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authorAlexander Wetzel <alexander@wetzel-home.de>2019-04-24 20:32:46 +0300
committerJohannes Berg <johannes.berg@intel.com>2019-04-26 14:02:11 +0300
commit387bc002250b31cf8012b736e482c9f65cbf7dd5 (patch)
treef01554bb4fc22e7b042db87eee6570da3bc01aec
parentcfe7007a9b4cea9c4a0f7d4192c776c62f31869e (diff)
downloadlinux-387bc002250b31cf8012b736e482c9f65cbf7dd5.tar.xz
mac80211: Set CAN_REPLACE_PTK0 for SW crypto only drivers
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>
-rw-r--r--net/mac80211/main.c7
1 files changed, 7 insertions, 0 deletions
diff --git a/net/mac80211/main.c b/net/mac80211/main.c
index e56650a9838e..2b608044ae23 100644
--- a/net/mac80211/main.c
+++ b/net/mac80211/main.c
@@ -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