kdbus: Add required kernel export symbols to readme

To support out-of-tree module build for kdbus, some kernel symbols
are required to export. Add the information to readme file.

Change-Id: Ia64f81503a27511ffff6fcc35ba893c8e37599c3
Signed-off-by: Seung-Woo Kim <sw0312.kim@samsung.com>

diff --git a/kernel/kdbus/README.md b/kernel/kdbus/README.md
index 0db36704c4f38cd43d1f3627d29c859e226ba498..08f0c0e0ba2ef5a5e1fa0b1714ff283e98ae0ab8 100644 (file)
--- a/kernel/kdbus/README.md
+++ b/kernel/kdbus/README.md
@@ -3,3 +3,8 @@
 To build kdbus module, below commits should be reverted from kernel source tree:
   the commit d16b3af46679 ("cgroup: remove unused task_cgroup_path()") for v6.5 or later version
   the commit 8f546ae1fc5c ("fs: unexport poll_schedule_timeout") for v4.18 or later version
+
+To build kdbus module, required to export kernel symbols below:
+  collect_mounts, collect_mounts and iterate_mounts from fs/namespace.c
+  memfd_fcntl from mm/memfd.c
+  Refer the link: https://git.tizen.org/cgit/platform/kernel/linux-rpi/commit/?h=804d16239320