linux-kernel - [PATCH AUTOSEL 4.19 12/29] powerpc/64: mark start_here_multiplatform as _

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Message-Id: <20190829105009.2265-12-sashal@kernel.org>
Date:   Thu, 29 Aug 2019 06:49:52 -0400
From:   Sasha Levin <sashal@...nel.org>
To:     linux-kernel@...r.kernel.org, stable@...r.kernel.org
Cc:     Christophe Leroy <christophe.leroy@....fr>,
        Russell Currey <ruscur@...sell.cc>,
        Michael Ellerman <mpe@...erman.id.au>,
        Sasha Levin <sashal@...nel.org>, linuxppc-dev@...ts.ozlabs.org
Subject: [PATCH AUTOSEL 4.19 12/29] powerpc/64: mark start_here_multiplatform as __ref

From: Christophe Leroy <christophe.leroy@....fr>

[ Upstream commit 9c4e4c90ec24652921e31e9551fcaedc26eec86d ]

Otherwise, the following warning is encountered:

WARNING: vmlinux.o(.text+0x3dc6): Section mismatch in reference from the variable start_here_multiplatform to the function .init.text:.early_setup()
The function start_here_multiplatform() references
the function __init .early_setup().
This is often because start_here_multiplatform lacks a __init
annotation or the annotation of .early_setup is wrong.

Fixes: 56c46bba9bbf ("powerpc/64: Fix booting large kernels with STRICT_KERNEL_RWX")
Cc: Russell Currey <ruscur@...sell.cc>
Signed-off-by: Christophe Leroy <christophe.leroy@....fr>
Signed-off-by: Michael Ellerman <mpe@...erman.id.au>
Signed-off-by: Sasha Levin <sashal@...nel.org>
---
 arch/powerpc/kernel/head_64.S | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/arch/powerpc/kernel/head_64.S b/arch/powerpc/kernel/head_64.S
index 9168a247e24ff..3fb564f3e8874 100644
--- a/arch/powerpc/kernel/head_64.S
+++ b/arch/powerpc/kernel/head_64.S
@@ -906,6 +906,7 @@ p_toc:	.8byte	__toc_start + 0x8000 - 0b
 /*
  * This is where the main kernel code starts.
  */
+__REF
 start_here_multiplatform:
 	/* set up the TOC */
 	bl      relative_toc
@@ -981,6 +982,7 @@ start_here_multiplatform:
 	RFI
 	b	.	/* prevent speculative execution */
 
+	.previous
 	/* This is where all platforms converge execution */
 
 start_here_common:
-- 
2.20.1