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Subject[Patch] dt: OF_UNITTEST make dependency broken
From: Frank Rowand <frank.rowand@sonymobile.com>

If CONFIG_OF_UNITTEST=y then a kernel image make will always cause .version to
be incremented, even if there are not source changes. This is caused by
a lack of dependency tracking and checking for
drivers/of/unittest-data/testcases.dtb.o.


Signed-off-by: Frank Rowand <frank.rowand@sonymobile.com>

---


drivers/of/Makefile | 5 +++--
drivers/of/unittest-data/.gitignore | 2 ++
drivers/of/unittest-data/Makefile | 7 +++++++
3 files changed, 12 insertions(+), 2 deletions(-)

Index: b/drivers/of/Makefile
===================================================================
--- a/drivers/of/Makefile
+++ b/drivers/of/Makefile
@@ -6,8 +6,7 @@ obj-$(CONFIG_OF_PROMTREE) += pdt.o
obj-$(CONFIG_OF_ADDRESS) += address.o
obj-$(CONFIG_OF_IRQ) += irq.o
obj-$(CONFIG_OF_NET) += of_net.o
-obj-$(CONFIG_OF_UNITTEST) += of_unittest.o
-of_unittest-objs := unittest.o unittest-data/testcases.dtb.o
+obj-$(CONFIG_OF_UNITTEST) += unittest.o
obj-$(CONFIG_OF_MDIO) += of_mdio.o
obj-$(CONFIG_OF_PCI) += of_pci.o
obj-$(CONFIG_OF_PCI_IRQ) += of_pci_irq.o
@@ -16,5 +15,7 @@ obj-$(CONFIG_OF_RESERVED_MEM) += of_rese
obj-$(CONFIG_OF_RESOLVE) += resolver.o
obj-$(CONFIG_OF_OVERLAY) += overlay.o

+obj-$(CONFIG_OF_UNITTEST) += unittest-data/
+
CFLAGS_fdt.o = -I$(src)/../../scripts/dtc/libfdt
CFLAGS_fdt_address.o = -I$(src)/../../scripts/dtc/libfdt
Index: b/drivers/of/unittest-data/Makefile
===================================================================
--- /dev/null
+++ b/drivers/of/unittest-data/Makefile
@@ -0,0 +1,7 @@
+obj-y += testcases.dtb.o
+
+targets += testcases.dtb testcases.dtb.S
+
+.SECONDARY: \
+ $(obj)/testcases.dtb.S \
+ $(obj)/testcases.dtb
Index: b/drivers/of/unittest-data/.gitignore
===================================================================
--- /dev/null
+++ b/drivers/of/unittest-data/.gitignore
@@ -0,0 +1,2 @@
+testcases.dtb
+testcases.dtb.S

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