kernel-yocto: allow custom non-meta, SRCREV format builds

When custom respositories are built (like a pure kernel.org
repo), the machine_meta SRCREV format is not applicable. As
such, we shouldn't check for the meta branch and we shouldn't
only check SRCREV_machine based revisions.

(From OE-Core rev: bf555ee3305114483aa5083cde1accd23b46a39e)

Signed-off-by: Bruce Ashfield <bruce.ashfield@windriver.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

1 files changed, 22 insertions, 20 deletions

diff --git a/meta/classes/kernel-yocto.bbclass b/meta/classes/kernel-yocto.bbclass
index 69620f0a42..4f912bff2f 100644
--- a/meta/classes/kernel-yocto.bbclass
+++ b/meta/classes/kernel-yocto.bbclass
@@ -72,6 +72,10 @@ do_patch() {
 
         machine_branch="${@ get_machine_branch(d, "${KBRANCH}" )}"
         machine_srcrev="${SRCREV_machine}"
+        if [ -z "${machine_srcrev}" ]; then
+                # fallback to SRCREV if a non machine_meta tree is being built
+                machine_srcrev="${SRCREV}"
+        fi
 
         # if we have a defined/set meta branch we should not be generating
         # any meta data. The passed branch has what we need.
@@ -119,17 +123,6 @@ do_patch() {
                 exit 1
         fi
 
-        # see if the branch we are about to patch has been properly reset to the defined
-        # SRCREV .. if not, we reset it.
-        branch_head=`git rev-parse HEAD`
-        if [ "${machine_srcrev}" != "AUTOINC" ]; then
-                if [ "${machine_srcrev}" != "${branch_head}" ]; then
-                        current_branch=`git rev-parse --abbrev-ref HEAD`
-                        git branch "$current_branch-orig"
-                        git reset --hard ${machine_srcrev}
-                fi
-        fi
-
         # executes and modifies the source tree as required
         patchme ${KMACHINE}
         if [ $? -ne 0 ]; then
@@ -299,17 +292,16 @@ do_validate_branches() {
         machine_branch="${@ get_machine_branch(d, "${KBRANCH}" )}"
         machine_srcrev="${SRCREV_machine}"
 
-        # 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" ] || [ "${machine_srcrev}" = "INVALID" ] ||
-           [ "${machine_srcrev}" = "" ]; then
+        if [ "${machine_srcrev}" = "AUTOINC" ]; then
                 bbnote "INFO: SRCREV validation is not required for AUTOREV or empty/invalid settings, returning"
+        elif [ "${machine_srcrev}" = "" ] && [ "${SRCREV}" != "AUTOINC" ]; then
+                # SRCREV_machine_<MACHINE> was not set. This means that a custom recipe
+                # that doesn't use the SRCREV_FORMAT "machine_meta" is being built. In
+                # this case, we need to reset to the give SRCREV before heading to patching
+                bbnote "INFO: custom recipe is being built, forcing SRCREV to ${SRCREV}"
+                force_srcrev="${SRCREV}"
         else
                 git cat-file -t ${machine_srcrev} > /dev/null
                 if [ if $? -ne 0 ]; then
@@ -317,10 +309,10 @@ do_validate_branches() {
                         echo "The kernel source tree may be out of sync"
                         exit 1
                 fi
+                force_srcrev=${machine_srcrev}
         fi
 
         ## KMETA branch validation.
-        ## We do validation if the meta branch exists, and AUTOREV hasn't been set
         target_meta_head="${SRCREV_meta}"
         if [ "${target_meta_head}" = "AUTOINC" ] || [ "${target_meta_head}" = "" ]; then
                 bbnote "INFO: SRCREV validation skipped for AUTOREV or empty meta branch"
@@ -345,6 +337,16 @@ do_validate_branches() {
         fi
 
         git checkout -q -f ${machine_branch}
+        if [ -n "${force_srcrev}" ]; then
+                # see if the branch we are about to patch has been properly reset to the defined
+                # SRCREV .. if not, we reset it.
+                branch_head=`git rev-parse HEAD`
+                if [ "${force_srcrev}" != "${branch_head}" ]; then
+                        current_branch=`git rev-parse --abbrev-ref HEAD`
+                        git branch "$current_branch-orig"
+                        git reset --hard ${force_srcrev}
+                fi
+        fi
 }
 
 # Many scripts want to look in arch/$arch/boot for the bootable