kernel/linux.git/drivers/net/wireless/ti, branch v6.6.131

wifi: wlcore: Return -ENOMEM instead of -EAGAIN if there is not enough headroom

2026-03-25T10:06:08+00:00

[ Upstream commit deb353d9bb009638b7762cae2d0b6e8fdbb41a69 ] Since upstream commit e75665dd0968 ("wifi: wlcore: ensure skb headroom before skb_push"), wl1271_tx_allocate() and with it wl1271_prepare_tx_frame() returns -EAGAIN if pskb_expand_head() fails. However, in wlcore_tx_work_locked(), a return value of -EAGAIN from wl1271_prepare_tx_frame() is interpreted as the aggregation buffer being full. This causes the code to flush the buffer, put the skb back at the head of the queue, and immediately retry the same skb in a tight while loop. Because wlcore_tx_work_locked() holds wl->mutex, and the retry happens immediately with GFP_ATOMIC, this will result in an infinite loop and a CPU soft lockup. Return -ENOMEM instead so the packet is dropped and the loop terminates. The problem was found by an experimental code review agent based on gemini-3.1-pro while reviewing backports into v6.18.y. Assisted-by: Gemini:gemini-3.1-pro Fixes: e75665dd0968 ("wifi: wlcore: ensure skb headroom before skb_push") Cc: Peter Astrand Signed-off-by: Guenter Roeck Link: https://patch.msgid.link/20260318064636.3065925-1-linux@roeck-us.net Signed-off-by: Johannes Berg Signed-off-by: Sasha Levin

wifi: wlcore: Fix a locking bug

2026-03-25T10:05:40+00:00

[ Upstream commit 72c6df8f284b3a49812ce2ac136727ace70acc7c ] Make sure that wl->mutex is locked before it is unlocked. This has been detected by the Clang thread-safety analyzer. Fixes: 45aa7f071b06 ("wlcore: Use generic runtime pm calls for wowlan elp configuration") Signed-off-by: Bart Van Assche Link: https://patch.msgid.link/20260223220102.2158611-26-bart.vanassche@linux.dev Signed-off-by: Johannes Berg Signed-off-by: Sasha Levin

wifi: wlcore: ensure skb headroom before skb_push

2026-02-11T12:39:09+00:00

[ Upstream commit e75665dd096819b1184087ba5718bd93beafff51 ] 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 Link: https://patch.msgid.link/097bd417-e1d7-acd4-be05-47b199075013@lysator.liu.se Signed-off-by: Johannes Berg Signed-off-by: Sasha Levin

wifi: wl1251: fix memory leak in wl1251_tx_work

2025-04-25T08:45:38+00:00

[ Upstream commit a0f0dc96de03ffeefc2a177b7f8acde565cb77f4 ] The skb dequeued from tx_queue is lost when wl1251_ps_elp_wakeup fails with a -ETIMEDOUT error. Fix that by queueing the skb back to tx_queue. Fixes: c5483b719363 ("wl12xx: check if elp wakeup failed") Signed-off-by: Abdun Nihaal Reviewed-by: Michael Nemanov Link: https://patch.msgid.link/20250330104532.44935-1-abdun.nihaal@gmail.com Signed-off-by: Johannes Berg Signed-off-by: Sasha Levin

wifi: wlcore: fix unbalanced pm_runtime calls

2025-02-08T08:51:57+00:00

[ Upstream commit 996c934c8c196144af386c4385f61fcd5349af28 ] If firmware boot failes, runtime pm is put too often: [12092.708099] wlcore: ERROR firmware boot failed despite 3 retries [12092.708099] wl18xx_driver wl18xx.1.auto: Runtime PM usage count underflow! Fix that by redirecting all error gotos before runtime_get so that runtime is not put. Fixes: c40aad28a3cf ("wlcore: Make sure firmware is initialized in wl1271_op_add_interface()") Signed-off-by: Andreas Kemnade Reviewed-by: Michael Nemanov Signed-off-by: Kalle Valo Link: https://patch.msgid.link/20250104195507.402673-1-akemnade@kernel.org Signed-off-by: Sasha Levin

wifi: wlcore: sdio: Use module_sdio_driver macro to simplify the code

2023-08-25T09:59:31+00:00

Use the module_sdio_driver macro to simplify the code, which is the same as declaring with module_init() and module_exit(). Signed-off-by: Li Zetao Signed-off-by: Kalle Valo Link: https://lore.kernel.org/r/20230821140345.3140493-1-lizetao1@huawei.com

wlcore: spi: Remove redundant of_match_ptr()

2023-08-16T08:59:40+00:00

The driver depends on CONFIG_OF, it is not necessary to use of_match_ptr() here. Signed-off-by: Ruan Jinjie Reviewed-by: Simon Horman Signed-off-by: David S. Miller

net: Use of_property_read_bool() for boolean properties

2023-03-16T17:41:28+00:00

It is preferred to use typed property access functions (i.e. of_property_read_ functions) rather than low-level of_get_property/of_find_property functions for reading properties. Convert reading boolean properties to of_property_read_bool(). Reviewed-by: Simon Horman Acked-by: Marc Kleine-Budde # for net/can Acked-by: Kalle Valo Acked-by: Nicolas Ferre Acked-by: Francois Romieu Reviewed-by: Wei Fang Signed-off-by: Rob Herring Signed-off-by: David S. Miller

wifi: wl1251: Fix a typo ("boradcast")

2023-02-13T15:14:41+00:00

It should be "broadcast". Signed-off-by: Jonathan Neuschäfer Signed-off-by: Kalle Valo Link: https://lore.kernel.org/r/20230129124919.1305057-1-j.neuschaefer@gmx.net

wifi: ti: remove obsolete lines in the Makefile

2022-12-14T12:33:05+00:00

Commit 06463f6e98df ("wifi: wl1251: drop support for platform data") removes TI WiLink platform data, but leaves some dead lines in the Makefile. Remove these obsolete lines in the Makefile. Signed-off-by: Lukas Bulwahn Reviewed-by: Dmitry Torokhov Signed-off-by: Kalle Valo Link: https://lore.kernel.org/r/20221209095937.17773-1-lukas.bulwahn@gmail.com