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mac80211: Set CAN_REPLACE_PTK0 for SW crypto only drivers

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Mac80211 SW crypto handles replacing PTK keys correctly.

Don't trigger needless warnings or workarounds when the driver can only
use the known good SW crypto provided by mac80211.

Signed-off-by: Alexander Wetzel <alexander@wetzel-home.de>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
This commit is contained in:
Alexander Wetzel 2019-04-24 19:32:46 +02:00 committed by Johannes Berg
parent cfe7007a9b
commit 387bc00225
1 changed files with 7 additions and 0 deletions
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7
net/mac80211/main.c
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@ -1060,6 +1060,13 @@ int ieee80211_register_hw(struct ieee80211_hw *hw)
wiphy_ext_feature_set(local->hw.wiphy,
NL80211_EXT_FEATURE_EXT_KEY_ID);
/* Mac80211 and therefore all cards only using SW crypto are able to
* handle PTK rekeys correctly
*/
if (!local->ops->set_key)
wiphy_ext_feature_set(local->hw.wiphy,
NL80211_EXT_FEATURE_CAN_REPLACE_PTK0);
/*
* Calculate scan IE length -- we need this to alloc
* memory and to subtract from the driver limit. It