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ath9k: use the ieee80211_hw to get to an sband on ath_rx_prepare() 

No need to use the private driver structure to get to an sband.
This will make it easier to share this code with ath9k_htc.

With the sc gone we can now just pass the common structure to
ath_rx_prepare().

Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Luis R. Rodriguez 2009-11-03 15:57:16 -08:00 committed by John W. Linville
parent 3d536acf45
commit 712c13a86a
1 changed files with 20 additions and 19 deletions
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39
drivers/net/wireless/ath/ath9k/recv.c
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@ -91,18 +91,19 @@ static void ath_setdefantenna(struct ath_softc *sc, u32 antenna)
* up the frame up to let mac80211 handle the actual error case, be it no
* decryption key or real decryption error. This let us keep statistics there.
*/
static int ath_rx_prepare(struct ieee80211_hw *hw,
static int ath_rx_prepare(struct ath_common *common,
struct ieee80211_hw *hw,
struct sk_buff *skb, struct ath_rx_status *rx_stats,
struct ieee80211_rx_status *rx_status, bool *decrypt_error,
struct ath_softc *sc)
struct ieee80211_rx_status *rx_status,
bool *decrypt_error)
{
struct ath_hw *ah = common->ah;
struct ieee80211_hdr *hdr;
u8 ratecode;
__le16 fc;
struct ieee80211_sta *sta;
struct ath_node *an;
int last_rssi = ATH_RSSI_DUMMY_MARKER;
struct ath_common *common = ath9k_hw_common(sc->sc_ah);
hdr = (struct ieee80211_hdr *)skb->data;
fc = hdr->frame_control;
@ -115,7 +116,7 @@ static int ath_rx_prepare(struct ieee80211_hw *hw,
* discard the frame. Enable this if you want to see
* error frames in Monitor mode.
*/
if (sc->sc_ah->opmode != NL80211_IFTYPE_MONITOR)
if (ah->opmode != NL80211_IFTYPE_MONITOR)
goto rx_next;
} else if (rx_stats->rs_status != 0) {
if (rx_stats->rs_status & ATH9K_RXERR_CRC)
@ -141,7 +142,7 @@ static int ath_rx_prepare(struct ieee80211_hw *hw,
* decryption and MIC failures. For monitor mode,
* we also ignore the CRC error.
*/
if (sc->sc_ah->opmode == NL80211_IFTYPE_MONITOR) {
if (ah->opmode == NL80211_IFTYPE_MONITOR) {
if (rx_stats->rs_status &
~(ATH9K_RXERR_DECRYPT | ATH9K_RXERR_MIC |
ATH9K_RXERR_CRC))
@ -165,20 +166,20 @@ static int ath_rx_prepare(struct ieee80211_hw *hw,
rx_status->flag |= RX_FLAG_SHORT_GI;
rx_status->rate_idx = ratecode & 0x7f;
} else {
int i = 0, cur_band, n_rates;
struct ieee80211_supported_band *sband;
unsigned int i = 0;
enum ieee80211_band band;
cur_band = hw->conf.channel->band;
n_rates = sc->sbands[cur_band].n_bitrates;
band = hw->conf.channel->band;
sband = hw->wiphy->bands[band];
for (i = 0; i < n_rates; i++) {
if (sc->sbands[cur_band].bitrates[i].hw_value ==
ratecode) {
for (i = 0; i < sband->n_bitrates; i++) {
if (sband->bitrates[i].hw_value == rx_stats->rs_rate) {
rx_status->rate_idx = i;
break;
}
if (sc->sbands[cur_band].bitrates[i].hw_value_short ==
ratecode) {
if (sband->bitrates[i].hw_value_short ==
rx_stats->rs_rate) {
rx_status->rate_idx = i;
rx_status->flag |= RX_FLAG_SHORTPRE;
break;
@ -208,9 +209,9 @@ static int ath_rx_prepare(struct ieee80211_hw *hw,
/* Update Beacon RSSI, this is used by ANI. */
if (ieee80211_is_beacon(fc))
sc->sc_ah->stats.avgbrssi = rx_stats->rs_rssi;
ah->stats.avgbrssi = rx_stats->rs_rssi;
rx_status->mactime = ath9k_hw_extend_tsf(sc->sc_ah, rx_stats->rs_tstamp);
rx_status->mactime = ath9k_hw_extend_tsf(ah, rx_stats->rs_tstamp);
rx_status->band = hw->conf.channel->band;
rx_status->freq = hw->conf.channel->center_freq;
rx_status->noise = common->ani.noise_floor;
@ -754,8 +755,8 @@ int ath_rx_tasklet(struct ath_softc *sc, int flush)
if (sc->rx.bufsize < rx_stats->rs_datalen)
goto requeue;
if (!ath_rx_prepare(hw, skb, rx_stats,
&rx_status, &decrypt_error, sc))
if (!ath_rx_prepare(common, hw, skb, rx_stats,
&rx_status, &decrypt_error))
goto requeue;
/* Ensure we always have an skb to requeue once we are done