3 files changed, 3 insertions, 3 deletions

diff --git a/meta-oe/recipes-devtools/nanopb/nanopb_0.4.0.bb b/meta-oe/recipes-devtools/nanopb/nanopb_0.4.0.bb
index 21d110aeea..2e3da7d4d3 100644
--- a/meta-oe/recipes-devtools/nanopb/nanopb_0.4.0.bb
+++ b/meta-oe/recipes-devtools/nanopb/nanopb_0.4.0.bb
@@ -27,4 +27,4 @@ RDEPENDS_${PN} += "\
 
 BBCLASSEXTEND = "native nativesdk"
 
-PNBLACKLIST[nanopb] = "Needs forward porting to use python3"
+PNBLACKLIST[nanopb] ?= "Needs forward porting to use python3"
diff --git a/meta-oe/recipes-extended/socketcan/can-isotp_git.bb b/meta-oe/recipes-extended/socketcan/can-isotp_git.bb
index e40e1cd263..eca8dfc7b7 100644
--- a/meta-oe/recipes-extended/socketcan/can-isotp_git.bb
+++ b/meta-oe/recipes-extended/socketcan/can-isotp_git.bb
@@ -11,4 +11,4 @@ inherit module
 
 EXTRA_OEMAKE += "KERNELDIR=${STAGING_KERNEL_DIR}"
 
-PNBLACKLIST[can-isotp] = "Kernel module Needs forward porting to kernel 5.2+"
+PNBLACKLIST[can-isotp] ?= "Kernel module Needs forward porting to kernel 5.2+"
diff --git a/meta-oe/recipes-kernel/bpftool/bpftool.bb b/meta-oe/recipes-kernel/bpftool/bpftool.bb
index 6683eccf2d..1758430bc8 100644
--- a/meta-oe/recipes-kernel/bpftool/bpftool.bb
+++ b/meta-oe/recipes-kernel/bpftool/bpftool.bb
@@ -32,4 +32,4 @@ python do_package_prepend() {
 }
 
 B = "${WORKDIR}/${BPN}-${PV}"
-PNBLACKLIST[bpftool] = "Needs forward porting to kernel 5.2+"
+PNBLACKLIST[bpftool] ?= "Needs forward porting to kernel 5.2+"