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15 hourswifi: mt76: Remove blank line after mt792x firmware version dmesgHEADmasterShuah Khan
An extra blank line gets printed after printing firmware version because the build date is null terminated. Remove the "\n" from dev_info() calls to print firmware version and build date to fix the problem. Reported-by: Mario Limonciello <superm1@gmail.com> Signed-off-by: Shuah Khan <skhan@linuxfoundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
15 hoursRevert "wifi: mt76: Strip whitespace from build ddate"Shuah Khan
This reverts commit f804a5895ebad2b2d4fb8a3688d2115926e993d5. This change introduced the following panic, and mt792x_load_firmware() fails. wifi is dead on systems with mt792x wireless. kern :crit : kernel BUG at lib/string_helpers.c:1043! kern :warn : Oops: invalid opcode: 0000 [#1] SMP NOPTI kern :warn : CPU: 14 UID: 0 PID: 61 Comm: kworker/14:0 Tainted: G W 6.19.0-rc1 #1 PREEMPT(voluntary) kern :warn : Tainted: [W]=WARN kern :warn : Hardware name: Framework Laptop 13 (AMD Ryzen 7040Series)/FRANMDCP07, BIOS 03.16 07/25/2025 kern :warn : Workqueue: events mt7921_init_work [mt7921_common] kern :warn : RIP: 0010:__fortify_panic+0xd/0xf kern :warn : Code: 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa 40 0f b6 ff e8 c3 55 71 00 <0f> 0b 48 8b 54 24 10 48 8b 74 24 08 4c 89 e9 48 c7 c7 00 a2 d5 a0 kern :warn : RSP: 0018:ffffa7a5c03a3d10 EFLAGS: 00010246 kern :warn : RAX: ffffffffa0d7aaf2 RBX: 0000000000000000 RCX: ffffffffa0d7aaf2 kern :warn : RDX: 0000000000000011 RSI: ffffffffa0d5a170 RDI: ffffffffa128db10 kern :warn : RBP: ffff91650ae52060 R08: 0000000000000010 R09: ffffa7a5c31b2000 kern :warn : R10: ffffa7a5c03a3bf0 R11: 00000000ffffffff R12: 0000000000000000 kern :warn : R13: ffffa7a5c31b2000 R14: 0000000000001000 R15: 0000000000000000 kern :warn : FS: 0000000000000000(0000) GS:ffff91743e664000(0000) knlGS:0000000000000000 kern :warn : CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 kern :warn : CR2: 00007f10786c241c CR3: 00000003eca24000 CR4: 0000000000f50ef0 kern :warn : PKRU: 55555554 kern :warn : Call Trace: kern :warn : <TASK> kern :warn : mt76_connac2_load_patch.cold+0x2b/0xa41 [mt76_connac_lib] kern :warn : ? srso_alias_return_thunk+0x5/0xfbef5 kern :warn : mt792x_load_firmware+0x36/0x150 [mt792x_lib] kern :warn : mt7921_run_firmware+0x2c/0x4a0 [mt7921_common] kern :warn : ? srso_alias_return_thunk+0x5/0xfbef5 kern :warn : ? mt7921_rr+0x12/0x30 [mt7921e] kern :warn : ? srso_alias_return_thunk+0x5/0xfbef5 kern :warn : ? ____mt76_poll_msec+0x75/0xb0 [mt76] kern :warn : mt7921e_mcu_init+0x4c/0x7a [mt7921e] kern :warn : mt7921_init_work+0x51/0x190 [mt7921_common] kern :warn : process_one_work+0x18b/0x340 kern :warn : worker_thread+0x256/0x3a0 kern :warn : ? __pfx_worker_thread+0x10/0x10 kern :warn : kthread+0xfc/0x240 kern :warn : ? __pfx_kthread+0x10/0x10 kern :warn : ? __pfx_kthread+0x10/0x10 kern :warn : ret_from_fork+0x254/0x290 kern :warn : ? __pfx_kthread+0x10/0x10 kern :warn : ret_from_fork_asm+0x1a/0x30 kern :warn : </TASK> Signed-off-by: Shuah Khan <skhan@linuxfoundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2025-12-16wifi: iwlwifi: Implement settime64 as stub for MVM/MLD PTPYao Zi
Since commit dfb073d32cac ("ptp: Return -EINVAL on ptp_clock_register if required ops are NULL"), PTP clock registered through ptp_clock_register is required to have ptp_clock_info.settime64 set, however, neither MVM nor MLD's PTP clock implementation sets it, resulting in warnings when the interface starts up, like WARNING: drivers/ptp/ptp_clock.c:325 at ptp_clock_register+0x2c8/0x6b8, CPU#1: wpa_supplicant/469 CPU: 1 UID: 0 PID: 469 Comm: wpa_supplicant Not tainted 6.18.0+ #101 PREEMPT(full) ra: ffff800002732cd4 iwl_mvm_ptp_init+0x114/0x188 [iwlmvm] ERA: 9000000002fdc468 ptp_clock_register+0x2c8/0x6b8 iwlwifi 0000:01:00.0: Failed to register PHC clock (-22) I don't find an appropriate firmware interface to implement settime64() for iwlwifi MLD/MVM, thus instead create a stub that returns -EOPTNOTSUPP only, suppressing the warning and allowing the PTP clock to be registered. Reported-by: Nathan Chancellor <nathan@kernel.org> Closes: https://lore.kernel.org/all/20251108044822.GA3262936@ax162/ Signed-off-by: Yao Zi <ziyao@disroot.org> Tested-by: Nathan Chancellor <nathan@kernel.org> Reviewed-by: Simon Horman <horms@kernel.org> tested-by: damian Tometzki damian@riscv-rocks.de Tested-by: Oliver Hartkopp <socketcan@hartkopp.net> Acked-by: Miri Korenblit <miriam.rachel.korenblit@intel.com> Link: https://patch.msgid.link/20251204123204.9316-1-ziyao@disroot.org Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2025-12-16wifi: iwlwifi: Fix firmware version handlingVille Syrjälä
On my system the arithmetic done on the firmware numbers results in a negative number, but since the types are unsigned it gets interpreted as a large positive number. The end result is that the firmware gets rejected and wifi is defunct. Switch to signed types to handle this case correctly. iwlwifi 0000:0c:00.0: Driver unable to support your firmware API. Driver supports FW core 4294967294..2, firmware is 2. iwlwifi 0000:0c:00.0: Direct firmware load for iwlwifi-5000-4.ucode failed with error -2 iwlwifi 0000:0c:00.0: Direct firmware load for iwlwifi-5000-3.ucode failed with error -2 iwlwifi 0000:0c:00.0: Direct firmware load for iwlwifi-5000-2.ucode failed with error -2 iwlwifi 0000:0c:00.0: Direct firmware load for iwlwifi-5000-1.ucode failed with error -2 iwlwifi 0000:0c:00.0: no suitable firmware found! iwlwifi 0000:0c:00.0: minimum version required: iwlwifi-5000-1 iwlwifi 0000:0c:00.0: maximum version supported: iwlwifi-5000-5 iwlwifi 0000:0c:00.0: check git://git.kernel.org/pub/scm/linux/kernel/git/firmware/linux-firmware.git Cc: stable@vger.kernel.org Fixes: 5f708cccde9d ("wifi: iwlwifi: add a new FW file numbering scheme") Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Closes: https://bugzilla.kernel.org/show_bug.cgi?id=220805 Link: https://patch.msgid.link/20251113222852.15896-1-ville.syrjala@linux.intel.com Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2025-12-16wifi: wlcore: ensure skb headroom before skb_pushPeter Åstrand
This avoids occasional skb_under_panic Oops from wl1271_tx_work. In this case, headroom is less than needed (typically 110 - 94 = 16 bytes). Signed-off-by: Peter Astrand <astrand@lysator.liu.se> Link: https://patch.msgid.link/097bd417-e1d7-acd4-be05-47b199075013@lysator.liu.se Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2025-12-15Revert "wifi: rtw88: add WQ_UNBOUND to alloc_workqueue users"Bitterblue Smith
This reverts commit 9c194fe4625db18f93d5abcfb7f7997557a0b29d. This commit breaks all USB wifi adapters supported by rtw88: usb 1-2: new high-speed USB device number 6 using xhci_hcd usb 1-2: New USB device found, idVendor=2357, idProduct=0138, bcdDevice= 2.10 usb 1-2: New USB device strings: Mfr=1, Product=2, SerialNumber=3 usb 1-2: Product: 802.11ac NIC usb 1-2: Manufacturer: Realtek usb 1-2: SerialNumber: 123456 ------------[ cut here ]------------ WARNING: CPU: 3 PID: 152 at kernel/workqueue.c:5667 alloc_workqueue_noprof+0x676/0x770 [...] Call Trace: <TASK> ? rtw_usb_probe+0x30e/0xa5c [rtw88_usb 4af3cb64eedafeecbfb08f80c1e9e2893e2ee7a6] rtw_usb_probe+0x3eb/0xa5c [rtw88_usb 4af3cb64eedafeecbfb08f80c1e9e2893e2ee7a6] usb_probe_interface+0xdd/0x2c0 really_probe+0xdb/0x340 ? pm_runtime_barrier+0x55/0x90 ? __pfx___device_attach_driver+0x10/0x10 __driver_probe_device+0x78/0x140 driver_probe_device+0x1f/0xa0 __device_attach_driver+0x89/0x110 bus_for_each_drv+0x8f/0xe0 __device_attach+0xb0/0x1c0 bus_probe_device+0x90/0xa0 device_add+0x663/0x880 usb_set_configuration+0x5a5/0x870 usb_generic_driver_probe+0x4a/0x70 usb_probe_device+0x3d/0x140 ? driver_sysfs_add+0x59/0xd0 really_probe+0xdb/0x340 ? pm_runtime_barrier+0x55/0x90 ? __pfx___device_attach_driver+0x10/0x10 __driver_probe_device+0x78/0x140 driver_probe_device+0x1f/0xa0 __device_attach_driver+0x89/0x110 bus_for_each_drv+0x8f/0xe0 __device_attach+0xb0/0x1c0 bus_probe_device+0x90/0xa0 device_add+0x663/0x880 usb_new_device.cold+0x141/0x3b5 hub_event+0x1132/0x1900 ? page_counter_uncharge+0x4a/0x90 process_one_work+0x190/0x350 worker_thread+0x2d7/0x410 ? __pfx_worker_thread+0x10/0x10 kthread+0xf9/0x240 ? __pfx_kthread+0x10/0x10 ? __pfx_kthread+0x10/0x10 ret_from_fork+0x1c1/0x1f0 ? __pfx_kthread+0x10/0x10 ret_from_fork_asm+0x1a/0x30 </TASK> ---[ end trace 0000000000000000 ]--- rtw88_8822bu 1-2:1.0: failed to create RX work queue rtw88_8822bu 1-2:1.0: failed to init USB RX rtw88_8822bu 1-2:1.0: Firmware version 27.2.0, H2C version 13 rtw88_8822bu 1-2:1.0: probe with driver rtw88_8822bu failed with error -12 WQ_UNBOUND is not compatible with WQ_BH. Comment in enum wq_flags in workqueue.h says: /* BH wq only allows the following flags */ __WQ_BH_ALLOWS = WQ_BH | WQ_HIGHPRI | WQ_PERCPU, Signed-off-by: Bitterblue Smith <rtl8821cerfe2@gmail.com> Acked-by: Ping-Ke Shih <pkshih@realtek.com> Signed-off-by: Ping-Ke Shih <pkshih@realtek.com> Link: https://patch.msgid.link/d57efe48-b8ff-4bf1-942c-7e808535eda6@gmail.com
2025-12-15wifi: rtlwifi: 8192cu: fix tid out of range in rtl92cu_tx_fill_desc()Morning Star
TID getting from ieee80211_get_tid() might be out of range of array size of sta_entry->tids[], so check TID is less than MAX_TID_COUNT. Othwerwise, UBSAN warn: UBSAN: array-index-out-of-bounds in drivers/net/wireless/realtek/rtlwifi/rtl8192cu/trx.c:514:30 index 10 is out of range for type 'rtl_tid_data [9]' Fixes: 8ca4cdef9329 ("wifi: rtlwifi: rtl8192cu: Fix TX aggregation") Signed-off-by: Morning Star <alexbestoso@gmail.com> Signed-off-by: Ping-Ke Shih <pkshih@realtek.com> Link: https://patch.msgid.link/1764232628-13625-1-git-send-email-pkshih@realtek.com
2025-12-15wifi: rtw88: limit indirect IO under powered off for RTL8822CSPing-Ke Shih
The indirect IO is necessary for RTL8822CS, but not necessary for other chips. Otherwiese, it throws errors and becomes unusable. rtw88_8723cs mmc1:0001:1: WOW Firmware version 11.0.0, H2C version 0 rtw88_8723cs mmc1:0001:1: Firmware version 11.0.0, H2C version 0 rtw88_8723cs mmc1:0001:1: sdio read32 failed (0xf0): -110 rtw88_8723cs mmc1:0001:1: sdio write8 failed (0x1c): -110 rtw88_8723cs mmc1:0001:1: sdio read32 failed (0xf0): -110 By vendor driver, only RTL8822CS and RTL8822ES need indirect IO, but RTL8822ES isn't supported yet. Therefore, limit it to RTL8822CS only. Reported-by: Andrey Skvortsov <andrej.skvortzov@gmail.com> Closes: https://lore.kernel.org/linux-wireless/07a32e2d6c764eb1bd9415b5a921a652@realtek.com/T/#m997b4522f7209ba629561c776bfd1d13ab24c1d4 Fixes: 58de1f91e033 ("wifi: rtw88: sdio: use indirect IO for device registers before power-on") Signed-off-by: Ping-Ke Shih <pkshih@realtek.com> Tested-by: Andrey Skvortsov <andrej.skvortzov@gmail.com> Link: https://patch.msgid.link/1764034729-1251-1-git-send-email-pkshih@realtek.com
2025-12-03Merge tag 'net-next-6.19' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next Pull networking updates from Jakub Kicinski: "Core & protocols: - Replace busylock at the Tx queuing layer with a lockless list. Resulting in a 300% (4x) improvement on heavy TX workloads, sending twice the number of packets per second, for half the cpu cycles. - Allow constantly busy flows to migrate to a more suitable CPU/NIC queue. Normally we perform queue re-selection when flow comes out of idle, but under extreme circumstances the flows may be constantly busy. Add sysctl to allow periodic rehashing even if it'd risk packet reordering. - Optimize the NAPI skb cache, make it larger, use it in more paths. - Attempt returning Tx skbs to the originating CPU (like we already did for Rx skbs). - Various data structure layout and prefetch optimizations from Eric. - Remove ktime_get() from the recvmsg() fast path, ktime_get() is sadly quite expensive on recent AMD machines. - Extend threaded NAPI polling to allow the kthread busy poll for packets. - Make MPTCP use Rx backlog processing. This lowers the lock pressure, improving the Rx performance. - Support memcg accounting of MPTCP socket memory. - Allow admin to opt sockets out of global protocol memory accounting (using a sysctl or BPF-based policy). The global limits are a poor fit for modern container workloads, where limits are imposed using cgroups. - Improve heuristics for when to kick off AF_UNIX garbage collection. - Allow users to control TCP SACK compression, and default to 33% of RTT. - Add tcp_rcvbuf_low_rtt sysctl to let datacenter users avoid unnecessarily aggressive rcvbuf growth and overshot when the connection RTT is low. - Preserve skb metadata space across skb_push / skb_pull operations. - Support for IPIP encapsulation in the nftables flowtable offload. - Support appending IP interface information to ICMP messages (RFC 5837). - Support setting max record size in TLS (RFC 8449). - Remove taking rtnl_lock from RTM_GETNEIGHTBL and RTM_SETNEIGHTBL. - Use a dedicated lock (and RCU) in MPLS, instead of rtnl_lock. - Let users configure the number of write buffers in SMC. - Add new struct sockaddr_unsized for sockaddr of unknown length, from Kees. - Some conversions away from the crypto_ahash API, from Eric Biggers. - Some preparations for slimming down struct page. - YAML Netlink protocol spec for WireGuard. - Add a tool on top of YAML Netlink specs/lib for reporting commonly computed derived statistics and summarized system state. Driver API: - Add CAN XL support to the CAN Netlink interface. - Add uAPI for reporting PHY Mean Square Error (MSE) diagnostics, as defined by the OPEN Alliance's "Advanced diagnostic features for 100BASE-T1 automotive Ethernet PHYs" specification. - Add DPLL phase-adjust-gran pin attribute (and implement it in zl3073x). - Refactor xfrm_input lock to reduce contention when NIC offloads IPsec and performs RSS. - Add info to devlink params whether the current setting is the default or a user override. Allow resetting back to default. - Add standard device stats for PSP crypto offload. - Leverage DSA frame broadcast to implement simple HSR frame duplication for a lot of switches without dedicated HSR offload. - Add uAPI defines for 1.6Tbps link modes. Device drivers: - Add Motorcomm YT921x gigabit Ethernet switch support. - Add MUCSE driver for N500/N210 1GbE NIC series. - Convert drivers to support dedicated ops for timestamping control, and away from the direct IOCTL handling. While at it support GET operations for PHY timestamping. - Add (and convert most drivers to) a dedicated ethtool callback for reading the Rx ring count. - Significant refactoring efforts in the STMMAC driver, which supports Synopsys turn-key MAC IP integrated into a ton of SoCs. - Ethernet high-speed NICs: - Broadcom (bnxt): - support PPS in/out on all pins - Intel (100G, ice, idpf): - ice: implement standard ethtool and timestamping stats - i40e: support setting the max number of MAC addresses per VF - iavf: support RSS of GTP tunnels for 5G and LTE deployments - nVidia/Mellanox (mlx5): - reduce downtime on interface reconfiguration - disable being an XDP redirect target by default (same as other drivers) to avoid wasting resources if feature is unused - Meta (fbnic): - add support for Linux-managed PCS on 25G, 50G, and 100G links - Wangxun: - support Rx descriptor merge, and Tx head writeback - support Rx coalescing offload - support 25G SPF and 40G QSFP modules - Ethernet virtual: - Google (gve): - allow ethtool to configure rx_buf_len - implement XDP HW RX Timestamping support for DQ descriptor format - Microsoft vNIC (mana): - support HW link state events - handle hardware recovery events when probing the device - Ethernet NICs consumer, and embedded: - usbnet: add support for Byte Queue Limits (BQL) - AMD (amd-xgbe): - add device selftests - NXP (enetc): - add i.MX94 support - Broadcom integrated MACs (bcmgenet, bcmasp): - bcmasp: add support for PHY-based Wake-on-LAN - Broadcom switches (b53): - support port isolation - support BCM5389/97/98 and BCM63XX ARL formats - Lantiq/MaxLinear switches: - support bridge FDB entries on the CPU port - use regmap for register access - allow user to enable/disable learning - support Energy Efficient Ethernet - support configuring RMII clock delays - add tagging driver for MaxLinear GSW1xx switches - Synopsys (stmmac): - support using the HW clock in free running mode - add Eswin EIC7700 support - add Rockchip RK3506 support - add Altera Agilex5 support - Cadence (macb): - cleanup and consolidate descriptor and DMA address handling - add EyeQ5 support - TI: - icssg-prueth: support AF_XDP - Airoha access points: - add missing Ethernet stats and link state callback - add AN7583 support - support out-of-order Tx completion processing - Power over Ethernet: - pd692x0: preserve PSE configuration across reboots - add support for TPS23881B devices - Ethernet PHYs: - Open Alliance OATC14 10BASE-T1S PHY cable diagnostic support - Support 50G SerDes and 100G interfaces in Linux-managed PHYs - micrel: - support for non PTP SKUs of lan8814 - enable in-band auto-negotiation on lan8814 - realtek: - cable testing support on RTL8224 - interrupt support on RTL8221B - motorcomm: support for PHY LEDs on YT853 - microchip: support for LAN867X Rev.D0 PHYs w/ SQI and cable diag - mscc: support for PHY LED control - CAN drivers: - m_can: add support for optional reset and system wake up - remove can_change_mtu() obsoleted by core handling - mcp251xfd: support GPIO controller functionality - Bluetooth: - add initial support for PASTa - WiFi: - split ieee80211.h file, it's way too big - improvements in VHT radiotap reporting, S1G, Channel Switch Announcement handling, rate tracking in mesh networks - improve multi-radio monitor mode support, and add a cfg80211 debugfs interface for it - HT action frame handling on 6 GHz - initial chanctx work towards NAN - MU-MIMO sniffer improvements - WiFi drivers: - RealTek (rtw89): - support USB devices RTL8852AU and RTL8852CU - initial work for RTL8922DE - improved injection support - Intel: - iwlwifi: new sniffer API support - MediaTek (mt76): - WED support for >32-bit DMA - airoha NPU support - regdomain improvements - continued WiFi7/MLO work - Qualcomm/Atheros: - ath10k: factory test support - ath11k: TX power insertion support - ath12k: BSS color change support - ath12k: statistics improvements - brcmfmac: Acer A1 840 tablet quirk - rtl8xxxu: 40 MHz connection fixes/support" * tag 'net-next-6.19' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next: (1381 commits) net: page_pool: sanitise allocation order net: page pool: xa init with destroy on pp init net/mlx5e: Support XDP target xmit with dummy program net/mlx5e: Update XDP features in switch channels selftests/tc-testing: Test CAKE scheduler when enqueue drops packets net/sched: sch_cake: Fix incorrect qlen reduction in cake_drop wireguard: netlink: generate netlink code wireguard: uapi: generate header with ynl-gen wireguard: uapi: move flag enums wireguard: uapi: move enum wg_cmd wireguard: netlink: add YNL specification selftests: drv-net: Fix tolerance calculation in devlink_rate_tc_bw.py selftests: drv-net: Fix and clarify TC bandwidth split in devlink_rate_tc_bw.py selftests: drv-net: Set shell=True for sysfs writes in devlink_rate_tc_bw.py selftests: drv-net: Use Iperf3Runner in devlink_rate_tc_bw.py selftests: drv-net: introduce Iperf3Runner for measurement use cases selftests: drv-net: Add devlink_rate_tc_bw.py to TEST_PROGS net: ps3_gelic_net: Use napi_alloc_skb() and napi_gro_receive() Documentation: net: dsa: mention simple HSR offload helpers Documentation: net: dsa: mention availability of RedBox ...
2025-12-02Merge tag 'libcrypto-at-least-for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/ebiggers/linux Pull 'at_least' array size update from Eric Biggers: "C supports lower bounds on the sizes of array parameters, using the static keyword as follows: 'void f(int a[static 32]);'. This allows the compiler to warn about a too-small array being passed. As discussed, this reuse of the 'static' keyword, while standard, is a bit obscure. Therefore, add an alias 'at_least' to compiler_types.h. Then, add this 'at_least' annotation to the array parameters of various crypto library functions" * tag 'libcrypto-at-least-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiggers/linux: lib/crypto: sha2: Add at_least decoration to fixed-size array params lib/crypto: sha1: Add at_least decoration to fixed-size array params lib/crypto: poly1305: Add at_least decoration to fixed-size array params lib/crypto: md5: Add at_least decoration to fixed-size array params lib/crypto: curve25519: Add at_least decoration to fixed-size array params lib/crypto: chacha: Add at_least decoration to fixed-size array params lib/crypto: chacha20poly1305: Statically check fixed array lengths compiler_types: introduce at_least parameter decoration pseudo keyword wifi: iwlwifi: trans: rename at_least variable to min_mode
2025-11-28Merge tag 'wireless-next-2025-11-27' of ↵Jakub Kicinski
https://git.kernel.org/pub/scm/linux/kernel/git/wireless/wireless-next Johannes Berg says: ==================== Apart from the usual small things just driver updates: - mt76: - WED support for >32-bit DMA - airoha NPU support - regdomain improvements - continued WiFi7/MLO work - rtw89 - support USB devices RTL8852AU and RTL8852CU - initial work for RTL8922DE - improved injection support - rtl8xxxu: 40 MHz connection fixes/support - brcmfmac: Acer A1 840 tablet quirk * tag 'wireless-next-2025-11-27' of https://git.kernel.org/pub/scm/linux/kernel/git/wireless/wireless-next: (152 commits) wifi: mac80211: allow sharing identical chanctx for S1G interfaces wifi: nl80211: vendor-cmd: intel: fix a blank kernel-doc line warning wifi: cfg80211: include s1g_primary_2mhz when comparing chandefs wifi: cfg80211: include s1g_primary_2mhz when sending chandef wifi: ieee80211: correct FILS status codes mt76: mt7615: Fix memory leak in mt7615_mcu_wtbl_sta_add() wifi: mt76: mt792x: fix wifi init fail by setting MCU_RUNNING after CLC load wifi: mt76: Strip whitespace from build ddate wifi: mt76: mt7996: Add missing locking in mt7996_mac_sta_rc_work() wifi: mt76: mt7996: skip ieee80211_iter_keys() on scanning link remove wifi: mt76: mt7996: skip deflink accounting for offchannel links wifi: mt76: Move mt76_abort_scan out of mt76_reset_device() wifi: mt76: mt7996: move mt7996_update_beacons under mt76 mutex wifi: mt76: mt7996: grab mt76 mutex in mt7996_mac_sta_event() wifi: mt76: mt7925: ensure the 6GHz A-MPDU density cap from the hardware. wifi: mt76: mt7996: fix EMI rings for RRO wifi: mt76: mt7996: fix using wrong phy to start in mt7996_mac_restart() wifi: mt76: mt7996: fix MLO set key and group key issues wifi: mt76: mt7996: fix MLD group index assignment wifi: mt76: mt7996: use correct link_id when filling TXD and TXP ... ==================== Link: https://patch.msgid.link/20251127103806.17776-3-johannes@sipsolutions.net Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-11-24mt76: mt7615: Fix memory leak in mt7615_mcu_wtbl_sta_add()Zilin Guan
In mt7615_mcu_wtbl_sta_add(), an skb sskb is allocated. If the subsequent call to mt76_connac_mcu_alloc_wtbl_req() fails, the function returns an error without freeing sskb, leading to a memory leak. Fix this by calling dev_kfree_skb() on sskb in the error handling path to ensure it is properly released. Fixes: 99c457d902cf9 ("mt76: mt7615: move mt7615_mcu_set_bmc to mt7615_mcu_ops") Signed-off-by: Zilin Guan <zilin@seu.edu.cn> Acked-by: Lorenzo Bianconi <lorenzo@kernel.org> Link: https://patch.msgid.link/20251113062415.103611-1-zilin@seu.edu.cn Signed-off-by: Felix Fietkau <nbd@nbd.name>
2025-11-24wifi: mt76: mt792x: fix wifi init fail by setting MCU_RUNNING after CLC loadQuan Zhou
Set the MT76_STATE_MCU_RUNNING bit only after mt7921_load_clc() has successfully completed. Previously, the MCU_RUNNING state was set before loading CLC, which could cause conflict between chip mcu_init retry and mac_reset flow, result in chip init fail and chip abnormal status. By moving the state set after CLC load, firmware initialization becomes robust and resolves init fail issue. Signed-off-by: Quan Zhou <quan.zhou@mediatek.com> Reviewed-by: druth@chromium.org Link: https://patch.msgid.link/19ec8e4465142e774f17801025accd0ae2214092.1763465933.git.quan.zhou@mediatek.com Signed-off-by: Felix Fietkau <nbd@nbd.name>
2025-11-24wifi: mt76: Strip whitespace from build ddateMario Limonciello (AMD)
On systems I have with mt7925 cards I've been noticing a blank line in my kernel logs. IE: ``` [ 17.294105] mt7925e 0000:c3:00.0: HW/SW Version: 0x8a108a10, Build Time: 20250721232852a [ 17.314233] r8169 0000:c4:00.0 enp196s0f0: Link is Down ``` This is because the build_date from the header has a newline character as does the dev_info() print. As the firmware isn't guaranteed to always have a newline but the print is, copy the firmware build date to a temporary variable and strip any whitespace from it before showing it in the logs. Signed-off-by: Mario Limonciello (AMD) <superm1@kernel.org> Link: https://patch.msgid.link/20251120155829.3494747-1-superm1@kernel.org Signed-off-by: Felix Fietkau <nbd@nbd.name>
2025-11-24wifi: mt76: mt7996: Add missing locking in mt7996_mac_sta_rc_work()Lorenzo Bianconi
Grab the mt76 mutex running mt7996_mac_sta_rc_work() since it is required by mt7996_mcu_add_rate_ctrl routine. Fixes: 28d519d0d493a ("wifi: mt76: Move RCU section in mt7996_mcu_add_rate_ctrl_fixed()") Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org> Link: https://patch.msgid.link/20251118-mt7996-rc-work-missing-mtx-v1-1-0739c493a6cb@kernel.org Signed-off-by: Felix Fietkau <nbd@nbd.name>
2025-11-24wifi: mt76: mt7996: skip ieee80211_iter_keys() on scanning link removeLorenzo Bianconi
mt7996_vif_link_remove routine is executed by mt76_scan_complete() without holding the wiphy mutex triggering the following lockdep warning. WARNING: CPU: 0 PID: 72 at net/mac80211/key.c:1029 ieee80211_iter_keys+0xe4/0x1a0 [mac80211] CPU: 0 UID: 0 PID: 72 Comm: kworker/u32:2 Tainted: G S 6.18.0-rc5+ #27 PREEMPT(full) Tainted: [S]=CPU_OUT_OF_SPEC Hardware name: Default string Default string/SKYBAY, BIOS 5.12 02/15/2023 Workqueue: phy3 mt76_scan_work [mt76] RIP: 0010:ieee80211_iter_keys+0xe4/0x1a0 [mac80211] Code: 4c 48 83 c4 10 5b 5d 41 5c 41 5d 41 5e 41 5f c3 48 8b 47 48 be ff ff ff ff 48 8d 78 68 e8 b4 eb 1e e1 85 c0 0f 85 49 ff ff ff 4c 8b ab 90 1a 00 00 48 8d 83 90 RSP: 0018:ffffc900002f7cb0 EFLAGS: 00010246 RAX: 0000000000000000 RBX: ffff888127e00ee0 RCX: 0000000000000000 RDX: 0000000000000000 RSI: ffff888127e00788 RDI: ffff88811132b5c8 RBP: ffffffffa0ddf400 R08: 0000000000000001 R09: 000000009dcc1dac R10: 0000000000000001 R11: ffff88811132b5a0 R12: ffffc900002f7d00 R13: ffff8882581e6a80 R14: ffff888127e0afc8 R15: ffff888158832038 FS: 0000000000000000(0000) GS:ffff8884da486000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000030a0fd90 CR3: 0000000002c52004 CR4: 00000000003706f0 Call Trace: <TASK> ? lock_acquire+0xc2/0x2c0 mt7996_vif_link_remove+0x64/0x2b0 [mt7996e] mt76_put_vif_phy_link+0x41/0x50 [mt76] mt76_scan_complete+0x77/0x100 [mt76] mt76_scan_work+0x2eb/0x3f0 [mt76] ? process_one_work+0x1e5/0x6d0 process_one_work+0x221/0x6d0 worker_thread+0x19a/0x340 ? rescuer_thread+0x450/0x450 kthread+0x108/0x220 ? kthreads_online_cpu+0x110/0x110 ret_from_fork+0x1c6/0x220 ? kthreads_online_cpu+0x110/0x110 ret_from_fork_asm+0x11/0x20 </TASK> irq event stamp: 45471 hardirqs last enabled at (45477): [<ffffffff813d446e>] __up_console_sem+0x5e/0x70 hardirqs last disabled at (45482): [<ffffffff813d4453>] __up_console_sem+0x43/0x70 softirqs last enabled at (44500): [<ffffffff81f2ae0c>] napi_pp_put_page+0xac/0xd0 softirqs last disabled at (44498): [<ffffffff81fa32a0>] page_pool_put_unrefed_netmem+0x290/0x3d0 ---[ end trace 0000000000000000 ]--- Fix the issue skipping ieee80211_iter_keys() for scanning links in mt7996_vif_link_remove routine since we have not uploaded any hw keys for these links. Fixes: 04414d7bba78 ("wifi: mt76: mt7996: delete vif keys when requested") Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org> Tested-by: Ben Greear <greearb@candelatech.com> Link: https://patch.msgid.link/20251115-mt7996-key-iter-link-remove-fix-v1-1-4f3f4e1eaa78@kernel.org Signed-off-by: Felix Fietkau <nbd@nbd.name>
2025-11-24wifi: mt76: mt7996: skip deflink accounting for offchannel linksLorenzo Bianconi
Do not take into account offchannel links for deflink accounting. Fixes: a3316d2fc669f ("wifi: mt76: mt7996: set vif default link_id adding/removing vif links") Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org> Tested-by: Ben Greear <greearb@candelatech.com> Link: https://patch.msgid.link/20251114-mt76-fix-missing-mtx-v1-4-259ebf11f654@kernel.org Signed-off-by: Felix Fietkau <nbd@nbd.name>
2025-11-24wifi: mt76: Move mt76_abort_scan out of mt76_reset_device()Lorenzo Bianconi
Move mt76_abort_scan routine out of mt76_reset_device() in order to avoid a possible deadlock since mt76_reset_device routine is running with mt76 mutex help and mt76_abort_scan_complete() can grab mt76 mutex in some cases. Fixes: b36d55610215a ("wifi: mt76: abort scan/roc on hw restart") Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org> Tested-by: Ben Greear <greearb@candelatech.com> Link: https://patch.msgid.link/20251114-mt76-fix-missing-mtx-v1-3-259ebf11f654@kernel.org Signed-off-by: Felix Fietkau <nbd@nbd.name>
2025-11-24wifi: mt76: mt7996: move mt7996_update_beacons under mt76 mutexLorenzo Bianconi
Move mt7996_update_beacons routine inside mt76 mutex critical section in mt7996_mac_reset_work() in order to run mt7996_vif_conf_link() in mt7996_mcu_add_beacon routine. Fixes: f30906c55a400 ("wifi: mt76: mt7996: disable beacons when going offchannel") Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org> Tested-by: Ben Greear <greearb@candelatech.com> Link: https://patch.msgid.link/20251114-mt76-fix-missing-mtx-v1-2-259ebf11f654@kernel.org Signed-off-by: Felix Fietkau <nbd@nbd.name>
2025-11-24wifi: mt76: mt7996: grab mt76 mutex in mt7996_mac_sta_event()Lorenzo Bianconi
Grab mt76 mutex in mt7996_mac_sta_event routine in order to rely on mt76_dereference() utility macro. Fixes: ecd72f9695e7e ("wifi: mt76: mt7996: Support MLO in mt7996_mac_sta_event()") Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org> Tested-by: Ben Greear <greearb@candelatech.com> Link: https://patch.msgid.link/20251114-mt76-fix-missing-mtx-v1-1-259ebf11f654@kernel.org Signed-off-by: Felix Fietkau <nbd@nbd.name>
2025-11-24wifi: mt76: mt7925: ensure the 6GHz A-MPDU density cap from the hardware.Michael Lo
Set the 6GHz HE A-MPDU density from the hardware capability instead of a hardcoded value, ensuring accurate capability reporting. Signed-off-by: Michael Lo <michael.lo@mediatek.com> Signed-off-by: Ming Yen Hsieh <mingyen.hsieh@mediatek.com> Link: https://patch.msgid.link/20251106092151.1061648-1-mingyen.hsieh@mediatek.com Signed-off-by: Felix Fietkau <nbd@nbd.name>
2025-11-24wifi: mt76: mt7996: fix EMI rings for RROShayne Chen
The RRO EMI rings only need to be allocated when WED is not active. This patch fixes command timeout issue for the setting of WED off and RRO on. Fixes: 3a29164425e9 ("wifi: mt76: mt7996: Add SW path for HW-RRO v3.1") Co-developed-by: Rex Lu <rex.lu@mediatek.com> Signed-off-by: Rex Lu <rex.lu@mediatek.com> Signed-off-by: Shayne Chen <shayne.chen@mediatek.com> Acked-by: Lorenzo Bianconi <lorenzo@kernel.org> Link: https://patch.msgid.link/20251106064203.1000505-12-shayne.chen@mediatek.com Signed-off-by: Felix Fietkau <nbd@nbd.name>
2025-11-24wifi: mt76: mt7996: fix using wrong phy to start in mt7996_mac_restart()Shayne Chen
Pass the correct mt7996_phy to mt7996_run(). Fixes: 0a5df0ec47f7 ("wifi: mt76: mt7996: remove redundant per-phy mac80211 calls during restart") Signed-off-by: Shayne Chen <shayne.chen@mediatek.com> Acked-by: Lorenzo Bianconi <lorenzo@kernel.org> Link: https://patch.msgid.link/20251106064203.1000505-11-shayne.chen@mediatek.com Signed-off-by: Felix Fietkau <nbd@nbd.name>
2025-11-24wifi: mt76: mt7996: fix MLO set key and group key issuesShayne Chen
This patch fixes the following key issues: - Pass correct link BSS to mt7996_mcu_add_key(), and use HW beacon protection mode for mt7990 chipset - Do not do group key deletion for GTK and IGTK due to FW design, the delete key command will delete all group keys of a link BSS - For deleting BIGTK, FW adds a new flow, but the "sec->add" field should be filled with "SET_KEY". Note that if BIGTK is not deleted, it will cause beacon decryption issue when switching from an AP interface to a station interface Fixes: 0c45d52276fd ("wifi: mt76: mt7996: fix setting beacon protection keys") Co-developed-by: Allen Ye <allen.ye@mediatek.com> Signed-off-by: Allen Ye <allen.ye@mediatek.com> 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/20251106064203.1000505-10-shayne.chen@mediatek.com Signed-off-by: Felix Fietkau <nbd@nbd.name>
2025-11-24wifi: mt76: mt7996: fix MLD group index assignmentShayne Chen
Fix extender mode and MBSS issues caused by incorrect assignment of the MLD group and remap indices. Fixes: ed01c310eca9 ("wifi: mt76: mt7996: Fix mt7996_mcu_bss_mld_tlv routine") Signed-off-by: Shayne Chen <shayne.chen@mediatek.com> Acked-by: Lorenzo Bianconi <lorenzo@kernel.org> Link: https://patch.msgid.link/20251106064203.1000505-9-shayne.chen@mediatek.com Signed-off-by: Felix Fietkau <nbd@nbd.name>
2025-11-24wifi: mt76: mt7996: use correct link_id when filling TXD and TXPShayne Chen
Obtain the correct link ID and, if needed, switch to the corresponding wcid before populating the TX descriptor and TX payload. Rules for link id: - For QoS data of MLD peers (excluding EAPOL), select the primary or secondary wcid based on whether the TID is odd or even to meet FW/HW requirements - For other packets, use IEEE80211_TX_CTRL_MLO_LINK if specified (such as multicast and broadcast packets) Signed-off-by: Shayne Chen <shayne.chen@mediatek.com> Acked-by: Lorenzo Bianconi <lorenzo@kernel.org> Link: https://patch.msgid.link/20251106064203.1000505-8-shayne.chen@mediatek.com Signed-off-by: Felix Fietkau <nbd@nbd.name>
2025-11-24wifi: mt76: mt7996: set link_valid field when initializing wcidShayne Chen
This ensures the upper layer uses the correct link ID during packet processing. Fixes: dd82a9e02c05 ("wifi: mt76: mt7996: Rely on mt7996_sta_link in sta_add/sta_remove callbacks") Signed-off-by: Shayne Chen <shayne.chen@mediatek.com> Acked-by: Lorenzo Bianconi <lorenzo@kernel.org> Link: https://patch.msgid.link/20251106064203.1000505-7-shayne.chen@mediatek.com Signed-off-by: Felix Fietkau <nbd@nbd.name>
2025-11-24wifi: mt76: mt7996: fix teardown command for an MLD peerShayne Chen
For an MLD peer, we only need to call the teardown command when removing the last link, and there's no need to call mt7996_mcu_add_sta() for the earlier links. Fixes: c1d6dd5d03eb ("wifi: mt76: mt7996: Add mt7996_mcu_teardown_mld_sta rouine") Signed-off-by: Shayne Chen <shayne.chen@mediatek.com> Acked-by: Lorenzo Bianconi <lorenzo@kernel.org> Link: https://patch.msgid.link/20251106064203.1000505-6-shayne.chen@mediatek.com Signed-off-by: Felix Fietkau <nbd@nbd.name>
2025-11-24wifi: mt76: mt7996: fix several fields in mt7996_mcu_bss_basic_tlv()Shayne Chen
Fix several fields in mt7996_mcu_bss_basic_tlv() that were not obtained from the correct link. Without this patch, the MLD station interface does not function properly. Fixes: 34a41bfbcb71 ("wifi: mt76: mt7996: prepare mt7996_mcu_add_dev/bss_info for MLO support") Signed-off-by: Shayne Chen <shayne.chen@mediatek.com> Acked-by: Lorenzo Bianconi <lorenzo@kernel.org> Link: https://patch.msgid.link/20251106064203.1000505-5-shayne.chen@mediatek.com Signed-off-by: Felix Fietkau <nbd@nbd.name>
2025-11-24wifi: mt76: mt7996: support fixed rate for link stationShayne Chen
Introduce mt7996_link_sta_add_debugfs() to extend fixed rate support for MLO link station. Co-developed-by: Howard Hsu <howard-yh.hsu@mediatek.com> Signed-off-by: Howard Hsu <howard-yh.hsu@mediatek.com> Signed-off-by: Shayne Chen <shayne.chen@mediatek.com> Link: https://patch.msgid.link/20251106064203.1000505-4-shayne.chen@mediatek.com Signed-off-by: Felix Fietkau <nbd@nbd.name>
2025-11-24wifi: mt76: mt7996: fix implicit beamforming support for mt7992Howard Hsu
Fix the ibf_timeout field for mt7996, mt7992 and mt7990 chipsets. For the mt7992, this value shall be set as 0xff, while the others shall be set as 0x18. Fixes: ad4c9a8a9803 ("wifi: mt76: mt7996: add implicit beamforming support for mt7992") Signed-off-by: Howard Hsu <howard-yh.hsu@mediatek.com> Signed-off-by: Shayne Chen <shayne.chen@mediatek.com> Link: https://patch.msgid.link/20251106064203.1000505-3-shayne.chen@mediatek.com Signed-off-by: Felix Fietkau <nbd@nbd.name>
2025-11-24wifi: mt76: mt7996: no need to wait ACK event for SDO commandPeter Chiu
For the SDO unified command, driver does not need to wait for ACK event so do not mark MCU_CMD_ACK in command header. Signed-off-by: Peter Chiu <chui-hao.chiu@mediatek.com> Signed-off-by: Shayne Chen <shayne.chen@mediatek.com> Link: https://patch.msgid.link/20251106064203.1000505-2-shayne.chen@mediatek.com Signed-off-by: Felix Fietkau <nbd@nbd.name>
2025-11-24wifi: mt76: mt7996: fix max nss value when getting rx chainmaskStanleyYP Wang
Since wiphy->available_antennas_tx now accumulates the chainmask of all the radios of a wiphy, use phy->orig_antenna_mask to get the original max nss for comparison. Fixes: 69d54ce7491d ("wifi: mt76: mt7996: switch to single multi-radio wiphy") Signed-off-by: StanleyYP Wang <StanleyYP.Wang@mediatek.com> Signed-off-by: Shayne Chen <shayne.chen@mediatek.com> Link: https://patch.msgid.link/20251106064203.1000505-1-shayne.chen@mediatek.com Signed-off-by: Felix Fietkau <nbd@nbd.name>
2025-11-24wifi: mt76: mt7925: cqm rssi low/high event notifyJack Kao
The implementation amounts to setting the driver flag IEEE80211_VIF_SUPPORTS_CQM_RSSI, and then providing mechanisms for continuously updating enough information to be able to provide notifications to userspace when RSSI drops below a certain threshold Signed-off-by: Jack Kao <jack.kao@mediatek.com> Signed-off-by: Ming Yen Hsieh <mingyen.hsieh@mediatek.com> Link: https://patch.msgid.link/20251001012506.2168037-1-mingyen.hsieh@mediatek.com Signed-off-by: Felix Fietkau <nbd@nbd.name>
2025-11-24wifi: mt76: replace use of system_wq with system_percpu_wqMarco Crivellari
Currently if a user enqueue a work item using schedule_delayed_work() the used wq is "system_wq" (per-cpu wq) while queue_delayed_work() use WORK_CPU_UNBOUND (used when a cpu is not specified). The same applies to schedule_work() that is using system_wq and queue_work(), that makes use again of WORK_CPU_UNBOUND. This lack of consistentcy cannot be addressed without refactoring the API. For more details see the Link tag below. This continues the effort to refactor workqueue APIs, which began with the introduction of new workqueues and a new alloc_workqueue flag in: commit 128ea9f6ccfb ("workqueue: Add system_percpu_wq and system_dfl_wq") commit 930c2ea566af ("workqueue: Add new WQ_PERCPU flag") Switch to using system_percpu_wq because system_wq is going away as part of a workqueue restructuring. Suggested-by: Tejun Heo <tj@kernel.org> Signed-off-by: Marco Crivellari <marco.crivellari@suse.com> Link: https://patch.msgid.link/20250922093243.140946-2-marco.crivellari@suse.com Signed-off-by: Felix Fietkau <nbd@nbd.name>
2025-11-24wifi: mt76: adjust BSS conf pointer handlingFedor Pchelkin
Passing a BSS conf pointer to mt76_connac2_mac_tx_rate_val() currently has two inconsistencies. When called from mt76_connac2_mac_write_txwi(), BSS conf is got by dereferencing a vif pointer. A NULL vif isn't accounted for though the function itself supposes it to be NULL and tries to handle this case in previous checks. This looks like a cosmetic change since the drivers calling the function (namely, mt7915 and mt7921) set WANT_MONITOR_VIF flag so judging by info->control.vif initialization inside ieee80211_tx_*() routines it can't actually come as NULL here. The same holds for the BSS conf pointer handling inside mt76_connac2_mac_tx_rate_val(). It is dereferenced before being checked for NULL. The function supposes to handle the case so reorder the check and dereference of the pointer. Again, this looks like a syntax issue only. Found by Linux Verification Center (linuxtesting.org) with SVACE static analysis tool. Co-developed-by: Matvey Kovalev <matvey.kovalev@ispras.ru> Signed-off-by: Matvey Kovalev <matvey.kovalev@ispras.ru> Signed-off-by: Fedor Pchelkin <pchelkin@ispras.ru> Link: https://patch.msgid.link/20251027111843.38975-2-pchelkin@ispras.ru Signed-off-by: Felix Fietkau <nbd@nbd.name>
2025-11-24Revert "wifi: mt76: mt792x: improve monitor interface handling"Fedor Pchelkin
This reverts commit 55e95ce469d0c61041bae48b2ebb7fcbf6d1ba7f. mt792x drivers don't seem to support multi-radio devices yet. At least they don't mess with `struct wiphy_radio` at the moment. Packet capturing on monitor interface doesn't work after the blamed patch: tcpdump -i wls6mon -n -vvv Revert the NO_VIRTUAL_MONITOR feature for now to resolve the issue. Found by Linux Verification Center (linuxtesting.org). Fixes: 55e95ce469d0 ("wifi: mt76: mt792x: improve monitor interface handling") Signed-off-by: Fedor Pchelkin <pchelkin@ispras.ru> Link: https://patch.msgid.link/20251027111843.38975-1-pchelkin@ispras.ru Signed-off-by: Felix Fietkau <nbd@nbd.name>
2025-11-24wifi: mt76: mmio_*_copy fix byte order and alignmentCaleb James DeLisle
Update functions which copy to and from MMIO to load bytes as Little Endian, and also support unaligned buffers. PCI devices almost universally use Little Endian ordering for MMIO registers, mt76 is no exception. PCI hardware that is designed to work with Big Endian CPUs often (but not always) "helps" by transparently byte-swapping MMIO reads and writes on the wire. If this is enabled then it cannot be turned off for a single write. On hardware which does not support this, writel() does the swap in software. When we are transferring arbitrary bytes to MMIO space, we need them to arrive in the same order they were in memory, so when the hardware swaps them this is a problem. Rather than care about how our PCI host controller works, we instead load bytes as Little Endian - so on a Big Endian machine this will reverse them, then we use writel() which will put them back in the right order again. This way we do not make it our business whether the swapping is done in software or hardware. Furthermore, inspection of the code shows that these functions are often called with stack-allocated u8 arrays which have no alignment guarantees so we now use (get|put)_unaligned_le32(). Fixes this issue: mt76x2e 0000:02:00.0: ROM patch build: 20141115060606a mt76x2e 0000:02:00.0: Firmware Version: 0.0.00 mt76x2e 0000:02:00.0: Build: 1 mt76x2e 0000:02:00.0: Build Time: 201607111443____ mt76x2e 0000:02:00.0: Firmware failed to start mt76x2e 0000:02:00.0: probe with driver mt76x2e failed with error -145 Tested on: SmartFiber XP8421-B (Big Endian MIPS 34Kc) - MT7612 -> 5g / ap / psk2 - MT7603 -> 2g / sta / psk2 - MT7603 -> 2g / ap / psk2 TpLink Archer v1200v-v2 (Big Endian MIPS 34Kc) - MT7613 -> 5g / ap / psk2 - MT7603 -> 2g / sta / psk2 Signed-off-by: Caleb James DeLisle <cjd@cjdns.fr> Link: https://patch.msgid.link/20251029184143.3991388-1-cjd@cjdns.fr Signed-off-by: Felix Fietkau <nbd@nbd.name>
2025-11-24wifi: mt76: mt7925: disable auto regd changes after user setMing Yen Hsieh
Add regd_user flag to block automatic regulatory domain updates if set by user. Signed-off-by: Ming Yen Hsieh <mingyen.hsieh@mediatek.com> Link: https://patch.msgid.link/20251031090352.1400079-7-mingyen.hsieh@mediatek.com Signed-off-by: Felix Fietkau <nbd@nbd.name>
2025-11-24wifi: mt76: mt7925: add auto regdomain switch supportMing Yen Hsieh
Implement 802.11d-based automatic regulatory domain switching to dynamically determine the regulatory domain at runtime. Signed-off-by: Ming Yen Hsieh <mingyen.hsieh@mediatek.com> Link: https://patch.msgid.link/20251031090352.1400079-6-mingyen.hsieh@mediatek.com Signed-off-by: Felix Fietkau <nbd@nbd.name>
2025-11-24wifi: mt76: mt7925: improve EHT capability control in regulatory flowMing Yen Hsieh
Move EHT flag handling into mt7925_regd_channel_update() to ensure correct channel capability reporting. Signed-off-by: Ming Yen Hsieh <mingyen.hsieh@mediatek.com> Link: https://patch.msgid.link/20251031090352.1400079-5-mingyen.hsieh@mediatek.com Signed-off-by: Felix Fietkau <nbd@nbd.name>
2025-11-24wifi: mt76: mt7925: refactor regulatory notifier flowMing Yen Hsieh
Rename mt7925_regd_update() to mt7925_mcu_regd_update() to centralize regd updates with error handling. Signed-off-by: Ming Yen Hsieh <mingyen.hsieh@mediatek.com> Link: https://patch.msgid.link/20251031090352.1400079-4-mingyen.hsieh@mediatek.com Signed-off-by: Felix Fietkau <nbd@nbd.name>
2025-11-24wifi: mt76: mt7925: refactor CLC support check flowMing Yen Hsieh
Move the disable_clc module parameter to regd.c and introduce mt7925_regd_clc_supported() to centralize CLC support checks. Signed-off-by: Ming Yen Hsieh <mingyen.hsieh@mediatek.com> Link: https://patch.msgid.link/20251031090352.1400079-3-mingyen.hsieh@mediatek.com Signed-off-by: Felix Fietkau <nbd@nbd.name>
2025-11-24wifi: mt76: mt7925: refactor regulatory domain handling to regd.[ch]Ming Yen Hsieh
Move regd logic to regd.c and regd.h files Signed-off-by: Ming Yen Hsieh <mingyen.hsieh@mediatek.com> Link: https://patch.msgid.link/20251031090352.1400079-2-mingyen.hsieh@mediatek.com Signed-off-by: Felix Fietkau <nbd@nbd.name>
2025-11-24wifi: mt76: Use of_reserved_mem_region_to_resource() for "memory-region"Rob Herring (Arm)
Use the newly added of_reserved_mem_region_to_resource() function to handle "memory-region" properties. Signed-off-by: Rob Herring (Arm) <robh@kernel.org> Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com> Link: https://patch.msgid.link/20251031175113.1453100-1-robh@kernel.org Signed-off-by: Felix Fietkau <nbd@nbd.name>
2025-11-24wifi: mt76: mt7996: fix typos in commentsAlok Tiwari
Fix two minor comment typos in the mt7996 driver: - "Tx/Tx" -> "Rx/Tx" - "tnterrupt" -> "interrupt" Signed-off-by: Alok Tiwari <alok.a.tiwari@oracle.com> Link: https://patch.msgid.link/20251021064812.1778297-1-alok.a.tiwari@oracle.com Signed-off-by: Felix Fietkau <nbd@nbd.name>
2025-11-24wifi: mt76: mt7996: Add NPU offload support to MT7996 driverLorenzo Bianconi
Introduce Airoha NPU support to MT7996 driver. NPU is used to enable traffic forward offloading between the MT76 NIC and the Airoha ethernet one available on the Airoha EN7581 SoC using Netfilter Flowtable APIs. Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org> Link: https://patch.msgid.link/20251017-mt76-npu-devel-v2-5-ddaa90901723@kernel.org Signed-off-by: Felix Fietkau <nbd@nbd.name>
2025-11-24wifi: mt76: Introduce the NPU generic layerLorenzo Bianconi
Add the NPU generic layer in mt76 module. NPU will be used to enable traffic forward offloading between the MT76 NIC and the Airoha ethernet one available on the Airoha EN7581 SoC using Netfilter Flowtable APIs. Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org> Link: https://patch.msgid.link/20251017-mt76-npu-devel-v2-4-ddaa90901723@kernel.org Signed-off-by: Felix Fietkau <nbd@nbd.name>
2025-11-24wifi: mt76: Add the capability to set TX token start IDLorenzo Bianconi
This is a preliminary patch to enable traffic forward offloading via the Airoha NPU module available on the Airoha EN7581 SoC. Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org> Link: https://patch.msgid.link/20251017-mt76-npu-devel-v2-3-ddaa90901723@kernel.org Signed-off-by: Felix Fietkau <nbd@nbd.name>
2025-11-24wifi: mt76: Add mt76_dev pointer in mt76_queue struct.Lorenzo Bianconi
This is a preliminary patch to enable traffic forward offloading via the Airoha NPU module available on the Airoha EN7581 SoC. Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org> Link: https://patch.msgid.link/20251017-mt76-npu-devel-v2-2-ddaa90901723@kernel.org Signed-off-by: Felix Fietkau <nbd@nbd.name>
generated by cgit (git 2.34.1) at 2026-01-01 16:09:13 +0000