1 files changed, 2 insertions, 0 deletions

diff --git a/arch/alpha/kernel/core_t2.c b/arch/alpha/kernel/core_t2.c
index c0750291b44a..d9980d47ab81 100644
--- a/arch/alpha/kernel/core_t2.c
+++ b/arch/alpha/kernel/core_t2.c
@@ -74,6 +74,8 @@
 # define DBG(args)
 #endif
 
+DEFINE_SPINLOCK(t2_hae_lock);
+
 static volatile unsigned int t2_mcheck_any_expected;
 static volatile unsigned int t2_mcheck_last_taken;