linux-kernel - [PATCH 3.18 07/31] powerpc/boot: Fix random libfdt related build errors

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Date:   Thu, 20 Dec 2018 10:18:19 +0100
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org, Guenter Roeck <linux@...ck-us.net>,
        Michael Ellerman <mpe@...erman.id.au>,
        Sasha Levin <alexander.levin@...rosoft.com>,
        Sasha Levin <sashal@...nel.org>
Subject: [PATCH 3.18 07/31] powerpc/boot: Fix random libfdt related build errors

3.18-stable review patch.  If anyone has any objections, please let me know.

------------------

[ Upstream commit 64c3f648c25d108f346fdc96c15180c6b7d250e9 ]

Once in a while I see build errors similar to the following
when building images from a clean tree.

  Building powerpc:virtex-ml507:44x/virtex5_defconfig ... failed
  ------------
  Error log:
  arch/powerpc/boot/treeboot-akebono.c:37:20: fatal error:
  	libfdt.h: No such file or directory

  Building powerpc:bamboo:smpdev:44x/bamboo_defconfig ... failed
  ------------
  Error log:
  arch/powerpc/boot/treeboot-akebono.c:37:20: fatal error:
  	libfdt.h: No such file or directory

  arch/powerpc/boot/treeboot-currituck.c:35:20: fatal error:
       libfdt.h: No such file or directory

Rebuilds will succeed.

Turns out that several source files in arch/powerpc/boot/ include
libfdt.h, but Makefile dependencies are incomplete. Let's fix that.

Signed-off-by: Guenter Roeck <linux@...ck-us.net>
Signed-off-by: Michael Ellerman <mpe@...erman.id.au>
Signed-off-by: Sasha Levin <alexander.levin@...rosoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
[groeck: Backport to v4.4.y]
Signed-off-by: Guenter Roeck <linux@...ck-us.net>
Signed-off-by: Sasha Levin <sashal@...nel.org>
---
 arch/powerpc/boot/Makefile |    3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

--- a/arch/powerpc/boot/Makefile
+++ b/arch/powerpc/boot/Makefile
@@ -67,7 +67,8 @@ $(addprefix $(obj)/,$(zlib) cuboot-c2k.o
 libfdt       := fdt.c fdt_ro.c fdt_wip.c fdt_sw.c fdt_rw.c fdt_strerror.c
 libfdtheader := fdt.h libfdt.h libfdt_internal.h
 
-$(addprefix $(obj)/,$(libfdt) libfdt-wrapper.o simpleboot.o epapr.o): \
+$(addprefix $(obj)/,$(libfdt) libfdt-wrapper.o simpleboot.o epapr.o \
+	treeboot-akebono.o treeboot-currituck.o treeboot-iss4xx.o): \
 	$(addprefix $(obj)/,$(libfdtheader))
 
 src-wlib-y := string.S crt0.S crtsavres.S stdio.c main.c \