[OE-core] [PATCH v3 1/1] kernel.bbclass: Give sanity check function an opt-out variable

[California Sullivan]

Having no opt-out method and adding the task to linux-yocto.inc was
causing issues. For example, linux-yocto-dev would often fail because
it uses AUTOREV with no way to dynamically change the PV.

Add a variable to turn off the sanity check, allowing an easy opt out,
and set the opt-out variable in linux-yocto-dev, fixing the issue with
AUTOREV.

v2 changes:
 * Update commit message, removing typos and highlighting the patch will
   effect all kernels.

v3 changes:
 * It was decided the change was too invasive, so move function back to
   linux-yocto.inc so that what it doesn't affect all kernels. Remove
   note about effecting all kernels.

Signed-off-by: California Sullivan <california.l.sullivan at intel.com>
---
 meta/classes/kernel.bbclass                  | 6 +++++-
 meta/recipes-kernel/linux/linux-yocto-dev.bb | 1 +
 2 files changed, 6 insertions(+), 1 deletion(-)

diff --git a/meta/classes/kernel.bbclass b/meta/classes/kernel.bbclass
index 97cba92..1fa33e2 100644
--- a/meta/classes/kernel.bbclass
+++ b/meta/classes/kernel.bbclass
@@ -325,6 +325,10 @@ do_install[prefuncs] += "package_get_auto_pr"
 
 # Must be ran no earlier than after do_kernel_checkout or else Makefile won't be in ${S}/Makefile
 do_kernel_version_sanity_check() {
+	if [ "x${KERNEL_VERSION_SANITY_SKIP}" = "x1" ]; then
+		exit 0
+	fi
+
 	# The Makefile determines the kernel version shown at runtime
 	# Don't use KERNEL_VERSION because the headers it grabs the version from aren't generated until do_compile
 	VERSION=$(grep "^VERSION =" ${S}/Makefile | sed s/.*=\ *//)
@@ -348,7 +352,7 @@ do_kernel_version_sanity_check() {
 	reg="${reg}${EXTRAVERSION}"
 
 	if [ -z `echo ${PV} | grep -E "${reg}"` ]; then
-		bbfatal "Package Version (${PV}) does not match of kernel being built (${vers}). Please update the PV variable to match the kernel source."
+		bbfatal "Package Version (${PV}) does not match of kernel being built (${vers}). Please update the PV variable to match the kernel source or set KERNEL_VERSION_SANITY_SKIP=\"1\" in your recipe."
 	fi
 	exit 0
 }
diff --git a/meta/recipes-kernel/linux/linux-yocto-dev.bb b/meta/recipes-kernel/linux/linux-yocto-dev.bb
index a4e02db..d5579b2 100644
--- a/meta/recipes-kernel/linux/linux-yocto-dev.bb
+++ b/meta/recipes-kernel/linux/linux-yocto-dev.bb
@@ -43,3 +43,4 @@ KERNEL_FEATURES_append_qemux86=" cfg/sound.scc cfg/paravirt_kvm.scc"
 KERNEL_FEATURES_append_qemux86-64=" cfg/sound.scc"
 KERNEL_FEATURES_append = " ${@bb.utils.contains("TUNE_FEATURES", "mx32", " cfg/x32.scc", "" ,d)}"
 
+KERNEL_VERSION_SANITY_SKIP = "1"
-- 
2.5.5