From: Lorenzo Bianconi lorenzo@kernel.org
[ Upstream commit 3d9aa54355d863e5412a7e08180f50a8f1827b7f ]
Fix possible unaligned pointer in mt7915_mac_add_twt_setup routine.
Reported-by: kernel test robot lkp@intel.com Fixes: 3782b69d03e71 ("mt76: mt7915: introduce mt7915_mac_add_twt_setup routine") Signed-off-by: Lorenzo Bianconi lorenzo@kernel.org Signed-off-by: Felix Fietkau nbd@nbd.name Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/net/wireless/mediatek/mt76/mt7915/mac.c | 10 ++++++---- 1 file changed, 6 insertions(+), 4 deletions(-)
diff --git a/drivers/net/wireless/mediatek/mt76/mt7915/mac.c b/drivers/net/wireless/mediatek/mt76/mt7915/mac.c index 4ddcd3afa428..49aa5c056063 100644 --- a/drivers/net/wireless/mediatek/mt76/mt7915/mac.c +++ b/drivers/net/wireless/mediatek/mt76/mt7915/mac.c @@ -2071,8 +2071,9 @@ void mt7915_mac_add_twt_setup(struct ieee80211_hw *hw, }
flowid = ffs(~msta->twt.flowid_mask) - 1; - le16p_replace_bits(&twt_agrt->req_type, flowid, - IEEE80211_TWT_REQTYPE_FLOWID); + twt_agrt->req_type &= ~cpu_to_le16(IEEE80211_TWT_REQTYPE_FLOWID); + twt_agrt->req_type |= le16_encode_bits(flowid, + IEEE80211_TWT_REQTYPE_FLOWID);
table_id = ffs(~dev->twt.table_mask) - 1; exp = FIELD_GET(IEEE80211_TWT_REQTYPE_WAKE_INT_EXP, req_type); @@ -2122,8 +2123,9 @@ void mt7915_mac_add_twt_setup(struct ieee80211_hw *hw, unlock: mutex_unlock(&dev->mt76.mutex); out: - le16p_replace_bits(&twt_agrt->req_type, setup_cmd, - IEEE80211_TWT_REQTYPE_SETUP_CMD); + twt_agrt->req_type &= ~cpu_to_le16(IEEE80211_TWT_REQTYPE_SETUP_CMD); + twt_agrt->req_type |= + le16_encode_bits(setup_cmd, IEEE80211_TWT_REQTYPE_SETUP_CMD); twt->control = (twt->control & IEEE80211_TWT_CONTROL_WAKE_DUR_UNIT) | (twt->control & IEEE80211_TWT_CONTROL_RX_DISABLED); }