[3.5.y.z extended stable] Patch "ARM: 7957/1: add DSB after icache flush in __flush_icache_all()" has been added to staging queue

[Luis Henriques]

This is a note to let you know that I have just added a patch titled

    ARM: 7957/1: add DSB after icache flush in __flush_icache_all()

to the linux-3.5.y-queue branch of the 3.5.y.z extended stable tree 
which can be found at:

 http://kernel.ubuntu.com/git?p=ubuntu/linux.git;a=shortlog;h=refs/heads/linux-3.5.y-queue

If you, or anyone else, feels it should not be added to this tree, please 
reply to this email.

For more information about the 3.5.y.z tree, see
https://wiki.ubuntu.com/Kernel/Dev/ExtendedStable

Thanks.
-Luis

------

>From fac9b1080d5db2d73939991af40fdd126ce60705 Mon Sep 17 00:00:00 2001
From: Vinayak Kale <vkale at apm.com>
Date: Wed, 12 Feb 2014 07:30:01 +0100
Subject: ARM: 7957/1: add DSB after icache flush in __flush_icache_all()

commit 39544ac9df20f73e49fc6b9ac19ff533388c82c0 upstream.

Add DSB after icache flush to complete the cache maintenance operation.

Signed-off-by: Vinayak Kale <vkale at apm.com>
Acked-by: Catalin Marinas <catalin.marinas at arm.com>
Signed-off-by: Russell King <rmk+kernel at arm.linux.org.uk>
Signed-off-by: Luis Henriques <luis.henriques at canonical.com>
---
 arch/arm/include/asm/cacheflush.h | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/arm/include/asm/cacheflush.h b/arch/arm/include/asm/cacheflush.h
index 76d7f24..5ff9726 100644
--- a/arch/arm/include/asm/cacheflush.h
+++ b/arch/arm/include/asm/cacheflush.h
@@ -202,6 +202,7 @@ extern void copy_to_user_page(struct vm_area_struct *, struct page *,
 static inline void __flush_icache_all(void)
 {
 	__flush_icache_preferred();
+	dsb();
 }

 #define flush_cache_all()		__cpuc_flush_kern_all()
--
1.9.0