From 3d913719df14c28c4d3819e7e6d150760222bda4 Mon Sep 17 00:00:00 2001 From: Ben Greear Date: Tue, 30 Apr 2024 16:42:12 -0700 Subject: wifi: iwlwifi: Use request_module_nowait This appears to work around a deadlock regression that came in with the LED merge in 6.9. The deadlock happens on my system with 24 iwlwifi radios, so maybe it something like all worker threads are busy and some work that needs to complete cannot complete. Link: https://lore.kernel.org/linux-kernel/20240411070718.GD6194@google.com/ Fixes: f5c31bcf604d ("Merge tag 'leds-next-6.9' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/leds") Signed-off-by: Ben Greear Link: https://msgid.link/20240430234212.2132958-1-greearb@candelatech.com [also remove unnecessary "load_module" var and now-wrong comment] Signed-off-by: Johannes Berg --- drivers/net/wireless/intel/iwlwifi/iwl-drv.c | 10 +--------- 1 file changed, 1 insertion(+), 9 deletions(-) (limited to 'drivers/net') diff --git a/drivers/net/wireless/intel/iwlwifi/iwl-drv.c b/drivers/net/wireless/intel/iwlwifi/iwl-drv.c index 4696d73c8971..1b7254569a37 100644 --- a/drivers/net/wireless/intel/iwlwifi/iwl-drv.c +++ b/drivers/net/wireless/intel/iwlwifi/iwl-drv.c @@ -1484,7 +1484,6 @@ static void iwl_req_fw_callback(const struct firmware *ucode_raw, void *context) size_t trigger_tlv_sz[FW_DBG_TRIGGER_MAX]; u32 api_ver; int i; - bool load_module = false; bool usniffer_images = false; bool failure = true; @@ -1732,19 +1731,12 @@ static void iwl_req_fw_callback(const struct firmware *ucode_raw, void *context) goto out_unbind; } } else { - load_module = true; + request_module_nowait("%s", op->name); } mutex_unlock(&iwlwifi_opmode_table_mtx); complete(&drv->request_firmware_complete); - /* - * Load the module last so we don't block anything - * else from proceeding if the module fails to load - * or hangs loading. - */ - if (load_module) - request_module("%s", op->name); failure = false; goto free; -- cgit v1.2.3