[ 3.8.y.z extended stable ] Patch "ARM: 7723/1: crypto: sha1-armv4-large.S: fix SP handling" has been added to staging queue

[Kamal Mostafa]

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

    ARM: 7723/1: crypto: sha1-armv4-large.S: fix SP handling

to the linux-3.8.y-queue branch of the 3.8.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-3.8.y-queue

This patch is scheduled to be released in version 3.8.13.2.

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

For more information about the 3.8.y.z tree, see
https://wiki.ubuntu.com/Kernel/Dev/ExtendedStable

Thanks.
-Kamal

------

>From 3359aa984201542958fe42543d3495e633019927 Mon Sep 17 00:00:00 2001
From: Ard Biesheuvel <ard.biesheuvel at gmail.com>
Date: Wed, 15 May 2013 10:46:30 +0100
Subject: ARM: 7723/1: crypto: sha1-armv4-large.S: fix SP handling

commit 934fc24df10abfd5aff533d0d044a17669d77d79 upstream.

Make the SHA1 asm code ABI conformant by making sure all stack
accesses occur above the stack pointer.

Origin:
http://git.openssl.org/gitweb/?p=openssl.git;a=commit;h=1a9d60d2

Signed-off-by: Ard Biesheuvel <ard.biesheuvel at linaro.org>
Acked-by: Nicolas Pitre <nico at linaro.org>
Signed-off-by: Russell King <rmk+kernel at arm.linux.org.uk>
Signed-off-by: Kamal Mostafa <kamal at canonical.com>
---
 arch/arm/crypto/sha1-armv4-large.S | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/arm/crypto/sha1-armv4-large.S b/arch/arm/crypto/sha1-armv4-large.S
index 92c6eed..99207c4 100644
--- a/arch/arm/crypto/sha1-armv4-large.S
+++ b/arch/arm/crypto/sha1-armv4-large.S
@@ -195,6 +195,7 @@ ENTRY(sha1_block_data_order)
 	add	r3,r3,r10			@ E+=F_00_19(B,C,D)
 	cmp	r14,sp
 	bne	.L_00_15		@ [((11+4)*5+2)*3]
+	sub	sp,sp,#25*4
 #if __ARM_ARCH__<7
 	ldrb	r10,[r1,#2]
 	ldrb	r9,[r1,#3]
@@ -290,7 +291,6 @@ ENTRY(sha1_block_data_order)
 	add	r3,r3,r10			@ E+=F_00_19(B,C,D)

 	ldr	r8,.LK_20_39		@ [+15+16*4]
-	sub	sp,sp,#25*4
 	cmn	sp,#0			@ [+3], clear carry to denote 20_39
 .L_20_39_or_60_79:
 	ldr	r9,[r14,#15*4]
--
1.8.1.2