diff options
| author | Thomas Huehn <thomas@net.t-labs.tu-berlin.de> | 2012-07-02 19:46:16 +0200 |
|---|---|---|
| committer | Johannes Berg <johannes.berg@intel.com> | 2012-07-03 13:48:37 +0200 |
| commit | e3e1a0bcb3f192fe2f95f86a74bd4e7967341e74 (patch) | |
| tree | ed07b2c0a4bd814263bc1b85183ed0d1040ba274 /include | |
| parent | mac80211: remove tx_frags driver callback (diff) | |
| download | linux-e3e1a0bcb3f192fe2f95f86a74bd4e7967341e74.tar.xz linux-e3e1a0bcb3f192fe2f95f86a74bd4e7967341e74.zip | |
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 'include')
| -rw-r--r-- | include/net/mac80211.h | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/include/net/mac80211.h b/include/net/mac80211.h index dc2a97af95e7..3f1b58cf9c8c 100644 --- a/include/net/mac80211.h +++ b/include/net/mac80211.h @@ -475,7 +475,7 @@ enum mac80211_rate_control_flags { #define IEEE80211_TX_INFO_RATE_DRIVER_DATA_SIZE 24 /* maximum number of rate stages */ -#define IEEE80211_TX_MAX_RATES 5 +#define IEEE80211_TX_MAX_RATES 4 /** * struct ieee80211_tx_rate - rate selection/status @@ -563,11 +563,11 @@ struct ieee80211_tx_info { } control; struct { struct ieee80211_tx_rate rates[IEEE80211_TX_MAX_RATES]; - u8 ampdu_ack_len; int ack_signal; + u8 ampdu_ack_len; u8 ampdu_len; u8 antenna; - /* 14 bytes free */ + /* 21 bytes free */ } status; struct { struct ieee80211_tx_rate driver_rates[ @@ -634,7 +634,7 @@ ieee80211_tx_info_clear_status(struct ieee80211_tx_info *info) info->status.rates[i].count = 0; BUILD_BUG_ON( - offsetof(struct ieee80211_tx_info, status.ampdu_ack_len) != 23); + offsetof(struct ieee80211_tx_info, status.ack_signal) != 20); memset(&info->status.ampdu_ack_len, 0, sizeof(struct ieee80211_tx_info) - offsetof(struct ieee80211_tx_info, status.ampdu_ack_len)); |