linux-kernel - [PATCH 4.2.y-ckt 064/305] ARM: dove: Fix legacy get_irqnr_and

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Message-Id: <1452902519-2754-65-git-send-email-kamal@canonical.com>
Date:	Fri, 15 Jan 2016 15:57:58 -0800
From:	Kamal Mostafa <kamal@...onical.com>
To:	linux-kernel@...r.kernel.org, stable@...r.kernel.org,
	kernel-team@...ts.ubuntu.com
Cc:	Nicolas Pitre <nico@...aro.org>,
	Jason Cooper <jason@...edaemon.net>,
	Kamal Mostafa <kamal@...onical.com>
Subject: [PATCH 4.2.y-ckt 064/305] ARM: dove: Fix legacy get_irqnr_and_base

4.2.8-ckt2 -stable review patch.  If anyone has any objections, please let me know.

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

From: Nicolas Pitre <nicolas.pitre@...aro.org>

commit c1c90728efa49eab81ae816718d84116a22b790e upstream.

Commit 5d6bed2a9c ("ARM: dove: fix legacy dove IRQ numbers") shifted
IRQ numbers by one but didn't update the get_irqnr_and_base macro
accordingly.  This macro is involved when CONFIG_MULTI_IRQ_HANDLER
is not defined.

[jac: 5d6bed2a9c went in to v4.2, but was backported to v3.18]

Signed-off-by: Nicolas Pitre <nico@...aro.org>
Fixes: 5d6bed2a9c ("ARM: dove: fix legacy dove IRQ numbers")
Signed-off-by: Jason Cooper <jason@...edaemon.net>
Signed-off-by: Kamal Mostafa <kamal@...onical.com>
---
 arch/arm/mach-dove/include/mach/entry-macro.S | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/arch/arm/mach-dove/include/mach/entry-macro.S b/arch/arm/mach-dove/include/mach/entry-macro.S
index 72d622b..df1d44b 100644
--- a/arch/arm/mach-dove/include/mach/entry-macro.S
+++ b/arch/arm/mach-dove/include/mach/entry-macro.S
@@ -18,13 +18,13 @@
 	@ check low interrupts
 	ldr	\irqstat, [\base, #IRQ_CAUSE_LOW_OFF]
 	ldr	\tmp, [\base, #IRQ_MASK_LOW_OFF]
-	mov	\irqnr, #31
+	mov	\irqnr, #32
 	ands	\irqstat, \irqstat, \tmp
 
 	@ if no low interrupts set, check high interrupts
 	ldreq	\irqstat, [\base, #IRQ_CAUSE_HIGH_OFF]
 	ldreq	\tmp, [\base, #IRQ_MASK_HIGH_OFF]
-	moveq	\irqnr, #63
+	moveq	\irqnr, #64
 	andeqs	\irqstat, \irqstat, \tmp
 
 	@ find first active interrupt source
-- 
1.9.1