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deprecate PHYSDEV* keys
deprecate PHYSDEV* values in the uevent environment These values are no longer needed and inconsistent with the stacking of class devices. The event environment should not carry properties of a parent device. The key PHYSDEVDRIVER is available as DRIVER, PHYDEVBUS is indentical SUBSYSTEM. Class devices should not carry any of these values. Signed-off-by: Kay Sievers <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]>
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3 changed files with 20 additions and 4 deletions
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@ -361,7 +361,7 @@ static int class_uevent(struct kset *kset, struct kobject *kobj, char **envp,
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pr_debug("%s - name = %s\n", __FUNCTION__, class_dev->class_id);
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if (class_dev->dev) {
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/* add physical device, backing this device */
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/* add device, backing this class device (deprecated) */
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struct device *dev = class_dev->dev;
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char *path = kobject_get_path(&dev->kobj, GFP_KERNEL);
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@ -149,17 +149,21 @@ static int dev_uevent(struct kset *kset, struct kobject *kobj, char **envp,
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"MINOR=%u", MINOR(dev->devt));
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}
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/* add bus name of physical device */
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/* add bus name (same as SUBSYSTEM, deprecated) */
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if (dev->bus)
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add_uevent_var(envp, num_envp, &i,
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buffer, buffer_size, &length,
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"PHYSDEVBUS=%s", dev->bus->name);
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/* add driver name of physical device */
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if (dev->driver)
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/* add driver name (PHYSDEV* values are deprecated)*/
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if (dev->driver) {
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add_uevent_var(envp, num_envp, &i,
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buffer, buffer_size, &length,
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"DRIVER=%s", dev->driver->name);
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add_uevent_var(envp, num_envp, &i,
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buffer, buffer_size, &length,
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"PHYSDEVDRIVER=%s", dev->driver->name);
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}
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/* terminate, set to next free slot, shrink available space */
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envp[i] = NULL;
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