[PATCH 4.15 171/202] alpha: fix reboot on Avanti platform

[Greg Kroah-Hartman]

4.15-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
@@ -144,7 +144,8 @@ 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