[folded-merged] selftests-error-out-if-kernel-header-files-are-not-yet-built-fix-2.patch removed from -mm tree

[Andrew Morton <akpm@linux-foundation.org>]

The quilt patch titled
     Subject: selftests: lib.mk: fix out-of-tree builds
has been removed from the -mm tree.  Its filename was
     selftests-error-out-if-kernel-header-files-are-not-yet-built-fix-2.patch

This patch was dropped because it was folded into selftests-error-out-if-kernel-header-files-are-not-yet-built.patch

------------------------------------------------------
From: Anders Roxell <anders.roxell@linaro.org>
Subject: selftests: lib.mk: fix out-of-tree builds
Date: Tue, 13 Jun 2023 09:49:31 +0200

Since commit ("selftests: error out if kernel header files are not yet
built") got merged, the kselftest build correctly because the
KBUILD_OUTPUT isn't set when building out-of-tree and specifying 'O=' This
is the error message that pops up.

make --silent --keep-going --jobs=32 O=/home/anders/.cache/tuxmake/builds/1482/build INSTALL_PATH=/home/anders/.cache/tuxmake/builds/1482/build/kselftest_install ARCH=arm64 CROSS_COMPILE=aarch64-linux-gnu- V=1 CROSS_COMPILE_COMPAT=arm-linux-gnueabihf- kselftest-install
make[3]: Entering directory '/home/anders/src/kernel/next/tools/testing/selftests/alsa'

-e error: missing kernel header files.
Please run this and try again:

    cd /home/anders/src/kernel/next/tools/testing/selftests/../../..
    make headers

make[3]: Leaving directory '/home/anders/src/kernel/next/tools/testing/selftests/alsa'
make[3]: *** [../lib.mk:77: kernel_header_files] Error 1

Fixing the issue by assigning KBUILD_OUTPUT the same way how its done in
kselftest's Makefile.  By adding 'KBUILD_OUTPUT := $(O)' 'if $(origin O)'
is set to 'command line'.  This will set the the BUILD dir to
KBUILD_OUTPUT/kselftest when doing out-of-tree builds which makes them in
its own separete output directory.

Link: https://lkml.kernel.org/r/20230613074931.666966-1-anders.roxell@linaro.org
Signed-off-by: Anders Roxell <anders.roxell@linaro.org>
Cc: John Hubbard <jhubbard@nvidia.com>
Cc: David Hildenbrand <david@redhat.com>
Cc: Muhammad Usama Anjum <usama.anjum@collabora.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---

 tools/testing/selftests/lib.mk |    4 ++++
 1 file changed, 4 insertions(+)

--- a/tools/testing/selftests/lib.mk~selftests-error-out-if-kernel-header-files-are-not-yet-built-fix-2
+++ a/tools/testing/selftests/lib.mk
@@ -44,6 +44,10 @@ endif
 selfdir = $(realpath $(dir $(filter %/lib.mk,$(MAKEFILE_LIST))))
 top_srcdir = $(selfdir)/../../..
 
+ifeq ("$(origin O)", "command line")
+  KBUILD_OUTPUT := $(O)
+endif
+
 ifneq ($(KBUILD_OUTPUT),)
   # Make's built-in functions such as $(abspath ...), $(realpath ...) cannot
   # expand a shell special character '~'. We use a somewhat tedious way here.
_

Patches currently in -mm which might be from anders.roxell@linaro.org are

selftests-error-out-if-kernel-header-files-are-not-yet-built.patch
selftests-damon-add-config-file.patch