When UBOOT_DTB_BINARY is set to "", the keys for signed booting are
expected to be already present in U-Boot's DTB, so don't issue warnings
for this.

Signed-off-by: Alex Kiernan <[email protected]>
---

 meta/classes/uboot-sign.bbclass | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/meta/classes/uboot-sign.bbclass b/meta/classes/uboot-sign.bbclass
index 03100b8a5fa1..9e3d1d6fc1ad 100644
--- a/meta/classes/uboot-sign.bbclass
+++ b/meta/classes/uboot-sign.bbclass
@@ -70,7 +70,7 @@ concat_dtb() {
                elif [ -e "${DEPLOYDIR}/${UBOOT_NODTB_IMAGE}" -a -e 
"$deployed_uboot_dtb_binary" ]; then
                        cd ${DEPLOYDIR}
                        cat ${UBOOT_NODTB_IMAGE} $deployed_uboot_dtb_binary | 
tee ${B}/${UBOOT_BINARY} > ${UBOOT_IMAGE}
-               else
+               elif [ -n "${UBOOT_DTB_BINARY}" ]; then
                        bbwarn "Failure while adding public key to u-boot 
binary. Verified boot won't be available."
                fi
        fi
@@ -86,7 +86,7 @@ do_install_append() {
                        # need both of them.
                        install ${B}/${UBOOT_DTB_BINARY} 
${D}${datadir}/${UBOOT_DTB_IMAGE}
                        ln -sf ${UBOOT_DTB_IMAGE} 
${D}${datadir}/${UBOOT_DTB_BINARY}
-               else
+               elif [ -n "${UBOOT_DTB_BINARY}" ]; then
                        bbwarn "${B}/${UBOOT_DTB_BINARY} not found"
                fi
        fi
-- 
2.7.4

-- 
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