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wifi: mac80211: validate some driver features for MLO

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If MLO is enabled by the driver then validate a set of
capabilities that mac80211 will initially not support
in MLO. This might change if features are implemented.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
This commit is contained in:
Johannes Berg 2022-05-30 22:52:14 +02:00
parent ec7a04073d
commit 762623a6a4
1 changed files with 42 additions and 0 deletions
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42
net/mac80211/main.c
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@ -955,6 +955,48 @@ int ieee80211_register_hw(struct ieee80211_hw *hw)
(!local->ops->start_nan || !local->ops->stop_nan)))
return -EINVAL;
if (hw->wiphy->flags & WIPHY_FLAG_SUPPORTS_MLO) {
/*
* For drivers capable of doing MLO, assume modern driver
* or firmware facilities, so software doesn't have to do
* as much, e.g. monitoring beacons would be hard if we
* might not even know which link is active at which time.
*/
if (WARN_ON(!local->use_chanctx))
return -EINVAL;
if (WARN_ON(!local->ops->link_info_changed))
return -EINVAL;
if (WARN_ON(!ieee80211_hw_check(hw, HAS_RATE_CONTROL)))
return -EINVAL;
if (WARN_ON(!ieee80211_hw_check(hw, AMPDU_AGGREGATION)))
return -EINVAL;
if (WARN_ON(ieee80211_hw_check(hw, HOST_BROADCAST_PS_BUFFERING)))
return -EINVAL;
if (WARN_ON(ieee80211_hw_check(hw, SUPPORTS_PS) &&
!ieee80211_hw_check(hw, SUPPORTS_DYNAMIC_PS)))
return -EINVAL;
if (WARN_ON(!ieee80211_hw_check(hw, MFP_CAPABLE)))
return -EINVAL;
if (WARN_ON(!ieee80211_hw_check(hw, CONNECTION_MONITOR)))
return -EINVAL;
if (WARN_ON(ieee80211_hw_check(hw, NEED_DTIM_BEFORE_ASSOC)))
return -EINVAL;
if (WARN_ON(ieee80211_hw_check(hw, TIMING_BEACON_ONLY)))
return -EINVAL;
if (WARN_ON(!ieee80211_hw_check(hw, AP_LINK_PS)))
return -EINVAL;
}
#ifdef CONFIG_PM
if (hw->wiphy->wowlan && (!local->ops->suspend || !local->ops->resume))
return -EINVAL;