volume_ctrl_forbidden 336 drivers/platform/x86/thinkpad_acpi.c u16 volume_ctrl_forbidden:1; volume_ctrl_forbidden 7857 drivers/platform/x86/thinkpad_acpi.c if (unlikely(!tp_warned.volume_ctrl_forbidden)) { volume_ctrl_forbidden 7858 drivers/platform/x86/thinkpad_acpi.c tp_warned.volume_ctrl_forbidden = 1;