From: Li RongQing <[email protected]> 

If disable IPV6, and the warning will happen:
    drivers/infiniband/hw/ocrdma/ocrdma_main.c:650:1: warning: label 
‘err_notifier6’ defined but not used [-Wunused-label]

Signed-off-by: Li RongQing <[email protected]>
---
 drivers/infiniband/hw/ocrdma/ocrdma_main.c |    2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/infiniband/hw/ocrdma/ocrdma_main.c 
b/drivers/infiniband/hw/ocrdma/ocrdma_main.c
index 256a06b..c108623 100644
--- a/drivers/infiniband/hw/ocrdma/ocrdma_main.c
+++ b/drivers/infiniband/hw/ocrdma/ocrdma_main.c
@@ -646,8 +646,10 @@ static int __init ocrdma_init_module(void)
        return 0;
 
 err_be_reg:
+#if IS_ENABLED(CONFIG_IPV6)
        ocrdma_unregister_inet6addr_notifier();
 err_notifier6:
+#endif
        ocrdma_unregister_inetaddr_notifier();
        return status;
 }
-- 
1.7.10.4

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