linux-kernel - [PATCH 4.20 014/352] nds32: Fix gcc 8.0 compiler option incompatible.

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Message-Id: <20190211141847.307317071@linuxfoundation.org>
Date:   Mon, 11 Feb 2019 15:14:01 +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, Nickhu <nickhu@...estech.com>,
        Zong Li <zong@...estech.com>,
        Greentime Hu <greentime@...estech.com>,
        Sasha Levin <sashal@...nel.org>
Subject: [PATCH 4.20 014/352] nds32: Fix gcc 8.0 compiler option incompatible.

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

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

[ Upstream commit 4c3d6174e0e17599549f636ec48ddf78627a17fe ]

When the kernel configs of ftrace and frame pointer options are
choosed, the compiler option of kernel will incompatible.
	Error message:
		nds32le-linux-gcc: error: -pg and -fomit-frame-pointer are incompatible

Signed-off-by: Nickhu <nickhu@...estech.com>
Signed-off-by: Zong Li <zong@...estech.com>
Acked-by: Greentime Hu <greentime@...estech.com>
Signed-off-by: Greentime Hu <greentime@...estech.com>
Signed-off-by: Sasha Levin <sashal@...nel.org>
---
 arch/nds32/mm/Makefile | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/arch/nds32/mm/Makefile b/arch/nds32/mm/Makefile
index 6b6855852223..7c5c15ad854a 100644
--- a/arch/nds32/mm/Makefile
+++ b/arch/nds32/mm/Makefile
@@ -4,4 +4,8 @@ obj-y				:= extable.o tlb.o \
 
 obj-$(CONFIG_ALIGNMENT_TRAP)	+= alignment.o
 obj-$(CONFIG_HIGHMEM)           += highmem.o
-CFLAGS_proc-n13.o		+= -fomit-frame-pointer
+
+ifdef CONFIG_FUNCTION_TRACER
+CFLAGS_REMOVE_proc.o     = $(CC_FLAGS_FTRACE)
+endif
+CFLAGS_proc.o              += -fomit-frame-pointer
-- 
2.19.1