![Sandhya Bankar](/assets/img/avatar_default.png)
Avoid multiple assignments.This isssue is found by checkpatch.pl script. Signed-off-by: Sandhya Bankar <bankarsandhya512@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
156 lines
4.5 KiB
C
156 lines
4.5 KiB
C
/******************************************************************************
|
|
* recv_linux.c
|
|
*
|
|
* Copyright(c) 2007 - 2010 Realtek Corporation. All rights reserved.
|
|
* Linux device driver for RTL8192SU
|
|
*
|
|
* This program is free software; you can redistribute it and/or modify it
|
|
* under the terms of version 2 of the GNU General Public License as
|
|
* published by the Free Software Foundation.
|
|
*
|
|
* This program is distributed in the hope that it will be useful, but WITHOUT
|
|
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
|
|
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
|
|
* more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License along with
|
|
* this program; if not, write to the Free Software Foundation, Inc.,
|
|
* 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA
|
|
*
|
|
* Modifications for inclusion into the Linux staging tree are
|
|
* Copyright(c) 2010 Larry Finger. All rights reserved.
|
|
*
|
|
* Contact information:
|
|
* WLAN FAE <wlanfae@realtek.com>.
|
|
* Larry Finger <Larry.Finger@lwfinger.net>
|
|
*
|
|
******************************************************************************/
|
|
|
|
#define _RECV_OSDEP_C_
|
|
|
|
#include <linux/usb.h>
|
|
|
|
#include "osdep_service.h"
|
|
#include "drv_types.h"
|
|
#include "wifi.h"
|
|
#include "recv_osdep.h"
|
|
#include "osdep_intf.h"
|
|
#include "ethernet.h"
|
|
#include <linux/if_arp.h>
|
|
#include "usb_ops.h"
|
|
|
|
/*init os related resource in struct recv_priv*/
|
|
/*alloc os related resource in union recv_frame*/
|
|
int r8712_os_recv_resource_alloc(struct _adapter *padapter,
|
|
union recv_frame *precvframe)
|
|
{
|
|
precvframe->u.hdr.pkt_newalloc = NULL;
|
|
precvframe->u.hdr.pkt = NULL;
|
|
return _SUCCESS;
|
|
}
|
|
|
|
/*alloc os related resource in struct recv_buf*/
|
|
int r8712_os_recvbuf_resource_alloc(struct _adapter *padapter,
|
|
struct recv_buf *precvbuf)
|
|
{
|
|
int res = _SUCCESS;
|
|
|
|
precvbuf->irp_pending = false;
|
|
precvbuf->purb = usb_alloc_urb(0, GFP_KERNEL);
|
|
if (!precvbuf->purb)
|
|
res = _FAIL;
|
|
precvbuf->pskb = NULL;
|
|
precvbuf->reuse = false;
|
|
precvbuf->pallocated_buf = NULL;
|
|
precvbuf->pbuf = NULL;
|
|
precvbuf->pdata = NULL;
|
|
precvbuf->phead = NULL;
|
|
precvbuf->ptail = NULL;
|
|
precvbuf->pend = NULL;
|
|
precvbuf->transfer_len = 0;
|
|
precvbuf->len = 0;
|
|
return res;
|
|
}
|
|
|
|
/*free os related resource in struct recv_buf*/
|
|
int r8712_os_recvbuf_resource_free(struct _adapter *padapter,
|
|
struct recv_buf *precvbuf)
|
|
{
|
|
if (precvbuf->pskb)
|
|
dev_kfree_skb_any(precvbuf->pskb);
|
|
if (precvbuf->purb) {
|
|
usb_kill_urb(precvbuf->purb);
|
|
usb_free_urb(precvbuf->purb);
|
|
}
|
|
return _SUCCESS;
|
|
}
|
|
|
|
void r8712_handle_tkip_mic_err(struct _adapter *padapter, u8 bgroup)
|
|
{
|
|
union iwreq_data wrqu;
|
|
struct iw_michaelmicfailure ev;
|
|
struct mlme_priv *pmlmepriv = &padapter->mlmepriv;
|
|
|
|
memset(&ev, 0x00, sizeof(ev));
|
|
if (bgroup)
|
|
ev.flags |= IW_MICFAILURE_GROUP;
|
|
else
|
|
ev.flags |= IW_MICFAILURE_PAIRWISE;
|
|
ev.src_addr.sa_family = ARPHRD_ETHER;
|
|
ether_addr_copy(ev.src_addr.sa_data, &pmlmepriv->assoc_bssid[0]);
|
|
memset(&wrqu, 0x00, sizeof(wrqu));
|
|
wrqu.data.length = sizeof(ev);
|
|
wireless_send_event(padapter->pnetdev, IWEVMICHAELMICFAILURE, &wrqu,
|
|
(char *)&ev);
|
|
}
|
|
|
|
void r8712_recv_indicatepkt(struct _adapter *padapter,
|
|
union recv_frame *precv_frame)
|
|
{
|
|
struct recv_priv *precvpriv;
|
|
struct __queue *pfree_recv_queue;
|
|
_pkt *skb;
|
|
struct rx_pkt_attrib *pattrib = &precv_frame->u.hdr.attrib;
|
|
|
|
precvpriv = &(padapter->recvpriv);
|
|
pfree_recv_queue = &(precvpriv->free_recv_queue);
|
|
skb = precv_frame->u.hdr.pkt;
|
|
if (!skb)
|
|
goto _recv_indicatepkt_drop;
|
|
skb->data = precv_frame->u.hdr.rx_data;
|
|
skb->len = precv_frame->u.hdr.len;
|
|
skb_set_tail_pointer(skb, skb->len);
|
|
if ((pattrib->tcpchk_valid == 1) && (pattrib->tcp_chkrpt == 1))
|
|
skb->ip_summed = CHECKSUM_UNNECESSARY;
|
|
else
|
|
skb->ip_summed = CHECKSUM_NONE;
|
|
skb->dev = padapter->pnetdev;
|
|
skb->protocol = eth_type_trans(skb, padapter->pnetdev);
|
|
netif_rx(skb);
|
|
precv_frame->u.hdr.pkt = NULL; /* pointers to NULL before
|
|
* r8712_free_recvframe()
|
|
*/
|
|
r8712_free_recvframe(precv_frame, pfree_recv_queue);
|
|
return;
|
|
_recv_indicatepkt_drop:
|
|
/*enqueue back to free_recv_queue*/
|
|
if (precv_frame)
|
|
r8712_free_recvframe(precv_frame, pfree_recv_queue);
|
|
precvpriv->rx_drop++;
|
|
}
|
|
|
|
static void _r8712_reordering_ctrl_timeout_handler (unsigned long data)
|
|
{
|
|
struct recv_reorder_ctrl *preorder_ctrl =
|
|
(struct recv_reorder_ctrl *)data;
|
|
|
|
r8712_reordering_ctrl_timeout_handler(preorder_ctrl);
|
|
}
|
|
|
|
void r8712_init_recv_timer(struct recv_reorder_ctrl *preorder_ctrl)
|
|
{
|
|
setup_timer(&preorder_ctrl->reordering_ctrl_timer,
|
|
_r8712_reordering_ctrl_timeout_handler,
|
|
(unsigned long)preorder_ctrl);
|
|
}
|