Re: [PATCH 1/2] ARM: default PHYS_OFFSET if !MMU

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Hi all,

On 13/11/13 11:46, Jonathan Austin wrote:
Hi Ming,

On 13/11/13 11:15, Ming Lei wrote:
From: Jonathan Austin <jonathan.austin@xxxxxxx>

Set CONFIG_PAGE_OFFSET as PHYS_OFFSET when !MMU so that
we can keep CONFIG_PAGE_OFFSET same with PAGE_OFFSET.


I'm not so sure about this commit message - I don't think
it makes sense...Should it not be more like:

------->8-------
Subject: ARM: set PAGE_OFFSET = PHYS_OFFSET if !MMU

With !MMU we still set PAGE_OFFSET to 0xC0000000, which
makes little sense and causes a regression on !MMU after
f6537f2f0eba4eba ("scripts/kallsyms: filter symbols not
kernel address space")

This patch sets PAGE_OFFSET to PHYS_OFFSET in the !MMU
case, fixing the regression (Tested on Cortex-R7/Vexpress)
--------8<---------

Russell: Will you pick this patch up from the list or does
it need to go in through the patch system?


What's the status of this patch? Shall I put it in the patch system with the commit message above? Or is it going via someone else?

Jonny


Jonny

This patch and patch 2/2 fix regression on !MMU by
f6537f2f0eba4eba("scripts/kallsyms: filter symbols not
in kernel address space")

Cc: <stable@xxxxxxxxxxxxxxx>
Signed-off-by: Jonathan Austin <jonathan.austin@xxxxxxx>
Signed-off-by: Ming Lei <tom.leiming@xxxxxxxxx>
---
   arch/arm/Kconfig |    1 +
   1 file changed, 1 insertion(+)

diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
index 799ef94..db708c4 100644
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -1560,6 +1560,7 @@ endchoice

   config PAGE_OFFSET
   	hex
+	default PHYS_OFFSET if !MMU
   	default 0x40000000 if VMSPLIT_1G
   	default 0x80000000 if VMSPLIT_2G
   	default 0xC0000000




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