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[3.19.y-ckt,stable] Patch "xtensa: clear all DBREAKC registers on start" has been added to the 3.19.y-ckt tree

Message ID 1459558232-19931-1-git-send-email-kamal@canonical.com
State New
Headers show

Commit Message

Kamal Mostafa April 2, 2016, 12:50 a.m. UTC
This is a note to let you know that I have just added a patch titled

    xtensa: clear all DBREAKC registers on start

to the linux-3.19.y-queue branch of the 3.19.y-ckt extended stable tree 
which can be found at:

    http://kernel.ubuntu.com/git/ubuntu/linux.git/log/?h=linux-3.19.y-queue

This patch is scheduled to be released in version 3.19.8-ckt18.

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

For more information about the 3.19.y-ckt tree, see
https://wiki.ubuntu.com/Kernel/Dev/ExtendedStable

Thanks.
-Kamal

---8<------------------------------------------------------------

From 948295579b8ae192d15b09591d7664422765a02f Mon Sep 17 00:00:00 2001
From: Max Filippov <jcmvbkbc@gmail.com>
Date: Thu, 3 Mar 2016 18:34:29 +0300
Subject: xtensa: clear all DBREAKC registers on start

commit 7de7ac785ae18a2cdc78d7560f48e3213d9ea0ab upstream.

There are XCHAL_NUM_DBREAK registers, clear them all.
This also fixes cryptic assembler error message with binutils 2.25 when
XCHAL_NUM_DBREAK is 0:

  as: out of memory allocating 18446744073709551575 bytes after a total
  of 495616 bytes

Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
Signed-off-by: Kamal Mostafa <kamal@canonical.com>
---
 arch/xtensa/kernel/head.S | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--
2.7.4
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Patch

diff --git a/arch/xtensa/kernel/head.S b/arch/xtensa/kernel/head.S
index 9ed5564..05e1df9 100644
--- a/arch/xtensa/kernel/head.S
+++ b/arch/xtensa/kernel/head.S
@@ -128,7 +128,7 @@  ENTRY(_startup)
 	wsr	a0, icountlevel

 	.set	_index, 0
-	.rept	XCHAL_NUM_DBREAK - 1
+	.rept	XCHAL_NUM_DBREAK
 	wsr	a0, SREG_DBREAKC + _index
 	.set	_index, _index + 1
 	.endr