kernel/linux.git/drivers/net/wireless/ralink/rt2x00/rt2x00dev.c, branch linux-7.0.y

Convert 'alloc_obj' family to use the new default GFP_KERNEL argument

2026-02-22T01:09:51+00:00

This was done entirely with mindless brute force, using git grep -l '\

treewide: Replace kmalloc with kmalloc_obj for non-scalar types

2026-02-21T09:02:28+00:00

This is the result of running the Coccinelle script from scripts/coccinelle/api/kmalloc_objs.cocci. The script is designed to avoid scalar types (which need careful case-by-case checking), and instead replace kmalloc-family calls that allocate struct or union object instances: Single allocations: kmalloc(sizeof(TYPE), ...) are replaced with: kmalloc_obj(TYPE, ...) Array allocations: kmalloc_array(COUNT, sizeof(TYPE), ...) are replaced with: kmalloc_objs(TYPE, COUNT, ...) Flex array allocations: kmalloc(struct_size(PTR, FAM, COUNT), ...) are replaced with: kmalloc_flex(*PTR, FAM, COUNT, ...) (where TYPE may also be *VAR) The resulting allocations no longer return "void *", instead returning "TYPE *". Signed-off-by: Kees Cook

wifi: rt2x00: check retval for of_get_mac_address

2025-10-27T08:16:12+00:00

of_get_mac_address can return -EPROBE_DEFER when nvmem is not probed yet for whatever reason. In this case, nvmem mac assignments will not work. Based on the function path, this change only has effect for rt2800soc.c and rt2800pci.c. The former tends to use nvmem for assignments. Signed-off-by: Rosen Penev Acked-by: Stanislaw Gruszka Link: https://patch.msgid.link/20251014050833.46377-1-rosenp@gmail.com Signed-off-by: Johannes Berg

wifi: mac80211: support parsing S1G TIM PVB

2025-09-04T09:19:01+00:00

An S1G TIM PVB has 3 mandatory encoding modes, that being block bitmap, single AID and OBL alongside the ability for each encoding mode to be inverted. Introduce the ability to parse the 3 encoding formats. The implementation specification for the encoding formats can be found in IEEE80211-2024 9.4.2.5. Signed-off-by: Arien Judge Signed-off-by: Lachlan Hodges Link: https://patch.msgid.link/20250725132221.258217-3-lachlan.hodges@morsemicro.com Signed-off-by: Johannes Berg

wifi: Fix typos

2025-07-24T07:05:31+00:00

Fix typos in comments and error messages. Signed-off-by: Bjorn Helgaas Link: https://patch.msgid.link/20250723201741.2908456-1-helgaas@kernel.org Signed-off-by: Johannes Berg

wifi: rt2x00: Switch to use hrtimer_setup()

2025-02-18T09:35:47+00:00

hrtimer_setup() takes the callback function pointer as argument and initializes the timer completely. This new function replaces hrtimer_init(). However, converting this driver is not obvious: the driver calls hrtimer_init() in rt2x00dev.c, then set the hrtimer's callback function in rt2800mmio.c and rt2800usb.c. Therefore, switching to the new function is not a simple one-for-one replacement. With the lack of hardware to verify any non-trivial changes, keep it simple and calls hrtimer_setup() with hrtimer_dummy_timeout() as callback function pointer. Signed-off-by: Nam Cao Signed-off-by: Thomas Gleixner Link: https://lore.kernel.org/all/f086be77528edf0dfb455af4cb984b863084a455.1738746872.git.namcao@linutronix.de

wifi: rt2x00: restart beacon queue when hardware reset

2023-11-08T18:14:10+00:00

When a hardware reset is triggered, all registers are reset, so all queues are forced to stop in hardware interface. However, mac80211 will not automatically stop the queue. If we don't manually stop the beacon queue, the queue will be deadlocked and unable to start again. This patch fixes the issue where Apple devices cannot connect to the AP after calling ieee80211_restart_hw(). Signed-off-by: Shiji Yang Acked-by: Stanislaw Gruszka Signed-off-by: Kalle Valo Link: https://lore.kernel.org/r/TYAP286MB031530EB6D98DCE4DF20766CBCA4A@TYAP286MB0315.JPNP286.PROD.OUTLOOK.COM

wifi: mac80211: rename ieee80211_tx_status() to ieee80211_tx_status_skb()

2023-10-23T10:26:51+00:00

make htmldocs warns: Documentation/driver-api/80211/mac80211:109: ./include/net/mac80211.h:5170: WARNING: Duplicate C declaration, also defined at mac80211:1117. Declaration is '.. c:function:: void ieee80211_tx_status (struct ieee80211_hw *hw, struct sk_buff *skb)'. This is because there's a function named ieee80211_tx_status() and a struct named ieee80211_tx_status. This has been discussed previously but no solution found: https://lore.kernel.org/all/20220521114629.6ee9fc06@coco.lan/ There's also a bug open for three years with no solution in sight: https://github.com/sphinx-doc/sphinx/pull/8313 So I guess we have no other solution than to a workaround this in the code, for example to rename the function to ieee80211_tx_status_skb() to avoid the name conflict. I got the idea for the name from ieee80211_tx_status_noskb() in which the skb is not provided as an argument, instead with ieee80211_tx_status_skb() the skb is provided. Compile tested only. Signed-off-by: Kalle Valo Link: https://lore.kernel.org/r/20231012114229.2931808-2-kvalo@kernel.org Signed-off-by: Johannes Berg

wifi: rt2x00: Fix memory leak when handling surveys

2023-04-03T13:44:27+00:00

When removing a rt2x00 device, its associated channel surveys are not freed, causing a memory leak observable with kmemleak: unreferenced object 0xffff9620f0881a00 (size 512): comm "systemd-udevd", pid 2290, jiffies 4294906974 (age 33.768s) hex dump (first 32 bytes): 70 44 12 00 00 00 00 00 92 8a 00 00 00 00 00 00 pD.............. 00 00 00 00 00 00 00 00 ab 87 01 00 00 00 00 00 ................ backtrace: [] __kmalloc+0x4b/0x130 [] rt2800_probe_hw+0xc2b/0x1380 [rt2800lib] [] rt2800usb_probe_hw+0xe/0x60 [rt2800usb] [] rt2x00lib_probe_dev+0x21a/0x7d0 [rt2x00lib] [] rt2x00usb_probe+0x1be/0x980 [rt2x00usb] [] usb_probe_interface+0xe2/0x310 [usbcore] [] really_probe+0x1a5/0x410 [] __driver_probe_device+0x78/0x180 [] driver_probe_device+0x1e/0x90 [] __driver_attach+0xd2/0x1c0 [] bus_for_each_dev+0x77/0xd0 [] bus_add_driver+0x112/0x210 [] driver_register+0x5c/0x120 [] usb_register_driver+0x88/0x150 [usbcore] [] do_one_initcall+0x44/0x220 [] do_init_module+0x4c/0x220 Fix this by freeing the channel surveys on device removal. Tested with a RT3070 based USB wireless adapter. Fixes: 5447626910f5 ("rt2x00: save survey for every channel visited") Signed-off-by: Armin Wolf Reviewed-by: Simon Horman Acked-by: Stanislaw Gruszka Signed-off-by: Kalle Valo Link: https://lore.kernel.org/r/20230330215637.4332-1-W_Armin@gmx.de

wifi: rt2x00: add throughput LED trigger

2022-09-24T12:30:54+00:00

This adds a (currently missing) throughput LED trigger for the rt2x00 driver. Previously, LED triggers had to be assigned to the netdev, which was limited to a single VAP. Tested-by: Christoph Krapp Signed-off-by: David Bauer Acked-by: Stanislaw Gruszka Signed-off-by: Daniel Golle Signed-off-by: Kalle Valo Link: https://lore.kernel.org/r/73f5ba4134e621462a26186449400cf0c1ac1730.1663445157.git.daniel@makrotopia.org