kernel-yocto: remove branch existence checking in do_validate_branches

Now that the fetcher will enforce branch existence, we no longer need to
confirm that a branch exists, and that it was the branch requested to
be built.

We know the branch exists and we'll confirm that the specified SRCREV
is going to be built after we've patched the tree.

Signed-off-by: Bruce Ashfield <bruce.ashfield@windriver.com>

1 files changed, 8 insertions, 21 deletions

diff --git a/meta/classes/kernel-yocto.bbclass b/meta/classes/kernel-yocto.bbclass
index 3bef841ae8..d51748e556 100644
--- a/meta/classes/kernel-yocto.bbclass
+++ b/meta/classes/kernel-yocto.bbclass
@@ -309,13 +309,19 @@ python do_kernel_configcheck() {
 # their SRCREV values. If they are NOT on the right commits, the branches
 # are corrected to the proper commit.
 do_validate_branches() {
+	set +e
 	cd ${S}
 	export KMETA=${KMETA}
 
 	machine_branch="${@ get_machine_branch(d, "${KBRANCH}" )}"
 	machine_srcrev="${SRCREV_machine}"
 
-	set +e
+	# if the machine branch doesn't exist, lets build master
+	git show-ref --quiet --verify -- "refs/heads/${machine_branch}"
+	if [ $? -eq 1 ]; then
+		machine_branch = "master"
+	fi
+
 	# if SRCREV is AUTOREV it shows up as AUTOINC there's nothing to
 	# check and we can exit early
 	if [ "${machine_srcrev}" = "AUTOINC" ] || [ "${machine_srcrev}" = "INVALID" ] ||
@@ -324,19 +330,6 @@ do_validate_branches() {
 		return
 	fi
 
-	# If something other than the default branch was requested, it must
-	# exist in the tree, and it's a hard error if it wasn't
-	git show-ref --quiet --verify -- "refs/heads/${machine_branch}"
-	if [ $? -eq 1 ]; then
-		if [ -n "${KBRANCH_DEFAULT}" ] && 
-                      [ "${machine_branch}" != "${KBRANCH_DEFAULT}" ]; then
-			echo "ERROR: branch ${machine_branch} was set for kernel compilation, "
-			echo "       but it does not exist in the kernel repository."
-			echo "       Check the value of KBRANCH and ensure that it describes"
-			echo "       a valid banch in the source kernel repository"
-			exit 1
-		fi
-	fi
 
 	git cat-file -t ${machine_srcrev} > /dev/null
 	if [ if $? -ne 0 ]; then
@@ -369,13 +362,7 @@ do_validate_branches() {
 		fi
 	fi
 
-	git show-ref --quiet --verify -- "refs/heads/${machine_branch}"
-	if [ $? -eq 0 ]; then
-		# restore the branch for builds
-		git checkout -q -f ${machine_branch}
-        else
-	        git checkout -q master
-	fi
+	git checkout -q -f ${machine_branch}
 }
 
 # Many scripts want to look in arch/$arch/boot for the bootable