diff options
| author | Helmut Schaa <helmut.schaa@googlemail.com> | 2011-09-29 13:42:25 +0200 |
|---|---|---|
| committer | John W. Linville <linville@tuxdriver.com> | 2011-10-03 21:19:17 +0200 |
| commit | 893d73f4a15bda966cb72f84897898eb235e134c (patch) | |
| tree | 001d5b58d5c45f3d0c12a5de0bd0eb4290dd2819 | |
| parent | Merge branch 'for-linville' of git://github.com/kvalo/ath6kl (diff) | |
| download | linux-893d73f4a15bda966cb72f84897898eb235e134c.tar.xz linux-893d73f4a15bda966cb72f84897898eb235e134c.zip | |
mac80211: Allow noack flag overwrite for injected frames
Allow injected unicast frames to be sent without having to wait
for an ACK.
Signed-off-by: Helmut Schaa <helmut.schaa@googlemail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
| -rw-r--r-- | include/net/ieee80211_radiotap.h | 1 | ||||
| -rw-r--r-- | net/mac80211/tx.c | 15 |
2 files changed, 14 insertions, 2 deletions
diff --git a/include/net/ieee80211_radiotap.h b/include/net/ieee80211_radiotap.h index b0be5fb9de19..7e2c4d483ad0 100644 --- a/include/net/ieee80211_radiotap.h +++ b/include/net/ieee80211_radiotap.h @@ -251,6 +251,7 @@ enum ieee80211_radiotap_type { * retries */ #define IEEE80211_RADIOTAP_F_TX_CTS 0x0002 /* used cts 'protection' */ #define IEEE80211_RADIOTAP_F_TX_RTS 0x0004 /* used rts/cts handshake */ +#define IEEE80211_RADIOTAP_F_TX_NOACK 0x0008 /* don't expect an ack */ /* For IEEE80211_RADIOTAP_MCS */ diff --git a/net/mac80211/tx.c b/net/mac80211/tx.c index ae5dd85f1e93..ad2ee4a90ec4 100644 --- a/net/mac80211/tx.c +++ b/net/mac80211/tx.c @@ -1054,6 +1054,7 @@ static bool __ieee80211_parse_tx_radiotap(struct ieee80211_tx_data *tx, struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb); int ret = ieee80211_radiotap_iterator_init(&iterator, rthdr, skb->len, NULL); + u16 txflags; info->flags |= IEEE80211_TX_INTFL_DONT_ENCRYPT; tx->flags &= ~IEEE80211_TX_FRAGMENTED; @@ -1102,6 +1103,13 @@ static bool __ieee80211_parse_tx_radiotap(struct ieee80211_tx_data *tx, tx->flags |= IEEE80211_TX_FRAGMENTED; break; + case IEEE80211_RADIOTAP_TX_FLAGS: + txflags = le16_to_cpu(get_unaligned((__le16*) + iterator.this_arg)); + if (txflags & IEEE80211_RADIOTAP_F_TX_NOACK) + info->flags |= IEEE80211_TX_CTL_NO_ACK; + break; + /* * Please update the file * Documentation/networking/mac80211-injection.txt @@ -1266,8 +1274,11 @@ ieee80211_tx_prepare(struct ieee80211_sub_if_data *sdata, tx->flags |= IEEE80211_TX_UNICAST; if (unlikely(local->wifi_wme_noack_test)) info->flags |= IEEE80211_TX_CTL_NO_ACK; - else - info->flags &= ~IEEE80211_TX_CTL_NO_ACK; + /* + * Flags are initialized to 0. Hence, no need to + * explicitly unset IEEE80211_TX_CTL_NO_ACK since + * it might already be set for injected frames. + */ } if (tx->flags & IEEE80211_TX_FRAGMENTED) { |