From: Vinay Kumar Yadav vinay.yadav@chelsio.com
commit bc16efd2430652f894ae34b1de5eccc3bf0d2810 upstream.
When sge queue is full and chcr_ktls_xmit_wr_complete() returns failure, skb is not freed if it is not the last tls record in this skb, causes refcount never gets freed and tls_dev_del() never gets called on this connection.
Fixes: 5a4b9fe7fece ("cxgb4/chcr: complete record tx handling") Signed-off-by: Vinay Kumar Yadav vinay.yadav@chelsio.com Signed-off-by: Rohit Maheshwari rohitm@chelsio.com Signed-off-by: David S. Miller davem@davemloft.net Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- drivers/net/ethernet/chelsio/inline_crypto/ch_ktls/chcr_ktls.c | 6 ++++++ 1 file changed, 6 insertions(+)
--- a/drivers/net/ethernet/chelsio/inline_crypto/ch_ktls/chcr_ktls.c +++ b/drivers/net/ethernet/chelsio/inline_crypto/ch_ktls/chcr_ktls.c @@ -1740,7 +1740,9 @@ static int chcr_end_part_handler(struct struct sge_eth_txq *q, u32 skb_offset, u32 tls_end_offset, bool last_wr) { + bool free_skb_if_tx_fails = false; struct sk_buff *nskb = NULL; + /* check if it is a complete record */ if (tls_end_offset == record->len) { nskb = skb; @@ -1763,6 +1765,8 @@ static int chcr_end_part_handler(struct
if (last_wr) dev_kfree_skb_any(skb); + else + free_skb_if_tx_fails = true;
last_wr = true;
@@ -1774,6 +1778,8 @@ static int chcr_end_part_handler(struct record->num_frags, (last_wr && tcp_push_no_fin), mss)) { + if (free_skb_if_tx_fails) + dev_kfree_skb_any(skb); goto out; } tx_info->prev_seq = record->end_seq;