linux-kernel - [char-misc-next] samples: mei: use hostprogs kbuild constructs

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Date:   Thu, 10 Oct 2019 16:27:10 +0300
From:   Tomas Winkler <tomas.winkler@...el.com>
To:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Cc:     Alexander Usyskin <alexander.usyskin@...el.com>,
        linux-kernel@...r.kernel.org,
        Tomas Winkler <tomas.winkler@...el.com>
Subject: [char-misc-next] samples: mei: use hostprogs kbuild constructs

Use hostprogs kbuild constructs to compile
mei sample program mei-amt-version

Add CONFIG_SAMPLE_INTEL_MEI option to enable/disable
the feature.

Signed-off-by: Tomas Winkler <tomas.winkler@...el.com>
---
 samples/Kconfig      |  7 +++++++
 samples/Makefile     |  1 +
 samples/mei/Makefile | 12 ++++++------
 3 files changed, 14 insertions(+), 6 deletions(-)

diff --git a/samples/Kconfig b/samples/Kconfig
index c8dacb4dda80..b663d9d24114 100644
--- a/samples/Kconfig
+++ b/samples/Kconfig
@@ -169,4 +169,11 @@ config SAMPLE_VFS
 	  as mount API and statx().  Note that this is restricted to the x86
 	  arch whilst it accesses system calls that aren't yet in all arches.
 
+config SAMPLE_INTEL_MEI
+	bool "Build example program working with intel mei driver"
+	depends on INTEL_MEI
+	help
+	  Build a sample program to work with mei device.
+
+
 endif # SAMPLES
diff --git a/samples/Makefile b/samples/Makefile
index 7d6e4ca28d69..d6062ab25347 100644
--- a/samples/Makefile
+++ b/samples/Makefile
@@ -20,3 +20,4 @@ obj-$(CONFIG_SAMPLE_TRACE_PRINTK)	+= trace_printk/
 obj-$(CONFIG_VIDEO_PCI_SKELETON)	+= v4l/
 obj-y					+= vfio-mdev/
 subdir-$(CONFIG_SAMPLE_VFS)		+= vfs
+obj-$(CONFIG_SAMPLE_INTEL_MEI)		+= mei/
diff --git a/samples/mei/Makefile b/samples/mei/Makefile
index c7e52e9e92ca..27f37efdadb4 100644
--- a/samples/mei/Makefile
+++ b/samples/mei/Makefile
@@ -1,10 +1,10 @@
 # SPDX-License-Identifier: GPL-2.0
-CC := $(CROSS_COMPILE)gcc
-CFLAGS := -I../../usr/include
+# Copyright (c) 2012-2019, Intel Corporation. All rights reserved.
 
-PROGS := mei-amt-version
+hostprogs-y := mei-amt-version
 
-all: $(PROGS)
+HOSTCFLAGS_mei-amt-version.o += -I$(objtree)/usr/include
 
-clean:
-	rm -fr $(PROGS)
+always := $(hostprogs-y)
+
+all: mei-amt-version
-- 
2.21.0