linux-kernel - [PATCH 3.8-stable] ARM: 7690/1: mm: fix CONFIG

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Message-id: <000001ce418b$320597d0$9610c770$%choi@samsung.com>
Date:	Thu, 25 Apr 2013 17:02:13 +0900
From:	Jonghwan Choi <jhbird.choi@...sung.com>
To:	'Jonghwan Choi' <jhbird.choi@...sung.com>,
	linux-kernel@...r.kernel.org
Cc:	stable@...r.kernel.org, 'Paul Bolle' <pebolle@...cali.nl>,
	'Russell King' <linux@....linux.org.uk>,
	'Will Deacon' <will.deacon@....com>
Subject: [PATCH 3.8-stable] ARM: 7690/1: mm: fix CONFIG_LPAE typos

This patch looks like it should be in the 3.8-stable tree, should we apply
it?

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

From: "Paul Bolle <pebolle@...cali.nl>"

commit 4e1db26a0b42e2b6e27c05d68adcc01709c2eed2 upstream

CONFIG_LPAE doesn't exist: the correct option is CONFIG_ARM_LPAE, so fix
up the two typos under arch/arm/.

The fix to head.S is slightly scary, but this is just for setting up
an early io-mapping for the serial port when running on a big-endian,
LPAE system. Since these systems don't exist in the wild (at least, I
have no access to one outside of kvmtool, which doesn't provide a serial
port suitable for earlyprintk), then we can revisit the code later if it
causes any problems.

Signed-off-by: Paul Bolle <pebolle@...cali.nl>
Signed-off-by: Will Deacon <will.deacon@....com>
Signed-off-by: Russell King <rmk+kernel@....linux.org.uk>
Signed-off-by: Jonghwan Choi <jhbird.choi@...sung.com>
---
 arch/arm/kernel/head.S  |    2 +-
 arch/arm/kernel/setup.c |    2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/arch/arm/kernel/head.S b/arch/arm/kernel/head.S
index e0eb9a1..8bac553 100644
--- a/arch/arm/kernel/head.S
+++ b/arch/arm/kernel/head.S
@@ -267,7 +267,7 @@ __create_page_tables:
 	addne	r6, r6, #1 << SECTION_SHIFT
 	strne	r6, [r3]
 
-#if defined(CONFIG_LPAE) && defined(CONFIG_CPU_ENDIAN_BE8)
+#if defined(CONFIG_ARM_LPAE) && defined(CONFIG_CPU_ENDIAN_BE8)
 	sub	r4, r4, #4			@ Fixup page table pointer
 						@ for 64-bit descriptors
 #endif
diff --git a/arch/arm/kernel/setup.c b/arch/arm/kernel/setup.c
index 3f6cbb2..62ead98 100644
--- a/arch/arm/kernel/setup.c
+++ b/arch/arm/kernel/setup.c
@@ -524,7 +524,7 @@ int __init arm_add_memory(phys_addr_t start, phys_addr_t
size)
 	size -= start & ~PAGE_MASK;
 	bank->start = PAGE_ALIGN(start);
 
-#ifndef CONFIG_LPAE
+#ifndef CONFIG_ARM_LPAE
 	if (bank->start + size < bank->start) {
 		printk(KERN_CRIT "Truncating memory at 0x%08llx to fit in "
 			"32-bit physical address space\n", (long
long)start);
-- 
1.7.9.5

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