This is a note to let you know that I've just added the patch titled
ARM: fix noMMU kallsyms symbol filtering
to the 3.13-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
arm-fix-nommu-kallsyms-symbol-filtering.patch
and it can be found in the queue-3.13 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From 006fa2599bf0daf107cbb7a8a99fcfb9a998a169 Mon Sep 17 00:00:00 2001
From: Russell King <rmk+kernel@xxxxxxxxxxxxxxxx>
Date: Wed, 26 Feb 2014 19:40:46 +0000
Subject: ARM: fix noMMU kallsyms symbol filtering
From: Russell King <rmk+kernel@xxxxxxxxxxxxxxxx>
commit 006fa2599bf0daf107cbb7a8a99fcfb9a998a169 upstream.
With noMMU, CONFIG_PAGE_OFFSET was not being set correctly. As there's
no MMU, PAGE_OFFSET should be equal to PHYS_OFFSET in all cases. This
commit makes that explicit.
Since we do this, we don't need to mess around in asm/memory.h with
ifdefs to sort this out, so let's get rid of that, and there's no point
offering the "Memory split" option for noMMU as that's meaningless
there.
Fixes: b9b32bf70f2f ("ARM: use linker magic for vectors and vector stubs")
Signed-off-by: Russell King <rmk+kernel@xxxxxxxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
arch/arm/Kconfig | 2 ++
arch/arm/include/asm/memory.h | 9 +++------
2 files changed, 5 insertions(+), 6 deletions(-)
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -1543,6 +1543,7 @@ config BL_SWITCHER_DUMMY_IF
choice
prompt "Memory split"
+ depends on MMU
default VMSPLIT_3G
help
Select the desired split between kernel and user memory.
@@ -1560,6 +1561,7 @@ endchoice
config PAGE_OFFSET
hex
+ default PHYS_OFFSET if !MMU
default 0x40000000 if VMSPLIT_1G
default 0x80000000 if VMSPLIT_2G
default 0xC0000000
--- a/arch/arm/include/asm/memory.h
+++ b/arch/arm/include/asm/memory.h
@@ -30,14 +30,15 @@
*/
#define UL(x) _AC(x, UL)
+/* PAGE_OFFSET - the virtual address of the start of the kernel image */
+#define PAGE_OFFSET UL(CONFIG_PAGE_OFFSET)
+
#ifdef CONFIG_MMU
/*
- * PAGE_OFFSET - the virtual address of the start of the kernel image
* TASK_SIZE - the maximum size of a user space task.
* TASK_UNMAPPED_BASE - the lower boundary of the mmap VM area
*/
-#define PAGE_OFFSET UL(CONFIG_PAGE_OFFSET)
#define TASK_SIZE (UL(CONFIG_PAGE_OFFSET) - UL(SZ_16M))
#define TASK_UNMAPPED_BASE ALIGN(TASK_SIZE / 3, SZ_16M)
@@ -104,10 +105,6 @@
#define END_MEM (UL(CONFIG_DRAM_BASE) + CONFIG_DRAM_SIZE)
#endif
-#ifndef PAGE_OFFSET
-#define PAGE_OFFSET PLAT_PHYS_OFFSET
-#endif
-
/*
* The module can be at any place in ram in nommu mode.
*/
Patches currently in stable-queue which might be from rmk+kernel@xxxxxxxxxxxxxxxx are
queue-3.13/arm-7991-1-sa1100-fix-compile-problem-on-collie.patch
queue-3.13/arm-fix-nommu-kallsyms-symbol-filtering.patch
queue-3.13/drm-armada-fix-use-of-kfifo_put.patch
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