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-rw-r--r--include/net/mptcp.h5
1 files changed, 4 insertions, 1 deletions
diff --git a/include/net/mptcp.h b/include/net/mptcp.h
index c4a6ef4ba35b..46d0487d2b22 100644
--- a/include/net/mptcp.h
+++ b/include/net/mptcp.h
@@ -16,7 +16,10 @@ struct seq_file;
/* MPTCP sk_buff extension data */
struct mptcp_ext {
- u64 data_ack;
+ union {
+ u64 data_ack;
+ u32 data_ack32;
+ };
u64 data_seq;
u32 subflow_seq;
u16 data_len;