Re: [PATCH] MIPS: DTS: Only build subdir of current platform

From: Tiezhu Yang
Date: Wed May 27 2020 - 21:24:44 EST


On 05/28/2020 07:10 AM, Guenter Roeck wrote:
On Thu, May 21, 2020 at 10:15:06AM +0800, Tiezhu Yang wrote:
Add config check in Makefile to only build the subdir of current platform.

E.g. without this patch:

AR arch/mips/built-in.a
AR arch/mips/boot/dts/brcm/built-in.a
AR arch/mips/boot/dts/cavium-octeon/built-in.a
AR arch/mips/boot/dts/img/built-in.a
AR arch/mips/boot/dts/ingenic/built-in.a
AR arch/mips/boot/dts/lantiq/built-in.a
DTC arch/mips/boot/dts/loongson/loongson3_4core_rs780e.dtb
DTB arch/mips/boot/dts/loongson/loongson3_4core_rs780e.dtb.S
AS arch/mips/boot/dts/loongson/loongson3_4core_rs780e.dtb.o
DTC arch/mips/boot/dts/loongson/loongson3_8core_rs780e.dtb
DTB arch/mips/boot/dts/loongson/loongson3_8core_rs780e.dtb.S
AS arch/mips/boot/dts/loongson/loongson3_8core_rs780e.dtb.o
AR arch/mips/boot/dts/loongson/built-in.a
AR arch/mips/boot/dts/mscc/built-in.a
AR arch/mips/boot/dts/mti/built-in.a
AR arch/mips/boot/dts/netlogic/built-in.a
AR arch/mips/boot/dts/ni/built-in.a
AR arch/mips/boot/dts/pic32/built-in.a
AR arch/mips/boot/dts/qca/built-in.a
AR arch/mips/boot/dts/ralink/built-in.a
AR arch/mips/boot/dts/xilfpga/built-in.a
AR arch/mips/boot/dts/built-in.a

With this patch:

AR arch/mips/built-in.a
DTC arch/mips/boot/dts/loongson/loongson3_4core_rs780e.dtb
DTB arch/mips/boot/dts/loongson/loongson3_4core_rs780e.dtb.S
AS arch/mips/boot/dts/loongson/loongson3_4core_rs780e.dtb.o
DTC arch/mips/boot/dts/loongson/loongson3_8core_rs780e.dtb
DTB arch/mips/boot/dts/loongson/loongson3_8core_rs780e.dtb.S
AS arch/mips/boot/dts/loongson/loongson3_8core_rs780e.dtb.o
AR arch/mips/boot/dts/loongson/built-in.a
AR arch/mips/boot/dts/built-in.a

Signed-off-by: Tiezhu Yang <yangtiezhu@xxxxxxxxxxx>
With this patch applied, boston.dtb is no longer built with
64r6el_defconfig, even though 64r6el_defconfig enables
CONFIG_FIT_IMAGE_FDT_BOSTON=y. This is because the img
subdirectory is now only included if CONFIG_MACH_PISTACHIO=y,
but that is not the case with 64r6el_defconfig.

Thanks for your report, sorry for this issue.

I received the build error report yesterday from
kbuild test robot <lkp@xxxxxxxxx>, I will fix it.


Please revisit.

Guenter

---
arch/mips/boot/dts/Makefile | 28 ++++++++++++++--------------
1 file changed, 14 insertions(+), 14 deletions(-)

diff --git a/arch/mips/boot/dts/Makefile b/arch/mips/boot/dts/Makefile
index d429a69..dce32d1 100644
--- a/arch/mips/boot/dts/Makefile
+++ b/arch/mips/boot/dts/Makefile
@@ -1,17 +1,17 @@
# SPDX-License-Identifier: GPL-2.0
-subdir-y += brcm
-subdir-y += cavium-octeon
-subdir-y += img
-subdir-y += ingenic
-subdir-y += lantiq
-subdir-y += loongson
-subdir-y += mscc
-subdir-y += mti
-subdir-y += netlogic
-subdir-y += ni
-subdir-y += pic32
-subdir-y += qca
-subdir-y += ralink
-subdir-y += xilfpga
+subdir-$(CONFIG_BMIPS_GENERIC) += brcm
+subdir-$(CONFIG_CAVIUM_OCTEON_SOC) += cavium-octeon
+subdir-$(CONFIG_MACH_PISTACHIO) += img
+subdir-$(CONFIG_MACH_INGENIC) += ingenic
+subdir-$(CONFIG_LANTIQ) += lantiq
+subdir-$(CONFIG_MACH_LOONGSON64) += loongson
+subdir-$(CONFIG_MSCC_OCELOT) += mscc
+subdir-$(CONFIG_MIPS_MALTA) += mti
+subdir-$(CONFIG_NLM_XLP_BOARD) += netlogic
+subdir-$(CONFIG_FIT_IMAGE_FDT_NI169445) += ni
+subdir-$(CONFIG_MACH_PIC32) += pic32
+subdir-$(CONFIG_ATH79) += qca
+subdir-$(CONFIG_RALINK) += ralink
+subdir-$(CONFIG_FIT_IMAGE_FDT_XILFPGA) += xilfpga
obj-$(CONFIG_BUILTIN_DTB) := $(addsuffix /, $(subdir-y))
--
2.1.0