On 7/2/20 5:30 PM, Andy Shevchenko wrote: > On Thu, Jul 2, 2020 at 11:55 AM Aaron Ma <aaron.ma@xxxxxxxxxxxxx> wrote: >> >> When _BCL invalid, disable thinkpad_acpi backlight brightness control. >> >> brightness_enable is already checked at the beginning, > >> Always print notice when enabled brightness control. > > Why? > Default brightness_enable = 2, so this message will always be printed as before Actually no change here. > ... > >> + pr_notice("thinkpad_acpi native brightness control enabled\n"); > > 'notice' level is quite high, why do we spam users with this? > Like above. Another reason is most thinkpads are using native gpu driver to control brightness, notice when thinkpad_acpi brightness is enabled. Aaron