linux-kernel - [PATCH] ARM: shmobile: rcar-gen2: fix non-SMP build

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Date:   Thu,  5 Oct 2017 14:09:04 +0200
From:   Arnd Bergmann <arnd@...db.de>
To:     Simon Horman <horms@...ge.net.au>,
        Magnus Damm <magnus.damm@...il.com>
Cc:     Arnd Bergmann <arnd@...db.de>,
        Geert Uytterhoeven <geert+renesas@...der.be>,
        linux-arm-kernel@...ts.infradead.org,
        linux-renesas-soc@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: [PATCH] ARM: shmobile: rcar-gen2: fix non-SMP build

A bugfix for the SMP case broke the build for the UP case:

arch/arm/mach-shmobile/headsmp-apmu.o: In function `shmobile_boot_apmu':
(.text+0x34): undefined reference to `secondary_startup'

The assembler file mixes code that is used for SMP with code
that we also need on a single-CPU build, so I'm leaving it
always enabled in the Makefile, but enclose the SMP code
in an #ifdef.

3fd45a136ff6 ("ARM: shmobile: rcar-gen2: Make sure CNTVOFF is initialized on CA7/15")
Signed-off-by: Arnd Bergmann <arnd@...db.de>

Signed-off-by: Arnd Bergmann <arnd@...db.de>
---
 arch/arm/mach-shmobile/headsmp-apmu.S | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/arch/arm/mach-shmobile/headsmp-apmu.S b/arch/arm/mach-shmobile/headsmp-apmu.S
index db4743d2bf91..5672b5849401 100644
--- a/arch/arm/mach-shmobile/headsmp-apmu.S
+++ b/arch/arm/mach-shmobile/headsmp-apmu.S
@@ -31,7 +31,9 @@ ENTRY(shmobile_init_cntvoff)
 	ret	lr
 ENDPROC(shmobile_init_cntvoff)
 
+#ifdef CONFIG_SMP
 ENTRY(shmobile_boot_apmu)
 	bl	shmobile_init_cntvoff
 	b	secondary_startup
 ENDPROC(shmobile_boot_apmu)
+#endif
-- 
2.9.0