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authorSamuel Ortiz <sameo@linux.intel.com>2012-03-05 01:03:35 +0100
committerJohn W. Linville <linville@tuxdriver.com>2012-03-06 15:16:19 -0500
commit4722d2b70b80098e1e429e093a7e04aad360260a (patch)
treea46a7e22fa7698533a9752b2021c3e740131bc90 /net
parentc970a1ac4e75a5d31c7b6e8e9f0bb192b0a511e7 (diff)
downloadlwn-4722d2b70b80098e1e429e093a7e04aad360260a.tar.gz
lwn-4722d2b70b80098e1e429e093a7e04aad360260a.zip
NFC: Factorize the I frame queueing routine
This one will be called from the I frame command sending. Signed-off-by: Samuel Ortiz <sameo@linux.intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'net')
-rw-r--r--net/nfc/llcp/llcp.c45
-rw-r--r--net/nfc/llcp/llcp.h1
2 files changed, 29 insertions, 17 deletions
diff --git a/net/nfc/llcp/llcp.c b/net/nfc/llcp/llcp.c
index 1d32680807d6..8510a2fb3da8 100644
--- a/net/nfc/llcp/llcp.c
+++ b/net/nfc/llcp/llcp.c
@@ -616,6 +616,33 @@ fail:
}
+void nfc_llcp_queue_i_frames(struct nfc_llcp_sock *sock)
+{
+ struct nfc_llcp_local *local = sock->local;
+
+ pr_debug("Remote ready %d tx queue len %d remote rw %d",
+ sock->remote_ready, skb_queue_len(&sock->tx_pending_queue),
+ local->remote_rw);
+
+ /* Try to queue some I frames for transmission */
+ while (sock->remote_ready &&
+ skb_queue_len(&sock->tx_pending_queue) < local->remote_rw) {
+ struct sk_buff *pdu, *pending_pdu;
+
+ pdu = skb_dequeue(&sock->tx_queue);
+ if (pdu == NULL)
+ break;
+
+ /* Update N(S)/N(R) */
+ nfc_llcp_set_nrns(sock, pdu);
+
+ pending_pdu = skb_clone(pdu, GFP_KERNEL);
+
+ skb_queue_tail(&local->tx_queue, pdu);
+ skb_queue_tail(&sock->tx_pending_queue, pending_pdu);
+ }
+}
+
static void nfc_llcp_recv_hdlc(struct nfc_llcp_local *local,
struct sk_buff *skb)
{
@@ -673,23 +700,7 @@ static void nfc_llcp_recv_hdlc(struct nfc_llcp_local *local,
}
}
- /* Queue some I frames for transmission */
- while (llcp_sock->remote_ready &&
- skb_queue_len(&llcp_sock->tx_pending_queue) <= local->remote_rw) {
- struct sk_buff *pdu, *pending_pdu;
-
- pdu = skb_dequeue(&llcp_sock->tx_queue);
- if (pdu == NULL)
- break;
-
- /* Update N(S)/N(R) */
- nfc_llcp_set_nrns(llcp_sock, pdu);
-
- pending_pdu = skb_clone(pdu, GFP_KERNEL);
-
- skb_queue_tail(&local->tx_queue, pdu);
- skb_queue_tail(&llcp_sock->tx_pending_queue, pending_pdu);
- }
+ nfc_llcp_queue_i_frames(llcp_sock);
release_sock(sk);
nfc_llcp_sock_put(llcp_sock);
diff --git a/net/nfc/llcp/llcp.h b/net/nfc/llcp/llcp.h
index 0ad2e3361584..0a72ee627641 100644
--- a/net/nfc/llcp/llcp.h
+++ b/net/nfc/llcp/llcp.h
@@ -165,6 +165,7 @@ u8 nfc_llcp_get_sdp_ssap(struct nfc_llcp_local *local,
struct nfc_llcp_sock *sock);
u8 nfc_llcp_get_local_ssap(struct nfc_llcp_local *local);
void nfc_llcp_put_ssap(struct nfc_llcp_local *local, u8 ssap);
+void nfc_llcp_queue_i_frames(struct nfc_llcp_sock *sock);
/* Sock API */
struct sock *nfc_llcp_sock_alloc(struct socket *sock, int type, gfp_t gfp);