linux-kernel - Re: [Patch] dt: OF_UNITTEST make dependency broken

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Date:	Tue, 24 Mar 2015 23:44:23 -0500
From:	Rob Herring <robherring2@...il.com>
To:	Frank Rowand <frowand.list@...il.com>
Cc:	Grant Likely <grant.likely@...aro.org>,
	Rob Herring <robh+dt@...nel.org>,
	Michal Marek <mmarek@...e.cz>,
	Linux Kernel list <linux-kernel@...r.kernel.org>,
	"devicetree@...r.kernel.org" <devicetree@...r.kernel.org>,
	linux-kbuild@...r.kernel.org
Subject: Re: [Patch] dt: OF_UNITTEST make dependency broken

On Fri, Mar 13, 2015 at 2:21 PM, Frank Rowand <frowand.list@...il.com> wrote:
> From: Frank Rowand <frank.rowand@...ymobile.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@...ymobile.com>

Applied. Thanks.

Rob

>
> ---
>
>
>  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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