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[PATCH 4.14 076/105] powerpc/boot: Set target when cross-compiling for clang

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


From: Joel Stanley <joel@xxxxxxxxx>

commit 813af51f5d30a2da6a2523c08465f9726e51772e upstream.

Clang needs to be told which target it is building for when cross

Link: https://github.com/ClangBuiltLinux/linux/issues/259
Signed-off-by: Joel Stanley <joel@xxxxxxxxx>
Tested-by: Daniel Axtens <dja@xxxxxxxxxx> # powerpc 64-bit BE
Acked-by: Michael Ellerman <mpe@xxxxxxxxxxxxxx>
Reviewed-by: Nick Desaulniers <ndesaulniers@xxxxxxxxxx>
Signed-off-by: Masahiro Yamada <yamada.masahiro@xxxxxxxxxxxxx>
[nc: Use 'ifeq ($(cc-name),clang)' instead of 'ifdef CONFIG_CC_IS_CLANG'
     because that config does not exist in 4.14; the Kconfig rewrite
     that added that config happened in 4.18]
Signed-off-by: Nathan Chancellor <natechancellor@xxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
 arch/powerpc/boot/Makefile |    5 +++++
 1 file changed, 5 insertions(+)

--- a/arch/powerpc/boot/Makefile
+++ b/arch/powerpc/boot/Makefile
@@ -49,6 +49,11 @@ endif
 BOOTAFLAGS	:= -D__ASSEMBLY__ $(BOOTCFLAGS) -traditional -nostdinc
+ifeq ($(cc-name),clang)