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-rw-r--r--arch/s390/include/asm/chsc.h15
1 files changed, 15 insertions, 0 deletions
diff --git a/arch/s390/include/asm/chsc.h b/arch/s390/include/asm/chsc.h
index bb48ea380c0d..bb78159d8042 100644
--- a/arch/s390/include/asm/chsc.h
+++ b/arch/s390/include/asm/chsc.h
@@ -11,6 +11,9 @@
#include <uapi/asm/chsc.h>
+/* struct from linux/notifier.h */
+struct notifier_block;
+
/**
* Operation codes for CHSC PNSO:
* PNSO_OC_NET_BRIDGE_INFO - only addresses that are visible to a bridgeport
@@ -66,4 +69,16 @@ struct chsc_pnso_area {
struct chsc_pnso_naid_l2 entries[];
} __packed __aligned(PAGE_SIZE);
+/*
+ * notifier interface - registered notifiers gets called on
+ * the following events:
+ * - ap config changed (CHSC_NOTIFY_AP_CFG)
+ */
+enum chsc_notify_type {
+ CHSC_NOTIFY_AP_CFG = 3,
+};
+
+int chsc_notifier_register(struct notifier_block *nb);
+int chsc_notifier_unregister(struct notifier_block *nb);
+
#endif /* _ASM_S390_CHSC_H */