Re: [PATCH] nommu: Enable the strict alignment (CR_A) bit only ifARCH < v6

From: Armando Visconti
Date: Mon Dec 03 2012 - 11:44:37 EST


On 11/29/2012 12:04 PM, Armando VISCONTI wrote:
This patch keeps disabled the strict alignment CP15 bit for
all armv6 and armv7 processor without the mmu. This behaviour
is now same as in the mmu case.

Signed-off-by: Armando Visconti<armando.visconti@xxxxxx>
---
arch/arm/kernel/head-nommu.S | 2 +-
1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/arch/arm/kernel/head-nommu.S b/arch/arm/kernel/head-nommu.S
index 278cfc1..2c228a0 100644
--- a/arch/arm/kernel/head-nommu.S
+++ b/arch/arm/kernel/head-nommu.S
@@ -68,7 +68,7 @@ __after_proc_init:
* CP15 system control register value returned in r0 from
* the CPU init function.
*/
-#ifdef CONFIG_ALIGNMENT_TRAP
+#if defined(CONFIG_ALIGNMENT_TRAP)&& __LINUX_ARM_ARCH__< 6
orr r0, r0, #CR_A
#else
bic r0, r0, #CR_A

Any feedback on this simple patch?

Thx,
Armando


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