On Fri, Oct 04, 2019 at 08:51:04PM +0800, Kai-Heng Feng wrote: > r8152 may fail to establish network connection after resume from system > suspend. > > If the USB port connects to r8152 lost its power during system suspend, > the MAC address was written before is lost. The reason is that The MAC > address doesn't get written again in its reset_resume callback. > > So let's set MAC address again in reset_resume callback. Also remove > unnecessary lock as no other locking attempt will happen during > reset_resume. This is two separate seemingly unrelated, other than locality in the code, changes. One is a fix, the other seems to be a cleanup. Perhaps they would be better addressed in separate patches. > Signed-off-by: Kai-Heng Feng <kai.heng.feng@xxxxxxxxxxxxx> > --- > drivers/net/usb/r8152.c | 3 +-- > 1 file changed, 1 insertion(+), 2 deletions(-) > > diff --git a/drivers/net/usb/r8152.c b/drivers/net/usb/r8152.c > index 08726090570e..cee9fef925cd 100644 > --- a/drivers/net/usb/r8152.c > +++ b/drivers/net/usb/r8152.c > @@ -4799,10 +4799,9 @@ static int rtl8152_reset_resume(struct usb_interface *intf) > struct r8152 *tp = usb_get_intfdata(intf); > > clear_bit(SELECTIVE_SUSPEND, &tp->flags); > - mutex_lock(&tp->control); > tp->rtl_ops.init(tp); > queue_delayed_work(system_long_wq, &tp->hw_phy_work, 0); > - mutex_unlock(&tp->control); > + set_ethernet_addr(tp); > return rtl8152_resume(intf); > } > > -- > 2.17.1 >
