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iwlwifi: mvm: fix A-MPDU reference assignment

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The current code assigns the reference, and then goes to increment
it if the toggle bit has changed. That way, we get

Toggle  0  0  0  0  1  1  1  1
ID      1  1  1  1  1  2  2  2

Fix that by assigning the post-toggle ID to get

Toggle  0  0  0  0  1  1  1  1
ID      1  1  1  1  2  2  2  2

Reported-by: Danny Alexander <[email protected]>
Signed-off-by: Johannes Berg <[email protected]>
Fixes: fbe4112791 ("iwlwifi: mvm: update mpdu metadata API")
Signed-off-by: Luca Coelho <[email protected]>
This commit is contained in:
Johannes Berg authored and Luca Coelho committed 2019-01-29 16:10:30 +02:00
1 parent 698478c492
commit 1f7698abed
1 file changed
+1 -1
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drivers/net/wireless/intel/iwlwifi/mvm/rxmq.c
+1 -1
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@@ -1438,12 +1438,12 @@ void iwl_mvm_rx_mpdu_mq(struct iwl_mvm *mvm, struct napi_struct *napi,
bool toggle_bit = phy_info & IWL_RX_MPDU_PHY_AMPDU_TOGGLE;
rx_status->flag |= RX_FLAG_AMPDU_DETAILS;
rx_status->ampdu_reference = mvm->ampdu_ref;
/* toggle is switched whenever new aggregation starts */
if (toggle_bit != mvm->ampdu_toggle) {
mvm->ampdu_ref++;
mvm->ampdu_toggle = toggle_bit;
}
rx_status->ampdu_reference = mvm->ampdu_ref;
}
rcu_read_lock();