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-rw-r--r--arch/arm/common/mcpm_entry.c5
1 files changed, 5 insertions, 0 deletions
diff --git a/arch/arm/common/mcpm_entry.c b/arch/arm/common/mcpm_entry.c
index c5fe2e33e6c3..492467587c58 100644
--- a/arch/arm/common/mcpm_entry.c
+++ b/arch/arm/common/mcpm_entry.c
@@ -20,6 +20,11 @@
#include <asm/cputype.h>
#include <asm/suspend.h>
+/*
+ * The public API for this code is documented in arch/arm/include/asm/mcpm.h.
+ * For a comprehensive description of the main algorithm used here, please
+ * see Documentation/arm/cluster-pm-race-avoidance.txt.
+ */
struct sync_struct mcpm_sync;