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authorBen Caradoc-Davies <ben@transient.nz>2018-03-19 02:57:44 +0300
committerJohannes Berg <johannes.berg@intel.com>2018-03-21 12:56:18 +0300
commit7c181f4fcdc62e5dc7a87fd33387d322262c3b52 (patch)
tree7a1ee622eb9b7e64a58b009108dcf76608ecf67a /include
parent5f2fb802eee1df0810b47ea251942fe3fd36589a (diff)
downloadlinux-7c181f4fcdc62e5dc7a87fd33387d322262c3b52.tar.xz
mac80211: add ieee80211_hw flag for QoS NDP support
Commit 7b6ddeaf27ec ("mac80211: use QoS NDP for AP probing") added an argument qos_ok to ieee80211_nullfunc_get to support QoS NDP. Despite the claim in the commit log "Change all the drivers to *not* allow QoS NDP for now, even though it looks like most of them should be OK with that", this commit enables QoS NDP in response to beacons (see change to mlme.c:ieee80211_send_nullfunc), causing ath9k_htc to lose IP connectivity. See: https://patchwork.kernel.org/patch/10241109/ https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=891060 Introduce a hardware flag to allow such buggy drivers to override the correct default behaviour of mac80211 of sending QoS NDP packets. Signed-off-by: Ben Caradoc-Davies <ben@transient.nz> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Diffstat (limited to 'include')
-rw-r--r--include/net/mac80211.h4
1 files changed, 4 insertions, 0 deletions
diff --git a/include/net/mac80211.h b/include/net/mac80211.h
index c96511fa9198..2b581bd93812 100644
--- a/include/net/mac80211.h
+++ b/include/net/mac80211.h
@@ -2063,6 +2063,9 @@ struct ieee80211_txq {
* @IEEE80211_HW_SUPPORTS_TDLS_BUFFER_STA: Hardware supports buffer STA on
* TDLS links.
*
+ * @IEEE80211_HW_DOESNT_SUPPORT_QOS_NDP: The driver (or firmware) doesn't
+ * support QoS NDP for AP probing - that's most likely a driver bug.
+ *
* @NUM_IEEE80211_HW_FLAGS: number of hardware flags, used for sizing arrays
*/
enum ieee80211_hw_flags {
@@ -2106,6 +2109,7 @@ enum ieee80211_hw_flags {
IEEE80211_HW_REPORTS_LOW_ACK,
IEEE80211_HW_SUPPORTS_TX_FRAG,
IEEE80211_HW_SUPPORTS_TDLS_BUFFER_STA,
+ IEEE80211_HW_DOESNT_SUPPORT_QOS_NDP,
/* keep last, obviously */
NUM_IEEE80211_HW_FLAGS