The %.dtb dependency is specified to depend on the PHONY "scripts".
That means that it'll build every time even if the underlying dtb file
hasn't been touched. Use an order-only prerequisites to fix this.
Also mark "dtbs" as PHONY for correctness.
This was broken in (70b0476 ARM: 7513/1: Make sure dtc is built before
running it).
Reported-by: Mike Frysinger <vap...@gentoo.org>
Signed-off-by: Doug Anderson <diand...@chromium.org>
---
arch/arm/Makefile | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/arch/arm/Makefile b/arch/arm/Makefile
index 1ba358b..fe8144e 100644
--- a/arch/arm/Makefile
+++ b/arch/arm/Makefile
@@ -289,9 +289,10 @@ zImage Image xipImage bootpImage uImage: vmlinux
zinstall uinstall install: vmlinux
$(Q)$(MAKE) $(build)=$(boot) MACHINE=$(MACHINE) $@
-%.dtb: scripts
+%.dtb: | scripts
$(Q)$(MAKE) $(build)=$(boot)/dts MACHINE=$(MACHINE) $(boot)/dts/$@
+PHONY += dtbs
dtbs: scripts
$(Q)$(MAKE) $(build)=$(boot)/dts MACHINE=$(MACHINE) dtbs
--
1.8.3
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