linux-kernel - [PATCH 3.16 146/410] alpha: fix reboot on Avanti platform

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Message-ID: <lsq.1528380321.327853688@decadent.org.uk>
Date:   Thu, 07 Jun 2018 15:05:21 +0100
From:   Ben Hutchings <ben@...adent.org.uk>
To:     linux-kernel@...r.kernel.org, stable@...r.kernel.org
CC:     akpm@...ux-foundation.org, "Mikulas Patocka" <mpatocka@...hat.com>,
        "Matt Turner" <mattst88@...il.com>
Subject: [PATCH 3.16 146/410] alpha: fix reboot on Avanti platform

3.16.57-rc1 review patch.  If anyone has any objections, please let me know.

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

From: Mikulas Patocka <mpatocka@...hat.com>

commit 55fc633c41a08ce9244ff5f528f420b16b1e04d6 upstream.

We need to define NEED_SRM_SAVE_RESTORE on the Avanti, otherwise we get
machine check exception when attempting to reboot the machine.

Signed-off-by: Mikulas Patocka <mpatocka@...hat.com>
Signed-off-by: Matt Turner <mattst88@...il.com>
Signed-off-by: Ben Hutchings <ben@...adent.org.uk>
---
 arch/alpha/kernel/pci_impl.h | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

--- a/arch/alpha/kernel/pci_impl.h
+++ b/arch/alpha/kernel/pci_impl.h
@@ -143,7 +143,8 @@ struct pci_iommu_arena
 };
 
 #if defined(CONFIG_ALPHA_SRM) && \
-    (defined(CONFIG_ALPHA_CIA) || defined(CONFIG_ALPHA_LCA))
+    (defined(CONFIG_ALPHA_CIA) || defined(CONFIG_ALPHA_LCA) || \
+     defined(CONFIG_ALPHA_AVANTI))
 # define NEED_SRM_SAVE_RESTORE
 #else
 # undef NEED_SRM_SAVE_RESTORE