In typec_set_pwr_opmode(), if partner support PD, it need to send uevent.
Cc: stable@vger.kernel.org Signed-off-by: Linyu Yuan quic_linyyuan@quicinc.com --- drivers/usb/typec/class.c | 1 + 1 file changed, 1 insertion(+)
diff --git a/drivers/usb/typec/class.c b/drivers/usb/typec/class.c index bbc46b1..3da94f712 100644 --- a/drivers/usb/typec/class.c +++ b/drivers/usb/typec/class.c @@ -1851,6 +1851,7 @@ void typec_set_pwr_opmode(struct typec_port *port, partner->usb_pd = 1; sysfs_notify(&partner_dev->kobj, NULL, "supports_usb_power_delivery"); + kobject_uevent(&partner_dev->kobj, KOBJ_CHANGE); } put_device(partner_dev); }
On Fri, Jul 01, 2022 at 09:01:55AM +0800, Linyu Yuan wrote:
In typec_set_pwr_opmode(), if partner support PD, it need to send uevent.
I do not understand, you need to explain this better.
Cc: stable@vger.kernel.org
What commit does this fix?
Signed-off-by: Linyu Yuan quic_linyyuan@quicinc.com
drivers/usb/typec/class.c | 1 + 1 file changed, 1 insertion(+)
diff --git a/drivers/usb/typec/class.c b/drivers/usb/typec/class.c index bbc46b1..3da94f712 100644 --- a/drivers/usb/typec/class.c +++ b/drivers/usb/typec/class.c @@ -1851,6 +1851,7 @@ void typec_set_pwr_opmode(struct typec_port *port, partner->usb_pd = 1; sysfs_notify(&partner_dev->kobj, NULL, "supports_usb_power_delivery");
kobject_uevent(&partner_dev->kobj, KOBJ_CHANGE);
Why is this needed? Who will recieve this uevent? What will happen when the uevent is sent? What userspace code requires this?
thanks,
greg k-h
linux-stable-mirror@lists.linaro.org
-
Greg Kroah-Hartman -
Linyu Yuan