[PATCH 4.9 73/88] alpha: fix reboot on Avanti platform

From: Greg Kroah-Hartman
Date: Thu Feb 15 2018 - 13:09:35 EST


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

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

From: Mikulas Patocka <mpatocka@xxxxxxxxxx>

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@xxxxxxxxxx>
Signed-off-by: Matt Turner <mattst88@xxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>

---
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