[yocto] [yocto-docs][PATCH] kernel-dev: document the change detection of kernel feature files

[Urs Fässler]

Recommend to add recipe-space features to SRC_URI so that changes to them
are detected automatically.

Signed-off-by: Urs Fässler <urs.fassler at bbv.ch>
Signed-off-by: Pascal Bach <pascal.bach at siemens.com>
---
 documentation/kernel-dev/kernel-dev-common.xml | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/documentation/kernel-dev/kernel-dev-common.xml b/documentation/kernel-dev/kernel-dev-common.xml
index 83b02b1c1..6289ce8d4 100644
--- a/documentation/kernel-dev/kernel-dev-common.xml
+++ b/documentation/kernel-dev/kernel-dev-common.xml
@@ -2623,6 +2623,9 @@
             <filename>.scc</filename> file in the
             <filename>SRC_URI</filename> statement to reference multiple kernel
             features.
+            Since BitBake only detects changes on files listed in
+            <filename>SRC_URI</filename>, it is best to add all
+            <filename>.cfg</filename> to <filename>SRC_URI</filename>.
         </para>
 
         <para>
@@ -2674,10 +2677,10 @@
                     </para></listitem>
                 <listitem><para>
                     <emphasis>Add the Feature File to <filename>SRC_URI</filename>:</emphasis>
-                    Add the <filename>.scc</filename> file to the
+                    Add the <filename>.cfg</filename> and <filename>.scc</filename> file to the
                     recipe's <filename>SRC_URI</filename> statement:
                     <literallayout class='monospaced'>
-     SRC_URI_append = " file://test.scc"
+     SRC_URI_append = " file://test.cfg file://test.scc"
                     </literallayout>
                     The leading space before the path is important as the
                     path is appended to the existing path.
-- 
2.19.0