1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
|
--- a/drivers/net/wireless/ath/ath5k/desc.c
+++ b/drivers/net/wireless/ath/ath5k/desc.c
@@ -603,37 +603,37 @@ static int ath5k_hw_proc_5212_rx_status(
struct ath5k_rx_status *rs)
{
struct ath5k_hw_rx_status *rx_status;
+ u32 rxstat0, rxstat1;
rx_status = &desc->ud.ds_rx.rx_stat;
+ rxstat1 = ACCESS_ONCE(rx_status->rx_status_1);
/* No frame received / not ready */
- if (unlikely(!(rx_status->rx_status_1 &
- AR5K_5212_RX_DESC_STATUS1_DONE)))
+ if (unlikely(!(rxstat1 & AR5K_5212_RX_DESC_STATUS1_DONE)))
return -EINPROGRESS;
memset(rs, 0, sizeof(struct ath5k_rx_status));
+ rxstat0 = ACCESS_ONCE(rx_status->rx_status_0);
/*
* Frame receive status
*/
- rs->rs_datalen = rx_status->rx_status_0 &
- AR5K_5212_RX_DESC_STATUS0_DATA_LEN;
- rs->rs_rssi = AR5K_REG_MS(rx_status->rx_status_0,
+ rs->rs_datalen = rxstat0 & AR5K_5212_RX_DESC_STATUS0_DATA_LEN;
+ rs->rs_rssi = AR5K_REG_MS(rxstat0,
AR5K_5212_RX_DESC_STATUS0_RECEIVE_SIGNAL);
- rs->rs_rate = AR5K_REG_MS(rx_status->rx_status_0,
+ rs->rs_rate = AR5K_REG_MS(rxstat0,
AR5K_5212_RX_DESC_STATUS0_RECEIVE_RATE);
- rs->rs_antenna = AR5K_REG_MS(rx_status->rx_status_0,
+ rs->rs_antenna = AR5K_REG_MS(rxstat0,
AR5K_5212_RX_DESC_STATUS0_RECEIVE_ANTENNA);
- rs->rs_more = !!(rx_status->rx_status_0 &
- AR5K_5212_RX_DESC_STATUS0_MORE);
- rs->rs_tstamp = AR5K_REG_MS(rx_status->rx_status_1,
+ rs->rs_more = !!(rxstat0 & AR5K_5212_RX_DESC_STATUS0_MORE);
+ rs->rs_tstamp = AR5K_REG_MS(rxstat1,
AR5K_5212_RX_DESC_STATUS1_RECEIVE_TIMESTAMP);
/*
* Key table status
*/
- if (rx_status->rx_status_1 & AR5K_5212_RX_DESC_STATUS1_KEY_INDEX_VALID)
- rs->rs_keyix = AR5K_REG_MS(rx_status->rx_status_1,
+ if (rxstat1 & AR5K_5212_RX_DESC_STATUS1_KEY_INDEX_VALID)
+ rs->rs_keyix = AR5K_REG_MS(rxstat1,
AR5K_5212_RX_DESC_STATUS1_KEY_INDEX);
else
rs->rs_keyix = AR5K_RXKEYIX_INVALID;
@@ -641,27 +641,22 @@ static int ath5k_hw_proc_5212_rx_status(
/*
* Receive/descriptor errors
*/
- if (!(rx_status->rx_status_1 &
- AR5K_5212_RX_DESC_STATUS1_FRAME_RECEIVE_OK)) {
- if (rx_status->rx_status_1 &
- AR5K_5212_RX_DESC_STATUS1_CRC_ERROR)
+ if (!(rxstat1 & AR5K_5212_RX_DESC_STATUS1_FRAME_RECEIVE_OK)) {
+ if (rxstat1 & AR5K_5212_RX_DESC_STATUS1_CRC_ERROR)
rs->rs_status |= AR5K_RXERR_CRC;
- if (rx_status->rx_status_1 &
- AR5K_5212_RX_DESC_STATUS1_PHY_ERROR) {
+ if (rxstat1 & AR5K_5212_RX_DESC_STATUS1_PHY_ERROR) {
rs->rs_status |= AR5K_RXERR_PHY;
- rs->rs_phyerr = AR5K_REG_MS(rx_status->rx_status_1,
+ rs->rs_phyerr = AR5K_REG_MS(rxstat1,
AR5K_5212_RX_DESC_STATUS1_PHY_ERROR_CODE);
if (!ah->ah_capabilities.cap_has_phyerr_counters)
ath5k_ani_phy_error_report(ah, rs->rs_phyerr);
}
- if (rx_status->rx_status_1 &
- AR5K_5212_RX_DESC_STATUS1_DECRYPT_CRC_ERROR)
+ if (rxstat1 & AR5K_5212_RX_DESC_STATUS1_DECRYPT_CRC_ERROR)
rs->rs_status |= AR5K_RXERR_DECRYPT;
- if (rx_status->rx_status_1 &
- AR5K_5212_RX_DESC_STATUS1_MIC_ERROR)
+ if (rxstat1 & AR5K_5212_RX_DESC_STATUS1_MIC_ERROR)
rs->rs_status |= AR5K_RXERR_MIC;
}
return 0;
|
