linux-stable.git/drivers/net/wireless/mediatek, branch linux-6.13.y

wifi: mt76: mt7925: fix the wrong simultaneous cap for MLO

2025-04-20T08:18:07+00:00

commit 7dcea6fe33ee3d7cbb65baee0dd7adc76d1c9ddc upstream.

The mt7925 chip is only support a single radio, so the maximum
number of simultaneous should be 0.

Fixes: 86c051f2c418 ("wifi: mt76: mt7925: enabling MLO when the firmware supports it")
Cc: stable@vger.kernel.org
Co-developed-by: Sean Wang 
Signed-off-by: Sean Wang 
Tested-by: Caleb Jorden 
Signed-off-by: Ming Yen Hsieh 
Link: https://patch.msgid.link/20250305000851.493671-3-sean.wang@kernel.org
Signed-off-by: Felix Fietkau 
Signed-off-by: Greg Kroah-Hartman

wifi: mt76: mt7925: fix the wrong link_idx when a p2p_device is present

2025-04-20T08:18:06+00:00

commit 4bada9b0a29c185d45cc9512509edd6069fbfa79 upstream.

When the p2p device and MLO station are running concurrently, the p2p device
will occupy the wrong link_idx when the MLO secondary link is added.

Fixes: 9e4c3a007f01 ("wifi: mt76: connac: Extend mt76_connac_mcu_uni_add_dev for MLO")
Cc: stable@vger.kernel.org
Co-developed-by: Sean Wang 
Signed-off-by: Sean Wang 
Tested-by: Caleb Jorden 
Signed-off-by: Ming Yen Hsieh 
Link: https://patch.msgid.link/20250305000851.493671-2-sean.wang@kernel.org
Signed-off-by: Felix Fietkau 
Signed-off-by: Greg Kroah-Hartman

wifi: mt76: mt7925: fix country count limitation for CLC

2025-04-20T08:18:06+00:00

commit 6458d760a0c0afd2fda11e83ed3e1125a252432f upstream.

Due to the increase in the number of power tables for 6Ghz on CLC,
the variable nr_country is no longer sufficient to represent the
total quantity. Therefore, we have switched to calculating the
length of clc buf to obtain the correct power table.

Cc: stable@vger.kernel.org
Fixes: c948b5da6bbe ("wifi: mt76: mt7925: add Mediatek Wi-Fi7 driver for mt7925 chips")
Signed-off-by: Ming Yen Hsieh 
Link: https://patch.msgid.link/20250116062131.3860198-1-mingyen.hsieh@mediatek.com
Signed-off-by: Felix Fietkau 
Signed-off-by: Greg Kroah-Hartman

wifi: mt76: mt7925: ensure wow pattern command align fw format

2025-04-20T08:18:06+00:00

commit 8ae45b1f699bbc27ea8647093f794f671e77410b upstream.

Align the format of "struct mt7925_wow_pattern_tlv" with
firmware to ensure proper functionality.

Cc: stable@vger.kernel.org
Fixes: c948b5da6bbe ("wifi: mt76: mt7925: add Mediatek Wi-Fi7 driver for mt7925 chips")
Signed-off-by: Ming Yen Hsieh 
Link: https://patch.msgid.link/20250116055925.3856856-1-mingyen.hsieh@mediatek.com
Signed-off-by: Felix Fietkau 
Signed-off-by: Greg Kroah-Hartman

wifi: mt76: Add check for devm_kstrdup()

2025-04-20T08:18:06+00:00

commit 4bc1da524b502999da28d287de4286c986a1af57 upstream.

Add check for the return value of devm_kstrdup() in
mt76_get_of_data_from_mtd() to catch potential exception.

Fixes: e7a6a044f9b9 ("mt76: testmode: move mtd part to mt76_dev")
Cc: stable@vger.kernel.org
Signed-off-by: Haoxiang Li 
Link: https://patch.msgid.link/20250219033645.2594753-1-haoxiang_li2024@163.com
Signed-off-by: Felix Fietkau 
Signed-off-by: Greg Kroah-Hartman

wifi: mt76: mt76x2u: add TP-Link TL-WDN6200 ID to device table

2025-04-20T08:17:45+00:00

[ Upstream commit 06cccc2ebbe6c8a20f714f3a0ff3ff489d3004bb ]

The TP-Link TL-WDN6200 "Driverless" version cards use a MT7612U chipset.

Add the USB ID to mt76x2u driver.

Signed-off-by: Icenowy Zheng 
Link: https://patch.msgid.link/20250317102235.1421726-1-uwu@icenowy.me
Signed-off-by: Felix Fietkau 
Signed-off-by: Sasha Levin

wifi: mt76: mt7921: fix kernel panic due to null pointer dereference

2025-04-10T12:42:05+00:00

commit adc3fd2a2277b7cc0b61692463771bf9bd298036 upstream.

Address a kernel panic caused by a null pointer dereference in the
`mt792x_rx_get_wcid` function. The issue arises because the `deflink` structure
is not properly initialized with the `sta` context. This patch ensures that the
`deflink` structure is correctly linked to the `sta` context, preventing the
null pointer dereference.

 BUG: kernel NULL pointer dereference, address: 0000000000000400
 #PF: supervisor read access in kernel mode
 #PF: error_code(0x0000) - not-present page
 PGD 0 P4D 0
 Oops: Oops: 0000 [#1] PREEMPT SMP NOPTI
 CPU: 0 UID: 0 PID: 470 Comm: mt76-usb-rx phy Not tainted 6.12.13-gentoo-dist #1
 Hardware name:  /AMD HUDSON-M1, BIOS 4.6.4 11/15/2011
 RIP: 0010:mt792x_rx_get_wcid+0x48/0x140 [mt792x_lib]
 RSP: 0018:ffffa147c055fd98 EFLAGS: 00010202
 RAX: 0000000000000000 RBX: ffff8e9ecb652000 RCX: 0000000000000000
 RDX: 0000000000000000 RSI: 0000000000000001 RDI: ffff8e9ecb652000
 RBP: 0000000000000685 R08: ffff8e9ec6570000 R09: 0000000000000000
 R10: ffff8e9ecd2ca000 R11: ffff8e9f22a217c0 R12: 0000000038010119
 R13: 0000000080843801 R14: ffff8e9ec6570000 R15: ffff8e9ecb652000
 FS:  0000000000000000(0000) GS:ffff8e9f22a00000(0000) knlGS:0000000000000000
 CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
 CR2: 0000000000000400 CR3: 000000000d2ea000 CR4: 00000000000006f0
 Call Trace:
  
  ? __die_body.cold+0x19/0x27
  ? page_fault_oops+0x15a/0x2f0
  ? search_module_extables+0x19/0x60
  ? search_bpf_extables+0x5f/0x80
  ? exc_page_fault+0x7e/0x180
  ? asm_exc_page_fault+0x26/0x30
  ? mt792x_rx_get_wcid+0x48/0x140 [mt792x_lib]
  mt7921_queue_rx_skb+0x1c6/0xaa0 [mt7921_common]
  mt76u_alloc_queues+0x784/0x810 [mt76_usb]
  ? __pfx___mt76_worker_fn+0x10/0x10 [mt76]
  __mt76_worker_fn+0x4f/0x80 [mt76]
  kthread+0xd2/0x100
  ? __pfx_kthread+0x10/0x10
  ret_from_fork+0x34/0x50
  ? __pfx_kthread+0x10/0x10
  ret_from_fork_asm+0x1a/0x30
  
 ---[ end trace 0000000000000000 ]---

Reported-by: Nick Morrow 
Closes: https://github.com/morrownr/USB-WiFi/issues/577
Cc: stable@vger.kernel.org
Fixes: 90c10286b176 ("wifi: mt76: mt7925: Update mt792x_rx_get_wcid for per-link STA")
Signed-off-by: Ming Yen Hsieh 
Tested-by: Salah Coronya 
Link: https://patch.msgid.link/20250218033343.1999648-1-mingyen.hsieh@mediatek.com
Signed-off-by: Felix Fietkau 
Signed-off-by: Greg Kroah-Hartman

wifi: mt76: mt7925: remove unused acpi function for clc

2025-04-10T12:42:03+00:00

commit b4ea6fdfc08375aae59c7e7059653b9877171fe4 upstream.

The code for handling ACPI configuration in CLC was copied from the mt7921
driver but is not utilized in the mt7925 implementation. So removes the
unused functionality to clean up the codebase.

Cc: stable@vger.kernel.org
Fixes: c948b5da6bbe ("wifi: mt76: mt7925: add Mediatek Wi-Fi7 driver for mt7925 chips")
Signed-off-by: Ming Yen Hsieh 
Link: https://patch.msgid.link/20250304113649.867387-4-mingyen.hsieh@mediatek.com
Signed-off-by: Felix Fietkau 
Signed-off-by: Greg Kroah-Hartman

wifi: mt76: mt7915: add module param to select 5 GHz or 6 GHz on MT7916

2025-02-17T10:36:27+00:00

commit 57af267d2b8f5d88485c6372761386d79c5e6a1a upstream.

Due to a limitation in available memory, the MT7916 firmware can only
handle either 5 GHz or 6 GHz at a time. It does not support runtime
switching without a full restart.

On older firmware, this accidentally worked to some degree due to missing
checks, but couldn't be supported properly, because it left the 6 GHz
channels uncalibrated.
Newer firmware refuses to start on either band if the passed EEPROM
data indicates support for both.

Deal with this limitation by using a module parameter to specify the
preferred band in case both are supported.

Fixes: b4d093e321bd ("mt76: mt7915: add 6 GHz support")
Cc: stable@vger.kernel.org
Signed-off-by: Shayne Chen 
Link: https://patch.msgid.link/20241010083816.51880-1-nbd@nbd.name
Signed-off-by: Felix Fietkau 
Signed-off-by: Greg Kroah-Hartman

wifi: mt76: mt7921u: Add VID/PID for TP-Link TXE50UH

2025-02-17T10:36:26+00:00

commit 47d9a8ba1d7f31c674b6936b3c34ee934aa9b420 upstream.

Add VID/PID 35bc/0107 for recently released TP-Link TXE50UH USB WiFi adapter.

Tested-by: Shang Chieh Tseng 
Signed-off-by: Nick Morrow 
Cc: stable@vger.kernel.org
Link: https://patch.msgid.link/e797f105-9ca8-41e9-96de-7d25dec09943@gmail.com
Signed-off-by: Felix Fietkau 
Signed-off-by: Greg Kroah-Hartman