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Diffstat (limited to '0004-mac80211-disable-BHs-preemption-in-ieee80211_tx_cont.patch')
-rw-r--r--0004-mac80211-disable-BHs-preemption-in-ieee80211_tx_cont.patch46
1 files changed, 0 insertions, 46 deletions
diff --git a/0004-mac80211-disable-BHs-preemption-in-ieee80211_tx_cont.patch b/0004-mac80211-disable-BHs-preemption-in-ieee80211_tx_cont.patch
deleted file mode 100644
index de3385e8d51..00000000000
--- a/0004-mac80211-disable-BHs-preemption-in-ieee80211_tx_cont.patch
+++ /dev/null
@@ -1,46 +0,0 @@
-From 32a72bee7a275f47c235fdb36249703c892ce8d8 Mon Sep 17 00:00:00 2001
-Message-Id: <32a72bee7a275f47c235fdb36249703c892ce8d8.1531335939.git.jan.steffens@gmail.com>
-In-Reply-To: <a2d2476ffec7d988b1a5396586869570e0d6f9d8.1531335939.git.jan.steffens@gmail.com>
-References: <a2d2476ffec7d988b1a5396586869570e0d6f9d8.1531335939.git.jan.steffens@gmail.com>
-From: Denis Kenzior <denkenz@gmail.com>
-Date: Tue, 19 Jun 2018 10:39:50 -0500
-Subject: [PATCH 4/4] mac80211: disable BHs/preemption in
- ieee80211_tx_control_port()
-
-On pre-emption enabled kernels the following print was being seen due to
-missing local_bh_disable/local_bh_enable calls. mac80211 assumes that
-pre-emption is disabled in the data path.
-
- BUG: using smp_processor_id() in preemptible [00000000] code: iwd/517
- caller is __ieee80211_subif_start_xmit+0x144/0x210 [mac80211]
- [...]
- Call Trace:
- dump_stack+0x5c/0x80
- check_preemption_disabled.cold.0+0x46/0x51
- __ieee80211_subif_start_xmit+0x144/0x210 [mac80211]
-
-Fixes: 911806491425 ("mac80211: Add support for tx_control_port")
-Signed-off-by: Denis Kenzior <denkenz@gmail.com>
-[commit message rewrite, fixes tag]
-Signed-off-by: Johannes Berg <johannes.berg@intel.com>
----
- net/mac80211/tx.c | 2 ++
- 1 file changed, 2 insertions(+)
-
-diff --git a/net/mac80211/tx.c b/net/mac80211/tx.c
-index 05a265cd573d..7404a5114597 100644
---- a/net/mac80211/tx.c
-+++ b/net/mac80211/tx.c
-@@ -4800,7 +4800,9 @@ int ieee80211_tx_control_port(struct wiphy *wiphy, struct net_device *dev,
- skb_reset_network_header(skb);
- skb_reset_mac_header(skb);
-
-+ local_bh_disable();
- __ieee80211_subif_start_xmit(skb, skb->dev, flags);
-+ local_bh_enable();
-
- return 0;
- }
---
-2.18.0
-