From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-3.8 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE, SPF_PASS autolearn=no autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 0CC6FC433E6 for ; Sun, 3 Jan 2021 13:11:08 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id CE665207FB for ; Sun, 3 Jan 2021 13:11:07 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727179AbhACNKy (ORCPT ); Sun, 3 Jan 2021 08:10:54 -0500 Received: from mout.gmx.net ([212.227.15.19]:46563 "EHLO mout.gmx.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725889AbhACNKw (ORCPT ); Sun, 3 Jan 2021 08:10:52 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=gmx.net; s=badeba3b8450; t=1609679328; bh=oMr1UiVpyl19HlZUfahdVovI0N9bYyAD0KPthy7OE58=; h=X-UI-Sender-Class:From:To:Cc:Subject:Date:In-Reply-To:References; b=XVCkIsAsZ5045sRzx79XEYhN88Cva+MQLh08CwAjV4QZosrN5+M/LrZW5tod1FMb3 DPtEoVo04QHtDOjutseTwZ3MGMaG8ypa/iDmZ2PFF7d+yLpXhniF4eeks1Mk9FqblN EgJOgyjHuy5oFlATIifNqzV6azKHX25ByGgA68yY= X-UI-Sender-Class: 01bb95c1-4bf8-414a-932a-4f6e2808ef9c Received: from [37.60.0.25] ([37.60.0.25]) by web-mail.gmx.net (3c-app-gmx-bs25.server.lan [172.19.170.77]) (via HTTP); Sun, 3 Jan 2021 14:08:48 +0100 MIME-Version: 1.0 Message-ID: From: Frank Wunderlich To: Marc Zyngier , linux-pci@vger.kernel.org, linux-mediatek@lists.infradead.org, Thomas Gleixner Cc: Ryder Lee , linux-kernel@vger.kernel.org, Bjorn Helgaas , Matthias Brugger Subject: Aw: Re: Re: Re: [PATCH] pci: mediatek: fix warning in msi.h Content-Type: text/plain; charset=UTF-8 Date: Sun, 3 Jan 2021 14:08:48 +0100 Importance: normal Sensitivity: Normal In-Reply-To: References: <20201031140330.83768-1-linux@fw-web.de> <87k0v4u4uq.wl-maz@kernel.org> <87pn4w90hm.fsf@nanos.tec.linutronix.de> <87h7q791j8.fsf@nanos.tec.linutronix.de> <877dr38kt8.fsf@nanos.tec.linutronix.de> <901c5eb8bbaa3fe53ddc8f65917e48ef@kernel.org> <87o8ke7njb.fsf@nanos.tec.linutronix.de> <87h7q4lnoz.fsf@nanos.tec.linutronix.de> <074d057910c3e834f4bd58821e8583b1@kernel.org> <87blgbl887.fsf@nanos.tec.linutronix.de> X-UI-Message-Type: mail X-Priority: 3 X-Provags-ID: V03:K1:J48wtdsm07XMDPp5d2vD3ZinBgTIrZNvTEDy1RDlf7YJK4WgCuHyKiJcCT+3fs/aHVr3U OZYr6E1cJnVNTIppmSzsbIXxW4D5+GyDaF9VU/Ig7DDyYTTZOyNRsPWz6taIGLPiFvkN39Ph8/Az +d3NIQwDcx7DVoSaeYwqCsQ/XuNFEBDglhY/SpcK1SWXm7KvMqM2jHf2ULt1FQavXTgakKjvNiwy vNNP1AFvbugSRtjcGqYFu0Si0EnllLMDanVyEO9+nItBS20JuSSS/9iilaT6iQMDaXSxWmFaA0cF +k= X-UI-Out-Filterresults: notjunk:1;V03:K0:3IjPHSWw2kc=:KQS8VlTbW6vT49NEERNQ5Q 1CKPcuz2ZrM1h4osOB2YZLiq6XOrfWhQhbCQA3HBH+stgYBzocnleXbDZdnNMNccVozt1STZ5 rOyR2dCpsVVZItUyAgUhDuzn4gSgSHebCxjuLE4yeBqQ+vKGCX4byR2OjwXTbBUMJ8hH7edPl XArYkjLp47ObXtK9NL6OUzqC5wM9+0eF0zaX0/+auJff/kteI2qDarU1XYxCL0ZTsucVAzuR7 demRjBO89VACHu/PaskNFINPMsZOYxtK1WWG+dkMKs/JFA3srVjJgY1toScvOqZruPsgzrdy8 aQ3c0WaxyeNDIq38Z66yF0zM0L8pvcmuaBQisbirRQA3jCP1OIKOsTxdIffgw3QMe0iBCLObG tSfrd4l78GUb2kSEqfByjZP9PVv/+pV5hoB/Ee6a75EWLLPUET2do+fragZdr9ru69grKyDMZ XXQk9DdvY7v2exLzjeNdhxMFExEaOqb2IuBFPAmXsviwrKt3W9+YvgcyI5lax4zWn/CAZ3w3U b2kn9qKV+TBTqAc6TP0/59DV6m/7U384COmFvbEHoZv5yGq1IwtohnndZljvX1k+5jBBojKi0 8NTrKtz3jKQL0= Content-Transfer-Encoding: quoted-printable Precedence: bulk List-ID: X-Mailing-List: linux-pci@vger.kernel.org Hi, 5.11-rc1 is also affected, here is the relevant part of trace from my bana= napi-r2: [ 5.792659] mtk-pcie 1a140000.pcie: PCI host bridge to bus 0000:00 [ 5.798879] pci_bus 0000:00: root bus resource [bus 00-ff] [ 5.804412] pci_bus 0000:00: root bus resource [io 0x0000-0xffff] (bus= address [0x1a160000-0x1a16ffff]) [ 5.813928] pci_bus 0000:00: root bus resource [mem 0x60000000-0x6fffff= ff] [ 5.820876] pci 0000:00:00.0: [14c3:0801] type 01 class 0x060400 [ 5.826915] pci 0000:00:00.0: reg 0x14: [mem 0x00000000-0x0000ffff] [ 5.833294] pci 0000:00:00.0: supports D1 [ 5.837315] pci 0000:00:00.0: PME# supported from D0 D1 D3hot [ 5.843550] pci 0000:00:01.0: [14c3:0801] type 01 class 0x060400 [ 5.849598] pci 0000:00:01.0: reg 0x14: [mem 0x00000000-0x0000ffff] [ 5.855995] pci 0000:00:01.0: supports D1 [ 5.860016] pci 0000:00:01.0: PME# supported from D0 D1 D3hot [ 5.868688] PCI: bus0: Fast back to back transfers disabled [ 5.874325] pci 0000:00:00.0: bridge configuration invalid ([bus 00-00]= ), reconfiguring [ 5.882392] pci 0000:00:01.0: bridge configuration invalid ([bus 00-00]= ), reconfiguring [ 5.890648] pci 0000:01:00.0: [14c3:7615] type 00 class 0x000280 [ 5.896700] pci 0000:01:00.0: reg 0x10: [mem 0x00000000-0x000fffff 64bi= t] [ 5.933326] PCI: bus1: Fast back to back transfers disabled [ 5.938930] pci_bus 0000:01: busn_res: [bus 01-ff] end is updated to 01 [ 5.945814] pci 0000:02:00.0: [1b21:0611] type 00 class 0x010185 [ 5.951889] pci 0000:02:00.0: reg 0x10: initial BAR value 0x00000000 in= valid [ 5.958949] pci 0000:02:00.0: reg 0x10: [io size 0x0008] [ 5.964382] pci 0000:02:00.0: reg 0x14: initial BAR value 0x00000000 in= valid [ 5.971454] pci 0000:02:00.0: reg 0x14: [io size 0x0004] [ 5.976869] pci 0000:02:00.0: reg 0x18: initial BAR value 0x00000000 in= valid [ 5.983938] pci 0000:02:00.0: reg 0x18: [io size 0x0008] [ 5.989352] pci 0000:02:00.0: reg 0x1c: initial BAR value 0x00000000 in= valid [ 5.996424] pci 0000:02:00.0: reg 0x1c: [io size 0x0004] [ 6.001854] pci 0000:02:00.0: reg 0x20: initial BAR value 0x00000000 in= valid [ 6.008910] pci 0000:02:00.0: reg 0x20: [io size 0x0010] [ 6.014337] pci 0000:02:00.0: reg 0x24: [mem 0x00000000-0x000001ff] [ 6.020635] pci 0000:02:00.0: reg 0x30: [mem 0x00000000-0x0000ffff pref= ] [ 6.053312] PCI: bus2: Fast back to back transfers disabled [ 6.058912] pci_bus 0000:02: busn_res: [bus 02-ff] end is updated to 02 [ 6.065622] pci 0000:00:00.0: BAR 8: assigned [mem 0x60000000-0x600ffff= f] [ 6.072448] pci 0000:00:01.0: BAR 8: assigned [mem 0x60100000-0x601ffff= f] [ 6.079248] pci 0000:00:01.0: BAR 9: assigned [mem 0x60200000-0x602ffff= f pref] [ 6.086500] pci 0000:00:00.0: BAR 1: assigned [mem 0x60300000-0x6030fff= f] [ 6.093318] pci 0000:00:01.0: BAR 1: assigned [mem 0x60310000-0x6031fff= f] [ 6.100120] pci 0000:00:01.0: BAR 7: assigned [io 0x1000-0x1fff] [ 6.106255] pci 0000:01:00.0: BAR 0: assigned [mem 0x60000000-0x600ffff= f 64bit] [ 6.113609] pci 0000:00:00.0: PCI bridge to [bus 01] [ 6.118585] pci 0000:00:00.0: bridge window [mem 0x60000000-0x600ffff= f] [ 6.125405] pci 0000:02:00.0: BAR 6: assigned [mem 0x60200000-0x6020fff= f pref] [ 6.132656] pci 0000:02:00.0: BAR 5: assigned [mem 0x60100000-0x601001f= f] [ 6.139458] pci 0000:02:00.0: BAR 4: assigned [io 0x1000-0x100f] [ 6.145579] pci 0000:02:00.0: BAR 0: assigned [io 0x1010-0x1017] [ 6.151699] pci 0000:02:00.0: BAR 2: assigned [io 0x1018-0x101f] [ 6.157807] pci 0000:02:00.0: BAR 1: assigned [io 0x1020-0x1023] [ 6.163927] pci 0000:02:00.0: BAR 3: assigned [io 0x1024-0x1027] [ 6.170034] pci 0000:00:01.0: PCI bridge to [bus 02] [ 6.175035] pci 0000:00:01.0: bridge window [io 0x1000-0x1fff] [ 6.181153] pci 0000:00:01.0: bridge window [mem 0x60100000-0x601ffff= f] [ 6.187951] pci 0000:00:01.0: bridge window [mem 0x60200000-0x602ffff= f pref] [ 6.195427] pcieport 0000:00:00.0: enabling device (0140 -> 0142) [ 6.201795] pcieport 0000:00:00.0: PME: Signaling with IRQ 258 [ 6.208053] pcieport 0000:00:01.0: enabling device (0140 -> 0143) [ 6.214395] pcieport 0000:00:01.0: PME: Signaling with IRQ 252 [ 6.220784] ahci 0000:02:00.0: version 3.0 [ 6.220814] ahci 0000:02:00.0: enabling device (0140 -> 0143) [ 6.226705] ------------[ cut here ]------------ [ 6.231380] WARNING: CPU: 0 PID: 33 at include/linux/msi.h:252 pci_msi_= setup_msi_irqs.constprop.0+0x78/0x80 [ 6.241167] Modules linked in: [ 6.244235] CPU: 0 PID: 33 Comm: kworker/0:1 Not tainted 5.11.0-rc1-bpi= -r2-wifi #1 [ 6.251816] Hardware name: Mediatek Cortex-A7 (Device Tree) [ 6.257395] Workqueue: events deferred_probe_work_func [ 6.262549] Backtrace: [ 6.264999] [] (dump_backtrace) from [] (show_stack= +0x20/0x24) [ 6.272598] r7:000000fc r6:60000013 r5:00000000 r4:c15eff8c [ 6.278258] [] (show_stack) from [] (dump_stack+0xc= c/0xe0) [ 6.285499] [] (dump_stack) from [] (__warn+0xfc/0x= 114) [ 6.292477] r7:000000fc r6:c061e14c r5:00000009 r4:c129b5b0 [ 6.298137] [] (__warn) from [] (warn_slowpath_fmt+= 0x74/0xd0) [ 6.305641] r7:c061e14c r6:000000fc r5:c129b5b0 r4:00000000 [ 6.311301] [] (warn_slowpath_fmt) from [] (pci_msi= _setup_msi_irqs.constprop.0+0x78/0x80) [ 6.321241] r8:00000001 r7:00000000 r6:00000001 r5:c30f1800 r4:c318f80= 0 [ 6.327944] [] (pci_msi_setup_msi_irqs.constprop.0) from [] (__pci_enable_msi_range+0x224/0x39c) [ 6.338483] [] (__pci_enable_msi_range) from [] (pc= i_alloc_irq_vectors_affinity+0x114/0x158) [ 6.348680] r10:c16815f8 r9:c23b1ae0 r8:00000001 r7:00000000 r6:c30f18= 00 r5:00000001 [ 6.356515] r4:00000002 [ 6.359048] [] (pci_alloc_irq_vectors_affinity) from [] (ahci_init_one+0x500/0x958) [ 6.368468] r9:00000000 r8:c318e200 r7:00000005 r6:c308c940 r5:c30f180= 0 r4:00000000 [ 6.376215] [] (ahci_init_one) from [] (pci_device_= probe+0xb8/0x14c) [ 6.384331] r10:c16815f8 r9:c1611408 r8:c1611438 r7:00000000 r6:c30f18= 00 r5:c0fb66a8 [ 6.392166] r4:c30f1880 [ 6.394699] [] (pci_device_probe) from [] (really_p= robe+0x220/0x50c) [ 6.402813] r9:c1611438 r8:00000000 r7:c16f9ec0 r6:00000000 r5:c16f9eb= 8 r4:c30f1880 [ 6.410560] [] (really_probe) from [] (driver_probe= _device+0x88/0x1fc) [ 6.418849] r10:00000000 r9:c31790c0 r8:c16815f8 r7:c30f1880 r6:c23b1c= ac r5:c1611438 [ 6.426684] r4:c30f1880 [ 6.429217] [] (driver_probe_device) from [] (__dev= ice_attach_driver+0xa8/0x114) [ 6.438374] r9:c31790c0 r8:c2336410 r7:c30f1880 r6:c23b1cac r5:c161143= 8 r4:00000001 [ 6.446121] [] (__device_attach_driver) from [] (bu= s_for_each_drv+0x94/0xe4) [ 6.454928] r7:c30efa40 r6:c0717eb0 r5:c23b1cac r4:00000000 [ 6.460589] [] (bus_for_each_drv) from [] (__device= _attach+0x104/0x19c) [ 6.468960] r6:00000000 r5:c30f18c4 r4:c30f1880 [ 6.473577] [] (__device_attach) from [] (device_at= tach+0x1c/0x20) [ 6.481515] r6:c238d000 r5:c30f1880 r4:c30f1800 [ 6.486132] [] (device_attach) from [] (pci_bus_add= _device+0x54/0x94) [ 6.494326] [] (pci_bus_add_device) from [] (pci_bu= s_add_devices+0x3c/0x80) [ 6.503042] r5:c238d014 r4:c30f1800 [ 6.506617] [] (pci_bus_add_devices) from [] (pci_b= us_add_devices+0x70/0x80) [ 6.515422] r7:c30efa40 r6:c238ec00 r5:c238ec14 r4:c30f0800 [ 6.521082] [] (pci_bus_add_devices) from [] (pci_h= ost_probe+0x50/0xa0) [ 6.529454] r7:c30efa40 r6:c238ec00 r5:c238ec0c r4:00000000 [ 6.535114] [] (pci_host_probe) from [] (mtk_pcie_p= robe+0x188/0x250) [ 6.543228] r7:c30efa40 r6:c30efa4c r5:c30ef800 r4:c30d4b80 [ 6.548889] [] (mtk_pcie_probe) from [] (platform_p= robe+0x6c/0xc8) [ 6.556830] r10:c16815f8 r9:c15f8c9c r8:00000000 r7:c16f9ec0 r6:c15f8c= 9c r5:c2336410 [ 6.564667] r4:00000000 r3:c062d0ac [ 6.568242] [] (platform_probe) from [] (really_pro= be+0x220/0x50c) [ 6.576181] r7:c16f9ec0 r6:00000000 r5:c16f9eb8 r4:c2336410 [ 6.581842] [] (really_probe) from [] (driver_probe= _device+0x88/0x1fc) [ 6.590130] r10:c2336410 r9:c12b6910 r8:c16815f8 r7:c2336410 r6:c23b1e= 7c r5:c15f8c9c [ 6.597965] r4:c2336410 [ 6.600498] [] (driver_probe_device) from [] (__dev= ice_attach_driver+0xa8/0x114) [ 6.609655] r9:c12b6910 r8:c16815f8 r7:c2336410 r6:c23b1e7c r5:c15f8c9= c r4:00000001 [ 6.617401] [] (__device_attach_driver) from [] (bu= s_for_each_drv+0x94/0xe4) [ 6.626209] r7:c1606130 r6:c0717eb0 r5:c23b1e7c r4:00000000 [ 6.631870] [] (bus_for_each_drv) from [] (__device= _attach+0x104/0x19c) [ 6.640241] r6:00000001 r5:c2336454 r4:c2336410 [ 6.644859] [] (__device_attach) from [] (device_in= itial_probe+0x1c/0x20) [ 6.653405] r6:c2336410 r5:c16063d8 r4:c2315e54 [ 6.658022] [] (device_initial_probe) from [] (bus_= probe_device+0x94/0x9c) [ 6.666652] [] (bus_probe_device) from [] (deferred= _probe_work_func+0x9c/0xe0) [ 6.675633] r7:c1606130 r6:c160611c r5:c160611c r4:c2315e54 [ 6.681294] [] (deferred_probe_work_func) from [] (= process_one_work+0x1c8/0x530) [ 6.690452] r10:00000000 r9:c1673d00 r8:00000000 r7:df59b900 r6:df5987= 40 r5:c2383a80 [ 6.698287] r4:c160615c r3:c0716888 [ 6.701862] [] (process_one_work) from [] (worker_t= hread+0x234/0x534) [ 6.710062] r10:df598740 r9:00000008 r8:c1503d00 r7:df598758 r6:c2383a= 94 r5:df598740 [ 6.717897] r4:c2383a80 [ 6.720430] [] (worker_thread) from [] (kthread+0x1= 30/0x158) [ 6.727847] r10:c22410a4 r9:c2383a80 r8:c0145228 r7:c23b0000 r6:c214de= 8c r5:c23995c0 [ 6.735682] r4:c2241080 [ 6.738216] [] (kthread) from [] (ret_from_fork+0x1= 4/0x24) [ 6.745453] Exception stack(0xc23b1fb0 to 0xc23b1ff8) [ 6.750512] 1fa0: 00000000 00000000= 00000000 00000000 [ 6.758699] 1fc0: 00000000 00000000 00000000 00000000 00000000 00000000= 00000000 00000000 [ 6.766885] 1fe0: 00000000 00000000 00000000 00000000 00000013 00000000 [ 6.773508] r10:00000000 r9:00000000 r8:00000000 r7:00000000 r6:000000= 00 r5:c014d7ac [ 6.781344] r4:c23995c0 r3:00000001 [ 6.784944] ---[ end trace b6842aa211313a7f ]--- [ 6.789572] ------------[ cut here ]------------ [ 6.794205] WARNING: CPU: 0 PID: 33 at include/linux/msi.h:258 free_msi= _irqs+0x1c8/0x1cc [ 6.802327] Modules linked in: [ 6.805388] CPU: 0 PID: 33 Comm: kworker/0:1 Tainted: G W = 5.11.0-rc1-bpi-r2-wifi #1 [ 6.814358] Hardware name: Mediatek Cortex-A7 (Device Tree) [ 6.819935] Workqueue: events deferred_probe_work_func [ 6.825085] Backtrace: [ 6.827534] [] (dump_backtrace) from [] (show_stack= +0x20/0x24) [ 6.835130] r7:00000102 r6:60000013 r5:00000000 r4:c15eff8c [ 6.840790] [] (show_stack) from [] (dump_stack+0xc= c/0xe0) [ 6.848030] [] (dump_stack) from [] (__warn+0xfc/0x= 114) [ 6.855008] r7:00000102 r6:c061e31c r5:00000009 r4:c129b5b0 [ 6.860668] [] (__warn) from [] (warn_slowpath_fmt+= 0x74/0xd0) [ 6.868171] r7:c061e31c r6:00000102 r5:c129b5b0 r4:00000000 [ 6.873831] [] (warn_slowpath_fmt) from [] (free_ms= i_irqs+0x1c8/0x1cc) [ 6.882119] r8:00000001 r7:c30f1800 r6:c30f19dc r5:c30f1800 r4:c30f19d= c [ 6.888821] [] (free_msi_irqs) from [] (__pci_enabl= e_msi_range+0x2cc/0x39c) [ 6.897541] r10:00000001 r9:ffffffed r8:00000001 r7:00000000 r6:000000= 01 r5:c30f1800 [ 6.905377] r4:c318f800 r3:00000000 [ 6.908951] [] (__pci_enable_msi_range) from [] (pc= i_alloc_irq_vectors_affinity+0x114/0x158) [ 6.919149] r10:c16815f8 r9:c23b1ae0 r8:00000001 r7:00000000 r6:c30f18= 00 r5:00000001 [ 6.926984] r4:00000002 [ 6.929517] [] (pci_alloc_irq_vectors_affinity) from [] (ahci_init_one+0x500/0x958) [ 6.938936] r9:00000000 r8:c318e200 r7:00000005 r6:c308c940 r5:c30f180= 0 r4:00000000 [ 6.946683] [] (ahci_init_one) from [] (pci_device_= probe+0xb8/0x14c) [ 6.954798] r10:c16815f8 r9:c1611408 r8:c1611438 r7:00000000 r6:c30f18= 00 r5:c0fb66a8 [ 6.962634] r4:c30f1880 [ 6.965166] [] (pci_device_probe) from [] (really_p= robe+0x220/0x50c) [ 6.973280] r9:c1611438 r8:00000000 r7:c16f9ec0 r6:00000000 r5:c16f9eb= 8 r4:c30f1880 [ 6.981027] [] (really_probe) from [] (driver_probe= _device+0x88/0x1fc) [ 6.989316] r10:00000000 r9:c31790c0 r8:c16815f8 r7:c30f1880 r6:c23b1c= ac r5:c1611438 [ 6.997151] r4:c30f1880 [ 6.999683] [] (driver_probe_device) from [] (__dev= ice_attach_driver+0xa8/0x114) [ 7.008840] r9:c31790c0 r8:c2336410 r7:c30f1880 r6:c23b1cac r5:c161143= 8 r4:00000001 [ 7.016587] [] (__device_attach_driver) from [] (bu= s_for_each_drv+0x94/0xe4) [ 7.025395] r7:c30efa40 r6:c0717eb0 r5:c23b1cac r4:00000000 [ 7.031055] [] (bus_for_each_drv) from [] (__device= _attach+0x104/0x19c) [ 7.039427] r6:00000000 r5:c30f18c4 r4:c30f1880 [ 7.044043] [] (__device_attach) from [] (device_at= tach+0x1c/0x20) [ 7.051980] r6:c238d000 r5:c30f1880 r4:c30f1800 [ 7.056598] [] (device_attach) from [] (pci_bus_add= _device+0x54/0x94) [ 7.064793] [] (pci_bus_add_device) from [] (pci_bu= s_add_devices+0x3c/0x80) [ 7.073509] r5:c238d014 r4:c30f1800 [ 7.077084] [] (pci_bus_add_devices) from [] (pci_b= us_add_devices+0x70/0x80) [ 7.085889] r7:c30efa40 r6:c238ec00 r5:c238ec14 r4:c30f0800 [ 7.091549] [] (pci_bus_add_devices) from [] (pci_h= ost_probe+0x50/0xa0) [ 7.099920] r7:c30efa40 r6:c238ec00 r5:c238ec0c r4:00000000 [ 7.105581] [] (pci_host_probe) from [] (mtk_pcie_p= robe+0x188/0x250) [ 7.113694] r7:c30efa40 r6:c30efa4c r5:c30ef800 r4:c30d4b80 [ 7.119354] [] (mtk_pcie_probe) from [] (platform_p= robe+0x6c/0xc8) [ 7.127296] r10:c16815f8 r9:c15f8c9c r8:00000000 r7:c16f9ec0 r6:c15f8c= 9c r5:c2336410 [ 7.135132] r4:00000000 r3:c062d0ac [ 7.138706] [] (platform_probe) from [] (really_pro= be+0x220/0x50c) [ 7.146646] r7:c16f9ec0 r6:00000000 r5:c16f9eb8 r4:c2336410 [ 7.152306] [] (really_probe) from [] (driver_probe= _device+0x88/0x1fc) [ 7.160594] r10:c2336410 r9:c12b6910 r8:c16815f8 r7:c2336410 r6:c23b1e= 7c r5:c15f8c9c [ 7.168430] r4:c2336410 [ 7.170962] [] (driver_probe_device) from [] (__dev= ice_attach_driver+0xa8/0x114) [ 7.180119] r9:c12b6910 r8:c16815f8 r7:c2336410 r6:c23b1e7c r5:c15f8c9= c r4:00000001 [ 7.187866] [] (__device_attach_driver) from [] (bu= s_for_each_drv+0x94/0xe4) [ 7.196672] r7:c1606130 r6:c0717eb0 r5:c23b1e7c r4:00000000 [ 7.202333] [] (bus_for_each_drv) from [] (__device= _attach+0x104/0x19c) [ 7.210704] r6:00000001 r5:c2336454 r4:c2336410 [ 7.215321] [] (__device_attach) from [] (device_in= itial_probe+0x1c/0x20) [ 7.223867] r6:c2336410 r5:c16063d8 r4:c2315e54 [ 7.228484] [] (device_initial_probe) from [] (bus_= probe_device+0x94/0x9c) [ 7.237114] [] (bus_probe_device) from [] (deferred= _probe_work_func+0x9c/0xe0) [ 7.246095] r7:c1606130 r6:c160611c r5:c160611c r4:c2315e54 [ 7.251756] [] (deferred_probe_work_func) from [] (= process_one_work+0x1c8/0x530) [ 7.260912] r10:00000000 r9:c1673d00 r8:00000000 r7:df59b900 r6:df5987= 40 r5:c2383a80 [ 7.268748] r4:c160615c r3:c0716888 [ 7.272323] [] (process_one_work) from [] (worker_t= hread+0x234/0x534) [ 7.280523] r10:df598740 r9:00000008 r8:c1503d00 r7:df598758 r6:c2383a= 94 r5:df598740 [ 7.288358] r4:c2383a80 [ 7.290890] [] (worker_thread) from [] (kthread+0x1= 30/0x158) [ 7.298306] r10:c22410a4 r9:c2383a80 r8:c0145228 r7:c23b0000 r6:c214de= 8c r5:c23995c0 [ 7.306141] r4:c2241080 [ 7.308674] [] (kthread) from [] (ret_from_fork+0x1= 4/0x24) [ 7.315910] Exception stack(0xc23b1fb0 to 0xc23b1ff8) [ 7.320968] 1fa0: 00000000 00000000= 00000000 00000000 [ 7.329155] 1fc0: 00000000 00000000 00000000 00000000 00000000 00000000= 00000000 00000000 [ 7.337341] 1fe0: 00000000 00000000 00000000 00000000 00000013 00000000 [ 7.343964] r10:00000000 r9:00000000 r8:00000000 r7:00000000 r6:000000= 00 r5:c014d7ac [ 7.351799] r4:c23995c0 r3:00000001 [ 7.355410] ---[ end trace b6842aa211313a80 ]--- regards Frank