Thread (9 messages) flat view 9 messages, 5 authors, 2012-12-06

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

From: Armando Visconti <hidden>
Date: 2012-12-03 16:44:47
Also in: lkml

On 11/29/2012 12:04 PM, Armando VISCONTI wrote:
quoted hunk ↗ jump to hunk
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<redacted>
---
  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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