diff options
Diffstat (limited to 'libre/linux-libre/0004-mac80211-disable-BHs-preemption-in-ieee80211_tx_cont.patch')
-rw-r--r-- | libre/linux-libre/0004-mac80211-disable-BHs-preemption-in-ieee80211_tx_cont.patch | 46 |
1 files changed, 0 insertions, 46 deletions
diff --git a/libre/linux-libre/0004-mac80211-disable-BHs-preemption-in-ieee80211_tx_cont.patch b/libre/linux-libre/0004-mac80211-disable-BHs-preemption-in-ieee80211_tx_cont.patch deleted file mode 100644 index de3385e8d..000000000 --- a/libre/linux-libre/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 - |