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path: root/drivers/staging/rtl8712/rtl8712_recv.c
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Diffstat (limited to 'drivers/staging/rtl8712/rtl8712_recv.c')
-rw-r--r--drivers/staging/rtl8712/rtl8712_recv.c66
1 files changed, 42 insertions, 24 deletions
diff --git a/drivers/staging/rtl8712/rtl8712_recv.c b/drivers/staging/rtl8712/rtl8712_recv.c
index f25b34c7d115..66f0e0a35167 100644
--- a/drivers/staging/rtl8712/rtl8712_recv.c
+++ b/drivers/staging/rtl8712/rtl8712_recv.c
@@ -60,7 +60,7 @@ int r8712_init_recv_priv(struct recv_priv *precvpriv, struct _adapter *padapter)
_init_queue(&precvpriv->free_recv_buf_queue);
precvpriv->pallocated_recv_buf =
kzalloc(NR_RECVBUFF * sizeof(struct recv_buf) + 4, GFP_ATOMIC);
- if (precvpriv->pallocated_recv_buf == NULL)
+ if (!precvpriv->pallocated_recv_buf)
return _FAIL;
precvpriv->precv_buf = precvpriv->pallocated_recv_buf + 4 -
((addr_t) (precvpriv->pallocated_recv_buf) & 3);
@@ -163,7 +163,8 @@ static void update_recvframe_attrib_from_recvstat(struct rx_pkt_attrib *pattrib,
drvinfo_sz = (le32_to_cpu(prxstat->rxdw0) & 0x000f0000) >> 16;
drvinfo_sz <<= 3;
/*TODO:
- * Offset 0 */
+ * Offset 0
+ */
pattrib->bdecrypted = ((le32_to_cpu(prxstat->rxdw0) & BIT(27)) >> 27)
? 0 : 1;
pattrib->crc_err = (le32_to_cpu(prxstat->rxdw0) & BIT(14)) >> 14;
@@ -210,7 +211,8 @@ static union recv_frame *recvframe_defrag(struct _adapter *adapter,
curfragnum = 0;
if (curfragnum != pfhdr->attrib.frag_num) {
/*the first fragment number must be 0
- *free the whole queue*/
+ *free the whole queue
+ */
r8712_free_recvframe(prframe, pfree_recv_queue);
r8712_free_recvframe_queue(defrag_q, pfree_recv_queue);
return NULL;
@@ -224,18 +226,21 @@ static union recv_frame *recvframe_defrag(struct _adapter *adapter,
/*check the fragment sequence (2nd ~n fragment frame) */
if (curfragnum != pnfhdr->attrib.frag_num) {
/* the fragment number must increase (after decache)
- * release the defrag_q & prframe */
+ * release the defrag_q & prframe
+ */
r8712_free_recvframe(prframe, pfree_recv_queue);
r8712_free_recvframe_queue(defrag_q, pfree_recv_queue);
return NULL;
}
curfragnum++;
/* copy the 2nd~n fragment frame's payload to the first fragment
- * get the 2nd~last fragment frame's payload */
+ * get the 2nd~last fragment frame's payload
+ */
wlanhdr_offset = pnfhdr->attrib.hdrlen + pnfhdr->attrib.iv_len;
recvframe_pull(pnextrframe, wlanhdr_offset);
/* append to first fragment frame's tail (if privacy frame,
- * pull the ICV) */
+ * pull the ICV)
+ */
recvframe_pull_tail(prframe, pfhdr->attrib.icv_len);
memcpy(pfhdr->rx_tail, pnfhdr->rx_data, pnfhdr->len);
recvframe_put(prframe, pnfhdr->len);
@@ -269,7 +274,7 @@ union recv_frame *r8712_recvframe_chk_defrag(struct _adapter *padapter,
fragnum = pfhdr->attrib.frag_num;
psta_addr = pfhdr->attrib.ta;
psta = r8712_get_stainfo(pstapriv, psta_addr);
- if (psta == NULL)
+ if (!psta)
pdefrag_q = NULL;
else
pdefrag_q = &psta->sta_recvpriv.defrag_q;
@@ -278,7 +283,8 @@ union recv_frame *r8712_recvframe_chk_defrag(struct _adapter *padapter,
prtnframe = precv_frame;/*isn't a fragment frame*/
if (ismfrag == 1) {
/* 0~(n-1) fragment frame
- * enqueue to defraf_g */
+ * enqueue to defraf_g
+ */
if (pdefrag_q != NULL) {
if (fragnum == 0) {
/*the first fragment*/
@@ -294,7 +300,8 @@ union recv_frame *r8712_recvframe_chk_defrag(struct _adapter *padapter,
prtnframe = NULL;
} else {
/* can't find this ta's defrag_queue, so free this
- * recv_frame */
+ * recv_frame
+ */
r8712_free_recvframe(precv_frame, pfree_recv_queue);
prtnframe = NULL;
}
@@ -302,7 +309,8 @@ union recv_frame *r8712_recvframe_chk_defrag(struct _adapter *padapter,
}
if ((ismfrag == 0) && (fragnum != 0)) {
/* the last fragment frame
- * enqueue the last fragment */
+ * enqueue the last fragment
+ */
if (pdefrag_q != NULL) {
phead = &pdefrag_q->queue;
list_add_tail(&pfhdr->list, phead);
@@ -311,7 +319,8 @@ union recv_frame *r8712_recvframe_chk_defrag(struct _adapter *padapter,
prtnframe = precv_frame;
} else {
/* can't find this ta's defrag_queue, so free this
- * recv_frame */
+ * recv_frame
+ */
r8712_free_recvframe(precv_frame, pfree_recv_queue);
prtnframe = NULL;
}
@@ -391,7 +400,8 @@ static int amsdu_to_msdu(struct _adapter *padapter, union recv_frame *prframe)
eth_type != ETH_P_AARP && eth_type != ETH_P_IPX) ||
!memcmp(sub_skb->data, bridge_tunnel_header, SNAP_SIZE))) {
/* remove RFC1042 or Bridge-Tunnel encapsulation and
- * replace EtherType */
+ * replace EtherType
+ */
skb_pull(sub_skb, SNAP_SIZE);
memcpy(skb_push(sub_skb, ETH_ALEN), pattrib->src,
ETH_ALEN);
@@ -530,7 +540,8 @@ int r8712_recv_indicatepkts_in_order(struct _adapter *padapter,
preorder_ctrl->indicate_seq = pattrib->seq_num;
}
/* Prepare indication list and indication.
- * Check if there is any packet need indicate. */
+ * Check if there is any packet need indicate.
+ */
while (!list_empty(phead)) {
prframe = container_of(plist, union recv_frame, u.list);
pattrib = &prframe->u.hdr.attrib;
@@ -757,7 +768,8 @@ static void query_rx_phy_status(struct _adapter *padapter,
/* Modify the RF RNA gain value to -40, -20,
* -2, 14 by Jenyu's suggestion
* Note: different RF with the different
- * RNA gain. */
+ * RNA gain.
+ */
case 0x3:
rx_pwr_all = -40 - (pcck_buf->cck_agc_rpt &
0x3e);
@@ -842,7 +854,8 @@ static void query_rx_phy_status(struct _adapter *padapter,
total_rssi += rssi;
}
/* (2)PWDB, Average PWDB cacluated by hardware (for
- * rate adaptive) */
+ * rate adaptive)
+ */
rx_pwr_all = (((pphy_head[PHY_STAT_PWDB_ALL_SHT]) >> 1) & 0x7f)
- 106;
pwdb_all = query_rx_pwr_percentage(rx_pwr_all);
@@ -870,7 +883,8 @@ static void query_rx_phy_status(struct _adapter *padapter,
}
/* UI BSS List signal strength(in percentage), make it good looking,
* from 0~100. It is assigned to the BSS List in
- * GetValueFromBeaconOrProbeRsp(). */
+ * GetValueFromBeaconOrProbeRsp().
+ */
if (bcck_rate)
prframe->u.hdr.attrib.signal_strength =
(u8)r8712_signal_scale_mapping(pwdb_all);
@@ -985,15 +999,15 @@ int recv_func(struct _adapter *padapter, void *pcontext)
}
process_phy_info(padapter, prframe);
prframe = r8712_decryptor(padapter, prframe);
- if (prframe == NULL) {
+ if (!prframe) {
retval = _FAIL;
goto _exit_recv_func;
}
prframe = r8712_recvframe_chk_defrag(padapter, prframe);
- if (prframe == NULL)
+ if (!prframe)
goto _exit_recv_func;
prframe = r8712_portctrl(padapter, prframe);
- if (prframe == NULL) {
+ if (!prframe) {
retval = _FAIL;
goto _exit_recv_func;
}
@@ -1027,10 +1041,12 @@ static int recvbuf2recvframe(struct _adapter *padapter, struct sk_buff *pskb)
transfer_len = pskb->len;
/* Test throughput with Netgear 3700 (No security) with Chariot 3T3R
* pairs. The packet count will be a big number so that the containing
- * packet will effect the Rx reordering. */
+ * packet will effect the Rx reordering.
+ */
if (transfer_len < pkt_len) {
/* In this case, it means the MAX_RECVBUF_SZ is too small to
- * get the data from 8712u. */
+ * get the data from 8712u.
+ */
return _FAIL;
}
do {
@@ -1049,7 +1065,7 @@ static int recvbuf2recvframe(struct _adapter *padapter, struct sk_buff *pskb)
if ((le32_to_cpu(prxstat->rxdw0) >> 23) & 0x01)
shift_sz = 2;
precvframe = r8712_alloc_recvframe(pfree_recv_queue);
- if (precvframe == NULL)
+ if (!precvframe)
goto _exit_recvbuf2recvframe;
INIT_LIST_HEAD(&precvframe->u.hdr.list);
precvframe->u.hdr.precvbuf = NULL; /*can't access the precvbuf*/
@@ -1057,14 +1073,16 @@ static int recvbuf2recvframe(struct _adapter *padapter, struct sk_buff *pskb)
tmp_len = pkt_len + drvinfo_sz + RXDESC_SIZE;
pkt_offset = (u16)round_up(tmp_len, 128);
/* for first fragment packet, driver need allocate 1536 +
- * drvinfo_sz + RXDESC_SIZE to defrag packet. */
+ * drvinfo_sz + RXDESC_SIZE to defrag packet.
+ */
if ((mf == 1) && (frag == 0))
/*1658+6=1664, 1664 is 128 alignment.*/
alloc_sz = max_t(u16, tmp_len, 1658);
else
alloc_sz = tmp_len;
/* 2 is for IP header 4 bytes alignment in QoS packet case.
- * 4 is for skb->data 4 bytes alignment. */
+ * 4 is for skb->data 4 bytes alignment.
+ */
alloc_sz += 6;
pkt_copy = netdev_alloc_skb(padapter->pnetdev, alloc_sz);
if (pkt_copy) {
Copyright © 1996 – 2023 Jason A. Donenfeld. All Rights Reverse Engineered.