Patch "Revert "mac80211: allow disable power save in mesh"" has been added to the 3.12-stable tree

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



This is a note to let you know that I've just added the patch titled

    Revert "mac80211: allow disable power save in mesh"

to the 3.12-stable tree which can be found at:
    http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary

The filename of the patch is:
     revert-mac80211-allow-disable-power-save-in-mesh.patch
and it can be found in the queue-3.12 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.


>From 2d3db210860f1df099a35b1dd54cca35454e0361 Mon Sep 17 00:00:00 2001
From: Bob Copeland <me@xxxxxxxxxxxxxxx>
Date: Tue, 29 Oct 2013 18:11:59 -0400
Subject: Revert "mac80211: allow disable power save in mesh"

From: Bob Copeland <me@xxxxxxxxxxxxxxx>

commit 2d3db210860f1df099a35b1dd54cca35454e0361 upstream.

This reverts commit ee1f668136b2fb6640ee2d54c2a525ea41f98211.

The aformentioned commit added a check to allow
'iw wlan0 set power_save off' to work for mesh interfaces.

However, this is problematic because it also allows
'iw wlan0 set power_save on', which will crash in short order
because all of the subsequent code manipulates sdata->u.mgd.

The power-saving states for mesh interfaces can be manipulated
through the mesh config, e.g:
'iw wlan0 set mesh_param mesh_power_save=active' (which,
despite the name, actualy disables power saving since the
setting refers to the type of sleep the interface undergoes).

Fixes: ee1f668136b2 ("mac80211: allow disable power save in mesh")
Signed-off-by: Bob Copeland <me@xxxxxxxxxxxxxxx>
Signed-off-by: Johannes Berg <johannes.berg@xxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>

---
 net/mac80211/cfg.c |    3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

--- a/net/mac80211/cfg.c
+++ b/net/mac80211/cfg.c
@@ -2386,8 +2386,7 @@ static int ieee80211_set_power_mgmt(stru
 	struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 	struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
 
-	if (sdata->vif.type != NL80211_IFTYPE_STATION &&
-	    sdata->vif.type != NL80211_IFTYPE_MESH_POINT)
+	if (sdata->vif.type != NL80211_IFTYPE_STATION)
 		return -EOPNOTSUPP;
 
 	if (!(local->hw.flags & IEEE80211_HW_SUPPORTS_PS))


Patches currently in stable-queue which might be from me@xxxxxxxxxxxxxxx are

queue-3.12/revert-mac80211-allow-disable-power-save-in-mesh.patch
--
To unsubscribe from this list: send the line "unsubscribe stable" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html




[Index of Archives]     [Linux Kernel]     [Kernel Development Newbies]     [Linux USB Devel]     [Video for Linux]     [Linux Audio Users]     [Yosemite Hiking]     [Linux Kernel]     [Linux SCSI]