linux-kernel - [PATCH 1/4] microblaze: fix 'FORCE prerequisite is missing' warning

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Message-ID: <20250114181359.4192564-1-masahiroy@kernel.org>
Date: Wed, 15 Jan 2025 03:13:51 +0900
From: Masahiro Yamada <masahiroy@...nel.org>
To: Michal Simek <monstr@...str.eu>
Cc: linux-kernel@...r.kernel.org,
	Masahiro Yamada <masahiroy@...nel.org>,
	Conor Dooley <conor+dt@...nel.org>,
	Krzysztof Kozlowski <krzk+dt@...nel.org>,
	Rob Herring <robh@...nel.org>,
	devicetree@...r.kernel.org
Subject: [PATCH 1/4] microblaze: fix 'FORCE prerequisite is missing' warning

If you add foo.dtb into the arch/microblaze/boot/dts/ directory and
run 'make simpleImage.foo', you will observe the following warning:

  arch/microblaze/boot/dts/Makefile:15: FORCE prerequisite is missing

Without FORCE, if_changed cannot detect the command line changes.

Signed-off-by: Masahiro Yamada <masahiroy@...nel.org>
---

 arch/microblaze/boot/dts/Makefile | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/microblaze/boot/dts/Makefile b/arch/microblaze/boot/dts/Makefile
index b84e2cbb20ee..932dc7550a1b 100644
--- a/arch/microblaze/boot/dts/Makefile
+++ b/arch/microblaze/boot/dts/Makefile
@@ -11,7 +11,7 @@ $(obj)/linked_dtb.o: $(obj)/system.dtb
 
 # Generate system.dtb from $(DTB).dtb
 ifneq ($(DTB),system)
-$(obj)/system.dtb: $(obj)/$(DTB).dtb
+$(obj)/system.dtb: $(obj)/$(DTB).dtb FORCE
 	$(call if_changed,copy)
 endif
 endif
-- 
2.43.0