linux-kernel - [PATCH AUTOSEL 4.9 17/22] ARM: davinci: fix sleep.S build error on ARMv4

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Message-Id: <20190802132547.14517-17-sashal@kernel.org>
Date:   Fri,  2 Aug 2019 09:25:41 -0400
From:   Sasha Levin <sashal@...nel.org>
To:     linux-kernel@...r.kernel.org, stable@...r.kernel.org
Cc:     Arnd Bergmann <arnd@...db.de>, Sekhar Nori <nsekhar@...com>,
        Olof Johansson <olof@...om.net>,
        Sasha Levin <sashal@...nel.org>
Subject: [PATCH AUTOSEL 4.9 17/22] ARM: davinci: fix sleep.S build error on ARMv4

From: Arnd Bergmann <arnd@...db.de>

[ Upstream commit d64b212ea960db4276a1d8372bd98cb861dfcbb0 ]

When building a multiplatform kernel that includes armv4 support,
the default target CPU does not support the blx instruction,
which leads to a build failure:

arch/arm/mach-davinci/sleep.S: Assembler messages:
arch/arm/mach-davinci/sleep.S:56: Error: selected processor does not support `blx ip' in ARM mode

Add a .arch statement in the sources to make this file build.

Link: https://lore.kernel.org/r/20190722145211.1154785-1-arnd@arndb.de
Acked-by: Sekhar Nori <nsekhar@...com>
Signed-off-by: Arnd Bergmann <arnd@...db.de>
Signed-off-by: Olof Johansson <olof@...om.net>
Signed-off-by: Sasha Levin <sashal@...nel.org>
---
 arch/arm/mach-davinci/sleep.S | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/arm/mach-davinci/sleep.S b/arch/arm/mach-davinci/sleep.S
index cd350dee4df37..efcd400b2abb3 100644
--- a/arch/arm/mach-davinci/sleep.S
+++ b/arch/arm/mach-davinci/sleep.S
@@ -37,6 +37,7 @@
 #define DEEPSLEEP_SLEEPENABLE_BIT	BIT(31)
 
 	.text
+	.arch	armv5te
 /*
  * Move DaVinci into deep sleep state
  *
-- 
2.20.1