cregit-Linux how code gets into the kernel

Release 4.7 drivers/staging/rtl8712/recv_linux.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; }

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/*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; }

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ali baharali bahar10.90%133.33%
Total111100.00%3100.00%

/*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; }

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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); }

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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++; }

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punit varapunit vara10.48%125.00%
Total207100.00%4100.00%


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); }

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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); }

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Total26100.00%2100.00%


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larry fingerlarry finger59595.05%110.00%
ali baharali bahar101.60%220.00%
vaishali thakkarvaishali thakkar91.44%110.00%
eric dumazeteric dumazet60.96%110.00%
sandhya bankarsandhya bankar20.32%110.00%
punit varapunit vara10.16%110.00%
bhaktipriya shridharbhaktipriya shridhar10.16%110.00%
melike yurtoglumelike yurtoglu10.16%110.00%
bhumika goyalbhumika goyal10.16%110.00%
Total626100.00%10100.00%
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