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| author | Felix Fietkau <nbd@openwrt.org> | 2013-04-16 13:38:42 +0200 |
|---|---|---|
| committer | Johannes Berg <johannes.berg@intel.com> | 2013-04-16 23:42:29 +0200 |
| commit | 2ffbe6d333664a089f17b13aa79eefe38f794bb7 (patch) | |
| tree | 29927d762aff0f9d8a8eea57784fb0067fb58ca7 /net/mac80211/tx.c | |
| parent | dad6330d034a24a22008ee28b8ec447cbb0961c9 (diff) | |
| download | linux-2ffbe6d333664a089f17b13aa79eefe38f794bb7.tar.gz linux-2ffbe6d333664a089f17b13aa79eefe38f794bb7.tar.bz2 linux-2ffbe6d333664a089f17b13aa79eefe38f794bb7.zip | |
mac80211: fix and optimize MCS mask handling
Currently the code always copies the configured MCS mask (even if it is
set to default), but only uses it if legacy rates were also masked out.
Fix this by adding a flag that tracks whether the configured MCS mask is
set to default or not.
Optimize the code further by storing a pointer to the configured rate
mask in txrc instead of using memcpy.
Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Diffstat (limited to 'net/mac80211/tx.c')
| -rw-r--r-- | net/mac80211/tx.c | 10 |
1 files changed, 5 insertions, 5 deletions
diff --git a/net/mac80211/tx.c b/net/mac80211/tx.c index bb82c873f774..15c1b286e280 100644 --- a/net/mac80211/tx.c +++ b/net/mac80211/tx.c @@ -642,9 +642,11 @@ ieee80211_tx_h_rate_ctrl(struct ieee80211_tx_data *tx) txrc.max_rate_idx = -1; else txrc.max_rate_idx = fls(txrc.rate_idx_mask) - 1; - memcpy(txrc.rate_idx_mcs_mask, - tx->sdata->rc_rateidx_mcs_mask[info->band], - sizeof(txrc.rate_idx_mcs_mask)); + + if (tx->sdata->rc_has_mcs_mask[info->band]) + txrc.rate_idx_mcs_mask = + tx->sdata->rc_rateidx_mcs_mask[info->band]; + txrc.bss = (tx->sdata->vif.type == NL80211_IFTYPE_AP || tx->sdata->vif.type == NL80211_IFTYPE_MESH_POINT || tx->sdata->vif.type == NL80211_IFTYPE_ADHOC); @@ -2508,8 +2510,6 @@ struct sk_buff *ieee80211_beacon_get_tim(struct ieee80211_hw *hw, txrc.max_rate_idx = -1; else txrc.max_rate_idx = fls(txrc.rate_idx_mask) - 1; - memcpy(txrc.rate_idx_mcs_mask, sdata->rc_rateidx_mcs_mask[band], - sizeof(txrc.rate_idx_mcs_mask)); txrc.bss = true; rate_control_get_rate(sdata, NULL, &txrc); |