diff options
| author | Jakub Kicinski <jakub.kicinski@netronome.com> | 2019-06-10 21:39:59 -0700 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2019-06-11 12:22:26 -0700 |
| commit | 4967373959cd8a437df92413ea932e638a0518b1 (patch) | |
| tree | 23e241c8223f9e59f118e7262f011d3dad463a5d | |
| parent | 46088059aaa0ec2143a1005bfc58d2a7c741b93f (diff) | |
net/tls: simplify seq calculation in handle_device_resync()
We subtract "TLS_HEADER_SIZE - 1" from req_seq, then if they
match we add the same constant to seq. Just add it to seq,
and we don't have to touch req_seq.
Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Reviewed-by: Dirk van der Merwe <dirk.vandermerwe@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
| -rw-r--r-- | net/tls/tls_device.c | 7 |
1 files changed, 3 insertions, 4 deletions
diff --git a/net/tls/tls_device.c b/net/tls/tls_device.c index 43f2deb57078..59f0c8dacbcc 100644 --- a/net/tls/tls_device.c +++ b/net/tls/tls_device.c @@ -576,14 +576,13 @@ void handle_device_resync(struct sock *sk, u32 seq, u64 rcd_sn) rx_ctx = tls_offload_ctx_rx(tls_ctx); resync_req = atomic64_read(&rx_ctx->resync_req); - req_seq = (resync_req >> 32) - ((u32)TLS_HEADER_SIZE - 1); + req_seq = resync_req >> 32; + seq += TLS_HEADER_SIZE - 1; is_req_pending = resync_req; if (unlikely(is_req_pending) && req_seq == seq && - atomic64_try_cmpxchg(&rx_ctx->resync_req, &resync_req, 0)) { - seq += TLS_HEADER_SIZE - 1; + atomic64_try_cmpxchg(&rx_ctx->resync_req, &resync_req, 0)) tls_device_resync_rx(tls_ctx, sk, seq, rcd_sn); - } } static int tls_device_reencrypt(struct sock *sk, struct sk_buff *skb) |