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Diffstat (limited to 'net/mptcp/options.c')
-rw-r--r--net/mptcp/options.c8
1 files changed, 4 insertions, 4 deletions
diff --git a/net/mptcp/options.c b/net/mptcp/options.c
index 38e34a1fb2dd..8ed2d9f4a84d 100644
--- a/net/mptcp/options.c
+++ b/net/mptcp/options.c
@@ -1233,7 +1233,7 @@ static void mptcp_set_rwin(const struct tcp_sock *tp)
WRITE_ONCE(msk->rcv_wnd_sent, ack_seq);
}
-static u16 __mptcp_make_csum(u64 data_seq, u32 subflow_seq, u16 data_len, __sum16 sum)
+u16 __mptcp_make_csum(u64 data_seq, u32 subflow_seq, u16 data_len, __wsum sum)
{
struct csum_pseudo_header header;
__wsum csum;
@@ -1248,14 +1248,14 @@ static u16 __mptcp_make_csum(u64 data_seq, u32 subflow_seq, u16 data_len, __sum1
header.data_len = htons(data_len);
header.csum = 0;
- csum = csum_partial(&header, sizeof(header), ~csum_unfold(sum));
+ csum = csum_partial(&header, sizeof(header), sum);
return (__force u16)csum_fold(csum);
}
static u16 mptcp_make_csum(const struct mptcp_ext *mpext)
{
return __mptcp_make_csum(mpext->data_seq, mpext->subflow_seq, mpext->data_len,
- mpext->csum);
+ ~csum_unfold(mpext->csum));
}
void mptcp_write_options(__be32 *ptr, const struct tcp_sock *tp,
@@ -1376,7 +1376,7 @@ void mptcp_write_options(__be32 *ptr, const struct tcp_sock *tp,
__mptcp_make_csum(opts->data_seq,
opts->subflow_seq,
opts->data_len,
- opts->csum), ptr);
+ ~csum_unfold(opts->csum)), ptr);
} else {
put_unaligned_be32(opts->data_len << 16 |
TCPOPT_NOP << 8 | TCPOPT_NOP, ptr);