linux-kernel - [PATCH 4.14 002/100] ARM: 8766/1: drop no-thumb-interwork in EABI mode

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Date:   Thu, 29 Nov 2018 15:11:32 +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, Stefan Agner <stefan@...er.ch>,
        Russell King <rmk+kernel@...linux.org.uk>,
        Nick Desaulniers <ndesaulniers@...gle.com>
Subject: [PATCH 4.14 002/100] ARM: 8766/1: drop no-thumb-interwork in EABI mode

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

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

From: Stefan Agner <stefan@...er.ch>

(commit 22905a24306c8c312c2d66da9f90d09af0414f81 upstream)

According to GCC documentation -m(no-)thumb-interwork is
meaningless in AAPCS configurations. Also clang does not
support the flag:
  clang-5.0: error: unknown argument: '-mno-thumb-interwork'

Just drop -mno-thumb-interwork in AEABI configuration.

Signed-off-by: Stefan Agner <stefan@...er.ch>
Signed-off-by: Russell King <rmk+kernel@...linux.org.uk>
Signed-off-by: Nick Desaulniers <ndesaulniers@...gle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
---
 arch/arm/Makefile |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/arch/arm/Makefile
+++ b/arch/arm/Makefile
@@ -106,7 +106,7 @@ tune-$(CONFIG_CPU_V6K)		=$(call cc-optio
 tune-y := $(tune-y)
 
 ifeq ($(CONFIG_AEABI),y)
-CFLAGS_ABI	:=-mabi=aapcs-linux -mno-thumb-interwork -mfpu=vfp
+CFLAGS_ABI	:=-mabi=aapcs-linux -mfpu=vfp
 else
 CFLAGS_ABI	:=$(call cc-option,-mapcs-32,-mabi=apcs-gnu) $(call cc-option,-mno-thumb-interwork,)
 endif