diff options
| author | Felix Fietkau <nbd@nbd.name> | 2021-11-11 00:22:01 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2021-11-25 11:48:47 +0300 |
| commit | 76025be187d2396efd7a1bbd45084154f4eea01a (patch) | |
| tree | 90216124ebad4d3b39e7cbecb6a8eb0d570f3698 /net/mac80211 | |
| parent | 60a3a889efe5f56f0ed90059b49d85a6ccfaa2df (diff) | |
| download | linux-76025be187d2396efd7a1bbd45084154f4eea01a.tar.xz | |
mac80211: drop check for DONT_REORDER in __ieee80211_select_queue
commit f6ab25d41b18f3d26883cb9c20875e1a85c4f05b upstream.
When __ieee80211_select_queue is called, skb->cb has not been cleared yet,
which means that info->control.flags can contain garbage.
In some cases this leads to IEEE80211_TX_CTRL_DONT_REORDER being set, causing
packets marked for other queues to randomly end up in BE instead.
This flag only needs to be checked in ieee80211_select_queue_80211, since
the radiotap parser is the only piece of code that sets it
Fixes: 66d06c84730c ("mac80211: adhere to Tx control flag that prevents frame reordering")
Cc: stable@vger.kernel.org
Signed-off-by: Felix Fietkau <nbd@nbd.name>
Link: https://lore.kernel.org/r/20211110212201.35452-1-nbd@nbd.name
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'net/mac80211')
| -rw-r--r-- | net/mac80211/wme.c | 3 |
1 files changed, 1 insertions, 2 deletions
diff --git a/net/mac80211/wme.c b/net/mac80211/wme.c index 9ea6004abe1b..62c6733e0792 100644 --- a/net/mac80211/wme.c +++ b/net/mac80211/wme.c @@ -143,7 +143,6 @@ u16 ieee80211_select_queue_80211(struct ieee80211_sub_if_data *sdata, u16 __ieee80211_select_queue(struct ieee80211_sub_if_data *sdata, struct sta_info *sta, struct sk_buff *skb) { - struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb); struct mac80211_qos_map *qos_map; bool qos; @@ -156,7 +155,7 @@ u16 __ieee80211_select_queue(struct ieee80211_sub_if_data *sdata, else qos = false; - if (!qos || (info->control.flags & IEEE80211_TX_CTRL_DONT_REORDER)) { + if (!qos) { skb->priority = 0; /* required for correct WPA/11i MIC */ return IEEE80211_AC_BE; } |