TP_ACPI_HKEY_KBD_LIGHT_MASK 2434 drivers/platform/x86/thinkpad_acpi.c if (m & TP_ACPI_HKEY_KBD_LIGHT_MASK) { TP_ACPI_HKEY_KBD_LIGHT_MASK 5431 drivers/platform/x86/thinkpad_acpi.c TP_ACPI_HKEY_KBD_LIGHT_MASK);