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mac80211: reduce IEEE80211_TX_MAX_RATES

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IEEE80211_TX_MAX_RATES can be reduced from 5 to 4 as there
is no current hardware supporting a rate chain with 5 multi
rate stages (mrr), so 4 mrr stages are sufficient.

The memory that is freed within the ieee80211_tx_info struct
will be used in the upcoming Transmission Power Control (TPC)
implementation.

Suggested-by: Felix Fietkau <nbd@openwrt.org>
Signed-off-by: Thomas Huehn <thomas@net.t-labs.tu-berlin.de>
[reword commit message]
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
This commit is contained in:
Thomas Huehn
2012-07-02 19:46:16 +02:00
committed by Johannes Berg
parent cb831b537d
commit e3e1a0bcb3
4 changed files with 11 additions and 12 deletions
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6
drivers/net/wireless/p54/txrx.c
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@@ -422,11 +422,11 @@ static void p54_rx_frame_sent(struct p54_common *priv, struct sk_buff *skb)
* Clear manually, ieee80211_tx_info_clear_status would
* clear the counts too and we need them.
*/
memset(&info->status.ampdu_ack_len, 0,
memset(&info->status.ack_signal, 0,
sizeof(struct ieee80211_tx_info) -
offsetof(struct ieee80211_tx_info, status.ampdu_ack_len));
offsetof(struct ieee80211_tx_info, status.ack_signal));
BUILD_BUG_ON(offsetof(struct ieee80211_tx_info,
status.ampdu_ack_len) != 23);
status.ack_signal) != 20);
if (entry_hdr->flags & cpu_to_le16(P54_HDR_FLAG_DATA_ALIGN))
pad = entry_data->align[0];