Commit d0b69609 authored by Johannes Berg's avatar Johannes Berg Committed by John W. Linville

mac80211: sequence number micro-optimisation

There's no need to mask the variable with 0xFFF0
since we ever only use it as a u16 and the lowest
four bits can't ever be non-zero. The compiler
cannot infer the latter, and therefore has to emit
code to do the masking.
Signed-off-by: default avatarJohannes Berg <johannes@sipsolutions.net>
Signed-off-by: default avatarJohn W. Linville <linville@tuxdriver.com>
parent feff1f2f
...@@ -700,7 +700,6 @@ ieee80211_tx_h_sequence(struct ieee80211_tx_data *tx) ...@@ -700,7 +700,6 @@ ieee80211_tx_h_sequence(struct ieee80211_tx_data *tx)
/* for pure STA mode without beacons, we can do it */ /* for pure STA mode without beacons, we can do it */
hdr->seq_ctrl = cpu_to_le16(tx->sdata->sequence_number); hdr->seq_ctrl = cpu_to_le16(tx->sdata->sequence_number);
tx->sdata->sequence_number += 0x10; tx->sdata->sequence_number += 0x10;
tx->sdata->sequence_number &= IEEE80211_SCTL_SEQ;
return TX_CONTINUE; return TX_CONTINUE;
} }
......
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