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authorThomas Huehn <thomas@net.t-labs.tu-berlin.de>2012-07-02 19:46:16 +0200
committerJohannes Berg <johannes.berg@intel.com>2012-07-03 13:48:37 +0200
commite3e1a0bcb3f192fe2f95f86a74bd4e7967341e74 (patch)
treeed07b2c0a4bd814263bc1b85183ed0d1040ba274 /drivers
parentcb831b537d50d21f6afb5dffbde4cf6523627461 (diff)
downloadlinux-e3e1a0bcb3f192fe2f95f86a74bd4e7967341e74.tar.bz2
mac80211: reduce IEEE80211_TX_MAX_RATES
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>
Diffstat (limited to 'drivers')
-rw-r--r--drivers/net/wireless/ath/carl9170/tx.c6
-rw-r--r--drivers/net/wireless/p54/txrx.c6
2 files changed, 6 insertions, 6 deletions
diff --git a/drivers/net/wireless/ath/carl9170/tx.c b/drivers/net/wireless/ath/carl9170/tx.c
index aed305177af6..ede0b572cebc 100644
--- a/drivers/net/wireless/ath/carl9170/tx.c
+++ b/drivers/net/wireless/ath/carl9170/tx.c
@@ -277,11 +277,11 @@ static void carl9170_tx_release(struct kref *ref)
return;
BUILD_BUG_ON(
- offsetof(struct ieee80211_tx_info, status.ampdu_ack_len) != 23);
+ offsetof(struct ieee80211_tx_info, status.ack_signal) != 20);
- memset(&txinfo->status.ampdu_ack_len, 0,
+ memset(&txinfo->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));
if (atomic_read(&ar->tx_total_queued))
ar->tx_schedule = true;
diff --git a/drivers/net/wireless/p54/txrx.c b/drivers/net/wireless/p54/txrx.c
index 82a1cac920bd..f38786e02623 100644
--- a/drivers/net/wireless/p54/txrx.c
+++ b/drivers/net/wireless/p54/txrx.c
@@ -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];