recipes-kernel/linux/*: Standardize use of KERNEL_FEATURES_INTEL_COMMON

Previously, some recipes hard set it to empty, and some recipes did not
set it at all. So in some cases, it acted like a global variable you
could modify, and in others you could only append to it. This behavior
made it difficult to use (which I doubt anyone was doing).

This patch changes the variable to be soft set to empty across all
recipes. This way it can be used to globally change meta-intel kernels
through a conf file, or individually in the different versioned recipes
should the need arise.

Signed-off-by: California Sullivan <california.l.sullivan@intel.com>
Signed-off-by: Saul Wold <sgw@linux.intel.com>

1 files changed, 1 insertions, 2 deletions

diff --git a/common/recipes-kernel/linux/linux-intel_4.9.bb b/common/recipes-kernel/linux/linux-intel_4.9.bb
index aebbedf1..46db6632 100644
--- a/common/recipes-kernel/linux/linux-intel_4.9.bb
+++ b/common/recipes-kernel/linux/linux-intel_4.9.bb
@@ -11,13 +11,12 @@ SRC_URI = "git://github.com/01org/linux-intel-4.9.git;protocol=https;name=machin
 LINUX_VERSION ?= "4.9.20"
 LINUX_VERSION_EXTENSION = "-intel-pk-${LINUX_KERNEL_TYPE}"
 
-
 PV = "${LINUX_VERSION}+git${SRCPV}"
 
 KMETA = "kernel-meta"
 KCONF_BSP_AUDIT_LEVEL = "2"
 
-KERNEL_FEATURES_INTEL_COMMON = ""
+KERNEL_FEATURES_INTEL_COMMON ?= ""
 
 COMPATIBLE_MACHINE_core2-32-intel-common = "${MACHINE}"
 KMACHINE_core2-32-intel-common = "intel-core2-32"