From d01dc4c3c1209e865368d5f8d3b5e08f97326ca9 Mon Sep 17 00:00:00 2001 From: David Howells Date: Sat, 17 Sep 2016 10:49:12 +0100 Subject: [PATCH] rxrpc: Fix the parsing of soft-ACKs The soft-ACK parser doesn't increment the pointer into the soft-ACK list, resulting in the first ACK/NACK value being applied to all the relevant packets in the Tx queue. This has the potential to miss retransmissions and cause excessive retransmissions. Fix this by incrementing the pointer. Signed-off-by: David Howells --- net/rxrpc/input.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/net/rxrpc/input.c b/net/rxrpc/input.c index f0d9115b9b7e..c1f83d22f9b7 100644 --- a/net/rxrpc/input.c +++ b/net/rxrpc/input.c @@ -384,7 +384,7 @@ static void rxrpc_input_soft_acks(struct rxrpc_call *call, u8 *acks, for (; nr_acks > 0; nr_acks--, seq++) { ix = seq & RXRPC_RXTX_BUFF_MASK; - switch (*acks) { + switch (*acks++) { case RXRPC_ACK_TYPE_ACK: call->rxtx_annotations[ix] = RXRPC_TX_ANNO_ACK; break; -- 2.20.1