From nobody Thu Oct 2 09:21:01 2025 Received: from mail-wr1-f41.google.com (mail-wr1-f41.google.com [209.85.221.41]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 5939330CDB0 for ; Thu, 18 Sep 2025 15:26:07 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.221.41 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1758209169; cv=none; b=P0L4YlzLWfS05itBstsgVe6ScZh1QvF0ZnU17YhMPZv3zh3KIP6u8KZokvVGDwEQi8li9v1YXKVXdxHzBxwFY7N9xhcuhyM9Y/V/N0S43bN3nQ8cOpUo7u/treexHuUNpb1MiMlruAD6rS56NezwYhn9Lpatuxe6OqRE7PTKYao= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1758209169; c=relaxed/simple; bh=BgrkpQFFo5N6imSMfutDKuvd+pZs7IwFD2JEqY9Yim8=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=gpn8bgrJSyrwT7BaXyyVp3nustHTEGUf8bhkBSQxbAnl1HGtOX5cItjK1AZqngMfTnTG61U8BAOeKHrQSmibBrA1hNP7l503YwS59r1nM+jm93nhoTR4GzsXOifrE9hsUID7ec0yZRo/vPa/Elfw8MJaBb4ljvcl1sCy7CdJFPU= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=suse.com; spf=pass smtp.mailfrom=suse.com; dkim=pass (2048-bit key) header.d=suse.com header.i=@suse.com header.b=N2dtHXrd; arc=none smtp.client-ip=209.85.221.41 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=suse.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=suse.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=suse.com header.i=@suse.com header.b="N2dtHXrd" Received: by mail-wr1-f41.google.com with SMTP id ffacd0b85a97d-3ee15b5435bso118748f8f.0 for ; Thu, 18 Sep 2025 08:26:07 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=suse.com; s=google; t=1758209165; x=1758813965; darn=vger.kernel.org; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to; bh=tArcWhUAVfKI1IR+L4EJJlA6CZw4Wq2C6U9y07jPVV4=; b=N2dtHXrdUVvchRyDVFLaU1XPGW3iFN/G/2fo/vXUfOCMePH4bpsXPQ+iHujGkN10dI WFKRijC218hZ88OOTJbSgZJcbtnegjIBCRimBQJle39Ba2V4J6MXoWRakDIPYFZGBCB1 6Ts+uEQ464nJfZXOf9LwTm6xB5kj2egktkov8FtujjjI1pLYaKNvL0d4tc/fPFMvjwyq 5UjoneqarkB/nAZT8VNyXNq1vllbej5yLUzkV7XjMFVLAveT4XryERmko1G3Wi3WvGqo ZkEG+xQRJthllYHSOnNSfPMqP2URBbHD/gH3RitMfSX+vhJxYafcEqkxJRBSzpr4KDa1 IWBg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1758209165; x=1758813965; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=tArcWhUAVfKI1IR+L4EJJlA6CZw4Wq2C6U9y07jPVV4=; b=IfjH5WQgMT+pYe8wf4uT54lWqhpQNWVkqle/ZqP9QlTb1rGhSWr0Qbl9CKgy5hlCL/ 74CtzZflFuQw1SemZO5HqCrBsxnogAgK+xfz+FGCpuGXU3Y3FABn+iu8AejF328IMQxZ 25TXD6qaIpSlLgHAqEfeBeoy+WNqRVFNwiEHj5gcJ3s8WhobjSR+e3ujrTe793uV1ZhY abWmteLHOX7rhKnkMNkyU+lLO6njyYxjnDYpFLhQusXQD5ruMZ4XEYY0vL+P7nqX7Swp kgmgRc3Xt2RGu9BwggW1rQsWNDGh6tqb1JBcVfdGnGk+8jUa8LcuEUaY2GL4v6TABMko muxg== X-Gm-Message-State: AOJu0YzeP8+zm6Us9Ko7I6v6MqZHz2IQqV2/CVdHvIBxDTBpykFbhiAr P5bqeHjhC0ScYLxpi4tPEWPmLUICvjE23XM29k4r/3tIHDmFP1DrlGM98CnksqsuEQrSkLQdtbx QgCepcio= X-Gm-Gg: ASbGnctT1tBX6omf1Jdeb5wxYDRAn3GgdMoQv3XCKVuGeU+61kmzm3fKaUeWomILFkE Y66GdULQw5SEIEqNAbVVNDcVG17zz0MOvxxrVP/YKsc8GF+PxqRs+pqe7tT0V5xGI+eJId9VorZ HutYxTLLGpA7UsYMkddXqnOKTXkjJrB0HjO4/Re1YxlpvvvOJhfODamsdZkmwwbNshQx8/yyTWW UeYEh41pccg7eRaxPOnpsPWz0Rp7S/rk0Q/s6N5MxaUQHlVqKQSAaISAsFNUF+BV/N4ouz3O9D4 QOTlONxnsj0zU9ZsvYEPw5/5ml4bHj+xTGxJgJFxGAeLz3dquu4IQKaFJRUr/DdB6MFO22kPtMr lnDUdlKr4AVymm4kEFOReyUNTk/yXeE7YVpLx+4LJF2klUHJi7Wg79KlAwkVXyrBr X-Google-Smtp-Source: AGHT+IGvOFPQ1piai96hvU2hEjSeyPGIASHKtCRp0rLWzyrq8u4fJZ9ExADLpppLLF4E28tCe03f3g== X-Received: by 2002:a05:6000:1845:b0:3e7:4fda:fe0c with SMTP id ffacd0b85a97d-3ecdf9bfd16mr5945312f8f.15.1758209165310; Thu, 18 Sep 2025 08:26:05 -0700 (PDT) Received: from localhost.localdomain ([2a00:6d43:105:c401:e307:1a37:2e76:ce91]) by smtp.gmail.com with ESMTPSA id ffacd0b85a97d-3ee073f3d73sm4069815f8f.8.2025.09.18.08.26.04 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 18 Sep 2025 08:26:05 -0700 (PDT) From: Marco Crivellari To: linux-kernel@vger.kernel.org Cc: Tejun Heo , Lai Jiangshan , Frederic Weisbecker , Sebastian Andrzej Siewior , Marco Crivellari , Michal Hocko , Johannes Berg , Miri Korenblit , Emmanuel Grumbach , Pagadala Yesu Anjaneyulu Subject: [PATCH 1/2] wifi: iwlwifi: replace use of system_unbound_wq with system_dfl_wq Date: Thu, 18 Sep 2025 17:25:16 +0200 Message-ID: <20250918152517.361773-2-marco.crivellari@suse.com> X-Mailer: git-send-email 2.51.0 In-Reply-To: <20250918152517.361773-1-marco.crivellari@suse.com> References: <20250918152517.361773-1-marco.crivellari@suse.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" Currently if a user enqueue a work item using schedule_delayed_work() the used wq is "system_wq" (per-cpu wq) while queue_delayed_work() use WORK_CPU_UNBOUND (used when a cpu is not specified). The same applies to schedule_work() that is using system_wq and queue_work(), that makes use again of WORK_CPU_UNBOUND. This lack of consistentcy cannot be addressed without refactoring the API. system_unbound_wq should be the default workqueue so as not to enforce locality constraints for random work whenever it's not required. Adding system_dfl_wq to encourage its use when unbound work should be used. The old system_unbound_wq will be kept for a few release cycles. Suggested-by: Tejun Heo Signed-off-by: Marco Crivellari --- drivers/net/wireless/intel/iwlwifi/fw/dbg.c | 4 ++-- drivers/net/wireless/intel/iwlwifi/iwl-trans.h | 2 +- 2 files changed, 3 insertions(+), 3 deletions(-) diff --git a/drivers/net/wireless/intel/iwlwifi/fw/dbg.c b/drivers/net/wire= less/intel/iwlwifi/fw/dbg.c index 2ce55859641c..e5f31b82339a 100644 --- a/drivers/net/wireless/intel/iwlwifi/fw/dbg.c +++ b/drivers/net/wireless/intel/iwlwifi/fw/dbg.c @@ -2933,7 +2933,7 @@ int iwl_fw_dbg_collect_desc(struct iwl_fw_runtime *fw= rt, IWL_WARN(fwrt, "Collecting data: trigger %d fired.\n", le32_to_cpu(desc->trig_desc.type)); =20 - queue_delayed_work(system_unbound_wq, &wk_data->wk, + queue_delayed_work(system_dfl_wq, &wk_data->wk, usecs_to_jiffies(delay)); =20 return 0; @@ -3237,7 +3237,7 @@ int iwl_fw_dbg_ini_collect(struct iwl_fw_runtime *fwr= t, if (sync) iwl_fw_dbg_collect_sync(fwrt, idx); else - queue_delayed_work(system_unbound_wq, + queue_delayed_work(system_dfl_wq, &fwrt->dump.wks[idx].wk, usecs_to_jiffies(delay)); =20 diff --git a/drivers/net/wireless/intel/iwlwifi/iwl-trans.h b/drivers/net/w= ireless/intel/iwlwifi/iwl-trans.h index a552669db6e2..2f24b639c133 100644 --- a/drivers/net/wireless/intel/iwlwifi/iwl-trans.h +++ b/drivers/net/wireless/intel/iwlwifi/iwl-trans.h @@ -1092,7 +1092,7 @@ static inline void iwl_trans_schedule_reset(struct iw= l_trans *trans, */ trans->restart.during_reset =3D test_bit(STATUS_IN_SW_RESET, &trans->status); - queue_delayed_work(system_unbound_wq, &trans->restart.wk, 0); + queue_delayed_work(system_dfl_wq, &trans->restart.wk, 0); } =20 static inline void iwl_trans_fw_error(struct iwl_trans *trans, --=20 2.51.0 From nobody Thu Oct 2 09:21:01 2025 Received: from mail-wm1-f46.google.com (mail-wm1-f46.google.com [209.85.128.46]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 684A124467A for ; Thu, 18 Sep 2025 15:26:08 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.128.46 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1758209170; cv=none; b=U9qP+pUX/FNZmHJiX9I+SAfH+2VI0JLGEzPNx4eXKx21a0HwZHLpo9coj3b0a/6ix/rfH+ukHV5ca06oZVyEbbUyWxdzGjzjpeA3wyqASWWJvZZ6b6bX/IVTg/KgkTNj6rRPPzA3JagWrfMT8OCQNHJKBmrsLWAL8u1W/fwzN60= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1758209170; c=relaxed/simple; bh=T/mWFe8NzS54YpnNNIjgGNosJ7quWk5Bo4FQETSjfQs=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=oGd9fxYfRNBL5/icWu0kBglB9rilu5Q8qUBjKktxIGwbwgyn+eMr45bvBnF2UqwEGSSSN7O2tX4G7RrGJv7UVOOTX8d8g90yAbKaVHTNznpGNvbIhTOTXCG+JTcTvWk2fgXYVq5TKF3Lp5kGF9O2lm70Wr94RKpBPLWWvrPHUtw= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=suse.com; spf=pass smtp.mailfrom=suse.com; dkim=pass (2048-bit key) header.d=suse.com header.i=@suse.com header.b=fEHCzXBX; arc=none smtp.client-ip=209.85.128.46 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=suse.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=suse.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=suse.com header.i=@suse.com header.b="fEHCzXBX" Received: by mail-wm1-f46.google.com with SMTP id 5b1f17b1804b1-45f2f7ae386so8155885e9.3 for ; Thu, 18 Sep 2025 08:26:08 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=suse.com; s=google; t=1758209166; x=1758813966; darn=vger.kernel.org; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to; bh=vPabrgJ3flhzfh3xzBI0TJyAcLG6lM4hGPw3JCTS0NM=; b=fEHCzXBXDkYgV0HUjs24QqnAKGz2D7Iiys8h5rhQXH68nzY3xNqkxStYdGMbdmk9OM suYRQpr6IWS7V/Buhfp8sUaWdjqyFGJqP+p47ricuZhW9mI8SBWif2fuRmCWCEd4IEjW kDBTEbVqGdA/QyPgQWzipnNOWfwfF025xKUdSNtkykK0kK/ykjOY4Rhk3Kj/YSY6nS+6 C6Q4QHi5W1Sa2d5oywrW0hKvEqKYIyPdpR5BbFOdimj9JuTiEoNAff+wABw2R6j/gwBb eTlZ/4den5MF1LDtQMegEJzKLg0i6sGopw/umRZ0aurYD+HyEzYyDtxQ6lTSsYarczJj k1oQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1758209166; x=1758813966; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=vPabrgJ3flhzfh3xzBI0TJyAcLG6lM4hGPw3JCTS0NM=; b=v++vT2E+M8s9zl4euoboThroQ0i1cPVHYkhEnN+aaFWV4FGxQDRBWkpOGwR8bNXU6P 7D8gV64GWXUEbNOQzGwF4WBSdFiTmOEasgl+Peio0++OAkbhK2d1I0s9R0VbDldclSyr IUPVFsMdD9CeiI//6voDPBCe2DVHFyz3wLyjlmVElF8vNse0HeRlb8gLbRgPbw9kfW5T PsRwziuMeWWqK6o4XWwid0btYyndsQ3u4IgLTf3+ki/RYy/E89rQ7qv1pK9MwKBHTLoD HsoWdCidehJs/1my472JhwSOIbcUGhzINLBAVVn6e7+5teOAftmJilISBYaIiruVyS8N RuNw== X-Gm-Message-State: AOJu0YxMThvnOHKjGtR7HWPTmgs0YAvvtN+OXcfUwCiF2HkpPpfBqSYo YXRyJ9fPQ7pcj/MMeEWUI1/jZHZj06Nkv5F8zfo/C9aM48N4byTXtZQoP92BdEwU5M0OD9EyMs9 rtTj3Gos= X-Gm-Gg: ASbGncuYUcSjCojnTkeOynjEFPLLYp1TOzrQJ2Cj2fmrZ+NS1IyDzvpMprEaI24FWtm CEjifpufbqo66ODRLo7WJss5U/vpb4NWYu1IkE2jdpgR94BuTY9SVhWnaAs6K4WnYd6+KFfabsp EkxOAZ3k9U9jAOFtDDi2UJeb0pm2RQ1/F7D6GRdElNwWxFMP4fR4zXD0z5+b5IeWIG2zkbxnGlM 7cwPxEQpxdc77uzboKZ0fRLZZNjPwnyp5ideBe+0k/n/3uh89/WyTdBktWnaculFq6+eKp1cm2d XrHEEcXcr+8zk/ZVZXkse1KA9N2r/RnBno9xlHe5MUa/LUDSWbTCpEmMlkNekhZ7sHV4xG0z3WN THQWpX8rfebbn7PRi5mCroyQJEDwDUpQdiB4CCNqyAxsN5NlZVkVKo40gv4e56ANY X-Google-Smtp-Source: AGHT+IEpdSO5Kx2EqRZYU9Is6GMWXSSVjk1EzXFYF/z2X5WoUebXHk2UFL+J3lsvf5aGWoJdYiR8Xg== X-Received: by 2002:a05:6000:26c6:b0:3dc:eb5:51f6 with SMTP id ffacd0b85a97d-3ecdfa07bc5mr5332196f8f.39.1758209166322; Thu, 18 Sep 2025 08:26:06 -0700 (PDT) Received: from localhost.localdomain ([2a00:6d43:105:c401:e307:1a37:2e76:ce91]) by smtp.gmail.com with ESMTPSA id ffacd0b85a97d-3ee073f3d73sm4069815f8f.8.2025.09.18.08.26.05 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 18 Sep 2025 08:26:06 -0700 (PDT) From: Marco Crivellari To: linux-kernel@vger.kernel.org Cc: Tejun Heo , Lai Jiangshan , Frederic Weisbecker , Sebastian Andrzej Siewior , Marco Crivellari , Michal Hocko , Johannes Berg , Miri Korenblit , Emmanuel Grumbach , Pagadala Yesu Anjaneyulu Subject: [PATCH 2/2] wifi: replace use of system_wq with system_percpu_wq Date: Thu, 18 Sep 2025 17:25:17 +0200 Message-ID: <20250918152517.361773-3-marco.crivellari@suse.com> X-Mailer: git-send-email 2.51.0 In-Reply-To: <20250918152517.361773-1-marco.crivellari@suse.com> References: <20250918152517.361773-1-marco.crivellari@suse.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" Currently if a user enqueue a work item using schedule_delayed_work() the used wq is "system_wq" (per-cpu wq) while queue_delayed_work() use WORK_CPU_UNBOUND (used when a cpu is not specified). The same applies to schedule_work() that is using system_wq and queue_work(), that makes use again of WORK_CPU_UNBOUND. This lack of consistentcy cannot be addressed without refactoring the API. system_wq is a per-cpu workqueue, but its name is not clear. Because of that has been renamed in system_percpu_wq. The old system_wq will be kept for a few release cycles. Suggested-by: Tejun Heo Signed-off-by: Marco Crivellari --- drivers/net/wireless/intel/ipw2x00/ipw2100.c | 6 +++--- drivers/net/wireless/intel/ipw2x00/ipw2200.c | 2 +- drivers/net/wireless/intel/iwlwifi/mvm/tdls.c | 6 +++--- 3 files changed, 7 insertions(+), 7 deletions(-) diff --git a/drivers/net/wireless/intel/ipw2x00/ipw2100.c b/drivers/net/wir= eless/intel/ipw2x00/ipw2100.c index 215814861cbd..c7c5bc0f1650 100644 --- a/drivers/net/wireless/intel/ipw2x00/ipw2100.c +++ b/drivers/net/wireless/intel/ipw2x00/ipw2100.c @@ -2143,7 +2143,7 @@ static void isr_indicate_rf_kill(struct ipw2100_priv = *priv, u32 status) =20 /* Make sure the RF Kill check timer is running */ priv->stop_rf_kill =3D 0; - mod_delayed_work(system_wq, &priv->rf_kill, round_jiffies_relative(HZ)); + mod_delayed_work(system_percpu_wq, &priv->rf_kill, round_jiffies_relative= (HZ)); } =20 static void ipw2100_scan_event(struct work_struct *work) @@ -2170,7 +2170,7 @@ static void isr_scan_complete(struct ipw2100_priv *pr= iv, u32 status) round_jiffies_relative(msecs_to_jiffies(4000))); } else { priv->user_requested_scan =3D 0; - mod_delayed_work(system_wq, &priv->scan_event, 0); + mod_delayed_work(system_percpu_wq, &priv->scan_event, 0); } } =20 @@ -4252,7 +4252,7 @@ static int ipw_radio_kill_sw(struct ipw2100_priv *pri= v, int disable_radio) "disabled by HW switch\n"); /* Make sure the RF_KILL check timer is running */ priv->stop_rf_kill =3D 0; - mod_delayed_work(system_wq, &priv->rf_kill, + mod_delayed_work(system_percpu_wq, &priv->rf_kill, round_jiffies_relative(HZ)); } else schedule_reset(priv); diff --git a/drivers/net/wireless/intel/ipw2x00/ipw2200.c b/drivers/net/wir= eless/intel/ipw2x00/ipw2200.c index 24a5624ef207..09035a77e775 100644 --- a/drivers/net/wireless/intel/ipw2x00/ipw2200.c +++ b/drivers/net/wireless/intel/ipw2x00/ipw2200.c @@ -4415,7 +4415,7 @@ static void handle_scan_event(struct ipw_priv *priv) round_jiffies_relative(msecs_to_jiffies(4000))); } else { priv->user_requested_scan =3D 0; - mod_delayed_work(system_wq, &priv->scan_event, 0); + mod_delayed_work(system_percpu_wq, &priv->scan_event, 0); } } =20 diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/tdls.c b/drivers/net/wi= reless/intel/iwlwifi/mvm/tdls.c index 36379b738de1..0df31639fa5e 100644 --- a/drivers/net/wireless/intel/iwlwifi/mvm/tdls.c +++ b/drivers/net/wireless/intel/iwlwifi/mvm/tdls.c @@ -234,7 +234,7 @@ void iwl_mvm_rx_tdls_notif(struct iwl_mvm *mvm, struct = iwl_rx_cmd_buffer *rxb) * Also convert TU to msec. */ delay =3D TU_TO_MS(vif->bss_conf.dtim_period * vif->bss_conf.beacon_int); - mod_delayed_work(system_wq, &mvm->tdls_cs.dwork, + mod_delayed_work(system_percpu_wq, &mvm->tdls_cs.dwork, msecs_to_jiffies(delay)); =20 iwl_mvm_tdls_update_cs_state(mvm, IWL_MVM_TDLS_SW_ACTIVE); @@ -548,7 +548,7 @@ iwl_mvm_tdls_channel_switch(struct ieee80211_hw *hw, */ delay =3D 2 * TU_TO_MS(vif->bss_conf.dtim_period * vif->bss_conf.beacon_int); - mod_delayed_work(system_wq, &mvm->tdls_cs.dwork, + mod_delayed_work(system_percpu_wq, &mvm->tdls_cs.dwork, msecs_to_jiffies(delay)); return 0; } @@ -659,6 +659,6 @@ iwl_mvm_tdls_recv_channel_switch(struct ieee80211_hw *h= w, /* register a timeout in case we don't succeed in switching */ delay =3D vif->bss_conf.dtim_period * vif->bss_conf.beacon_int * 1024 / 1000; - mod_delayed_work(system_wq, &mvm->tdls_cs.dwork, + mod_delayed_work(system_percpu_wq, &mvm->tdls_cs.dwork, msecs_to_jiffies(delay)); } --=20 2.51.0