kernel/drivers/net/wireless/mediatek/mt76/util.c, branch linux-rolling-stable

wifi: mt76: relicense to BSD-3-Clause-Clear

2025-11-24T13:37:54Z

MediaTek has asked to switch from the ISC license to BSD-3-Clause-Clear, in order to improve clarity and the legal integrity of the code. The BSD-3-Clause license includes the "no endorsement" clause, which is important for protecting the reputation of the original authors and contributors by preventing unauthorized use of their names for endorsement purposes. This clause is absent in the BSD-2-Clause license, which is more permissive but lacks this specific protection. This change also cleans up the license of some Kconfig/Makefile files, which were accidentally marked as GPL. The GPL 2.0 remains in use on mt76x0, as well as two source files in mt7615 for which the license situation still needs to be clarified. Link: https://patch.msgid.link/20251008104250.46292-2-nbd@nbd.name Signed-off-by: Felix Fietkau

wifi: mt76: add a wrapper for wcid access with validation

2025-07-07T16:02:26Z

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

wifi: mt76: remove dev->wcid_phy_mask

2025-01-14T12:42:28Z

Explicitly check wcid->phy_idx instead. Reduces allocated data size. Link: https://patch.msgid.link/20250102163508.52945-8-nbd@nbd.name Signed-off-by: Felix Fietkau

wifi: fill in MODULE_DESCRIPTION()s for mt76 drivers

2024-01-31T16:32:33Z

W=1 builds now warn if module is built without a MODULE_DESCRIPTION(). Add descriptions to the MediaTek mt76 drivers. Here is a sorted list of descriptions. It might make the reviewing process easier. MODULE_DESCRIPTION("MediaTek MT7603E and MT76x8 wireless driver"); MODULE_DESCRIPTION("MediaTek MT7615E and MT7663E wireless driver"); MODULE_DESCRIPTION("MediaTek MT7615E MMIO helpers"); MODULE_DESCRIPTION("MediaTek MT7663 SDIO/USB helpers"); MODULE_DESCRIPTION("MediaTek MT7663S (SDIO) wireless driver"); MODULE_DESCRIPTION("MediaTek MT7663U (USB) wireless driver"); MODULE_DESCRIPTION("MediaTek MT76x02 helpers"); MODULE_DESCRIPTION("MediaTek MT76x02 MCU helpers"); MODULE_DESCRIPTION("MediaTek MT76x0E (PCIe) wireless driver"); MODULE_DESCRIPTION("MediaTek MT76x0U (USB) wireless driver"); MODULE_DESCRIPTION("MediaTek MT76x2 EEPROM helpers"); MODULE_DESCRIPTION("MediaTek MT76x2E (PCIe) wireless driver"); MODULE_DESCRIPTION("MediaTek MT76x2U (USB) wireless driver"); MODULE_DESCRIPTION("MediaTek MT76x connac layer helpers"); MODULE_DESCRIPTION("MediaTek MT76x EEPROM helpers"); MODULE_DESCRIPTION("MediaTek MT76x helpers"); MODULE_DESCRIPTION("MediaTek MT76x SDIO helpers"); MODULE_DESCRIPTION("MediaTek MT76x USB helpers"); MODULE_DESCRIPTION("MediaTek MT7915E MMIO helpers"); MODULE_DESCRIPTION("MediaTek MT7921 core driver"); MODULE_DESCRIPTION("MediaTek MT7921E (PCIe) wireless driver"); MODULE_DESCRIPTION("MediaTek MT7921S (SDIO) wireless driver"); MODULE_DESCRIPTION("MediaTek MT7921U (USB) wireless driver"); MODULE_DESCRIPTION("MediaTek MT7925 core driver"); MODULE_DESCRIPTION("MediaTek MT7925E (PCIe) wireless driver"); MODULE_DESCRIPTION("MediaTek MT7925U (USB) wireless driver"); MODULE_DESCRIPTION("MediaTek MT792x core driver"); MODULE_DESCRIPTION("MediaTek MT792x USB helpers"); MODULE_DESCRIPTION("MediaTek MT7996 MMIO helpers"); Signed-off-by: Breno Leitao Signed-off-by: Kalle Valo Link: https://msgid.link/20240130104243.3025393-10-leitao@debian.org

wifi: mt76: add flexible polling wait-interval support

2023-02-03T13:47:17Z

The default waiting unit is 10ms and the value is too much for data path related control. Provide a new API mt76_poll_msec_tick() to support different cases, such as 1ms polling waiting kick. Reviewed-by: Lorenzo Bianconi Signed-off-by: Deren Wu Signed-off-by: Felix Fietkau

mt76: add utility functions for deferring work to a kernel thread

2020-09-24T16:10:18Z

In order to avoid keeping work like tx scheduling pinned to the CPU it was scheduled from, it makes sense to switch from tasklets to kernel threads. Unlike a workqueue, this one only allows one fixed worker function to be executed by the worker thread. Because of that, there is less locking and less code for scheduling involved. This is important because the tx worker is scheduled often in a hot path Signed-off-by: Felix Fietkau

mt76: rely on register macros

2020-07-21T17:01:14Z

For consistency with the rest of the code always rely on defined macros for register access Signed-off-by: Lorenzo Bianconi Signed-off-by: Felix Fietkau

mt76: fix wcid allocation issues

2020-05-28T15:57:24Z

mt76 core uses ffs() to find the next free bit. This works well for 32 bit architectures where BITS_PER_LONG is 32. ffs only checks 32 bit values, so allocation fails on 64 bit architectures. Additionally, the wcid mask array was too small in cases where the array was not a multiple of BITS_PER_LONG. Fix this by making the wcid mask array u32 instead and use DIV_ROUND_UP for the size, just in case we ever bump it to a value that's not a multiple of 32. Reported-by: Ryder Lee Signed-off-by: Felix Fietkau

mt76: mt7615: fix max wtbl size for 7663

2020-05-12T17:52:32Z

Current mt7663 offload firmware can support up to 32 wtbl entries Fixes: f40ac0f3d3c0 ("mt76: mt7615: introduce mt7663e support") Co-developed-by: Sean Wang Signed-off-by: Sean Wang Signed-off-by: Lorenzo Bianconi Signed-off-by: Felix Fietkau

mt76: add multiple wiphy support to mt76_get_min_avg_rssi

2020-02-14T09:03:09Z

Allow tracking clients of both wiphys separately Signed-off-by: Felix Fietkau