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-rw-r--r--package/kernel/mac80211/patches/321-Revert-mac80211-allow-using-AP_LINK_PS-with-mac80211.patch28
1 files changed, 28 insertions, 0 deletions
diff --git a/package/kernel/mac80211/patches/321-Revert-mac80211-allow-using-AP_LINK_PS-with-mac80211.patch b/package/kernel/mac80211/patches/321-Revert-mac80211-allow-using-AP_LINK_PS-with-mac80211.patch
new file mode 100644
index 0000000000..ace20e706b
--- /dev/null
+++ b/package/kernel/mac80211/patches/321-Revert-mac80211-allow-using-AP_LINK_PS-with-mac80211.patch
@@ -0,0 +1,28 @@
+From: Felix Fietkau <nbd@nbd.name>
+Date: Thu, 3 Nov 2016 12:10:34 +0100
+Subject: [PATCH] Revert "mac80211: allow using AP_LINK_PS with
+ mac80211-generated TIM IE"
+
+This reverts commit c68df2e7be0c1238ea3c281fd744a204ef3b15a0.
+
+__sta_info_recalc_tim turns into a no-op if local->ops->set_tim is not
+set. This prevents the beacon TIM bit from being set for all drivers
+that do not implement this op (almost all of them), thus thoroughly
+essential AP mode powersave functionality.
+
+Cc: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
+Fixes: c68df2e7be0c ("mac80211: allow using AP_LINK_PS with mac80211-generated TIM IE")
+Signed-off-by: Felix Fietkau <nbd@nbd.name>
+---
+
+--- a/net/mac80211/sta_info.c
++++ b/net/mac80211/sta_info.c
+@@ -688,7 +688,7 @@ static void __sta_info_recalc_tim(struct
+ }
+
+ /* No need to do anything if the driver does all */
+- if (!local->ops->set_tim)
++ if (ieee80211_hw_check(&local->hw, AP_LINK_PS))
+ return;
+
+ if (sta->dead)