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mac80211: fix tx queue allocation for active monitor interfaces

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Fixes a crash with drivers like ath9k

Signed-off-by: Felix Fietkau <nbd@nbd.name>
This commit is contained in:
Felix Fietkau
2018-09-22 15:18:46 +02:00
parent a6beca1f56
commit 7decdf923a
1 changed files with 26 additions and 0 deletions
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26
package/kernel/mac80211/patches/394-mac80211-allocate-TXQs-for-active-monitor-interfaces.patch Normal file
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@@ -0,0 +1,26 @@
From: Felix Fietkau <nbd@nbd.name>
Date: Sat, 22 Sep 2018 15:05:59 +0200
Subject: [PATCH] mac80211: allocate TXQs for active monitor interfaces
Monitor mode interfaces with the active flag are passed down to the driver.
Drivers using TXQ expect that all interfaces have allocated TXQs before
they get added.
Fixes: 79af1f866193d ("mac80211: avoid allocating TXQs that won't be used")
Cc: stable@vger.kernel.org
Reported-by: Catrinel Catrinescu <cc@80211.de>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
---
--- a/net/mac80211/iface.c
+++ b/net/mac80211/iface.c
@@ -1816,7 +1816,8 @@ int ieee80211_if_add(struct ieee80211_lo
if (local->ops->wake_tx_queue &&
type != NL80211_IFTYPE_AP_VLAN &&
- type != NL80211_IFTYPE_MONITOR)
+ (type != NL80211_IFTYPE_MONITOR ||
+ (params->flags & MONITOR_FLAG_ACTIVE)))
txq_size += sizeof(struct txq_info) +
local->hw.txq_data_size;