dpdk: Add check against necessary kernel options

dpdk requires kernel option features/intel-dpdk/intel-dpdk.scc to build.
We'd better warn users in advance before they meet some confusing errors
at compile-time.

Signed-off-by: He Zhe <zhe.he@windriver.com>
Signed-off-by: Anuj Mittal <anuj.mittal@intel.com>

1 files changed, 5 insertions, 0 deletions

diff --git a/recipes-extended/dpdk/dpdk.inc b/recipes-extended/dpdk/dpdk.inc
index e70d9a6..1ec3a98 100644
--- a/recipes-extended/dpdk/dpdk.inc
+++ b/recipes-extended/dpdk/dpdk.inc
@@ -1,6 +1,11 @@
 DESCRIPTION = "Intel(r) Data Plane Development Kit"
 HOMEPAGE = "http://dpdk.org"
 
+python () {
+    if not bb.utils.contains('KERNEL_FEATURES', 'features/intel-dpdk/intel-dpdk.scc', True, False, d):
+        bb.warn("dpdk requires kernel options in features/intel-dpdk/intel-dpdk.scc to be able to build and work properly. You can either enable them by adding features/intel-dpdk/intel-dpdk.scc to KERNEL_FEATURES or by standard kernel configuration process.")
+}
+
 STABLE = ""
 BRANCH = "master"
 S = "${WORKDIR}/git"