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b1677a562c
* mac80211: bump to 5.8-rc2 changelog: dfe0bc8 mac80211: allow ACS restriction with fixed channel 727685c mac80211: rt2x00: define RF5592 in init_eeprom routine cfd2f3b mac80211: create channel list for fixed channel operation d1100c7 mac80211: Update to version 5.7.5-1 ed2015c mac80211: Update to version 5.8-rc2-1 a956c14 mac80211: util: don't warn on missing sband iftype data 8b3e170 hostapd: fix incorrect service name 68bf5a9 mac80211: don't kill wireless daemon on teardown 25e0ae6 mac80211: make cfg80211 testmode support optional (and disabled by default) b7727a8 mac80211: fix AQL issues 3d731fc mac80211: merge performance improvement patches * mt76: update to 2020-07-22 Signed-off-by: Felix Fietkau <nbd@nbd.name> * mac80211: allow VHT on 2.4GHz Allow VHT rate on 2.4GHz in order to use 256-QAM Signed-off-by: DENG Qingfang <dengqf6@mail2.sysu.edu.cn> * ath10k: allow VHT on 2.4GHz Signed-off-by: DENG Qingfang <dengqf6@mail2.sysu.edu.cn> * hostapd: add vendor_vht option hostapd has vendor_vht option to enable VHT (256-QAM) on 2.4GHz Add this option to hostapd.sh so users can enable it via uci Signed-off-by: DENG Qingfang <dengqf6@mail2.sysu.edu.cn> * ipq807x: Refresh kernel configuration Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de> * ipq807x: Add WCSS bus This is needed to build ath11k. Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de> * mac80211: Add ath11k This adds the Qualcomm 802.11ax wireless chipset support. Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de> Co-authored-by: Felix Fietkau <nbd@nbd.name> Co-authored-by: DENG Qingfang <dengqf6@mail2.sysu.edu.cn> Co-authored-by: Hauke Mehrtens <hauke@hauke-m.de>
50 lines
1.8 KiB
Diff
50 lines
1.8 KiB
Diff
From: =?UTF-8?q?Rafa=C5=82=20Mi=C5=82ecki?= <zajec5@gmail.com>
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Date: Thu, 9 Jul 2015 00:07:59 +0200
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Subject: [PATCH] brcmfmac: workaround bug with some inconsistent BSSes state
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MIME-Version: 1.0
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Content-Type: text/plain; charset=UTF-8
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Content-Transfer-Encoding: 8bit
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Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
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---
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--- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/cfg80211.c
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+++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/cfg80211.c
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@@ -712,8 +712,36 @@ static struct wireless_dev *brcmf_cfg802
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struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy);
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struct brcmf_pub *drvr = cfg->pub;
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struct wireless_dev *wdev;
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+ struct net_device *dev;
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int err;
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+ /*
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+ * There is a bug with in-firmware BSS management. When adding virtual
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+ * interface brcmfmac first tells firmware to create new BSS and then
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+ * it creates new struct net_device.
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+ *
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+ * If creating/registering netdev(ice) fails, BSS remains in some bugged
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+ * state. It conflicts with existing BSSes by overtaking their auth
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+ * requests.
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+ *
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+ * It results in one BSS (addresss X) sending beacons and another BSS
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+ * (address Y) replying to authentication requests. This makes interface
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+ * unusable as AP.
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+ *
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+ * To workaround this bug we may try to guess if register_netdev(ice)
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+ * will fail. The most obvious case is using interface name that already
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+ * exists. This is actually quite likely with brcmfmac & some user space
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+ * scripts as brcmfmac doesn't allow deleting virtual interfaces.
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+ * So this bug can be triggered even by something trivial like:
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+ * iw dev wlan0 delete
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+ * iw phy phy0 interface add wlan0 type __ap
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+ */
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+ dev = dev_get_by_name(&init_net, name);
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+ if (dev) {
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+ dev_put(dev);
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+ return ERR_PTR(-ENFILE);
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+ }
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+
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brcmf_dbg(TRACE, "enter: %s type %d\n", name, type);
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err = brcmf_vif_add_validate(wiphy_to_cfg(wiphy), type);
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if (err) {
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