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Commit 4722d2b7 authored by Samuel Ortiz's avatar Samuel Ortiz Committed by John W. Linville
Browse files

NFC: Factorize the I frame queueing routine 



This one will be called from the I frame command sending.

Signed-off-by: default avatarSamuel Ortiz <sameo@linux.intel.com>
Signed-off-by: default avatarJohn W. Linville <linville@tuxdriver.com>
parent c970a1ac

net/nfc/llcp/llcp.c

+28 −17
Original line number Diff line number Diff line
@@ -616,6 +616,33 @@ static void nfc_llcp_recv_connect(struct nfc_llcp_local *local, 


}



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);

net/nfc/llcp/llcp.h

+1 −0
Original line number Diff line number Diff line
@@ -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);