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Message-Id: <0adce33cf1c70ac7203f8ebd987a912451aabd45.1527517001.git.christophe.leroy@c-s.fr>
Date:   Mon, 28 May 2018 14:17:49 +0000 (UTC)
From:   Christophe Leroy <christophe.leroy@....fr>
To:     Benjamin Herrenschmidt <benh@...nel.crashing.org>,
        Paul Mackerras <paulus@...ba.org>,
        Michael Ellerman <mpe@...erman.id.au>,
        segher@...nel.crashing.org
Cc:     linux-kernel@...r.kernel.org, linuxppc-dev@...ts.ozlabs.org
Subject: [PATCH] powerpc/Makefile: fix build failure by disabling
 attribute-alias warning

Latest GCC version emit many warnings similar to the following one.

As arch/powerpc code is built with -Werror, this breaks build with
GCC 8.1

This patch inhibits that warning

Signed-off-by: Christophe Leroy <christophe.leroy@....fr>
---
 arch/powerpc/Makefile | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/arch/powerpc/Makefile b/arch/powerpc/Makefile
index 26ccd0b91512..d6c557530ce8 100644
--- a/arch/powerpc/Makefile
+++ b/arch/powerpc/Makefile
@@ -145,6 +145,8 @@ CFLAGS-$(CONFIG_PPC64)	+= $(call cc-option,-mno-pointers-to-nested-functions)
 CFLAGS-$(CONFIG_PPC32)	:= -ffixed-r2 $(MULTIPLEWORD)
 CFLAGS-$(CONFIG_PPC32)	+= $(call cc-option,-mno-readonly-in-sdata)
 
+CFLAGS-y += $(call cc-option,-Wno-attribute-alias)
+
 ifeq ($(CONFIG_PPC_BOOK3S_64),y)
 ifeq ($(CONFIG_CPU_LITTLE_ENDIAN),y)
 CFLAGS-$(CONFIG_GENERIC_CPU) += -mcpu=power8
-- 
2.13.3

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