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[PATCH] USB: convert usbfs/inode.c to use usb notifiers

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Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This commit is contained in:
Greg Kroah-Hartman 2005-06-20 21:15:16 -07:00
parent a7b986b3e1
commit 54a5c4cd2e
4 changed files with 31 additions and 28 deletions
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2
drivers/usb/core/hcd.c
View file

@ -793,7 +793,6 @@ static int usb_register_bus(struct usb_bus *bus)
up (&usb_bus_list_lock);
usb_notify_add_bus(bus);
usbfs_add_bus (bus);
usbmon_notify_bus_add (bus);
dev_info (bus->controller, "new USB bus registered, assigned bus number %d\n", bus->busnum);
@ -823,7 +822,6 @@ static void usb_deregister_bus (struct usb_bus *bus)
usb_notify_remove_bus(bus);
usbmon_notify_bus_remove (bus);
usbfs_remove_bus (bus);
clear_bit (bus->busnum, busmap.busmap);

10
drivers/usb/core/hcd.h
View file

@ -400,23 +400,13 @@ static inline int hcd_bus_resume (struct usb_bus *bus)
* these are expected to be called from the USB core/hub thread
* with the kernel lock held
*/
extern void usbfs_add_bus(struct usb_bus *bus);
extern void usbfs_remove_bus(struct usb_bus *bus);
extern void usbfs_add_device(struct usb_device *dev);
extern void usbfs_remove_device(struct usb_device *dev);
extern void usbfs_update_special (void);
extern int usbfs_init(void);
extern void usbfs_cleanup(void);
#else /* CONFIG_USB_DEVICEFS */
static inline void usbfs_add_bus(struct usb_bus *bus) {}
static inline void usbfs_remove_bus(struct usb_bus *bus) {}
static inline void usbfs_add_device(struct usb_device *dev) {}
static inline void usbfs_remove_device(struct usb_device *dev) {}
static inline void usbfs_update_special (void) {}
static inline int usbfs_init(void) { return 0; }
static inline void usbfs_cleanup(void) { }

3
drivers/usb/core/hub.c
View file

@ -1136,7 +1136,6 @@ void usb_disconnect(struct usb_device **pdev)
*/
dev_dbg (&udev->dev, "unregistering device\n");
release_address(udev);
usbfs_remove_device(udev);
usb_remove_sysfs_dev_files(udev);
/* Avoid races with recursively_mark_NOTATTACHED() */
@ -1374,8 +1373,6 @@ int usb_new_device(struct usb_device *udev)
/* USB device state == configured ... usable */
usb_notify_add_device(udev);
/* add a /proc/bus/usb entry */
usbfs_add_device(udev);
return 0;
fail:

44
drivers/usb/core/inode.c
View file

@ -39,6 +39,7 @@
#include <linux/usbdevice_fs.h>
#include <linux/smp_lock.h>
#include <linux/parser.h>
#include <linux/notifier.h>
#include <asm/byteorder.h>
#include "usb.h"
#include "hcd.h"
@ -619,7 +620,7 @@ void usbfs_update_special (void)
}
}
void usbfs_add_bus(struct usb_bus *bus)
static void usbfs_add_bus(struct usb_bus *bus)
{
struct dentry *parent;
char name[8];
@ -642,12 +643,9 @@ void usbfs_add_bus(struct usb_bus *bus)
err ("error creating usbfs bus entry");
return;
}
usbfs_update_special();
usbfs_conn_disc_event();
}
void usbfs_remove_bus(struct usb_bus *bus)
static void usbfs_remove_bus(struct usb_bus *bus)
{
if (bus->usbfs_dentry) {
fs_remove_file (bus->usbfs_dentry);
@ -659,12 +657,9 @@ void usbfs_remove_bus(struct usb_bus *bus)
remove_special_files();
num_buses = 0;
}
usbfs_update_special();
usbfs_conn_disc_event();
}
void usbfs_add_device(struct usb_device *dev)
static void usbfs_add_device(struct usb_device *dev)
{
char name[8];
int i;
@ -690,12 +685,9 @@ void usbfs_add_device(struct usb_device *dev)
}
if (dev->usbfs_dentry->d_inode)
dev->usbfs_dentry->d_inode->i_size = i_size;
usbfs_update_special();
usbfs_conn_disc_event();
}
void usbfs_remove_device(struct usb_device *dev)
static void usbfs_remove_device(struct usb_device *dev)
{
struct dev_state *ds;
struct siginfo sinfo;
@ -716,10 +708,33 @@ void usbfs_remove_device(struct usb_device *dev)
kill_proc_info_as_uid(ds->discsignr, &sinfo, ds->disc_pid, ds->disc_uid, ds->disc_euid);
}
}
}
static int usbfs_notify(struct notifier_block *self, unsigned long action, void *dev)
{
switch (action) {
case USB_DEVICE_ADD:
usbfs_add_device(dev);
break;
case USB_DEVICE_REMOVE:
usbfs_remove_device(dev);
break;
case USB_BUS_ADD:
usbfs_add_bus(dev);
break;
case USB_BUS_REMOVE:
usbfs_remove_bus(dev);
}
usbfs_update_special();
usbfs_conn_disc_event();
return NOTIFY_OK;
}
static struct notifier_block usbfs_nb = {
.notifier_call = usbfs_notify,
};
/* --------------------------------------------------------------------- */
static struct proc_dir_entry *usbdir = NULL;
@ -732,6 +747,8 @@ int __init usbfs_init(void)
if (retval)
return retval;
usb_register_notify(&usbfs_nb);
/* create mount point for usbfs */
usbdir = proc_mkdir("usb", proc_bus);
@ -740,6 +757,7 @@ int __init usbfs_init(void)
void usbfs_cleanup(void)
{
usb_unregister_notify(&usbfs_nb);
unregister_filesystem(&usb_fs_type);
if (usbdir)
remove_proc_entry("usb", proc_bus);