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ath9k: Remove a few redundant variables/macros

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Signed-off-by: Sujith <Sujith.Manoharan@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Sujith 2009-07-23 15:32:41 +05:30 committed by John W. Linville
parent f83da96564
commit 4ef7084173
2 changed files with 10 additions and 15 deletions
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1
drivers/net/wireless/ath/ath9k/ath9k.h
View File

@ -190,7 +190,6 @@ void ath_descdma_cleanup(struct ath_softc *sc, struct ath_descdma *dd,
#define ATH_AGGR_MIN_QDEPTH 2
#define ATH_AMPDU_SUBFRAME_DEFAULT 32
#define ATH_AMPDU_LIMIT_MAX (64 * 1024 - 1)
#define ATH_AMPDU_LIMIT_DEFAULT ATH_AMPDU_LIMIT_MAX
#define IEEE80211_SEQ_SEQ_SHIFT 4
#define IEEE80211_SEQ_MAX 4096

24
drivers/net/wireless/ath/ath9k/xmit.c
View File

@ -455,7 +455,7 @@ static u32 ath_lookup_rate(struct ath_softc *sc, struct ath_buf *bf,
struct ieee80211_tx_rate *rates;
struct ath_tx_info_priv *tx_info_priv;
u32 max_4ms_framelen, frmlen;
u16 aggr_limit, legacy = 0, maxampdu;
u16 aggr_limit, legacy = 0;
int i;
skb = bf->bf_mpdu;
@ -490,16 +490,15 @@ static u32 ath_lookup_rate(struct ath_softc *sc, struct ath_buf *bf,
if (tx_info->flags & IEEE80211_TX_CTL_RATE_CTRL_PROBE || legacy)
return 0;
aggr_limit = min(max_4ms_framelen, (u32)ATH_AMPDU_LIMIT_DEFAULT);
aggr_limit = min(max_4ms_framelen, (u32)ATH_AMPDU_LIMIT_MAX);
/*
* h/w can accept aggregates upto 16 bit lengths (65535).
* The IE, however can hold upto 65536, which shows up here
* as zero. Ignore 65536 since we are constrained by hw.
*/
maxampdu = tid->an->maxampdu;
if (maxampdu)
aggr_limit = min(aggr_limit, maxampdu);
if (tid->an->maxampdu)
aggr_limit = min(aggr_limit, tid->an->maxampdu);
return aggr_limit;
}
@ -507,7 +506,6 @@ static u32 ath_lookup_rate(struct ath_softc *sc, struct ath_buf *bf,
/*
* Returns the number of delimiters to be added to
* meet the minimum required mpdudensity.
* caller should make sure that the rate is HT rate .
*/
static int ath_compute_num_delims(struct ath_softc *sc, struct ath_atx_tid *tid,
struct ath_buf *bf, u16 frmlen)
@ -515,7 +513,7 @@ static int ath_compute_num_delims(struct ath_softc *sc, struct ath_atx_tid *tid,
const struct ath_rate_table *rt = sc->cur_rate_table;
struct sk_buff *skb = bf->bf_mpdu;
struct ieee80211_tx_info *tx_info = IEEE80211_SKB_CB(skb);
u32 nsymbits, nsymbols, mpdudensity;
u32 nsymbits, nsymbols;
u16 minlen;
u8 rc, flags, rix;
int width, half_gi, ndelim, mindelim;
@ -537,14 +535,12 @@ static int ath_compute_num_delims(struct ath_softc *sc, struct ath_atx_tid *tid,
* on highest rate in rate series (i.e. first rate) to determine
* required minimum length for subframe. Take into account
* whether high rate is 20 or 40Mhz and half or full GI.
*/
mpdudensity = tid->an->mpdudensity;
/*
*
* If there is no mpdu density restriction, no further calculation
* is needed.
*/
if (mpdudensity == 0)
if (tid->an->mpdudensity == 0)
return ndelim;
rix = tx_info->control.rates[0].idx;
@ -554,9 +550,9 @@ static int ath_compute_num_delims(struct ath_softc *sc, struct ath_atx_tid *tid,
half_gi = (flags & IEEE80211_TX_RC_SHORT_GI) ? 1 : 0;
if (half_gi)
nsymbols = NUM_SYMBOLS_PER_USEC_HALFGI(mpdudensity);
nsymbols = NUM_SYMBOLS_PER_USEC_HALFGI(tid->an->mpdudensity);
else
nsymbols = NUM_SYMBOLS_PER_USEC(mpdudensity);
nsymbols = NUM_SYMBOLS_PER_USEC(tid->an->mpdudensity);
if (nsymbols == 0)
nsymbols = 1;