kernel.bbclass: Copy include/config/auto.conf in STAGING_KERNEL_BUILDDIR

Linux commit aaed5c7739be ("kbuild: slim down package for building
external modules")[0] states that include/config/auto.conf is also a
file needed for out-of-tree build.

This avoids this error when building an out-of-tree Rust kernel module:
| make -C .../tmp/work-shared/qemux86-64/kernel-source M=$PWD
| make[1]: Entering directory '.../tmp/work-shared/qemux86-64/kernel-source'
| make[2]: Entering directory '.../tmp/work/qemux86_64-poky-linux/rust-out-of-tree-module/git/sources/rust-out-of-tree-module-git'
| .../tmp/work-shared/qemux86-64/kernel-source/Makefile:779: .../tmp/work-shared/qemux86-64/kernel-build-artifacts/include/config/auto.conf: No such file or directory

[0]: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=aaed5c7739be81ebdd6008aedc8befd98c88e67a

Signed-off-by: Yoann Congal <yoann.congal@smile.fr>
Signed-off-by: Harish Sadineni <Harish.Sadineni@windriver.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

diff --git a/meta/classes-recipe/kernel.bbclass b/meta/classes-recipe/kernel.bbclass
index d61cc82a4e24bcb3b9883c2a8024a73aa9ce3449..094c1148b6aa5059c52eea69900f809912d8d708 100644 (file)
--- a/meta/classes-recipe/kernel.bbclass
+++ b/meta/classes-recipe/kernel.bbclass
@@ -550,6 +550,7 @@ do_shared_workdir () {
        cp .config $kerneldir/
        mkdir -p $kerneldir/include/config
        cp include/config/kernel.release $kerneldir/include/config/kernel.release
+       cp include/config/auto.conf      $kerneldir/include/config/auto.conf
        if [ -e certs/signing_key.x509 ]; then
                # The signing_key.* files are stored in the certs/ dir in
                # newer Linux kernels