[gnome-continuous-yocto/gnomeostree-3.28-rocko: 7861/8267] kernel-dev: Added note about running a clean build with a patch

[Emmanuele Bassi <ebassi src gnome org>]

commit 2efe56a06f6c116325f5c5d3dfcc3165db290f1b
Author: Scott Rifenbark <srifenbark gmail com>
Date:   Wed Sep 20 18:54:03 2017 -0700

    kernel-dev: Added note about running a clean build with a patch
    
    Put this note at the end of the traditional kernel development
    flow.  A way for the user to verify that the patch was applied
    for a subsequent build.
    
    (From yocto-docs rev: 598a518cd92980e1781649a3ed30ac585327dc0f)
    
    Signed-off-by: Scott Rifenbark <srifenbark gmail com>
    Signed-off-by: Richard Purdie <richard purdie linuxfoundation org>

 documentation/kernel-dev/kernel-dev-common.xml |   15 +++++++++++++++
 1 files changed, 15 insertions(+), 0 deletions(-)
---
diff --git a/documentation/kernel-dev/kernel-dev-common.xml b/documentation/kernel-dev/kernel-dev-common.xml
index 9f8ac2d..9ef1138 100644
--- a/documentation/kernel-dev/kernel-dev-common.xml
+++ b/documentation/kernel-dev/kernel-dev-common.xml
@@ -1434,6 +1434,21 @@
                     You can also see the
                     "<ulink url='&YOCTO_DOCS_DEV_URL;#using-bbappend-files'>Using .bbappend Files in Your 
Layer"</ulink>"
                     section in the Yocto Project Development Manual.
+                    <note>
+                        To build <filename>core-image-minimal</filename>
+                        again and see the effects of your patch, you can
+                        essentially eliminate the temporary source files
+                        saved in <filename>poky/build/tmp/work/...</filename>
+                        and residual effects of the build by entering the
+                        following sequence of commands:
+                        <literallayout class='monospaced'>
+     $ cd ~/poky/build
+     $ cd bitbake -c cleanall yocto-linux
+     $ cd bitbake core-image-minimal -c cleanall
+     $ bitbake core-image-minimal
+     $ runqemu qemux86
+                        </literallayout>
+                    </note>
                     </para></listitem>
             </orderedlist>
         </para>