linux-yocto: Make LINUX_VERSION_EXTENSION weaker

This allows for other layers to override this variable in addition
to providing the distro or local.conf to override it.

Signed-off-by: Saul Wold <sgw@linux.intel.com>
Signed-off-by: Ross Burton <ross.burton@intel.com>

diff --git a/meta/recipes-kernel/linux/linux-yocto.inc b/meta/recipes-kernel/linux/linux-yocto.inc
index aec06c2427d9696655f8ee8166f916d1ded87bd7..1b8ffd0c17ef5278ae79302c16cab1b61aaaa58c 100644 (file)
--- a/meta/recipes-kernel/linux/linux-yocto.inc
+++ b/meta/recipes-kernel/linux/linux-yocto.inc
@@ -49,7 +49,7 @@ KCONF_AUDIT_LEVEL ?= "1"
 KCONF_BSP_AUDIT_LEVEL ?= "0"
 KMETA_AUDIT ?= "yes"
 
-LINUX_VERSION_EXTENSION ?= "-yocto-${LINUX_KERNEL_TYPE}"
+LINUX_VERSION_EXTENSION ??= "-yocto-${LINUX_KERNEL_TYPE}"
 
 # Pick up shared functions
 inherit kernel