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Driver core: add uevent vars for devices of a class

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Devices converted from class_device to device should have
the same uevent keys as the original class_device had. We
search up the parents until we find the first bus device and
add the (already deprecated) PHYDEV* values.

Signed-off-by: Kay Sievers <kay.sievers@novell.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This commit is contained in:
Kay Sievers 2006-10-07 21:54:55 +02:00 committed by Greg Kroah-Hartman
parent bf0acc3302
commit 239378f16a
1 changed files with 34 additions and 12 deletions
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44
drivers/base/core.c
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@ -154,25 +154,47 @@ static int dev_uevent(struct kset *kset, struct kobject *kobj, char **envp,
"MINOR=%u", MINOR(dev->devt)); "MINOR=%u", MINOR(dev->devt));
} }
#ifdef CONFIG_SYSFS_DEPRECATED if (dev->driver)
/* add bus name (same as SUBSYSTEM, deprecated) */
if (dev->bus)
add_uevent_var(envp, num_envp, &i,
buffer, buffer_size, &length,
"PHYSDEVBUS=%s", dev->bus->name);
#endif
/* add driver name (PHYSDEV* values are deprecated)*/
if (dev->driver) {
add_uevent_var(envp, num_envp, &i, add_uevent_var(envp, num_envp, &i,
buffer, buffer_size, &length, buffer, buffer_size, &length,
"DRIVER=%s", dev->driver->name); "DRIVER=%s", dev->driver->name);
#ifdef CONFIG_SYSFS_DEPRECATED #ifdef CONFIG_SYSFS_DEPRECATED
if (dev->class) {
struct device *parent = dev->parent;
/* find first bus device in parent chain */
while (parent && !parent->bus)
parent = parent->parent;
if (parent && parent->bus) {
const char *path;
path = kobject_get_path(&parent->kobj, GFP_KERNEL);
add_uevent_var(envp, num_envp, &i,
buffer, buffer_size, &length,
"PHYSDEVPATH=%s", path);
kfree(path);
add_uevent_var(envp, num_envp, &i,
buffer, buffer_size, &length,
"PHYSDEVBUS=%s", parent->bus->name);
if (parent->driver)
add_uevent_var(envp, num_envp, &i,
buffer, buffer_size, &length,
"PHYSDEVDRIVER=%s", parent->driver->name);
}
} else if (dev->bus) {
add_uevent_var(envp, num_envp, &i,
buffer, buffer_size, &length,
"PHYSDEVBUS=%s", dev->bus->name);
if (dev->driver)
add_uevent_var(envp, num_envp, &i, add_uevent_var(envp, num_envp, &i,
buffer, buffer_size, &length, buffer, buffer_size, &length,
"PHYSDEVDRIVER=%s", dev->driver->name); "PHYSDEVDRIVER=%s", dev->driver->name);
#endif
} }
#endif
/* terminate, set to next free slot, shrink available space */ /* terminate, set to next free slot, shrink available space */
envp[i] = NULL; envp[i] = NULL;