Re: [PATCH 2/8] wifi: ath12k: support change_sta_links() mac80211 op

[Kalle Valo <kvalo@kernel.org>]

Kalle Valo <kvalo@kernel.org> writes:

> Baochen Qiang <quic_bqiang@quicinc.com> writes:
>
>> On 11/6/2024 10:26 PM, Kalle Valo wrote:
>>> From: Sriram R <quic_srirrama@quicinc.com>
>>> 
>>> Add ath12k_mac_op_change_sta_links() for adding and removing
>>> link station.
>>> 
>>> Tested-on: QCN9274 hw2.0 PCI WLAN.WBE.1.3.1-00173-QCAHKSWPL_SILICONZ-1
>>> Tested-on: WCN7850 hw2.0 PCI WLAN.HMT.1.0.c5-00481-QCAHMTSWPL_V1.0_V2.0_SILICONZ-3
>>> 
>>> Signed-off-by: Sriram R <quic_srirrama@quicinc.com>
>>> Signed-off-by: Harshitha Prem <quic_hprem@quicinc.com>
>>> Signed-off-by: Kalle Valo <quic_kvalo@quicinc.com>
>>> ---
>>>  drivers/net/wireless/ath/ath12k/mac.c | 97 ++++++++++++++++++++++++++-
>>>  1 file changed, 96 insertions(+), 1 deletion(-)
>>> 
>>> diff --git a/drivers/net/wireless/ath/ath12k/mac.c b/drivers/net/wireless/ath/ath12k/mac.c
>>> index 0ff886e4b3ed..c0cc4e51a4d1 100644
>>> --- a/drivers/net/wireless/ath/ath12k/mac.c
>>> +++ b/drivers/net/wireless/ath/ath12k/mac.c
>>> @@ -5572,6 +5572,101 @@ static void ath12k_mac_op_sta_rc_update(struct ieee80211_hw *hw,
>>>  	rcu_read_unlock();
>>>  }
>>>  
>>> +static struct ath12k_link_sta *
>>> +ath12k_mac_alloc_assign_link_sta(struct ath12k_hw *ah,
>>> +				 struct ath12k_sta *ahsta,
>>> +				 struct ath12k_vif *ahvif, u8 link_id)
>>> +{
>>> +	struct ath12k_link_sta *arsta;
>>> +	int ret;
>>> +
>>> +	lockdep_assert_wiphy(ah->hw->wiphy);
>>> +
>>> +	if (link_id >= IEEE80211_MLD_MAX_NUM_LINKS)
>>> +		return NULL;
>>> +
>>> +	arsta = wiphy_dereference(ah->hw->wiphy, ahsta->link[link_id]);
>>> +	if (arsta)
>>> +		return NULL;
>>> +
>>> +	arsta = kzalloc(sizeof(*arsta), GFP_KERNEL);
>>
>> kmalloc() is preferred as ath12k_mac_assign_link_sta() will do 'zero'?
>
> That's true. Jeff, are you able to change this in the pending branch?

Actually ignore that, I'll submit v2.

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