From 2635a4bdfa8d513c531fa7d7a0ccafc1d6a9ff85 Mon Sep 17 00:00:00 2001
From: Samuel Ortiz <sameo@linux.intel.com>
Date: Tue, 28 May 2013 15:03:17 +0200
Subject: [PATCH] NFC: llcp: Do not send pending Tx frames when the remote is
not ready
When we receive a RNR, the remote is busy processing the last received
frame. We set a local flag for that, and we should send a SYMM when it
is set instead of sending any pending frame.
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
---
net/nfc/llcp_core.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/net/nfc/llcp_core.c b/net/nfc/llcp_core.c
index 44730f0edfd8..47746a088f8f 100644
--- a/net/nfc/llcp_core.c
+++ b/net/nfc/llcp_core.c
@@ -721,6 +721,9 @@ static void nfc_llcp_tx_work(struct work_struct *work)
if (llcp_sock == NULL && nfc_llcp_ptype(skb) == LLCP_PDU_I) {
kfree_skb(skb);
nfc_llcp_send_symm(local->dev);
+ } else if (llcp_sock && !llcp_sock->remote_ready) {
+ skb_queue_head(&local->tx_queue, skb);
+ nfc_llcp_send_symm(local->dev);
} else {
struct sk_buff *copy_skb = NULL;
u8 ptype = nfc_llcp_ptype(skb);