diff --git a/import-layers/yocto-poky/meta/classes/kernel-yocto.bbclass b/import-layers/yocto-poky/meta/classes/kernel-yocto.bbclass
index 1ca0756..663c655 100644
--- a/import-layers/yocto-poky/meta/classes/kernel-yocto.bbclass
+++ b/import-layers/yocto-poky/meta/classes/kernel-yocto.bbclass
@@ -107,20 +107,31 @@
 				cmp "${WORKDIR}/defconfig" "${S}/arch/${ARCH}/configs/${KBUILD_DEFCONFIG}"
 				if [ $? -ne 0 ]; then
 					bbwarn "defconfig detected in WORKDIR. ${KBUILD_DEFCONFIG} skipped"
+				else
+					cp -f ${S}/arch/${ARCH}/configs/${KBUILD_DEFCONFIG} ${WORKDIR}/defconfig
 				fi
 			else
 				cp -f ${S}/arch/${ARCH}/configs/${KBUILD_DEFCONFIG} ${WORKDIR}/defconfig
-				sccs="${WORKDIR}/defconfig"
 			fi
+			sccs="${WORKDIR}/defconfig"
 		else
-			bbfatal "A KBUILD_DECONFIG '${KBUILD_DEFCONFIG}' was specified, but not present in the source tree"
+			bbfatal "A KBUILD_DEFCONFIG '${KBUILD_DEFCONFIG}' was specified, but not present in the source tree"
 		fi
 	fi
 
-	sccs="$sccs ${@" ".join(find_sccs(d))}"
+	sccs_from_src_uri="${@" ".join(find_sccs(d))}"
 	patches="${@" ".join(find_patches(d))}"
 	feat_dirs="${@" ".join(find_kernel_feature_dirs(d))}"
 
+	# a quick check to make sure we don't have duplicate defconfigs
+	# If there's a defconfig in the SRC_URI, did we also have one from
+	# the KBUILD_DEFCONFIG processing above ?
+	if [ -n "$sccs" ]; then
+	    # we did have a defconfig from above. remove any that might be in the src_uri
+	    sccs_from_src_uri=$(echo $sccs_from_src_uri | awk '{ if ($0!="defconfig") { print $0 } }' RS=' ')
+	fi
+	sccs="$sccs $sccs_from_src_uri"
+
 	# check for feature directories/repos/branches that were part of the
 	# SRC_URI. If they were supplied, we convert them into include directives
 	# for the update part of the process
@@ -143,6 +154,12 @@
 
 	# expand kernel features into their full path equivalents
 	bsp_definition=$(spp ${includes} --find -DKMACHINE=${KMACHINE} -DKTYPE=${LINUX_KERNEL_TYPE})
+	if [ -z "$bsp_definition" ]; then
+		echo "$sccs" | grep -q defconfig
+		if [ $? -ne 0 ]; then
+			bbfatal_log "Could not locate BSP definition for ${KMACHINE}/${LINUX_KERNEL_TYPE} and no defconfig was provided"
+		fi
+	fi
 	meta_dir=$(kgit --meta)
 
 	# run1: pull all the configuration fragments, no matter where they come from