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Diffstat (limited to 'net/nfc/nci/data.c')
-rw-r--r--net/nfc/nci/data.c35
1 files changed, 19 insertions, 16 deletions
diff --git a/net/nfc/nci/data.c b/net/nfc/nci/data.c
index e5ed90fc1a9c..e5756b30e602 100644
--- a/net/nfc/nci/data.c
+++ b/net/nfc/nci/data.c
@@ -21,6 +21,8 @@
21 * 21 *
22 */ 22 */
23 23
24#define pr_fmt(fmt) KBUILD_MODNAME ": %s: " fmt, __func__
25
24#include <linux/types.h> 26#include <linux/types.h>
25#include <linux/interrupt.h> 27#include <linux/interrupt.h>
26#include <linux/wait.h> 28#include <linux/wait.h>
@@ -40,7 +42,7 @@ void nci_data_exchange_complete(struct nci_dev *ndev,
40 data_exchange_cb_t cb = ndev->data_exchange_cb; 42 data_exchange_cb_t cb = ndev->data_exchange_cb;
41 void *cb_context = ndev->data_exchange_cb_context; 43 void *cb_context = ndev->data_exchange_cb_context;
42 44
43 nfc_dbg("entry, len %d, err %d", ((skb) ? (skb->len) : (0)), err); 45 pr_debug("len %d, err %d\n", skb ? skb->len : 0, err);
44 46
45 if (cb) { 47 if (cb) {
46 ndev->data_exchange_cb = NULL; 48 ndev->data_exchange_cb = NULL;
@@ -49,7 +51,7 @@ void nci_data_exchange_complete(struct nci_dev *ndev,
49 /* forward skb to nfc core */ 51 /* forward skb to nfc core */
50 cb(cb_context, skb, err); 52 cb(cb_context, skb, err);
51 } else if (skb) { 53 } else if (skb) {
52 nfc_err("no rx callback, dropping rx data..."); 54 pr_err("no rx callback, dropping rx data...\n");
53 55
54 /* no waiting callback, free skb */ 56 /* no waiting callback, free skb */
55 kfree_skb(skb); 57 kfree_skb(skb);
@@ -90,12 +92,13 @@ static int nci_queue_tx_data_frags(struct nci_dev *ndev,
90 int frag_len; 92 int frag_len;
91 int rc = 0; 93 int rc = 0;
92 94
93 nfc_dbg("entry, conn_id 0x%x, total_len %d", conn_id, total_len); 95 pr_debug("conn_id 0x%x, total_len %d\n", conn_id, total_len);
94 96
95 __skb_queue_head_init(&frags_q); 97 __skb_queue_head_init(&frags_q);
96 98
97 while (total_len) { 99 while (total_len) {
98 frag_len = min_t(int, total_len, ndev->max_pkt_payload_size); 100 frag_len =
101 min_t(int, total_len, ndev->max_data_pkt_payload_size);
99 102
100 skb_frag = nci_skb_alloc(ndev, 103 skb_frag = nci_skb_alloc(ndev,
101 (NCI_DATA_HDR_SIZE + frag_len), 104 (NCI_DATA_HDR_SIZE + frag_len),
@@ -118,8 +121,8 @@ static int nci_queue_tx_data_frags(struct nci_dev *ndev,
118 data += frag_len; 121 data += frag_len;
119 total_len -= frag_len; 122 total_len -= frag_len;
120 123
121 nfc_dbg("frag_len %d, remaining total_len %d", 124 pr_debug("frag_len %d, remaining total_len %d\n",
122 frag_len, total_len); 125 frag_len, total_len);
123 } 126 }
124 127
125 /* queue all fragments atomically */ 128 /* queue all fragments atomically */
@@ -148,10 +151,10 @@ int nci_send_data(struct nci_dev *ndev, __u8 conn_id, struct sk_buff *skb)
148{ 151{
149 int rc = 0; 152 int rc = 0;
150 153
151 nfc_dbg("entry, conn_id 0x%x, plen %d", conn_id, skb->len); 154 pr_debug("conn_id 0x%x, plen %d\n", conn_id, skb->len);
152 155
153 /* check if the packet need to be fragmented */ 156 /* check if the packet need to be fragmented */
154 if (skb->len <= ndev->max_pkt_payload_size) { 157 if (skb->len <= ndev->max_data_pkt_payload_size) {
155 /* no need to fragment packet */ 158 /* no need to fragment packet */
156 nci_push_data_hdr(ndev, conn_id, skb, NCI_PBF_LAST); 159 nci_push_data_hdr(ndev, conn_id, skb, NCI_PBF_LAST);
157 160
@@ -160,7 +163,7 @@ int nci_send_data(struct nci_dev *ndev, __u8 conn_id, struct sk_buff *skb)
160 /* fragment packet and queue the fragments */ 163 /* fragment packet and queue the fragments */
161 rc = nci_queue_tx_data_frags(ndev, conn_id, skb); 164 rc = nci_queue_tx_data_frags(ndev, conn_id, skb);
162 if (rc) { 165 if (rc) {
163 nfc_err("failed to fragment tx data packet"); 166 pr_err("failed to fragment tx data packet\n");
164 goto free_exit; 167 goto free_exit;
165 } 168 }
166 } 169 }
@@ -190,7 +193,7 @@ static void nci_add_rx_data_frag(struct nci_dev *ndev,
190 193
191 /* first, make enough room for the already accumulated data */ 194 /* first, make enough room for the already accumulated data */
192 if (skb_cow_head(skb, reassembly_len)) { 195 if (skb_cow_head(skb, reassembly_len)) {
193 nfc_err("error adding room for accumulated rx data"); 196 pr_err("error adding room for accumulated rx data\n");
194 197
195 kfree_skb(skb); 198 kfree_skb(skb);
196 skb = 0; 199 skb = 0;
@@ -227,19 +230,19 @@ void nci_rx_data_packet(struct nci_dev *ndev, struct sk_buff *skb)
227{ 230{
228 __u8 pbf = nci_pbf(skb->data); 231 __u8 pbf = nci_pbf(skb->data);
229 232
230 nfc_dbg("entry, len %d", skb->len); 233 pr_debug("len %d\n", skb->len);
231 234
232 nfc_dbg("NCI RX: MT=data, PBF=%d, conn_id=%d, plen=%d", 235 pr_debug("NCI RX: MT=data, PBF=%d, conn_id=%d, plen=%d\n",
233 nci_pbf(skb->data), 236 nci_pbf(skb->data),
234 nci_conn_id(skb->data), 237 nci_conn_id(skb->data),
235 nci_plen(skb->data)); 238 nci_plen(skb->data));
236 239
237 /* strip the nci data header */ 240 /* strip the nci data header */
238 skb_pull(skb, NCI_DATA_HDR_SIZE); 241 skb_pull(skb, NCI_DATA_HDR_SIZE);
239 242
240 if (ndev->target_active_prot == NFC_PROTO_MIFARE) { 243 if (ndev->target_active_prot == NFC_PROTO_MIFARE) {
241 /* frame I/F => remove the status byte */ 244 /* frame I/F => remove the status byte */
242 nfc_dbg("NFC_PROTO_MIFARE => remove the status byte"); 245 pr_debug("NFC_PROTO_MIFARE => remove the status byte\n");
243 skb_trim(skb, (skb->len - 1)); 246 skb_trim(skb, (skb->len - 1));
244 } 247 }
245 248