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path: root/drivers/net/wireless/mediatek/mt76
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8 dayswifi: mt76: mt792x: Limit the concurrent STA and SoftAP to operate on the ↵Leon Yen
same channel Due to the lack of NoA(Notice of Absence) mechanism in SoftAP mode, it is inappropriate to allow concurrent SoftAP and STA to operate on the different channels. This patch restricts the concurrent SoftAP and STA to be setup on the same channel only. Signed-off-by: Leon Yen <leon.yen@mediatek.com> Signed-off-by: Ming Yen Hsieh <mingyen.hsieh@mediatek.com> Link: https://patch.msgid.link/20250625073720.1385210-1-mingyen.hsieh@mediatek.com Signed-off-by: Felix Fietkau <nbd@nbd.name>
8 dayswifi: mt76: mt7925: Fix null-ptr-deref in mt7925_thermal_init()Henry Martin
devm_kasprintf() returns NULL on error. Currently, mt7925_thermal_init() does not check for this case, which results in a NULL pointer dereference. Add NULL check after devm_kasprintf() to prevent this issue. Fixes: 396e41a74a88 ("wifi: mt76: mt7925: support temperature sensor") Signed-off-by: Henry Martin <bsdhenryma@tencent.com> Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com> Link: https://patch.msgid.link/20250625124901.1839832-1-bsdhenryma@tencent.com Signed-off-by: Felix Fietkau <nbd@nbd.name>
8 dayswifi: mt76: fix queue assignment for deauth packetsFelix Fietkau
When running in AP mode and deauthenticating a client that's in powersave mode, the disassoc/deauth packet can get stuck in a tx queue along with other buffered frames. This can fill up hardware queues with frames that are only released after the WTBL slot is reused for another client. Fix this by moving deauth packets to the ALTX queue. Reported-by: Chad Monroe <chad.monroe@adtran.com> Link: https://patch.msgid.link/20250707154702.1726-2-nbd@nbd.name Signed-off-by: Felix Fietkau <nbd@nbd.name>
8 dayswifi: mt76: add a wrapper for wcid access with validationFelix Fietkau
Several places use rcu_dereference to get a wcid entry without validating if the index exceeds the array boundary. Fix this by using a helper function, which handles validation. Link: https://patch.msgid.link/20250707154702.1726-1-nbd@nbd.name Signed-off-by: Felix Fietkau <nbd@nbd.name>
8 dayswifi: mt76: mt7921: prevent decap offload config before STA initializationDeren Wu
The decap offload configuration should only be applied after the STA has been successfully initialized. Attempting to configure it earlier can lead to corruption of the MAC configuration in the chip's hardware state. Add an early check for `msta->deflink.wcid.sta` to ensure the station peer is properly initialized before proceeding with decapsulation offload configuration. Cc: stable@vger.kernel.org Fixes: 24299fc869f7 ("mt76: mt7921: enable rx header traslation offload") Signed-off-by: Deren Wu <deren.wu@mediatek.com> Link: https://patch.msgid.link/f23a72ba7a3c1ad38ba9e13bb54ef21d6ef44ffb.1748149855.git.deren.wu@mediatek.com Signed-off-by: Felix Fietkau <nbd@nbd.name>
8 dayswifi: mt76: mt7925: prevent NULL pointer dereference in ↵Deren Wu
mt7925_sta_set_decap_offload() Add a NULL check for msta->vif before accessing its members to prevent a kernel panic in AP mode deployment. This also fix the issue reported in [1]. The crash occurs when this function is triggered before the station is fully initialized. The call trace shows a page fault at mt7925_sta_set_decap_offload() due to accessing resources when msta->vif is NULL. Fix this by adding an early return if msta->vif is NULL and also check wcid.sta is ready. This ensures we only proceed with decap offload configuration when the station's state is properly initialized. [14739.655703] Unable to handle kernel paging request at virtual address ffffffffffffffa0 [14739.811820] CPU: 0 UID: 0 PID: 895854 Comm: hostapd Tainted: G [14739.821394] Tainted: [C]=CRAP, [O]=OOT_MODULE [14739.825746] Hardware name: Raspberry Pi 4 Model B Rev 1.1 (DT) [14739.831577] pstate: 60000005 (nZCv daif -PAN -UAO -TCO -DIT -SSBS BTYPE=--) [14739.838538] pc : mt7925_sta_set_decap_offload+0xc0/0x1b8 [mt7925_common] [14739.845271] lr : mt7925_sta_set_decap_offload+0x58/0x1b8 [mt7925_common] [14739.851985] sp : ffffffc085efb500 [14739.855295] x29: ffffffc085efb500 x28: 0000000000000000 x27: ffffff807803a158 [14739.862436] x26: ffffff8041ececb8 x25: 0000000000000001 x24: 0000000000000001 [14739.869577] x23: 0000000000000001 x22: 0000000000000008 x21: ffffff8041ecea88 [14739.876715] x20: ffffff8041c19ca0 x19: ffffff8078031fe0 x18: 0000000000000000 [14739.883853] x17: 0000000000000000 x16: ffffffe2aeac1110 x15: 000000559da48080 [14739.890991] x14: 0000000000000001 x13: 0000000000000000 x12: 0000000000000000 [14739.898130] x11: 0a10020001008e88 x10: 0000000000001a50 x9 : ffffffe26457bfa0 [14739.905269] x8 : ffffff8042013bb0 x7 : ffffff807fb6cbf8 x6 : dead000000000100 [14739.912407] x5 : dead000000000122 x4 : ffffff80780326c8 x3 : 0000000000000000 [14739.919546] x2 : 0000000000000000 x1 : 0000000000000000 x0 : ffffff8041ececb8 [14739.926686] Call trace: [14739.929130] mt7925_sta_set_decap_offload+0xc0/0x1b8 [mt7925_common] [14739.935505] ieee80211_check_fast_rx+0x19c/0x510 [mac80211] [14739.941344] _sta_info_move_state+0xe4/0x510 [mac80211] [14739.946860] sta_info_move_state+0x1c/0x30 [mac80211] [14739.952116] sta_apply_auth_flags.constprop.0+0x90/0x1b0 [mac80211] [14739.958708] sta_apply_parameters+0x234/0x5e0 [mac80211] [14739.964332] ieee80211_add_station+0xdc/0x190 [mac80211] [14739.969950] nl80211_new_station+0x46c/0x670 [cfg80211] [14739.975516] genl_family_rcv_msg_doit+0xdc/0x150 [14739.980158] genl_rcv_msg+0x218/0x298 [14739.983830] netlink_rcv_skb+0x64/0x138 [14739.987670] genl_rcv+0x40/0x60 [14739.990816] netlink_unicast+0x314/0x380 [14739.994742] netlink_sendmsg+0x198/0x3f0 [14739.998664] __sock_sendmsg+0x64/0xc0 [14740.002324] ____sys_sendmsg+0x260/0x298 [14740.006242] ___sys_sendmsg+0xb4/0x110 Cc: stable@vger.kernel.org Link: https://github.com/morrownr/USB-WiFi/issues/603 [1] Fixes: b859ad65309a ("wifi: mt76: mt7925: add link handling in mt7925_sta_set_decap_offload") Signed-off-by: Deren Wu <deren.wu@mediatek.com> Link: https://patch.msgid.link/35aedbffa050e98939264300407a52ba4e236d52.1748149855.git.deren.wu@mediatek.com Signed-off-by: Felix Fietkau <nbd@nbd.name>
8 dayswifi: mt76: mt7925: fix incorrect scan probe IE handling for hw_scanMing Yen Hsieh
The IEs should be processed and filled into the command tlv separately according to each band. Cc: stable@vger.kernel.org Fixes: c948b5da6bbe ("wifi: mt76: mt7925: add Mediatek Wi-Fi7 driver for mt7925 chips") Signed-off-by: Ming Yen Hsieh <mingyen.hsieh@mediatek.com> Link: https://patch.msgid.link/20250616063649.1100503-1-mingyen.hsieh@mediatek.com Signed-off-by: Felix Fietkau <nbd@nbd.name>
8 dayswifi: mt76: mt7925: fix invalid array index in ssid assignment during hw scanMichael Lo
Update the destination index to use 'n_ssids', which is incremented only when a valid SSID is present. Previously, both mt76_connac_mcu_hw_scan() and mt7925_mcu_hw_scan() used the loop index 'i' for the destination array, potentially leaving gaps if any source SSIDs had zero length. Cc: stable@vger.kernel.org Fixes: c948b5da6bbe ("wifi: mt76: mt7925: add Mediatek Wi-Fi7 driver for mt7925 chips") Signed-off-by: Michael Lo <michael.lo@mediatek.com> Signed-off-by: Ming Yen Hsieh <mingyen.hsieh@mediatek.com> Link: https://patch.msgid.link/20250612062046.160598-1-mingyen.hsieh@mediatek.com Signed-off-by: Felix Fietkau <nbd@nbd.name>
8 dayswifi: mt76: mt7925: fix the wrong config for tx interruptMing Yen Hsieh
MT_INT_TX_DONE_MCU_WM may cause tx interrupt to be mishandled during a reset failure, leading to the reset process failing. By using MT_INT_TX_DONE_MCU instead of MT_INT_TX_DONE_MCU_WM, the handling of tx interrupt is improved. Cc: stable@vger.kernel.org Fixes: c948b5da6bbe ("wifi: mt76: mt7925: add Mediatek Wi-Fi7 driver for mt7925 chips") Signed-off-by: Ming Yen Hsieh <mingyen.hsieh@mediatek.com> Link: https://patch.msgid.link/20250612060931.135635-1-mingyen.hsieh@mediatek.com Signed-off-by: Felix Fietkau <nbd@nbd.name>
8 dayswifi: mt76: Remove RCU section in mt7996_mac_sta_rc_work()Lorenzo Bianconi
Since mt7996_mcu_add_rate_ctrl() and mt7996_mcu_set_fixed_field() can't run in atomic context, move RCU critical section in mt7996_mcu_add_rate_ctrl() and mt7996_mcu_set_fixed_field(). This patch fixes a 'sleep while atomic' issue in mt7996_mac_sta_rc_work(). Fixes: 0762bdd30279 ("wifi: mt76: mt7996: rework mt7996_mac_sta_rc_work to support MLO") Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org> Tested-by: Ben Greear <greearb@candelatech.com> Link: https://patch.msgid.link/20250605-mt7996-sleep-while-atomic-v1-5-d46d15f9203c@kernel.org Signed-off-by: Felix Fietkau <nbd@nbd.name>
8 dayswifi: mt76: Move RCU section in mt7996_mcu_add_rate_ctrl()Lorenzo Bianconi
Since mt76_mcu_skb_send_msg() routine can't be executed in atomic context, move RCU section in mt7996_mcu_add_rate_ctrl() and execute mt76_mcu_skb_send_msg() in non-atomic context. This is a preliminary patch to fix a 'sleep while atomic' issue in mt7996_mac_sta_rc_work(). Fixes: 0762bdd30279 ("wifi: mt76: mt7996: rework mt7996_mac_sta_rc_work to support MLO") Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org> Link: https://patch.msgid.link/20250605-mt7996-sleep-while-atomic-v1-4-d46d15f9203c@kernel.org Signed-off-by: Felix Fietkau <nbd@nbd.name>
8 dayswifi: mt76: Move RCU section in mt7996_mcu_add_rate_ctrl_fixed()Lorenzo Bianconi
Since mt7996_mcu_set_fixed_field() can't be executed in a RCU critical section, move RCU section in mt7996_mcu_add_rate_ctrl_fixed() and run mt7996_mcu_set_fixed_field() in non-atomic context. This is a preliminary patch to fix a 'sleep while atomic' issue in mt7996_mac_sta_rc_work(). Fixes: 0762bdd30279 ("wifi: mt76: mt7996: rework mt7996_mac_sta_rc_work to support MLO") Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org> Link: https://patch.msgid.link/20250605-mt7996-sleep-while-atomic-v1-3-d46d15f9203c@kernel.org Signed-off-by: Felix Fietkau <nbd@nbd.name>
8 dayswifi: mt76: Move RCU section in mt7996_mcu_set_fixed_field()Lorenzo Bianconi
Since mt76_mcu_skb_send_msg() routine can't be executed in atomic context, move RCU section in mt7996_mcu_set_fixed_field() and execute mt76_mcu_skb_send_msg() in non-atomic context. This is a preliminary patch to fix a 'sleep while atomic' issue in mt7996_mac_sta_rc_work(). Fixes: 0762bdd30279 ("wifi: mt76: mt7996: rework mt7996_mac_sta_rc_work to support MLO") Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org> Link: https://patch.msgid.link/20250605-mt7996-sleep-while-atomic-v1-2-d46d15f9203c@kernel.org Signed-off-by: Felix Fietkau <nbd@nbd.name>
8 dayswifi: mt76: Assume __mt76_connac_mcu_alloc_sta_req runs in atomic contextLorenzo Bianconi
Rely on GFP_ATOMIC flag in __mt76_connac_mcu_alloc_sta_req since it can run in atomic context. This is a preliminary patch to fix a 'sleep while atomic' issue in mt7996_mac_sta_rc_work(). Fixes: 0762bdd30279 ("wifi: mt76: mt7996: rework mt7996_mac_sta_rc_work to support MLO") Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org> Link: https://patch.msgid.link/20250605-mt7996-sleep-while-atomic-v1-1-d46d15f9203c@kernel.org Signed-off-by: Felix Fietkau <nbd@nbd.name>
2025-06-08treewide, timers: Rename from_timer() to timer_container_of()Ingo Molnar
Move this API to the canonical timer_*() namespace. [ tglx: Redone against pre rc1 ] Signed-off-by: Ingo Molnar <mingo@kernel.org> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Link: https://lore.kernel.org/all/aB2X0jCKQO56WdMt@gmail.com
2025-05-22Merge tag 'wireless-next-2025-05-22' of ↵Jakub Kicinski
https://git.kernel.org/pub/scm/linux/kernel/git/wireless/wireless-next Johannes Berg says: ==================== Lots of new things, notably: * ath12k: monitor mode for WCN7850, better 6 GHz regulatory * brcmfmac: SAE for some Cypress devices * iwlwifi: rework device configuration * mac80211: scan improvements with MLO * mt76: EHT improvements, new device IDs * rtw88: throughput improvements * rtw89: MLO, STA/P2P concurrency improvements, SAR * tag 'wireless-next-2025-05-22' of https://git.kernel.org/pub/scm/linux/kernel/git/wireless/wireless-next: (389 commits) wifi: mt76: mt7925: add rfkill_poll for hardware rfkill wifi: mt76: support power delta calculation for 5 TX paths wifi: mt76: fix available_antennas setting wifi: mt76: mt7996: fix RX buffer size of MCU event wifi: mt76: mt7996: change max beacon size wifi: mt76: mt7996: fix invalid NSS setting when TX path differs from NSS wifi: mt76: mt7996: drop fragments with multicast or broadcast RA wifi: mt76: mt7996: set EHT max ampdu length capability wifi: mt76: mt7996: fix beamformee SS field wifi: mt76: remove capability of partial bandwidth UL MU-MIMO wifi: mt76: mt7925: add test mode support wifi: mt76: mt7925: extend MCU support for testmode wifi: mt76: mt7925: ensure all MCU commands wait for response wifi: mt76: mt7925: refine the sniffer commnad wifi: mt76: mt7925: prevent multiple scan commands wifi: mt76: mt7915: Fix null-ptr-deref in mt7915_mmio_wed_init() wifi: mt76: mt7996: Fix null-ptr-deref in mt7996_mmio_wed_init() wifi: mt76: mt7925: add RNR scan support for 6GHz wifi: mt76: add mt76_connac_mcu_build_rnr_scan_param routine wifi: mt76: scan: Fix 'mlink' dereferenced before IS_ERR_OR_NULL check ... ==================== Link: https://patch.msgid.link/20250522165501.189958-50-johannes@sipsolutions.net Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-05-22wifi: mt76: mt7925: add rfkill_poll for hardware rfkillAllan Wang
Add mac80211 rfkill_poll ops to monitor hardware rfkill state and state change will be updated. Signed-off-by: Allan Wang <allan.wang@mediatek.com> Link: https://patch.msgid.link/20250507053131.4173691-1-allan.wang@mediatek.com Signed-off-by: Felix Fietkau <nbd@nbd.name>
2025-05-22wifi: mt76: support power delta calculation for 5 TX pathsShayne Chen
One variant of MT7992 has 5 TX paths, so extend the power delta function to support it. Also, rename nss_delta to path_delta since the value is based on the number of TX paths rather tha the number of spatial streams. (path delta [0.5 dBm] = 10 * log(path number) [dBm] * 2) Co-developed-by: StanleyYP Wang <StanleyYP.Wang@mediatek.com> Signed-off-by: StanleyYP Wang <StanleyYP.Wang@mediatek.com> Signed-off-by: Shayne Chen <shayne.chen@mediatek.com> Link: https://patch.msgid.link/20250515032952.1653494-9-shayne.chen@mediatek.com Signed-off-by: Felix Fietkau <nbd@nbd.name>
2025-05-22wifi: mt76: fix available_antennas settingShayne Chen
Check if available_antennas_tx and available_antennas_rx are already set during the per-chip initialization phase; otherwise, they could be overwritten with incorrect values. Fixes: 69d54ce7491d ("wifi: mt76: mt7996: switch to single multi-radio wiphy") Signed-off-by: Shayne Chen <shayne.chen@mediatek.com> Link: https://patch.msgid.link/20250515032952.1653494-8-shayne.chen@mediatek.com Signed-off-by: Felix Fietkau <nbd@nbd.name>
2025-05-22wifi: mt76: mt7996: fix RX buffer size of MCU eventShayne Chen
Some management frames are first processed by the firmware and then passed to the driver through the MCU event rings. In CONNAC3, event rings do not support scatter-gather and have a size limitation of 2048 bytes. If a packet sized between 1728 and 2048 bytes arrives from an event ring, the ring will hang because the driver attempts to use scatter-gather to process it. To fix this, include the size of struct skb_shared_info in the MCU RX buffer size to prevent scatter-gather from being used for event skb in mt76_dma_rx_fill_buf(). Fixes: 98686cd21624 ("wifi: mt76: mt7996: add driver for MediaTek Wi-Fi 7 (802.11be) devices") Co-developed-by: Peter Chiu <chui-hao.chiu@mediatek.com> Signed-off-by: Peter Chiu <chui-hao.chiu@mediatek.com> Signed-off-by: Shayne Chen <shayne.chen@mediatek.com> Link: https://patch.msgid.link/20250515032952.1653494-7-shayne.chen@mediatek.com Signed-off-by: Felix Fietkau <nbd@nbd.name>
2025-05-22wifi: mt76: mt7996: change max beacon sizePeter Chiu
According to hardware capability, the maximum beacon size is 2048 bytes minus the size of TLV headers. Signed-off-by: Peter Chiu <chui-hao.chiu@mediatek.com> Signed-off-by: Shayne Chen <shayne.chen@mediatek.com> Link: https://patch.msgid.link/20250515032952.1653494-6-shayne.chen@mediatek.com Signed-off-by: Felix Fietkau <nbd@nbd.name>
2025-05-22wifi: mt76: mt7996: fix invalid NSS setting when TX path differs from NSSPeter Chiu
The maximum TX path and NSS may differ on a band. For example, one variant of the MT7992 has 5 TX paths and 4 NSS on the 5 GHz band. To address this, add orig_antenna_mask to record the maximum NSS and prevent setting an invalid NSS in mt7996_set_antenna(). Fixes: 69d54ce7491d ("wifi: mt76: mt7996: switch to single multi-radio wiphy") Signed-off-by: Peter Chiu <chui-hao.chiu@mediatek.com> Signed-off-by: Shayne Chen <shayne.chen@mediatek.com> Link: https://patch.msgid.link/20250515032952.1653494-5-shayne.chen@mediatek.com Signed-off-by: Felix Fietkau <nbd@nbd.name>
2025-05-22wifi: mt76: mt7996: drop fragments with multicast or broadcast RABenjamin Lin
IEEE 802.11 fragmentation can only be applied to unicast frames. Therefore, drop fragments with multicast or broadcast RA. This patch addresses vulnerabilities such as CVE-2020-26145. Signed-off-by: Benjamin Lin <benjamin-jw.lin@mediatek.com> Signed-off-by: Shayne Chen <shayne.chen@mediatek.com> Link: https://patch.msgid.link/20250515032952.1653494-4-shayne.chen@mediatek.com Signed-off-by: Felix Fietkau <nbd@nbd.name>
2025-05-22wifi: mt76: mt7996: set EHT max ampdu length capabilityPeter Chiu
Set the max AMPDU length in the EHT MAC CAP. Without this patch, the peer station cannot obtain the correct capability, which prevents achieving peak throughput on the 2 GHz band. Fixes: 1816ad9381e0 ("wifi: mt76: mt7996: add max mpdu len capability") Signed-off-by: Peter Chiu <chui-hao.chiu@mediatek.com> Signed-off-by: Shayne Chen <shayne.chen@mediatek.com> Link: https://patch.msgid.link/20250515032952.1653494-3-shayne.chen@mediatek.com Signed-off-by: Felix Fietkau <nbd@nbd.name>
2025-05-22wifi: mt76: mt7996: fix beamformee SS fieldHoward Hsu
Fix the beamformee SS field for the mt7996, mt7992 and mt7990 chipsets. For the mt7992, this value shall be set to 0x4, while the others shall be set to 0x3. Fixes: 5b20557593d4 ("wifi: mt76: connac: adjust phy capabilities based on band constraints") Signed-off-by: Howard Hsu <howard-yh.hsu@mediatek.com> Signed-off-by: Shayne Chen <shayne.chen@mediatek.com> Link: https://patch.msgid.link/20250515032952.1653494-2-shayne.chen@mediatek.com Signed-off-by: Felix Fietkau <nbd@nbd.name>
2025-05-22wifi: mt76: remove capability of partial bandwidth UL MU-MIMOHoward Hsu
The firmware only supports full bandwidth UL MU-MIMO, so remove the partial bandwidth capability from HE PHY CAP. Signed-off-by: Howard Hsu <howard-yh.hsu@mediatek.com> Signed-off-by: Shayne Chen <shayne.chen@mediatek.com> Link: https://patch.msgid.link/20250515032952.1653494-1-shayne.chen@mediatek.com Signed-off-by: Felix Fietkau <nbd@nbd.name>
2025-05-22wifi: mt76: mt7925: add test mode supportMichael Lo
The test mode interface allows controlled execution of chip-level operations such as continuous transmission, reception tests, and register access, which are essential during bring-up, diagnostics, and factory testing. Co-developed-by: Sean Wang <sean.wang@mediatek.com> Signed-off-by: Sean Wang <sean.wang@mediatek.com> Signed-off-by: Michael Lo <michael.lo@mediatek.com> Link: https://patch.msgid.link/20250505233618.1951021-2-sean.wang@kernel.org Signed-off-by: Felix Fietkau <nbd@nbd.name>
2025-05-22wifi: mt76: mt7925: extend MCU support for testmodeMichael Lo
Add MCU command and its handling needed for testmode support on MT7925. This enables low-level chip testing features such as continuous TX/RX.. Co-developed-by: Sean Wang <sean.wang@mediatek.com> Signed-off-by: Sean Wang <sean.wang@mediatek.com> Signed-off-by: Michael Lo <michael.lo@mediatek.com> Link: https://patch.msgid.link/20250505233618.1951021-1-sean.wang@kernel.org Signed-off-by: Felix Fietkau <nbd@nbd.name>
2025-05-22wifi: mt76: mt7925: ensure all MCU commands wait for responseMichael Lo
Modify MCU command sending functions to wait for a response, ensuring consistent behavior across all commands and improves reliability by confirming that each command is processed successfully. Fixes: c948b5da6bbe ("wifi: mt76: mt7925: add Mediatek Wi-Fi7 driver for mt7925 chips") Signed-off-by: Michael Lo <michael.lo@mediatek.com> Signed-off-by: Ming Yen Hsieh <mingyen.hsieh@mediatek.com> Link: https://patch.msgid.link/20250414013954.1151774-3-mingyen.hsieh@mediatek.com Signed-off-by: Felix Fietkau <nbd@nbd.name>
2025-05-22wifi: mt76: mt7925: refine the sniffer commnadMing Yen Hsieh
Remove a duplicate call to `mt76_mcu_send_msg` to fix redundant operations in the sniffer command handling. Fixes: c948b5da6bbe ("wifi: mt76: mt7925: add Mediatek Wi-Fi7 driver for mt7925 chips") Signed-off-by: Ming Yen Hsieh <mingyen.hsieh@mediatek.com> Link: https://patch.msgid.link/20250414013954.1151774-2-mingyen.hsieh@mediatek.com Signed-off-by: Felix Fietkau <nbd@nbd.name>
2025-05-22wifi: mt76: mt7925: prevent multiple scan commandsMing Yen Hsieh
Add a check to ensure only one scan command is active at a time by testing the MT76_HW_SCANNING state. Fixes: c948b5da6bbe ("wifi: mt76: mt7925: add Mediatek Wi-Fi7 driver for mt7925 chips") Signed-off-by: Ming Yen Hsieh <mingyen.hsieh@mediatek.com> Link: https://patch.msgid.link/20250414013954.1151774-1-mingyen.hsieh@mediatek.com Signed-off-by: Felix Fietkau <nbd@nbd.name>
2025-05-22wifi: mt76: mt7915: Fix null-ptr-deref in mt7915_mmio_wed_init()Henry Martin
devm_ioremap() returns NULL on error. Currently, mt7915_mmio_wed_init() does not check for this case, which results in a NULL pointer dereference. Prevent null pointer dereference in mt7915_mmio_wed_init(). Fixes: 4f831d18d12d ("wifi: mt76: mt7915: enable WED RX support") Signed-off-by: Henry Martin <bsdhenrymartin@gmail.com> Link: https://patch.msgid.link/20250407061900.85317-1-bsdhenrymartin@gmail.com Signed-off-by: Felix Fietkau <nbd@nbd.name>
2025-05-22wifi: mt76: mt7996: Fix null-ptr-deref in mt7996_mmio_wed_init()Henry Martin
devm_ioremap() returns NULL on error. Currently, mt7996_mmio_wed_init() does not check for this case, which results in a NULL pointer dereference. Prevent null pointer dereference in mt7996_mmio_wed_init() Fixes: 83eafc9251d6 ("wifi: mt76: mt7996: add wed tx support") Signed-off-by: Henry Martin <bsdhenrymartin@gmail.com> Link: https://patch.msgid.link/20250407032349.83360-1-bsdhenrymartin@gmail.com Signed-off-by: Felix Fietkau <nbd@nbd.name>
2025-05-22wifi: mt76: mt7925: add RNR scan support for 6GHzMing Yen Hsieh
Enhance the mt7925 to include RNR scan support. It adds the necessary RNR information to the scan command. Signed-off-by: Ming Yen Hsieh <mingyen.hsieh@mediatek.com> Link: https://patch.msgid.link/20250321013829.3598-2-mingyen.hsieh@mediatek.com Signed-off-by: Felix Fietkau <nbd@nbd.name>
2025-05-22wifi: mt76: add mt76_connac_mcu_build_rnr_scan_param routineMing Yen Hsieh
Introduce mt76_connac_mcu_build_rnr_scan_param routine for handling RNR scan. This is a preliminary patch to enable RNR scan in mt7921 and mt7925 driver. Signed-off-by: Ming Yen Hsieh <mingyen.hsieh@mediatek.com> Link: https://patch.msgid.link/20250321013829.3598-1-mingyen.hsieh@mediatek.com Signed-off-by: Felix Fietkau <nbd@nbd.name>
2025-05-22wifi: mt76: scan: Fix 'mlink' dereferenced before IS_ERR_OR_NULL checkFeng Jiang
Reported-by: kernel test robot <lkp@intel.com> Reported-by: Dan Carpenter <dan.carpenter@linaro.org> Closes: https://lore.kernel.org/r/202504011739.HvUKtUUe-lkp@intel.com/ Fixes: 3ba20af886d1 ("wifi: mt76: scan: set vif offchannel link for scanning/roc") Signed-off-by: Feng Jiang <jiangfeng@kylinos.cn> Link: https://patch.msgid.link/20250402062415.25434-1-jiangfeng@kylinos.cn Signed-off-by: Felix Fietkau <nbd@nbd.name>
2025-05-21wifi: mt76: mt7996: remove duplicate check in mt7996_mcu_sta_mld_setup_tlv()Dan Carpenter
The "msta_link" pointer has two NULL checks. Delete the second check. Signed-off-by: Dan Carpenter <dan.carpenter@linaro.org> Acked-by: Lorenzo Bianconi <lorenzo@kernel.org> Link: https://patch.msgid.link/fde7246b-08a2-4c2f-b2dc-c3fd0e6b300b@stanley.mountain Signed-off-by: Felix Fietkau <nbd@nbd.name>
2025-05-21Revert "wifi: mt76: Check link_conf pointer in mt76_connac_mcu_sta_basic_tlv()"Lorenzo Bianconi
In mt76_connac_mcu_sta_basic_tlv() link_conf is always not NULL. Revert the commit '9890624c1b39 ("wifi: mt76: Check link_conf pointer in mt76_connac_mcu_sta_basic_tlv()")' in order to fix the following warning: drivers/net/wireless/mediatek/mt76/mt76_connac_mcu.c:394 mt76_connac_mcu_sta_basic_tlv() warn: variable dereferenced before check 'link_conf' This reverts commit 9890624c1b3948c1c7f1d0e19ef0bb7680b8c80d. Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org> Link: https://patch.msgid.link/20250325-mt76_connac_mcu_sta_basic_tlv-link_conf-revert-v1-1-b84efefb74ee@kernel.org Signed-off-by: Felix Fietkau <nbd@nbd.name>
2025-05-21wifi: mt76: mt7996: fix uninitialized symbol warningsunliming
Fix below smatch warnings: drivers/net/wireless/mediatek/mt76/mt7996/main.c:952 mt7996_mac_sta_add_links() error: uninitialized symbol 'err'. drivers/net/wireless/mediatek/mt76/mt7996/main.c:1133 mt7996_set_rts_threshold() error: uninitialized symbol 'ret'. Reported-by: kernel test robot <lkp@intel.com> Reported-by: Dan Carpenter <error27@gmail.com> Closes: https://lore.kernel.org/r/202504101051.1ya4Z4va-lkp@intel.com/ Signed-off-by: sunliming <sunliming@kylinos.cn> Link: https://patch.msgid.link/20250419031528.2073892-1-sunliming@linux.dev Signed-off-by: Felix Fietkau <nbd@nbd.name>
2025-05-21wifi: mt76: mt7996: avoid null deref in mt7996_stop_phy()Qasim Ijaz
In mt7996_stop_phy() the mt7996_phy structure is dereferenced before the null sanity check which could lead to a null deref. Fix by moving the dereference operation after the sanity check. Fixes: 69d54ce7491d ("wifi: mt76: mt7996: switch to single multi-radio wiphy") Signed-off-by: Qasim Ijaz <qasdev00@gmail.com> Link: https://patch.msgid.link/20250421111344.11484-1-qasdev00@gmail.com Signed-off-by: Felix Fietkau <nbd@nbd.name>
2025-05-21wifi: mt76: mt7996: avoid NULL pointer dereference in mt7996_set_monitor()Qasim Ijaz
The function mt7996_set_monitor() dereferences phy before the NULL sanity check. Fix this to avoid NULL pointer dereference by moving the dereference after the check. Fixes: 69d54ce7491d ("wifi: mt76: mt7996: switch to single multi-radio wiphy") Signed-off-by: Qasim Ijaz <qasdev00@gmail.com> Link: https://patch.msgid.link/20250421112544.13430-1-qasdev00@gmail.com Signed-off-by: Felix Fietkau <nbd@nbd.name>
2025-05-21wifi: mt76: mt7921: add 160 MHz AP for mt7922 deviceSamuel Williams
This allows mt7922 in hostapd mode to transmit up to 1.4 Gbps. Signed-off-by: Samuel Williams <sam8641@gmail.com> Link: https://patch.msgid.link/20250511005316.1118961-1-sam8641@gmail.com Signed-off-by: Felix Fietkau <nbd@nbd.name>
2025-05-21wifi: mt76: mt7925: fix host interrupt register initializationMichael Lo
ensure proper interrupt handling and aligns with the hardware spec by updating the register offset for MT_WFDMA0_HOST_INT_ENA. Cc: stable@vger.kernel.org Fixes: c948b5da6bbe ("wifi: mt76: mt7925: add Mediatek Wi-Fi7 driver for mt7925 chips") Signed-off-by: Michael Lo <michael.lo@mediatek.com> Signed-off-by: Ming Yen Hsieh <mingyen.hsieh@mediatek.com> Link: https://patch.msgid.link/20250509083512.455095-1-mingyen.hsieh@mediatek.com Signed-off-by: Felix Fietkau <nbd@nbd.name>
2025-05-21wifi: mt76: mt7925: introduce thermal protectionLeon Yen
Add thermal protection to prevent the chip from possible overheating due to prolonged high traffic and adverse operating conditions. Signed-off-by: Leon Yen <leon.yen@mediatek.com> Signed-off-by: Ming Yen Hsieh <mingyen.hsieh@mediatek.com> Link: https://patch.msgid.link/20250509082117.453819-1-mingyen.hsieh@mediatek.com Signed-off-by: Felix Fietkau <nbd@nbd.name>
2025-05-21wifi: mt76: mt76x2: Add support for LiteOn WN4516R,WN4519RHenk Vergonet
Adds support for: - LiteOn WN4516R - LiteOn WN4519R Both use: - A nonstandard USB connector - Mediatek chipset MT7600U - ASIC revision: 76320044 Disabled VHT support on ASIC revision 76320044: This fixes the 5G connectibity issue on LiteOn WN4519R module see https://github.com/openwrt/mt76/issues/971 And may also fix the 5G issues on the XBox One Wireless Adapter see https://github.com/openwrt/mt76/issues/200 I have looked at the FCC info related to the MT7632U chip as mentioned in here: https://github.com/openwrt/mt76/issues/459 These confirm the chipset does not support 'ac' mode and hence VHT should be turned of. Signed-off-by: Henk Vergonet <henk.vergonet@gmail.com> Acked-by: Lorenzo Bianconi <lorenzo@kernel.org> Link: https://patch.msgid.link/20250418143914.31384-1-henk.vergonet@gmail.com Signed-off-by: Felix Fietkau <nbd@nbd.name>
2025-05-21wifi: mt76: Remove an unneeded local variable in mt76x02_dma_init()Christophe JAILLET
Remove 't' which is unneeded since commit f3950a414143 ("mt76: set txwi_size according to the driver value") This slightly simplifies the code. Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr> Link: https://patch.msgid.link/e86d5602bdd8b6bd22258ee69536992f39470bf5.1744928865.git.christophe.jaillet@wanadoo.fr Signed-off-by: Felix Fietkau <nbd@nbd.name>
2025-05-21wifi: mt76: mt7996: prevent uninit return in mt7996_mac_sta_add_linksQasim Ijaz
If link_conf_dereference_protected() or mt7996_vif_link() or link_sta_dereference_protected() fail the code jumps to the error_unlink label and returns ret which is uninitialised. Fix this by setting err before jumping to error_unlink. Fixes: c7e4fc362443 ("wifi: mt76: mt7996: Update mt7996_mcu_add_sta to MLO support") Fixes: dd82a9e02c05 ("wifi: mt76: mt7996: Rely on mt7996_sta_link in sta_add/sta_remove callbacks") Signed-off-by: Qasim Ijaz <qasdev00@gmail.com> Link: https://patch.msgid.link/20250421110550.9839-1-qasdev00@gmail.com Signed-off-by: Felix Fietkau <nbd@nbd.name>
2025-05-21Revert "wifi: mt76: mt7996: fill txd by host driver"Shayne Chen
This reverts commit 3b522cadedfe6e9e0e8193d7d4ab5aa8d0c73209. The MTK connac3 has introduced new hardware, SDO (Software Defined Offload), to offload the process of filling the TX descriptor. Initially, there were some issues, but after several fixes, it should now be stable, allowing us to revert this commit. Additionally, activating SDO is essential for the proper functioning of features like TX checksum offload. Signed-off-by: Shayne Chen <shayne.chen@mediatek.com> Link: https://patch.msgid.link/20250328022847.1612082-1-shayne.chen@mediatek.com Signed-off-by: Felix Fietkau <nbd@nbd.name>
2025-05-21wifi: mt76: mt7996: Add NULL check in mt7996_thermal_initCharles Han
devm_kasprintf() can return a NULL pointer on failure,but this returned value in mt7996_thermal_init() is not checked. Add NULL check in mt7996_thermal_init(), to handle kernel NULL pointer dereference error. Fixes: 69d54ce7491d ("wifi: mt76: mt7996: switch to single multi-radio wiphy") Signed-off-by: Charles Han <hanchunchao@inspur.com> Link: https://patch.msgid.link/20250407095551.32127-1-hanchunchao@inspur.com Signed-off-by: Felix Fietkau <nbd@nbd.name>
2025-05-21wifi: mt76: mt7925: add EHT preamble puncturingAllan Wang
Add mt7925 EHT preamble puncturing. Signed-off-by: Allan Wang <allan.wang@mediatek.com> Link: https://patch.msgid.link/20250401083525.2734333-1-allan.wang@mediatek.com Signed-off-by: Felix Fietkau <nbd@nbd.name>
generated by cgit (git 2.34.1) at 2025-07-15 10:58:16 +0000