Hi, commit ed013214afa7 ("ACPI / init: Make it possible to override _REV") is in today's linux-next tree (i.e., next-20150702) adding the following hunk to drivers/acpi/Kconfig: --- a/drivers/acpi/Kconfig +++ b/drivers/acpi/Kconfig @@ -428,6 +428,26 @@ config XPOWER_PMIC_OPREGION help This config adds ACPI operation region support for XPower AXP288 PMIC. ++config ACPI_REV_OVERRIDE_POSSIBLE + bool "Allow supported ACPI revision to be overriden" + depends on X86 + default y [...] By having a close look at the first added line, we can see that '+config ACPI_...' is added. To my great surprise, it's valid Kconfig syntax. How is that possible? IMHO it's an invalid token, such that Kconfig should complain about it. Or do I miss something? Kind regards, Valentin -- To unsubscribe from this list: send the line "unsubscribe linux-kbuild" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html