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| author | John W. Linville <linville@tuxdriver.com> | 2011-04-27 15:04:28 -0400 |
|---|---|---|
| committer | John W. Linville <linville@tuxdriver.com> | 2011-04-28 14:53:23 -0400 |
| commit | 49adc5ceb2b95e517baf625e0c8e06e91073009b (patch) | |
| tree | fd8ae16948ba48fd2b8baaf32aac6328579e75be /drivers/net/wireless | |
| parent | af335a6cbc3dfcba64ad31561c0da563d1c43a2d (diff) | |
| download | blackbird-op-linux-49adc5ceb2b95e517baf625e0c8e06e91073009b.tar.gz blackbird-op-linux-49adc5ceb2b95e517baf625e0c8e06e91073009b.zip | |
mwl8k: replace rateinfo bitfields with mask and shift macros
AFAICT, this driver is claiming that 24 bits of rate info fit into a
16-bit field in the Tx descriptor. Anyway, the use of bitfields is
frowned-upon for a variety of well-documented reasons...
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'drivers/net/wireless')
| -rw-r--r-- | drivers/net/wireless/mwl8k.c | 25 |
1 files changed, 5 insertions, 20 deletions
diff --git a/drivers/net/wireless/mwl8k.c b/drivers/net/wireless/mwl8k.c index b8f2b12c8c7c..8a1b26255f03 100644 --- a/drivers/net/wireless/mwl8k.c +++ b/drivers/net/wireless/mwl8k.c @@ -1562,24 +1562,11 @@ static int mwl8k_tid_queue_mapping(u8 tid) /* The firmware will fill in the rate information * for each packet that gets queued in the hardware - * in this structure + * and these macros will interpret that info. */ -struct rateinfo { - __le16 format:1; - __le16 short_gi:1; - __le16 band_width:1; - __le16 rate_id_mcs:6; - __le16 adv_coding:2; - __le16 antenna:2; - __le16 act_sub_chan:2; - __le16 preamble_type:1; - __le16 power_id:4; - __le16 antenna2:1; - __le16 reserved:1; - __le16 tx_bf_frame:1; - __le16 green_field:1; -} __packed; +#define RI_FORMAT(a) (a & 0x0001) +#define RI_RATE_ID_MCS(a) ((a & 0x01f8) >> 3) static int mwl8k_txq_reclaim(struct ieee80211_hw *hw, int index, int limit, int force) @@ -1600,7 +1587,6 @@ mwl8k_txq_reclaim(struct ieee80211_hw *hw, int index, int limit, int force) struct ieee80211_sta *sta; struct mwl8k_sta *sta_info = NULL; u16 rate_info; - struct rateinfo *rate; struct ieee80211_hdr *wh; tx = txq->head; @@ -1643,14 +1629,13 @@ mwl8k_txq_reclaim(struct ieee80211_hw *hw, int index, int limit, int force) sta_info = MWL8K_STA(sta); BUG_ON(sta_info == NULL); rate_info = le16_to_cpu(tx_desc->rate_info); - rate = (struct rateinfo *)&rate_info; /* If rate is < 6.5 Mpbs for an ht station * do not form an ampdu. If the station is a * legacy station (format = 0), do not form an * ampdu */ - if (rate->rate_id_mcs < 1 || - rate->format == 0) { + if (RI_RATE_ID_MCS(rate_info) < 1 || + RI_FORMAT(rate_info) == 0) { sta_info->is_ampdu_allowed = false; } else { sta_info->is_ampdu_allowed = true; |
