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    Subject[PATCH 5.19 050/207] wifi: mt76: fix reading current per-tid starting sequence number for aggregation
    Date
    From: Felix Fietkau <nbd@nbd.name>

    commit c3a510e2b53785df31d882a773c4c0780b4c825f upstream.

    The code was accidentally shifting register values down by tid % 32 instead of
    (tid * field_size) % 32.

    Cc: stable@vger.kernel.org
    Fixes: a28bef561a5c ("mt76: mt7615: re-enable offloading of sequence number assignment")
    Signed-off-by: Felix Fietkau <nbd@nbd.name>
    Signed-off-by: Kalle Valo <kvalo@kernel.org>
    Link: https://lore.kernel.org/r/20220826182329.18155-1-nbd@nbd.name
    Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
    ---
    drivers/net/wireless/mediatek/mt76/mt7615/mac.c | 2 +-
    1 file changed, 1 insertion(+), 1 deletion(-)

    --- a/drivers/net/wireless/mediatek/mt76/mt7615/mac.c
    +++ b/drivers/net/wireless/mediatek/mt76/mt7615/mac.c
    @@ -1138,7 +1138,7 @@ u32 mt7615_mac_get_sta_tid_sn(struct mt7
    offset %= 32;

    val = mt76_rr(dev, addr);
    - val >>= (tid % 32);
    + val >>= offset;

    if (offset > 20) {
    addr += 4;

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