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Date:   Mon, 18 Feb 2019 14:43:37 +0100
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org, Meelis Roos <mroos@...ux.ee>,
        Matt Turner <mattst88@...il.com>
Subject: [PATCH 4.19 71/85] alpha: Fix Eiger NR_IRQS to 128

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

------------------

From: Meelis Roos <mroos@...ux.ee>

commit bfc913682464f45bc4d6044084e370f9048de9d5 upstream.

Eiger machine vector definition has nr_irqs 128, and working 2.6.26
boot shows SCSI getting IRQ-s 64 and 65. Current kernel boot fails
because Symbios SCSI fails to request IRQ-s and does not find the disks.
It has been broken at least since 3.18 - the earliest I could test with
my gcc-5.

The headers have moved around and possibly another order of defines has
worked in the past - but since 128 seems to be correct and used, fix
arch/alpha/include/asm/irq.h to have NR_IRQS=128 for Eiger.

This fixes 4.19-rc7 boot on my Force Flexor A264 (Eiger subarch).

Cc: stable@...r.kernel.org # v3.18+
Signed-off-by: Meelis Roos <mroos@...ux.ee>
Signed-off-by: Matt Turner <mattst88@...il.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>

---
 arch/alpha/include/asm/irq.h |    6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

--- a/arch/alpha/include/asm/irq.h
+++ b/arch/alpha/include/asm/irq.h
@@ -56,15 +56,15 @@
 
 #elif defined(CONFIG_ALPHA_DP264) || \
       defined(CONFIG_ALPHA_LYNX)  || \
-      defined(CONFIG_ALPHA_SHARK) || \
-      defined(CONFIG_ALPHA_EIGER)
+      defined(CONFIG_ALPHA_SHARK)
 # define NR_IRQS	64
 
 #elif defined(CONFIG_ALPHA_TITAN)
 #define NR_IRQS		80
 
 #elif defined(CONFIG_ALPHA_RAWHIDE) || \
-	defined(CONFIG_ALPHA_TAKARA)
+      defined(CONFIG_ALPHA_TAKARA) || \
+      defined(CONFIG_ALPHA_EIGER)
 # define NR_IRQS	128
 
 #elif defined(CONFIG_ALPHA_WILDFIRE)


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