linux-yocto: streamlined repository support + fixes

index c995a2e..c6425b2 100644
@@ -45,9 +45,6 @@ def find_urls(d):
 
 do_patch() {
 	cd ${S}
-	if [ -f ${WORKDIR}/defconfig ]; then
-	    defconfig=${WORKDIR}/defconfig
-	fi
 
 	# if kernel tools are available in-tree, they are preferred
 	# and are placed on the path before any external tools. Unless

@@ -59,16 +56,13 @@ do_patch() {
 	fi
 
 	kbranch=${KBRANCH}
-	if [ -n "${YOCTO_KERNEL_EXTERNAL_BRANCH}" ]; then
-           # switch from a generic to a specific branch
-           kbranch=${YOCTO_KERNEL_EXTERNAL_BRANCH}
-	fi
 
-	# simply ensures that a branch of the right name has been created
-	if [ -n "${YOCTO_KERNEL_META_DATA}" ]; then
+	# if we have a defined/set meta branch we should not be generating
+	# any meta data. The passed branch has what we need.
+	if [ -n "${KMETA}" ]; then
 		createme_flags="--disable-meta-gen"
 	fi
-	createme ${createme_flags} ${ARCH} ${kbranch} ${defconfig}
+	createme ${createme_flags} ${ARCH} ${kbranch}
 	if [ $? -ne 0 ]; then
 		echo "ERROR. Could not create ${kbranch}"
 		exit 1

@@ -95,7 +89,7 @@ do_patch() {
 	fi
 
 	# executes and modifies the source tree as required
-	patchme ${kbranch}
+	patchme ${KMACHINE}
 	if [ $? -ne 0 ]; then
 		echo "ERROR. Could not modify ${kbranch}"
 		exit 1

@@ -122,7 +116,7 @@ do_kernel_checkout() {
 		mv ${WORKDIR}/git/.git ${S}
 		rm -rf ${WORKDIR}/git/
 		cd ${S}
-		if [ -n "${YOCTO_KERNEL_META_DATA}" ] && [ -n "${KMETA}" ]; then
+		if [ -n "${KMETA}" ]; then
 			git branch -a | grep -q ${KMETA}
 			if [ $? -ne 0 ]; then
 				echo "ERROR. The branch '${KMETA}' is required and was not"

@@ -131,15 +125,6 @@ do_kernel_checkout() {
 				exit 1
 			fi
 		fi
-	 	if [ -z "${YOCTO_KERNEL_EXTERNAL_BRANCH}" ] && [ -n "${KBRANCH}" ] ; then
-			git branch -a | grep -q ${KBRANCH}
-			if [ $? -ne 0 ]; then
-				echo "ERROR. The branch '${KBRANCH}' is required and was not"
-				echo "found. Ensure that the SRC_URI points to a valid linux-yocto"
-				echo "kernel repository"
-				exit 1
-			fi
-		fi
 	fi
 	if [ -d "${WORKDIR}/git/" ] && [ ! -d "${WORKDIR}/git/.git" ]; then
 		# we build out of {S}, so ensure that ${S} is clean and present

@@ -192,7 +177,7 @@ do_kernel_configme() {
 
 	cd ${S}
 	PATH=${PATH}:${S}/scripts/util
-	configme ${configmeflags} --reconfig --output ${B} ${KBRANCH} ${KMACHINE}
+	configme ${configmeflags} --reconfig --output ${B} ${LINUX_KERNEL_TYPE} ${KMACHINE}
 	if [ $? -ne 0 ]; then
 		echo "ERROR. Could not configure ${KMACHINE}-${LINUX_KERNEL_TYPE}"
 		exit 1

@@ -221,51 +206,71 @@ python do_kernel_configcheck() {
 do_validate_branches() {
 	cd ${S}
 
-	# nothing to do if bootstrapping
- 	if [ -n "${YOCTO_KERNEL_EXTERNAL_BRANCH}" ]; then
- 	 	return
- 	fi
-
-	# nothing to do if SRCREV is AUTOREV
+	set +e
+	# if SRCREV is AUTOREV it shows up as AUTOINC there's nothing to
+	# check and we can exit early
 	if [ "${SRCREV_machine}" = "AUTOINC" ]; then
-		# restore the branch for builds
-		git checkout -f ${KBRANCH}
+		return
+	fi
+
+	# if the branches do not exist, then there's nothing to check either
+	git show-ref --quiet --verify -- "refs/heads/${KBRANCH}"
+	if [ $? -eq 1 ]; then
 		return
 	fi
 
  	branch_head=`git show-ref -s --heads ${KBRANCH}`
- 	meta_head=`git show-ref -s --heads ${KMETA}`
- 	target_branch_head="${SRCREV_machine}"
- 	target_meta_head="${SRCREV_meta}"
+	if [ -z "${SRCREV_machine}" ]; then
+		target_branch_head="${SRCREV}"
+	else
+	 	target_branch_head="${SRCREV_machine}"
+	fi
+
+	if [ "${target_branch_head}" = "AUTOINC" ]; then
+		return
+	fi
 
+	# We have SRCREVs and we have branches so validation can continue!
 	current=`git branch |grep \*|sed 's/^\* //'`
-	if [ -n "$target_branch_head" ] && [ "$branch_head" != "$target_branch_head" ]; then
-		if [ -n "${KERNEL_REVISION_CHECKING}" ]; then
-			ref=`git show ${target_meta_head} 2>&1 | head -n1 || true`
-			if [ "$ref" = "fatal: bad object ${target_meta_head}" ]; then
-				echo "ERROR ${target_branch_head} is not a valid commit ID."
-				echo "The kernel source tree may be out of sync"
-				exit 1
-			else
-				echo "Forcing branch $current to ${target_branch_head}"
-				git branch -m $current $current-orig
-				git checkout -b $current ${target_branch_head}
-			fi
+	if [ -n "$target_branch_head" ] && [ "$branch_head" != "$target_branch_head" ] &&
+           [ "$target_branch_head" != "AUTOINC" ]; then
+		ref=`git show ${target_branch_head} 2>&1 | head -n1 || true`
+		if [ "$ref" = "fatal: bad object ${target_meta_head}" ]; then
+			echo "ERROR ${target_branch_head} is not a valid commit ID."
+			echo "The kernel source tree may be out of sync"
+			exit 1
+		else
+			echo "Forcing branch $current to ${target_branch_head}"
+			git branch -m $current $current-orig
+			git checkout -b $current ${target_branch_head}
 		fi
 	fi
 
+ 	meta_head=`git show-ref -s --heads ${KMETA}`
+ 	target_meta_head="${SRCREV_meta}"
+	git show-ref --quiet --verify -- "refs/heads/${KMETA}"
+	if [ $? -eq 1 ]; then
+		return
+	fi
+
+	if [ "${target_meta_head}" = "AUTOINC" ]; then
+		return
+	fi
+
 	if [ "$meta_head" != "$target_meta_head" ]; then
-		if [ -n "${KERNEL_REVISION_CHECKING}" ]; then
-			ref=`git show ${target_meta_head} 2>&1 | head -n1 || true`
-			if [ "$ref" = "fatal: bad object ${target_meta_head}" ]; then
-				echo "ERROR ${target_meta_head} is not a valid commit ID"
-				echo "The kernel source tree may be out of sync"
+		ref=`git show ${target_meta_head} 2>&1 | head -n1 || true`
+		if [ "$ref" = "fatal: bad object ${target_meta_head}" ]; then
+			echo "ERROR ${target_meta_head} is not a valid commit ID"
+			echo "The kernel source tree may be out of sync"
+			exit 1
+		else
+			echo "Forcing branch meta to ${target_meta_head}"
+			git branch -m ${KMETA} ${KMETA}-orig
+			git checkout -b ${KMETA} ${target_meta_head}
+			if [ $? -ne 0 ];then
+				echo "ERROR: could not checkout meta branch from known hash ${target_meta_head}"
 				exit 1
-			else
-				echo "Forcing branch meta to ${target_meta_head}"
-				git branch -m ${KMETA} ${KMETA}-orig
-				git checkout -b ${KMETA} ${target_meta_head}
-			fi	   
+			fi
 		fi
 	fi
 

index 754ebe5..1af22f6 100644
@@ -4,7 +4,7 @@ LIC_FILES_CHKSUM = "file://git/tools/kgit;beginline=5;endline=9;md5=e2bf4415f3d8
 
 DEPENDS = "git-native guilt-native"
 
-SRCREV = "2bbbaaa00cc70887d6d6f745b9425890d522d240"
+SRCREV = "369e67046a1b72b6447c208babd4d2065265a95e"
 PR = "r12"
 PV = "0.1+git${SRCPV}"
 

index 36dcb6e..14af91d 100644
@@ -13,6 +13,7 @@ KBRANCH_qemuppc = "yocto/standard/preempt-rt/qemu-ppc32"
 
 LINUX_VERSION ?= "3.0.24"
 LINUX_KERNEL_TYPE = "preempt-rt"
+KMETA = "meta"
 
 SRCREV_machine ?= "cf280f1dc5877d4ca43d21307222326efa68bb27"
 SRCREV_machine_qemuppc ?= "afaa5baa6a9ca9c8a03a9a3eee2ba9fba089f416"

index 7e01efb..8ec366c 100644
@@ -14,6 +14,8 @@ KBRANCH_qemuppc = "standard/preempt-rt/qemu-ppc32"
 LINUX_VERSION ?= "3.2.11"
 LINUX_KERNEL_TYPE = "preempt-rt"
 
+KMETA = "meta"
+
 SRCREV_machine ?= "3ebf4d172cf4a41d2abf09e4036f0850e08064e7"
 SRCREV_machine_qemuppc ?= "7cebfe717987f4ffa9ae90558c28f45049847c1c"
 SRCREV_meta ?= "6b3d4e09aa2531e9649f3f03827b7efbccfcec03"

index 2b61b7e..0912bee 100644
@@ -9,15 +9,14 @@ LIC_FILES_CHKSUM = "file://COPYING;md5=d7810fab7487fb0aad327b76f1be7cd7"
 # and it can be specific to the machine or shared
 # KMACHINE = "UNDEFINED"
 
-# Set this to 'preempt_rt' in the local.conf if you want a real time kernel
 LINUX_KERNEL_TYPE ?= "standard"
 
-KMETA ?= "meta"
+# KMETA ?= ""
+KBRANCH ?= "master"
+KMACHINE ?= "${MACHINE}"
 SRCREV_FORMAT ?= "meta_machine" 
 
 LINUX_VERSION_EXTENSION ?= "-yocto-${LINUX_KERNEL_TYPE}"
-KERNEL_REVISION_CHECKING ?= "t"
-YOCTO_KERNEL_META_DATA ?= "t"
 
 do_patch[depends] = "kern-tools-native:do_populate_sysroot"
 

index d3da75c..3968c62 100644
@@ -10,6 +10,8 @@ KMACHINE_qemuarm  = "yocto/standard/arm-versatile-926ejs"
 
 KBRANCH = "${KMACHINE}"
 
+KMETA = "meta"
+
 LINUX_VERSION ?= "2.6.37"
 
 SRCREV_machine_qemuarm = "b3e53a090eaa23aa82e64fa0a563a93a2b4dbb5d"

index 074b1ed..82a7224 100644
@@ -1,14 +1,21 @@
 inherit kernel
 require recipes-kernel/linux/linux-yocto.inc
 
-KMACHINE = "yocto/standard/base"
-KMACHINE_qemux86  = "yocto/standard/common-pc/base"
-KMACHINE_qemux86-64  = "yocto/standard/common-pc-64/base"
-KMACHINE_qemuppc  = "yocto/standard/qemu-ppc32"
-KMACHINE_qemumips = "yocto/standard/mti-malta32-be"
-KMACHINE_qemuarm  = "yocto/standard/arm-versatile-926ejs"
-
-KBRANCH = "${KMACHINE}"
+KBRANCH = "yocto/standard/base"
+KBRANCH_qemux86  = "yocto/standard/common-pc/base"
+KBRANCH_qemux86-64  = "yocto/standard/common-pc-64/base"
+KBRANCH_qemuppc  = "yocto/standard/qemu-ppc32"
+KBRANCH_qemumips = "yocto/standard/mti-malta32-be"
+KBRANCH_qemuarm  = "yocto/standard/arm-versatile-926ejs"
+
+# Temporary until 3.0 kernel tree is updated with machine mappings
+KMACHINE_qemux86 = "common-pc"
+KMACHINE_qemux86-64 = "common-pc-64"
+KMACHINE_qemuppc = "qemu-ppc32"
+KMACHINE_qemumips = "mti-malta32-be"
+KMACHINE_qemuarm = "arm-versatile-926ejs"
+
+KMETA = "meta"
 
 LINUX_VERSION ?= "3.0.24"
 

index 51119bb..71290bd 100644
@@ -28,6 +28,8 @@ SRCREV_meta ?= "6b3d4e09aa2531e9649f3f03827b7efbccfcec03"
 PR = "r1"
 PV = "${LINUX_VERSION}+git${SRCPV}"
 
+KMETA = "meta"
+
 SRC_URI = "git://git.yoctoproject.org/linux-yocto-3.2;protocol=git;bareclone=1;branch=${KBRANCH},meta;name=machine,meta"
 
 COMPATIBLE_MACHINE = "(qemuarm|qemux86|qemuppc|qemumips|qemux86-64)"

index 1af22f6..b6fab39 100644
@@ -4,7 +4,7 @@ LIC_FILES_CHKSUM = "file://git/tools/kgit;beginline=5;endline=9;md5=e2bf4415f3d8
 
 DEPENDS = "git-native guilt-native"
 
-SRCREV = "369e67046a1b72b6447c208babd4d2065265a95e"
+SRCREV = "9bb704df0a86578b8ae1f4c85e45089bef28e026"
 PR = "r12"
 PV = "0.1+git${SRCPV}"