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-rw-r--r--include/uapi/linux/nl80211.h8
1 files changed, 8 insertions, 0 deletions
diff --git a/include/uapi/linux/nl80211.h b/include/uapi/linux/nl80211.h
index beee59c831a7..64135ab3a7ac 100644
--- a/include/uapi/linux/nl80211.h
+++ b/include/uapi/linux/nl80211.h
@@ -571,6 +571,14 @@
* set of BSSID,frequency parameters is used (i.e., either the enforcing
* %NL80211_ATTR_MAC,%NL80211_ATTR_WIPHY_FREQ or the less strict
* %NL80211_ATTR_MAC_HINT and %NL80211_ATTR_WIPHY_FREQ_HINT).
+ * Driver shall not modify the IEs specified through %NL80211_ATTR_IE if
+ * %NL80211_ATTR_MAC is included. However, if %NL80211_ATTR_MAC_HINT is
+ * included, these IEs through %NL80211_ATTR_IE are specified by the user
+ * space based on the best possible BSS selected. Thus, if the driver ends
+ * up selecting a different BSS, it can modify these IEs accordingly (e.g.
+ * userspace asks the driver to perform PMKSA caching with BSS1 and the
+ * driver ends up selecting BSS2 with different PMKSA cache entry; RSNIE
+ * has to get updated with the apt PMKID).
* %NL80211_ATTR_PREV_BSSID can be used to request a reassociation within
* the ESS in case the device is already associated and an association with
* a different BSS is desired.