On Wed, Oct 20, 2021 at 03:44:23PM +0800, lianzhi chang wrote: > Switching from the desktop environment to the tty environment, > the state of the keyboard led lights and the state of the keyboard > lock are inconsistent. This is because the attribute kb->kbdmode > of the tty bound in the desktop environment (xorg) is set to Xorg > VC_OFF, which causes the ledstate and kb->ledflagstate > values of the bound tty to always be 0, which causes the switch > from the desktop When to the tty environment, the LED light > status is inconsistent with the keyboard lock status. As per Dmitry's remark you need elaborate in the commit message why you can't do as he suggested. ... Accordingly to what I see the below has some trailing white spaces, can you remove them? > +static void kbd_update_ledstate(struct input_dev *dev) > +{ > + unsigned long leds = (unsigned long)ledstate; Why casting? > + > + if (test_bit(EV_LED, dev->evbit)) { > + if (ledstate == -1U) This is a bit weird, but I see that this should be changed in entire module. > + ledstate = 0; > + if (!!test_bit(LED_NUML, dev->led) != !!test_bit(VC_NUMLOCK, &leds)) > + ledstate ^= BIT(VC_NUMLOCK); > + if (!!test_bit(LED_CAPSL, dev->led) != !!test_bit(VC_CAPSLOCK, &leds)) > + ledstate ^= BIT(VC_CAPSLOCK); > + if (!!test_bit(LED_SCROLLL, dev->led) != !!test_bit(VC_SCROLLOCK, &leds)) > + ledstate ^= BIT(VC_SCROLLOCK); > + } > +} ... Can this... > unsigned int leds; > unsigned long flags; > + struct kbd_struct *kb = kbd_table + fg_console; > + > + if (kb->kbdmode == VC_OFF) > + return; ...be written as struct kbd_struct *kb; unsigned int leds; unsigned long flags; kb = kbd_table + fg_console; if (kb->kbdmode == VC_OFF) return; ? -- With Best Regards, Andy Shevchenko