From: Johannes Berg <johannes.berg@xxxxxxxxx> [ Upstream commit db8ebd06ccb87b7bea8e50f3d4ba5dc0142093b8 ] Use the appropriate bitfield helpers for encoding and decoding the capability field in the BA session action frames instead of open-coding the shifts/masks. Signed-off-by: Johannes Berg <johannes.berg@xxxxxxxxx> Signed-off-by: Luca Coelho <luciano.coelho@xxxxxxxxx> Link: https://lore.kernel.org/r/iwlwifi.20201206145305.0c46e5097cc0.I06e75706770c40b9ba1cabd1f8a78ab7a05c5b73@changeid Signed-off-by: Johannes Berg <johannes.berg@xxxxxxxxx> Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx> --- net/mac80211/agg-rx.c | 8 ++++---- net/mac80211/agg-tx.c | 12 ++++++------ 2 files changed, 10 insertions(+), 10 deletions(-) diff --git a/net/mac80211/agg-rx.c b/net/mac80211/agg-rx.c index 4d1c335e06e57..93285f9a2bbd5 100644 --- a/net/mac80211/agg-rx.c +++ b/net/mac80211/agg-rx.c @@ -250,10 +250,10 @@ static void ieee80211_send_addba_resp(struct sta_info *sta, u8 *da, u16 tid, mgmt->u.action.u.addba_resp.action_code = WLAN_ACTION_ADDBA_RESP; mgmt->u.action.u.addba_resp.dialog_token = dialog_token; - capab = (u16)(amsdu << 0); /* bit 0 A-MSDU support */ - capab |= (u16)(policy << 1); /* bit 1 aggregation policy */ - capab |= (u16)(tid << 2); /* bit 5:2 TID number */ - capab |= (u16)(buf_size << 6); /* bit 15:6 max size of aggregation */ + capab = u16_encode_bits(amsdu, IEEE80211_ADDBA_PARAM_AMSDU_MASK); + capab |= u16_encode_bits(policy, IEEE80211_ADDBA_PARAM_POLICY_MASK); + capab |= u16_encode_bits(tid, IEEE80211_ADDBA_PARAM_TID_MASK); + capab |= u16_encode_bits(buf_size, IEEE80211_ADDBA_PARAM_BUF_SIZE_MASK); mgmt->u.action.u.addba_resp.capab = cpu_to_le16(capab); mgmt->u.action.u.addba_resp.timeout = cpu_to_le16(timeout); diff --git a/net/mac80211/agg-tx.c b/net/mac80211/agg-tx.c index b11883d268759..ea6bc02c900bf 100644 --- a/net/mac80211/agg-tx.c +++ b/net/mac80211/agg-tx.c @@ -95,10 +95,10 @@ static void ieee80211_send_addba_request(struct ieee80211_sub_if_data *sdata, mgmt->u.action.u.addba_req.action_code = WLAN_ACTION_ADDBA_REQ; mgmt->u.action.u.addba_req.dialog_token = dialog_token; - capab = (u16)(1 << 0); /* bit 0 A-MSDU support */ - capab |= (u16)(1 << 1); /* bit 1 aggregation policy */ - capab |= (u16)(tid << 2); /* bit 5:2 TID number */ - capab |= (u16)(agg_size << 6); /* bit 15:6 max size of aggergation */ + capab = IEEE80211_ADDBA_PARAM_AMSDU_MASK; + capab |= IEEE80211_ADDBA_PARAM_POLICY_MASK; + capab |= u16_encode_bits(tid, IEEE80211_ADDBA_PARAM_TID_MASK); + capab |= u16_encode_bits(agg_size, IEEE80211_ADDBA_PARAM_BUF_SIZE_MASK); mgmt->u.action.u.addba_req.capab = cpu_to_le16(capab); @@ -921,8 +921,8 @@ void ieee80211_process_addba_resp(struct ieee80211_local *local, capab = le16_to_cpu(mgmt->u.action.u.addba_resp.capab); amsdu = capab & IEEE80211_ADDBA_PARAM_AMSDU_MASK; - tid = (capab & IEEE80211_ADDBA_PARAM_TID_MASK) >> 2; - buf_size = (capab & IEEE80211_ADDBA_PARAM_BUF_SIZE_MASK) >> 6; + tid = u16_get_bits(capab, IEEE80211_ADDBA_PARAM_TID_MASK); + buf_size = u16_get_bits(capab, IEEE80211_ADDBA_PARAM_BUF_SIZE_MASK); buf_size = min(buf_size, local->hw.max_tx_aggregation_subframes); txq = sta->sta.txq[tid]; -- 2.27.0
