kernel-yocto: propagate in tree defconfigs to WORKDIR

As reported by Steffen Pankratz <Steffen.Pankratz@elektrobit.com>, the
previous logic of KBUILD_DEFCONFIG processing would not propagate an in
tree defcofig to WORKDIR if one was not already present.

We fix the propagation by copying the in tee config if a defconfig is
not already in WORKDIR.

Additionally we only warn (versus copying) if an in tree configuration
is specified, is different than the WORKDIR version and isn't copied.

(From OE-Core rev: 58cc903a5156063b24e48011438a709cb6e09f54)

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

1 files changed, 6 insertions, 5 deletions

diff --git a/meta/classes/kernel-yocto.bbclass b/meta/classes/kernel-yocto.bbclass
index 0dd5b48513..88588d7cac 100644
--- a/meta/classes/kernel-yocto.bbclass
+++ b/meta/classes/kernel-yocto.bbclass
@@ -97,14 +97,15 @@ do_kernel_metadata() {
         if [ -n "${KBUILD_DEFCONFIG}" ]; then
                 if [ -f "${S}/arch/${ARCH}/configs/${KBUILD_DEFCONFIG}" ]; then
                         if [ -f "${WORKDIR}/defconfig" ]; then
-                                # If the two defconfigs are the same, leave the existing one in place
+                                # If the two defconfig's are different, warn that we didn't overwrite the
+                                # one already placed in WORKDIR by the fetcher.
                                 cmp "${WORKDIR}/defconfig" "${S}/arch/${ARCH}/configs/${KBUILD_DEFCONFIG}"
                                 if [ $? -ne 0 ]; then
-                                        bbnote "defconfig detected in WORKDIR. ${KBUILD_DEFCONFIG} skipped"
-                                else
-                                        cp -f ${S}/arch/${ARCH}/configs/${KBUILD_DEFCONFIG} ${WORKDIR}/defconfig
-                                        sccs="${WORKDIR}/defconfig"
+                                        bbwarn "defconfig detected in WORKDIR. ${KBUILD_DEFCONFIG} skipped"
                                 fi
+                        else
+                                cp -f ${S}/arch/${ARCH}/configs/${KBUILD_DEFCONFIG} ${WORKDIR}/defconfig
+                                sccs="${WORKDIR}/defconfig"
                         fi
                 else
                         bbfatal "A KBUILD_DECONFIG '${KBUILD_DEFCONFIG}' was specified, but not present in the source tree"