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authorFelix Fietkau <nbd@openwrt.org>2015-07-18 19:10:38 +0000
committerFelix Fietkau <nbd@openwrt.org>2015-07-18 19:10:38 +0000
commit621dd13590c0a43ee67ef3c23fa0ae2b9dd152da (patch)
tree53a1caabc3fb2854b83bc3d4b1a1d773494f7048
parent363f32c8ac1da6906b8e50f167fc3ec95b1946e0 (diff)
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cfg80211: fix a locking issue (#20098)
Signed-off-by: Felix Fietkau <nbd@openwrt.org> SVN-Revision: 46413
-rw-r--r--package/kernel/mac80211/patches/308-cfg80211-use-RTNL-locked-reg_can_beacon-for-IR-relax.patch216
-rw-r--r--package/kernel/mac80211/patches/522-mac80211_configure_antenna_gain.patch2
-rw-r--r--package/kernel/mac80211/patches/862-brcmfmac-workaround-bug-with-some-inconsistent-BSSes.patch2
-rw-r--r--package/kernel/mac80211/patches/863-brcmfmac-set-wiphy-s-addresses-to-provide-valid-MACs.patch4
-rw-r--r--package/kernel/mac80211/patches/921-ath10k_init_devices_synchronously.patch2
5 files changed, 221 insertions, 5 deletions
diff --git a/package/kernel/mac80211/patches/308-cfg80211-use-RTNL-locked-reg_can_beacon-for-IR-relax.patch b/package/kernel/mac80211/patches/308-cfg80211-use-RTNL-locked-reg_can_beacon-for-IR-relax.patch
new file mode 100644
index 0000000000..d2a1cdc418
--- /dev/null
+++ b/package/kernel/mac80211/patches/308-cfg80211-use-RTNL-locked-reg_can_beacon-for-IR-relax.patch
@@ -0,0 +1,216 @@
+From: Arik Nemtsov <arik@wizery.com>
+Date: Wed, 8 Jul 2015 15:41:44 +0300
+Subject: [PATCH] cfg80211: use RTNL locked reg_can_beacon for IR-relaxation
+
+The RTNL is required to check for IR-relaxation conditions that allow
+more channels to beacon. Export an RTNL locked version of reg_can_beacon
+and use it where possible in AP/STA interface type flows, where
+IR-relaxation may be applicable.
+
+Fixes: 06f207fc5418 ("cfg80211: change GO_CONCURRENT to IR_CONCURRENT for STA")
+Signed-off-by: Arik Nemtsov <arikx.nemtsov@intel.com>
+Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
+---
+
+--- a/include/net/cfg80211.h
++++ b/include/net/cfg80211.h
+@@ -4871,6 +4871,23 @@ bool cfg80211_reg_can_beacon(struct wiph
+ struct cfg80211_chan_def *chandef,
+ enum nl80211_iftype iftype);
+
++/**
++ * cfg80211_reg_can_beacon_relax - check if beaconing is allowed with relaxation
++ * @wiphy: the wiphy
++ * @chandef: the channel definition
++ * @iftype: interface type
++ *
++ * Return: %true if there is no secondary channel or the secondary channel(s)
++ * can be used for beaconing (i.e. is not a radar channel etc.). This version
++ * also checks if IR-relaxation conditions apply, to allow beaconing under
++ * more permissive conditions.
++ *
++ * Requires the RTNL to be held.
++ */
++bool cfg80211_reg_can_beacon_relax(struct wiphy *wiphy,
++ struct cfg80211_chan_def *chandef,
++ enum nl80211_iftype iftype);
++
+ /*
+ * cfg80211_ch_switch_notify - update wdev channel and notify userspace
+ * @dev: the device which switched channels
+--- a/net/mac80211/tdls.c
++++ b/net/mac80211/tdls.c
+@@ -69,6 +69,7 @@ ieee80211_tdls_add_subband(struct ieee80
+ struct ieee80211_channel *ch;
+ struct cfg80211_chan_def chandef;
+ int i, subband_start;
++ struct wiphy *wiphy = sdata->local->hw.wiphy;
+
+ for (i = start; i <= end; i += spacing) {
+ if (!ch_cnt)
+@@ -79,9 +80,8 @@ ieee80211_tdls_add_subband(struct ieee80
+ /* we will be active on the channel */
+ cfg80211_chandef_create(&chandef, ch,
+ NL80211_CHAN_NO_HT);
+- if (cfg80211_reg_can_beacon(sdata->local->hw.wiphy,
+- &chandef,
+- sdata->wdev.iftype)) {
++ if (cfg80211_reg_can_beacon_relax(wiphy, &chandef,
++ sdata->wdev.iftype)) {
+ ch_cnt++;
+ /*
+ * check if the next channel is also part of
+--- a/net/wireless/chan.c
++++ b/net/wireless/chan.c
+@@ -797,23 +797,18 @@ static bool cfg80211_ir_permissive_chan(
+ return false;
+ }
+
+-bool cfg80211_reg_can_beacon(struct wiphy *wiphy,
+- struct cfg80211_chan_def *chandef,
+- enum nl80211_iftype iftype)
++static bool _cfg80211_reg_can_beacon(struct wiphy *wiphy,
++ struct cfg80211_chan_def *chandef,
++ enum nl80211_iftype iftype,
++ bool check_no_ir)
+ {
+ bool res;
+ u32 prohibited_flags = IEEE80211_CHAN_DISABLED |
+ IEEE80211_CHAN_RADAR;
+
+- trace_cfg80211_reg_can_beacon(wiphy, chandef, iftype);
++ trace_cfg80211_reg_can_beacon(wiphy, chandef, iftype, check_no_ir);
+
+- /*
+- * Under certain conditions suggested by some regulatory bodies a
+- * GO/STA can IR on channels marked with IEEE80211_NO_IR. Set this flag
+- * only if such relaxations are not enabled and the conditions are not
+- * met.
+- */
+- if (!cfg80211_ir_permissive_chan(wiphy, iftype, chandef->chan))
++ if (check_no_ir)
+ prohibited_flags |= IEEE80211_CHAN_NO_IR;
+
+ if (cfg80211_chandef_dfs_required(wiphy, chandef, iftype) > 0 &&
+@@ -827,8 +822,36 @@ bool cfg80211_reg_can_beacon(struct wiph
+ trace_cfg80211_return_bool(res);
+ return res;
+ }
++
++bool cfg80211_reg_can_beacon(struct wiphy *wiphy,
++ struct cfg80211_chan_def *chandef,
++ enum nl80211_iftype iftype)
++{
++ return _cfg80211_reg_can_beacon(wiphy, chandef, iftype, true);
++}
+ EXPORT_SYMBOL(cfg80211_reg_can_beacon);
+
++bool cfg80211_reg_can_beacon_relax(struct wiphy *wiphy,
++ struct cfg80211_chan_def *chandef,
++ enum nl80211_iftype iftype)
++{
++ bool check_no_ir;
++
++ ASSERT_RTNL();
++
++ /*
++ * Under certain conditions suggested by some regulatory bodies a
++ * GO/STA can IR on channels marked with IEEE80211_NO_IR. Set this flag
++ * only if such relaxations are not enabled and the conditions are not
++ * met.
++ */
++ check_no_ir = !cfg80211_ir_permissive_chan(wiphy, iftype,
++ chandef->chan);
++
++ return _cfg80211_reg_can_beacon(wiphy, chandef, iftype, check_no_ir);
++}
++EXPORT_SYMBOL(cfg80211_reg_can_beacon_relax);
++
+ int cfg80211_set_monitor_channel(struct cfg80211_registered_device *rdev,
+ struct cfg80211_chan_def *chandef)
+ {
+--- a/net/wireless/nl80211.c
++++ b/net/wireless/nl80211.c
+@@ -2007,7 +2007,8 @@ static int __nl80211_set_channel(struct
+ switch (iftype) {
+ case NL80211_IFTYPE_AP:
+ case NL80211_IFTYPE_P2P_GO:
+- if (!cfg80211_reg_can_beacon(&rdev->wiphy, &chandef, iftype)) {
++ if (!cfg80211_reg_can_beacon_relax(&rdev->wiphy, &chandef,
++ iftype)) {
+ result = -EINVAL;
+ break;
+ }
+@@ -3408,8 +3409,8 @@ static int nl80211_start_ap(struct sk_bu
+ } else if (!nl80211_get_ap_channel(rdev, &params))
+ return -EINVAL;
+
+- if (!cfg80211_reg_can_beacon(&rdev->wiphy, &params.chandef,
+- wdev->iftype))
++ if (!cfg80211_reg_can_beacon_relax(&rdev->wiphy, &params.chandef,
++ wdev->iftype))
+ return -EINVAL;
+
+ if (info->attrs[NL80211_ATTR_ACL_POLICY]) {
+@@ -6500,8 +6501,8 @@ skip_beacons:
+ if (err)
+ return err;
+
+- if (!cfg80211_reg_can_beacon(&rdev->wiphy, &params.chandef,
+- wdev->iftype))
++ if (!cfg80211_reg_can_beacon_relax(&rdev->wiphy, &params.chandef,
++ wdev->iftype))
+ return -EINVAL;
+
+ err = cfg80211_chandef_dfs_required(wdev->wiphy,
+@@ -10188,7 +10189,8 @@ static int nl80211_tdls_channel_switch(s
+ return -EINVAL;
+
+ /* we will be active on the TDLS link */
+- if (!cfg80211_reg_can_beacon(&rdev->wiphy, &chandef, wdev->iftype))
++ if (!cfg80211_reg_can_beacon_relax(&rdev->wiphy, &chandef,
++ wdev->iftype))
+ return -EINVAL;
+
+ /* don't allow switching to DFS channels */
+--- a/net/wireless/reg.c
++++ b/net/wireless/reg.c
+@@ -1589,7 +1589,7 @@ static bool reg_wdev_chan_valid(struct w
+ case NL80211_IFTYPE_AP:
+ case NL80211_IFTYPE_P2P_GO:
+ case NL80211_IFTYPE_ADHOC:
+- return cfg80211_reg_can_beacon(wiphy, &chandef, iftype);
++ return cfg80211_reg_can_beacon_relax(wiphy, &chandef, iftype);
+ case NL80211_IFTYPE_STATION:
+ case NL80211_IFTYPE_P2P_CLIENT:
+ return cfg80211_chandef_usable(wiphy, &chandef,
+--- a/net/wireless/trace.h
++++ b/net/wireless/trace.h
+@@ -2358,20 +2358,23 @@ TRACE_EVENT(cfg80211_cqm_rssi_notify,
+
+ TRACE_EVENT(cfg80211_reg_can_beacon,
+ TP_PROTO(struct wiphy *wiphy, struct cfg80211_chan_def *chandef,
+- enum nl80211_iftype iftype),
+- TP_ARGS(wiphy, chandef, iftype),
++ enum nl80211_iftype iftype, bool check_no_ir),
++ TP_ARGS(wiphy, chandef, iftype, check_no_ir),
+ TP_STRUCT__entry(
+ WIPHY_ENTRY
+ CHAN_DEF_ENTRY
+ __field(enum nl80211_iftype, iftype)
++ __field(bool, check_no_ir)
+ ),
+ TP_fast_assign(
+ WIPHY_ASSIGN;
+ CHAN_DEF_ASSIGN(chandef);
+ __entry->iftype = iftype;
++ __entry->check_no_ir = check_no_ir;
+ ),
+- TP_printk(WIPHY_PR_FMT ", " CHAN_DEF_PR_FMT ", iftype=%d",
+- WIPHY_PR_ARG, CHAN_DEF_PR_ARG, __entry->iftype)
++ TP_printk(WIPHY_PR_FMT ", " CHAN_DEF_PR_FMT ", iftype=%d check_no_ir=%s",
++ WIPHY_PR_ARG, CHAN_DEF_PR_ARG, __entry->iftype,
++ BOOL_TO_STR(__entry->check_no_ir))
+ );
+
+ TRACE_EVENT(cfg80211_chandef_dfs_required,
diff --git a/package/kernel/mac80211/patches/522-mac80211_configure_antenna_gain.patch b/package/kernel/mac80211/patches/522-mac80211_configure_antenna_gain.patch
index 309b50a39a..829c572d27 100644
--- a/package/kernel/mac80211/patches/522-mac80211_configure_antenna_gain.patch
+++ b/package/kernel/mac80211/patches/522-mac80211_configure_antenna_gain.patch
@@ -137,7 +137,7 @@
};
/* policy for the key attributes */
-@@ -2206,6 +2207,20 @@ static int nl80211_set_wiphy(struct sk_b
+@@ -2207,6 +2208,20 @@ static int nl80211_set_wiphy(struct sk_b
if (result)
return result;
}
diff --git a/package/kernel/mac80211/patches/862-brcmfmac-workaround-bug-with-some-inconsistent-BSSes.patch b/package/kernel/mac80211/patches/862-brcmfmac-workaround-bug-with-some-inconsistent-BSSes.patch
index 5d806343d9..49b223d724 100644
--- a/package/kernel/mac80211/patches/862-brcmfmac-workaround-bug-with-some-inconsistent-BSSes.patch
+++ b/package/kernel/mac80211/patches/862-brcmfmac-workaround-bug-with-some-inconsistent-BSSes.patch
@@ -10,7 +10,7 @@ Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
--- a/drivers/net/wireless/brcm80211/brcmfmac/cfg80211.c
+++ b/drivers/net/wireless/brcm80211/brcmfmac/cfg80211.c
-@@ -662,8 +662,36 @@ static struct wireless_dev *brcmf_cfg80211_add_iface(struct wiphy *wiphy,
+@@ -662,8 +662,36 @@ static struct wireless_dev *brcmf_cfg802
u32 *flags,
struct vif_params *params)
{
diff --git a/package/kernel/mac80211/patches/863-brcmfmac-set-wiphy-s-addresses-to-provide-valid-MACs.patch b/package/kernel/mac80211/patches/863-brcmfmac-set-wiphy-s-addresses-to-provide-valid-MACs.patch
index e8771af68c..32989eb69d 100644
--- a/package/kernel/mac80211/patches/863-brcmfmac-set-wiphy-s-addresses-to-provide-valid-MACs.patch
+++ b/package/kernel/mac80211/patches/863-brcmfmac-set-wiphy-s-addresses-to-provide-valid-MACs.patch
@@ -20,7 +20,7 @@ Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
--- a/drivers/net/wireless/brcm80211/brcmfmac/cfg80211.c
+++ b/drivers/net/wireless/brcm80211/brcmfmac/cfg80211.c
-@@ -5813,6 +5813,7 @@ static void brcmf_wiphy_wowl_params(struct wiphy *wiphy)
+@@ -5813,6 +5813,7 @@ static void brcmf_wiphy_wowl_params(stru
static int brcmf_setup_wiphy(struct wiphy *wiphy, struct brcmf_if *ifp)
{
@@ -28,7 +28,7 @@ Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
struct ieee80211_supported_band *band;
__le32 bandlist[3];
u32 n_bands;
-@@ -5826,6 +5827,19 @@ static int brcmf_setup_wiphy(struct wiphy *wiphy, struct brcmf_if *ifp)
+@@ -5826,6 +5827,19 @@ static int brcmf_setup_wiphy(struct wiph
if (err)
return err;
diff --git a/package/kernel/mac80211/patches/921-ath10k_init_devices_synchronously.patch b/package/kernel/mac80211/patches/921-ath10k_init_devices_synchronously.patch
index a6586666fc..43b2448ff2 100644
--- a/package/kernel/mac80211/patches/921-ath10k_init_devices_synchronously.patch
+++ b/package/kernel/mac80211/patches/921-ath10k_init_devices_synchronously.patch
@@ -14,7 +14,7 @@ Signed-off-by: Sven Eckelmann <sven@open-mesh.com>
--- a/drivers/net/wireless/ath/ath10k/core.c
+++ b/drivers/net/wireless/ath/ath10k/core.c
-@@ -1422,6 +1422,16 @@ int ath10k_core_register(struct ath10k *
+@@ -1417,6 +1417,16 @@ int ath10k_core_register(struct ath10k *
ar->chip_id = chip_id;
queue_work(ar->workqueue, &ar->register_work);