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wifi: iwlwifi: mei: fix tx DHCP packet for devices with new Tx API

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[ Upstream commit bcd68b3dbe ]

Devices with new Tx API have the IV introduced by the HW and it is not
present in the skb at all. Hence we don't need to tell
iwl_mvm_mei_tx_copy_to_csme to jump over 8 bytes to get to the ethernet
header.

Fixes: 2da4366f9e ("iwlwifi: mei: add the driver to allow cooperation with CSME")
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Gregory Greenman <gregory.greenman@intel.com>
Link: https://lore.kernel.org/r/20221030191011.12dc42133502.Idd744ffeeb84b880eb497963ee02563cbb959a42@changeid
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Emmanuel Grumbach
2022-10-30 19:17:43 +02:00
committed by Greg Kroah-Hartman
parent 9829f3a5ae
commit a29e442ee1
1 changed files with 7 additions and 1 deletions
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8
drivers/net/wireless/intel/iwlwifi/mvm/tx.c
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@@ -1171,9 +1171,15 @@ static int iwl_mvm_tx_mpdu(struct iwl_mvm *mvm, struct sk_buff *skb,
/* From now on, we cannot access info->control */
iwl_mvm_skb_prepare_status(skb, dev_cmd);
/*
* The IV is introduced by the HW for new tx api, and it is not present
* in the skb, hence, don't tell iwl_mvm_mei_tx_copy_to_csme about the
* IV for those devices.
*/
if (ieee80211_is_data(fc))
iwl_mvm_mei_tx_copy_to_csme(mvm, skb,
info->control.hw_key ?
info->control.hw_key &&
!iwl_mvm_has_new_tx_api(mvm) ?
info->control.hw_key->iv_len : 0);
if (iwl_trans_tx(mvm->trans, skb, dev_cmd, txq_id))