- 20 Oct, 2021 28 commits
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Jakub Kicinski authored
Commit 406f42fa ("net-next: When a bond have a massive amount of VLANs...") introduced a rbtree for faster Ethernet address look up. To maintain netdev->dev_addr in this tree we need to make all the writes to it got through appropriate helpers. Signed-off-by:
Jakub Kicinski <kuba@kernel.org> Signed-off-by:
Kalle Valo <kvalo@codeaurora.org> Link: https://lore.kernel.org/r/20211018235021.1279697-14-kuba@kernel.org
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Jakub Kicinski authored
Commit 406f42fa ("net-next: When a bond have a massive amount of VLANs...") introduced a rbtree for faster Ethernet address look up. To maintain netdev->dev_addr in this tree we need to make all the writes to it got through appropriate helpers. Signed-off-by:
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Jakub Kicinski authored
Commit 406f42fa ("net-next: When a bond have a massive amount of VLANs...") introduced a rbtree for faster Ethernet address look up. To maintain netdev->dev_addr in this tree we need to make all the writes to it got through appropriate helpers. Signed-off-by:
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Jakub Kicinski authored
netdev->dev_addr will be come const soon, constify the argument to command send to avoid compiler warnings. Signed-off-by:
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Jakub Kicinski authored
Commit 406f42fa ("net-next: When a bond have a massive amount of VLANs...") introduced a rbtree for faster Ethernet address look up. To maintain netdev->dev_addr in this tree we need to make all the writes to it got through appropriate helpers. Use dev_addr_set() to match the existing logic. setup_card() is always passed netdev->dev_addr, so pass the netdev pointer instead and assign the address using a helper there. Signed-off-by:
Sebastian Andrzej Siewior <bigeasy@linutronix.de> Signed-off-by:
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Jakub Kicinski authored
netdev->dev_addr will become const soon. Make sure local variables maintain that qualifier. Signed-off-by:
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Jakub Kicinski authored
Commit 406f42fa ("net-next: When a bond have a massive amount of VLANs...") introduced a rbtree for faster Ethernet address look up. To maintain netdev->dev_addr in this tree we need to make all the writes to it got through appropriate helpers. Use a buffer on the stack. Note that atmel_get_mib() is a wrapper around atmel_copy_to_host(). For the to device direction we just need to make sure functions respect argument being cost. Signed-off-by:
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Jakub Kicinski authored
Commit 406f42fa ("net-next: When a bond have a massive amount of VLANs...") introduced a rbtree for faster Ethernet address look up. To maintain netdev->dev_addr in this tree we need to make all the writes to it got through appropriate helpers. Do the special encoding on the stack, then copy the address. Signed-off-by:
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Jakub Kicinski authored
Commit 406f42fa ("net-next: When a bond have a massive amount of VLANs...") introduced a rbtree for faster Ethernet address look up. To maintain netdev->dev_addr in this tree we need to make all the writes to it got through appropriate helpers. Do the special encoding on the stack, then copy the address. Signed-off-by:
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Jakub Kicinski authored
Convert all WiFi drivers from memcpy(... dev->addr_len) to eth_hw_addr_set(): @@ expression dev, np; @@ - memcpy(dev->dev_addr, np, dev->addr_len) + eth_hw_addr_set(dev, np) Manually checked the netdevs are allocated with alloc_etherdev(), so dev->addr_len must be equal to ETH_ALEN. Signed-off-by:
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Jakub Kicinski authored
Commit 406f42fa ("net-next: When a bond have a massive amount of VLANs...") introduced a rbtree for faster Ethernet address look up. To maintain netdev->dev_addr in this tree we need to make all the writes to it got through appropriate helpers. Convert wireless from ether_addr_copy() to eth_hw_addr_set(): @@ expression dev, np; @@ - ether_addr_copy(dev->dev_addr, np) + eth_hw_addr_set(dev, np) Signed-off-by:
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Jakub Kicinski authored
Convert all WiFi drivers from memcpy(... ETH_ADDR) to eth_hw_addr_set(): @@ expression dev, np; @@ - memcpy(dev->dev_addr, np, ETH_ALEN) + eth_hw_addr_set(dev, np) Signed-off-by:
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Johannes Berg authored
The integrated So devices covered by the iwl_so_long_latency_trans_cfg configuration should all have low-latency-xtal enabled, so do that. While at it, remove the TODO, I've checked the other values as well. Signed-off-by:
Johannes Berg <johannes.berg@intel.com> Fixes: 6f60fb03 ("iwlwifi: move SnJ and So rules to the new tables") Signed-off-by:
Luca Coelho <luciano.coelho@intel.com> Signed-off-by:
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Johannes Berg authored
If the data we get from EFI is not even long enough for the package struct we expect then ignore it entirely. Signed-off-by:
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Johannes Berg authored
We shouldn't kmemdup() more data than we have, that might cause the code to crash. Fix that by updating the length before the kmemdup. Signed-off-by:
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Yaara Baruch authored
JnP should not have the 160 MHz. Signed-off-by:
Yaara Baruch <yaara.baruch@intel.com> Signed-off-by:
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Johannes Berg authored
If resume fails for some reason, we need to set the PM state back to normal so we're able to send commands during firmware reset, rather than failing all of them because we're in D3. Signed-off-by:
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git://git.kernel.org/pub/scm/linux/kernel/git/kvalo/ath.gitKalle Valo authored
ath.git patches for v5.16. Major changes: ath9k * add option to reset the wifi chip via debugfs * convert Device Tree bindings to the json-schema * support Device Tree ieee80211-freq-limit property to limit channels
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Jonas Dreßler authored
When powersaving (so either wifi powersaving or deep sleep, depending on which state the firmware is in) is disabled, the way the firmware goes into host sleep is different: Usually the firmware implicitely enters host sleep on the next SLEEP event we get when we configured host sleep via HSCFG before. When powersaving is disabled though, there are no SLEEP events, the way we enter host sleep in that case is different: The firmware will send us a HS_ACT_REQ event and after that we "manually" make the firmware enter host sleep by sending it another HSCFG command with the action HS_ACTIVATE. Now waking up from host sleep appears to be different depending on whether powersaving is enabled again: When powersaving is enabled, the firmware implicitely leaves host sleep as soon as it wakes up and sends us an AWAKE event. When powersaving is disabled though, it apparently doesn't implicitely leave host sleep, but instead we need to send it a HSCFG command with the HS_CONFIGURE action and the HS_CFG_CANCEL condition. We didn't do that so far, which is why waking up from host sleep was broken when powersaving is disabled. So add some additional state to mwifiex_adapter where we keep track of whether host sleep was activated manually via HS_ACTIVATE, and if that was the case, deactivate it manually again via HS_CFG_CANCEL. Signed-off-by:
Jonas Dreßler <verdre@v0yd.nl> Signed-off-by:
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Jonas Dreßler authored
While looking at on-air packets using Wireshark, I noticed we're never setting the initiator bit when sending DELBA requests to the AP: While we set the bit on our del_ba_param_set bitmask, we forget to actually copy that bitmask over to the command struct, which means we never actually set the initiator bit. Fix that and copy the bitmask over to the host_cmd_ds_11n_delba command struct. Fixes: 5e6e3a92 ("wireless: mwifiex: initial commit for Marvell mwifiex driver") Signed-off-by:
Pali Rohár <pali@kernel.org> Signed-off-by:
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Jonas Dreßler authored
We're sending DELBA requests here, not ADDBA requests. Signed-off-by:
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Jonas Dreßler authored
Sometimes the KEY_MATERIAL command can fail with the 88W8897 firmware (when this happens exactly seems pretty random). This appears to prevent the access point from starting, so it seems like a good idea to log an error in that case. Signed-off-by:
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Jonas Dreßler authored
It's not an error if someone chooses to put their computer to sleep, not wanting it to wake up because the person next door has just discovered what a magic packet is. So change the loglevel of this annoying message from ERROR to INFO. Signed-off-by:
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Yang Li authored
Eliminate the following coccicheck warning: ./drivers/net/wireless/realtek/rtw89/pci.c:1348:2-3: Unneeded semicolon Reported-by:
Abaci Robot <abaci@linux.alibaba.com> Fixes: e3ec7017 ("rtw89: add Realtek 802.11ax driver") Signed-off-by:
Yang Li <yang.lee@linux.alibaba.com> Acked-by:
Ping-Ke Shih <pkshih@realtek.com> Signed-off-by:
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Yang Yingliang authored
Fix the return value check which testing the wrong variable in rtw89_cam_send_sec_key_cmd(). Reported-by:
Hulk Robot <hulkci@huawei.com> Fixes: e3ec7017 ("rtw89: add Realtek 802.11ax driver") Signed-off-by:
Yang Yingliang <yangyingliang@huawei.com> Acked-by:
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Zheyu Ma authored
When the driver fails to request the firmware, it calls its error handler. In the error handler, the driver detaches device from driver first before releasing the firmware, which can cause a use-after-free bug. Fix this by releasing firmware first. The following log reveals it: [ 9.007301 ] BUG: KASAN: use-after-free in mwl8k_fw_state_machine+0x320/0xba0 [ 9.010143 ] Workqueue: events request_firmware_work_func [ 9.010830 ] Call Trace: [ 9.010830 ] dump_stack_lvl+0xa8/0xd1 [ 9.010830 ] print_address_description+0x87/0x3b0 [ 9.010830 ] kasan_report+0x172/0x1c0 [ 9.010830 ] ? mutex_unlock+0xd/0x10 [ 9.010830 ] ? mwl8k_fw_state_machine+0x320/0xba0 [ 9.010830 ] ? mwl8k_fw_state_machine+0x320/0xba0 [ 9.010830 ] __asan_report_load8_noabort+0x14/0x20 [ 9.010830 ] mwl8k_fw_state_machine+0x320/0xba0 [ 9.010830 ] ? mwl8k_load_firmware+0x5f0/0x5f0 [ 9.010830 ] request_firmware_work_func+0x172/0x250 [ 9.010830 ] ? read_lock_is_recursive+0x20/0x20 [ 9.010830 ] ? process_one_work+0x7a1/0x1100 [ 9.010830 ] ? request_firmware_nowait+0x460/0x460 [ 9.010830 ] ? __this_cpu_preempt_check+0x13/0x20 [ 9.010830 ] process_one_work+0x9bb/0x1100 Signed-off-by:
Zheyu Ma <zheyuma97@gmail.com> Signed-off-by:
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Ziyang Xuan authored
When fail to init coex module, free 'common' and 'adapter' directly, but common->tx_thread which will access 'common' and 'adapter' is running at the same time. That will trigger the UAF bug. ================================================================== BUG: KASAN: use-after-free in rsi_tx_scheduler_thread+0x50f/0x520 [rsi_91x] Read of size 8 at addr ffff8880076dc000 by task Tx-Thread/124777 CPU: 0 PID: 124777 Comm: Tx-Thread Not tainted 5.15.0-rc5+ #19 Call Trace: dump_stack_lvl+0xe2/0x152 print_address_description.constprop.0+0x21/0x140 ? rsi_tx_scheduler_thread+0x50f/0x520 kasan_report.cold+0x7f/0x11b ? rsi_tx_scheduler_thread+0x50f/0x520 rsi_tx_scheduler_thread+0x50f/0x520 ... Freed by task 111873: kasan_save_stack+0x1b/0x40 kasan_set_track+0x1c/0x30 kasan_set_free_info+0x20/0x30 __kasan_slab_free+0x109/0x140 kfree+0x117/0x4c0 rsi_91x_init+0x741/0x8a0 [rsi_91x] rsi_probe+0x9f/0x1750 [rsi_usb] Stop thread before free 'common' and 'adapter' to fix it. Fixes: 2108df3c ("rsi: add coex support") Signed-off-by:
Ziyang Xuan <william.xuanziyang@huawei.com> Signed-off-by:
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Ryder Lee authored
Add more MTK folks to actively maintain the wireless chipsets across segments. The work is becoming increasingly complicated and various and we can provides hardware related perspectives to offload Felix's workload, especially for the 11ax and upcoming 11be devices Signed-off-by:
Ryder Lee <ryder.lee@mediatek.com> Acked-by:
Felix Fietkau <nbd@nbd.name> Signed-off-by:
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- 18 Oct, 2021 6 commits
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Qing Wang authored
coccicheck complains about the use of snprintf() in sysfs show functions. Fix the coccicheck warning: WARNING: use scnprintf or sprintf. Use sysfs_emit instead of scnprintf or sprintf makes more sense. Signed-off-by:
Qing Wang <wangqing@vivo.com> Signed-off-by:
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Colin Ian King authored
The function rtw89_mac_enable_bb_rf is a void return type, so there is no return error code to ret, so the following check for an error in ret is redundant dead code and can be removed. Addresses-Coverity: ("Logically dead code") Fixes: e3ec7017 ("rtw89: add Realtek 802.11ax driver") Signed-off-by:Colin Ian King <colin.king@canonical.com> Acked-by:
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Colin Ian King authored
There are two spelling mistakes in rtw89_debug messages. Fix them. Signed-off-by:
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Ping-Ke Shih authored
Add maintainer and email to MAINTAINERS file. Signed-off-by:
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Jonas Dreßler authored
It seems that the PCIe+USB firmware (latest version 15.68.19.p21) of the 88W8897 card sometimes ignores or misses when we try to wake it up by writing to the firmware status register. This leads to the firmware wakeup timeout expiring and the driver resetting the card because we assume the firmware has hung up or crashed. Turns out that the firmware actually didn't hang up, but simply "missed" our wakeup request and didn't send us an interrupt with an AWAKE event. Trying again to read the firmware status register after a short timeout usually makes the firmware wake up as expected, so add a small retry loop to mwifiex_pm_wakeup_card() that looks at the interrupt status to check whether the card woke up. The number of tries and timeout lengths for this were determined experimentally: The firmware usually takes about 500 us to wake up after we attempt to read the status register. In some cases where the firmware is very busy (for example while doing a bluetooth scan) it might even miss our requests for multiple milliseconds, which is why after 15 tries the waiting time gets increased to 10 ms. The maximum number of tries it took to wake the firmware when testing this was around 20, so a maximum number of 50 tries should give us plenty of safety margin. Here's a reproducer for those firmware wakeup failures I've found: 1) Make sure wifi powersaving is enabled (iw dev wlp1s0 set power_save on) 2) Connect to any wifi network (makes firmware go into wifi powersaving mode, not deep sleep) 3) Make sure bluetooth is turned off (to ensure the firmware actually enters powersave mode and doesn't keep the radio active doing bluetooth stuff) 4) To confirm that wifi powersaving is entered ping a device on the LAN, pings should be a few ms higher than without powersaving 5) Run "while true; do iwconfig; sleep 0.0001; done", this wakes and suspends the firmware extremely often 6) Wait until things explode, for me it consistently takes <5 minutes BugLink: https://bugzilla.kernel.org/show_bug.cgi?id=109681 Cc: stable@vger.kernel.org Signed-off-by:
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Jonas Dreßler authored
On the 88W8897 PCIe+USB card the firmware randomly crashes after setting the TX ring write pointer. The issue is present in the latest firmware version 15.68.19.p21 of the PCIe+USB card. Those firmware crashes can be worked around by reading any PCI register of the card after setting that register, so read the PCI_VENDOR_ID register here. The reason this works is probably because we keep the bus from entering an ASPM state for a bit longer, because that's what causes the cards firmware to crash. This fixes a bug where during RX/TX traffic and with ASPM L1 substates enabled (the specific substates where the issue happens appear to be platform dependent), the firmware crashes and eventually a command timeout appears in the logs. BugLink: https://bugzilla.kernel.org/show_bug.cgi?id=109681 Cc: stable@vger.kernel.org Signed-off-by:
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- 13 Oct, 2021 6 commits
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Christophe JAILLET authored
'destroy_workqueue()' already drains the queue before destroying it, so there is no need to flush it explicitly. Remove the redundant 'flush_workqueue()' calls. This was generated with coccinelle: @@ expression E; @@ - flush_workqueue(E); destroy_workqueue(E); Signed-off-by:
Christophe JAILLET <christophe.jaillet@wanadoo.fr> Signed-off-by:
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Colin Ian King authored
The variable ret is being initialized with a value that is never read, it is assigned later on with a different value. The initialization is redundant and can be removed. Addresses-Coverity: ("Unused value") Signed-off-by:Jakub Kicinski <kubakici@wp.pl> Signed-off-by:
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Colin Ian King authored
The variable version is being initialized with a value that is never read, it is being updated afterwards in both branches of an if statement. The assignment is redundant and can be removed. Addresses-Coverity: ("Unused value") Signed-off-by: -
Ping-Ke Shih authored
This driver named rtw89, which is the next generation of rtw88, supports Realtek 8852AE 802.11ax 2x2 chip whose new features are OFDMA, DBCC, Spatial reuse, TWT and BSS coloring; now some of them aren't implemented though. The chip architecture is entirely different from the chips supported by rtw88 like RTL8822CE 802.11ac chip. First of all, register address ranges are totally redefined, so it's impossible to reuse register definition. To communicate with firmware, new H2C/C2H format is proposed. In order to have better utilization, TX DMA flow is changed to two stages DMA. To provide rich RX status information, additional RX PPDU packets are added. Since there are so many differences mentioned above, we decide to propose a new driver. It has many authors, they are listed in alphabetic order: Chin-Yen Lee <timlee@realtek.com> Ping-Ke Shih <pkshih@realtek.com> Po Hao Huang <phhuang@realtek.com> Tzu-En Huang <tehuang@realtek.com> Vincent Fann <vincent_fann@realtek.com> Yan-Hsuan Chuang <tony0620emma@gmail.com> Zong-Zhe Yang <kevin_yang@realtek.com> Tested-by:
Aaron Ma <aaron.ma@canonical.com> Tested-by:
Brian Norris <briannorris@chromium.org> Signed-off-by:
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Sven Eckelmann authored
Most of the txpower for the ath10k firmware is stored as twicepower (0.5 dB steps). This isn't the case for max_antenna_gain - which is still expected by the firmware as dB. The firmware is converting it from dB to the internal (twicepower) representation when it calculates the limits of a channel. This can be seen in tpc_stats when configuring "12" as max_antenna_gain. Instead of the expected 12 (6 dB), the tpc_stats shows 24 (12 dB). Tested on QCA9888 and IPQ4019 with firmware 10.4-3.5.3-00057. Fixes: 02256930 ("ath10k: use proper tx power unit") Signed-off-by:
Sven Eckelmann <seckelmann@datto.com> Signed-off-by:
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Dan Carpenter authored
The devm_kmemdup() function doesn't return error pointers, it returns NULL on error. Fixes: eb3a97a6 ("ath9k: fetch calibration data via nvmem subsystem") Signed-off-by:
Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by:
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