.17-devfs/drivers/scsi/sd.c
+--- linux-2.6.17/drivers/scsi/sd.c 2006-06-17 18:49:35.000000000 -0700
++++ linux-2.6.17-devfs/drivers/scsi/sd.c 2006-08-25 11:06:18.000000000 -0700
+@@ -1683,6 +1683,8 @@
+ 'a' + m1, 'a' + m2, 'a' + m3);
+ }
+
++ strcpy(gd->devfs_name, sdp->devfs_name);
++
+ gd->private_data = &sdkp->driver;
+ gd->queue = sdkp->device->request_queue;
+
+diff -ur linux-2.6.17/drivers/scsi/sg.c linux-2.6.17-devfs/drivers/scsi/sg.c
+--- linux-2.6.17/drivers/scsi/sg.c 2006-06-17 18:49:35.000000000 -0700
++++ linux-2.6.17-devfs/drivers/scsi/sg.c 2006-08-25 11:06:18.000000000 -0700
+@@ -44,6 +44,7 @@
+ #include <linux/poll.h>
+ #include <linux/smp_lock.h>
+ #include <linux/moduleparam.h>
++#include <linux/devfs_fs_kernel.h>
+ #include <linux/cdev.h>
+ #include <linux/seq_file.h>
+ #include <linux/blkdev.h>
+@@ -1427,10 +1428,14 @@
+ k = error;
+ sdp = sg_dev_arr[k];
+
++ devfs_mk_cdev(MKDEV(SCSI_GENERIC_MAJOR, k),
++ S_IFCHR | S_IRUSR | S_IWUSR | S_IRGRP,
++ "%s/generic", scsidp->devfs_name);
+ error = cdev_add(cdev, MKDEV(SCSI_GENERIC_MAJOR, k), 1);
+- if (error)
++ if (error) {
++ devfs_remove("%s/generic", scsidp->devfs_name);
+ goto out;
+-
++ }
+ sdp->cdev = cdev;
+ if (sg_sysfs_valid) {
+ struct class_device * sg_class_member;
+@@ -1520,6 +1525,7 @@
+ class_device_destroy(sg_sysfs_class, MKDEV(SCSI_GENERIC_MAJOR, k));
+ cdev_del(sdp->cdev);
+ sdp->cdev = NULL;
++ devfs_remove("%s/generic", scsidp->devfs_name);
+ put_disk(sdp->disk);
+ sdp->disk = NULL;
+ if (NULL == sdp->headfp)
+diff -ur linux-2.6.17/drivers/scsi/sr.c linux-2.6.17-devfs/drivers/scsi/sr.c
+--- linux-2.6.17/drivers/scsi/sr.c 2006-06-17 18:49:35.000000000 -0700
++++ linux-2.6.17-devfs/drivers/scsi/sr.c 2006-08-25 11:06:18.000000000 -0700
+@@ -592,6 +592,8 @@
+ get_capabilities(cd);
+ sr_vendor_init(cd);
+
++ snprintf(disk->devfs_name, sizeof(disk->devfs_name),
++ "%s/cd", sdev->devfs_name);
+ disk->driverfs_dev = &sdev->sdev_gendev;
+ set_capacity(disk, cd->capacity);
+ disk->private_data = &cd->driver;
+diff -ur linux-2.6.17/drivers/scsi/st.c linux-2.6.17-devfs/drivers/scsi/st.c
+--- linux-2.6.17/drivers/scsi/st.c 2006-06-17 18:49:35.000000000 -0700
++++ linux-2.6.17-devfs/drivers/scsi/st.c 2006-08-25 11:06:18.000000000 -0700
+@@ -35,6 +35,7 @@
+ #include <linux/spinlock.h>
+ #include <linux/blkdev.h>
+ #include <linux/moduleparam.h>
++#include <linux/devfs_fs_kernel.h>
+ #include <linux/cdev.h>
+ #include <linux/delay.h>
+ #include <linux/mutex.h>
+@@ -4053,8 +4054,23 @@
+ do_create_class_files(tpnt, dev_num, mode);
+ }
+
++ for (mode = 0; mode < ST_NBR_MODES; ++mode) {
++ /* Make sure that the minor numbers corresponding to the four
++ first modes always get the same names */
++ i = mode << (4 - ST_NBR_MODE_BITS);
++ /* Rewind entry */
++ devfs_mk_cdev(MKDEV(SCSI_TAPE_MAJOR, TAPE_MINOR(dev_num, mode, 0)),
++ S_IFCHR | S_IRUGO | S_IWUGO,
++ "%s/mt%s", SDp->devfs_name, st_formats[i]);
++ /* No-rewind entry */
++ devfs_mk_cdev(MKDEV(SCSI_TAPE_MAJOR, TAPE_MINOR(dev_num, mode, 1)),
++ S_IFCHR | S_IRUGO | S_IWUGO,
++ "%s/mt%sn", SDp->devfs_name, st_formats[i]);
++ }
++ disk->number = devfs_register_tape(SDp->devfs_name);
++
+ sdev_printk(KERN_WARNING, SDp,
+ "Attached scsi tape %s\n", tape_name(tpnt));
+ printk(KERN_WARNING "%s: try direct i/o: %s (alignment %d B)\n",
+ tape_name(tpnt), tpnt->try_dio ? "yes" : "no",
+ queue_dma_alignment(SDp->request_queue) + 1);
+@@ -4106,9 +4122,13 @@
+ scsi_tapes[i] = NULL;
+ st_nr_dev--;
+ write_unlock(&st_dev_arr_lock);
++ devfs_unregister_tape(tpnt->disk->number);
+ sysfs_remove_link(&tpnt->device->sdev_gendev.kobj,
+ "tape");
+ for (mode = 0; mode < ST_NBR_MODES; ++mode) {
++ j = mode << (4 - ST_NBR_MODE_BITS);
++ devfs_remove("%s/mt%s", SDp->devfs_name, st_formats[j]);
++ devfs_remove("%s/mt%sn", SDp->devfs_name, st_formats[j]);
+ for (j=0; j < 2; j++) {
+ class_device_destroy(st_sysfs_class,
+ MKDEV(SCSI_TAPE_MAJOR,
+diff -ur linux-2.6.17/include/scsi/scsi_device.h linux-2.6.17-devfs/include/scsi/scsi_device.h
+--- linux-2.6.17/include/scsi/scsi_device.h 2006-06-17 18:49:35.000000000 -0700
++++ linux-2.6.17-devfs/include/scsi/scsi_device.h 2006-08-25 11:06:18.000000000 -0700
+@@ -74,6 +74,7 @@
+ unsigned sector_size; /* size in bytes */
+
+ void *hostdata; /* available to low-level driver */
++ char devfs_name[256]; /* devfs junk */
+ char type;
+ char scsi_level;
+ char inq_periph_qual; /* PQ from INQUIRY data */
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-02 19:26:31 +0000