drbd-utils: add submodule drbd-headers into SRC_URI

1. add submodule drbd-headers into SRC_URI

   drbd-headers is git submodule of drbd-utils, so drbd-headers's
code will not fetch during do_fetch. but it will get during
do_compile(there is a logic in drbd-utils's makefile to do this),
but if during do_compile, network is broken,  fetch drbd-headers
will fail, then do_compile will fail since missing header file.

2. add patch for fix drbd init script

Signed-off-by: Changqing Li <changqing.li@windriver.com>
Signed-off-by: Khem Raj <raj.khem@gmail.com>

1 files changed, 43 insertions, 0 deletions

diff --git a/meta-networking/recipes-support/drbd/drbd-utils/0001-drbd-drbd-tools-only-rmmod-if-DRBD-is-a-module.patch b/meta-networking/recipes-support/drbd/drbd-utils/0001-drbd-drbd-tools-only-rmmod-if-DRBD-is-a-module.patch
new file mode 100644
index 000000000..c0f3adf24
--- /dev/null
+++ b/meta-networking/recipes-support/drbd/drbd-utils/0001-drbd-drbd-tools-only-rmmod-if-DRBD-is-a-module.patch
@@ -0,0 +1,43 @@
+Subject: drbd-tools: only rmmod if DRBD is a module
+
+Account for the case if the DRBD drive is built into
+the kernel. Otherwise, errors, like the following,
+will occur:
+
+root@localhost:~# /etc/init.d/drbd stop
+    Stopping all DRBD resources: ERROR: Module drbd 
+    does not exist in /proc/modules
+
+Upstream-Status: Submitted [https://github.com/LINBIT/drbd-utils/pull/2]
+
+Signed-off-by: Aws Ismail <aws.ismail@windriver.com>
+Signed-off-by: Jason Wessel <jason.wessel@windriver.com>
+
+[ refresh to 8.4.4: squash Aws' and Jason's patches ]
+Signed-off-by: Michel Thebeau <michel.thebeau@windriver.com>
+
+Signed-off-by: Chen Qi <Qi.Chen@windriver.com>
+Signed-off-by: Changqing Li <changqing.li@windriver.com>
+
+---
+ scripts/drbd | 4 +++-
+ 1 file changed, 3 insertions(+), 1 deletion(-)
+
+diff --git a/scripts/drbd b/scripts/drbd
+index 20bf628..de589dc 100755
+--- a/scripts/drbd
++++ b/scripts/drbd
+@@ -241,7 +241,9 @@ case "$1" in
+                if [ -d /sys/module/drbd/holders ]; then
+                        (cd /sys/module/drbd/holders; for tr in *; do [ -d ${tr} ] && ${RMMOD} ${tr}; done)
+                fi
+-               $RMMOD drbd && break
++               if [ ! -z "$(cat /proc/modules | grep -w drbd)" ]; then
++                       $RMMOD drbd && break
++               fi
+            fi
+        done
+        run_hook stop
+-- 
+1.9.1
+