https://github.com/torvalds/linux
Tip revision: 085b7755808aa11f78ab9377257e1dad2e6fa4bb authored by Linus Torvalds on 21 April 2019, 17:45:57 UTC
Linux 5.1-rc6
Linux 5.1-rc6
Tip revision: 085b775
rtl8188eu_recv.c
// SPDX-License-Identifier: GPL-2.0
/******************************************************************************
*
* Copyright(c) 2007 - 2011 Realtek Corporation. All rights reserved.
*
******************************************************************************/
#define _RTL8188EU_RECV_C_
#include <linux/kmemleak.h>
#include <osdep_service.h>
#include <drv_types.h>
#include <recv_osdep.h>
#include <mlme_osdep.h>
#include <usb_ops_linux.h>
#include <wifi.h>
#include <rtl8188e_hal.h>
int rtw_hal_init_recv_priv(struct adapter *padapter)
{
struct recv_priv *precvpriv = &padapter->recvpriv;
int i, res = _SUCCESS;
struct recv_buf *precvbuf;
tasklet_init(&precvpriv->recv_tasklet,
(void(*)(unsigned long))rtl8188eu_recv_tasklet,
(unsigned long)padapter);
/* init recv_buf */
_rtw_init_queue(&precvpriv->free_recv_buf_queue);
precvpriv->precv_buf =
kcalloc(NR_RECVBUFF, sizeof(struct recv_buf), GFP_KERNEL);
if (!precvpriv->precv_buf) {
res = _FAIL;
RT_TRACE(_module_rtl871x_recv_c_, _drv_err_,
("alloc recv_buf fail!\n"));
goto exit;
}
precvbuf = precvpriv->precv_buf;
for (i = 0; i < NR_RECVBUFF; i++) {
res = rtw_os_recvbuf_resource_alloc(padapter, precvbuf);
if (res == _FAIL)
break;
precvbuf->adapter = padapter;
precvbuf++;
}
skb_queue_head_init(&precvpriv->rx_skb_queue);
{
int i;
struct sk_buff *pskb = NULL;
skb_queue_head_init(&precvpriv->free_recv_skb_queue);
for (i = 0; i < NR_PREALLOC_RECV_SKB; i++) {
pskb = __netdev_alloc_skb(padapter->pnetdev,
MAX_RECVBUF_SZ, GFP_KERNEL);
if (pskb) {
kmemleak_not_leak(pskb);
skb_queue_tail(&precvpriv->free_recv_skb_queue,
pskb);
}
pskb = NULL;
}
}
exit:
return res;
}
void rtw_hal_free_recv_priv(struct adapter *padapter)
{
int i;
struct recv_buf *precvbuf;
struct recv_priv *precvpriv = &padapter->recvpriv;
precvbuf = precvpriv->precv_buf;
for (i = 0; i < NR_RECVBUFF; i++) {
usb_free_urb(precvbuf->purb);
precvbuf++;
}
kfree(precvpriv->precv_buf);
if (skb_queue_len(&precvpriv->rx_skb_queue))
DBG_88E(KERN_WARNING "rx_skb_queue not empty\n");
skb_queue_purge(&precvpriv->rx_skb_queue);
if (skb_queue_len(&precvpriv->free_recv_skb_queue))
DBG_88E(KERN_WARNING "free_recv_skb_queue not empty, %d\n",
skb_queue_len(&precvpriv->free_recv_skb_queue));
skb_queue_purge(&precvpriv->free_recv_skb_queue);
}