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 Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id B3507C25B75 for ; Wed, 15 May 2024 05:18:32 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:List-Subscribe:List-Help :List-Post:List-Archive:List-Unsubscribe:List-Id:Content-Type:MIME-Version: Message-ID:In-Reply-To:Date:References:Subject:Cc:To:From:Reply-To: Content-Transfer-Encoding:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=xR7f9V/iTgv7DH3sO+x6YsdmBLjEDNqeJUzrhK30ZYU=; b=mq6Ry726RvgHvhO/98kxynaA7w FujDtihdhDx+OVLIiTUNukL/HERfwh5XrZX0FEghmnGyhYpBtDp7xvnr7Lq90+YGaVz5OIRtXBAYH gZ/f9IyvzPfSzhC7i4UMmJOKeK5Onmqo8q2iR443GDdY/wSg5SosOzX7TozfYHxlPSNb2mM9x3mIG OOUePy5xBKe/JW2NR0AQBfjVcRKShI+zr4Jqxevvd9oK081BuM82s18Ds7wRg5Yz/o47Yc6qA/rX/ 3fP5lj3Q/dCKEDUs42I6KdmmmvMoJV7HuHDjaAgBp3qy0i+kJmDeFt1aJzoy5httgOQrX/b2JtYaX wECxnAmw==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.97.1 #2 (Red Hat Linux)) id 1s7725-00000000V4a-0ItQ; Wed, 15 May 2024 05:18:29 +0000 Received: from sin.source.kernel.org ([2604:1380:40e1:4800::1]) by bombadil.infradead.org with esmtps (Exim 4.97.1 #2 (Red Hat Linux)) id 1s7721-00000000V3g-0kuI; Wed, 15 May 2024 05:18:27 +0000 Received: from smtp.kernel.org (transwarp.subspace.kernel.org [100.75.92.58]) by sin.source.kernel.org (Postfix) with ESMTP id 6164BCE12E4; Wed, 15 May 2024 05:18:22 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 26FC3C116B1; Wed, 15 May 2024 05:18:17 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1715750301; bh=pfGH+jZh96pLnw4AOvxaMZ9eBTglQ+T1HiwE848Yk3E=; h=From:To:Cc:Subject:References:Date:In-Reply-To:From; b=V2eiE7ruo0tGAGMwLasu7rmCOrV00BqN3Zt98BuZfOuqBuyWInZt0/vKTst7Ib/ft QnFFDt3al5+S1xF7UgnabhgchQsko+cMMErRtvGUbYmuKmfx8fCI9uqlMlur3cE0I0 H1nuno4m9bYoM2RUwqhmsGTLhgi6Nsok1S28dnfUKLeIahig+qACKWtuzAB1MVYeQE px+ASAGpyJ/gCnLu2FNElh4NmdmWlGn85yOIRrVXNgly7Sie+7dIMLwSewx+Lk9ZgJ 92qBxuc6LX/bT1rW0IbrB2REq3c2SZiuLMBpaSavGVJ5E56Nb/pF4K1NnUvai41dUU A2WWhovzEawbA== From: Kalle Valo To: Oleksandr Natalenko Cc: linux-kernel@vger.kernel.org, linux-wireless@vger.kernel.org, "Linux regression tracking (Thorsten Leemhuis)" , linux-mediatek@lists.infradead.org, linux-arm-kernel@lists.infradead.org, Felix Fietkau , Lorenzo Bianconi , Ryder Lee , Shayne Chen , Sean Wang , Matthias Brugger , AngeloGioacchino Del Regno , Peter Chiu , StanleyYP Wang , Linux regressions mailing list Subject: Re: [REGRESSION] MT7915E doesn't work any more with v6.9 References: <6061263.lOV4Wx5bFT@natalenko.name> Date: Wed, 15 May 2024 08:18:16 +0300 In-Reply-To: <6061263.lOV4Wx5bFT@natalenko.name> (Oleksandr Natalenko's message of "Wed, 15 May 2024 00:43:40 +0200") Message-ID: <87le4birfr.fsf@kernel.org> User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/28.2 (gnu/linux) MIME-Version: 1.0 Content-Type: text/plain X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20240514_221825_904381_2ABE1325 X-CRM114-Status: GOOD ( 11.83 ) X-BeenThere: linux-mediatek@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "Linux-mediatek" Errors-To: linux-mediatek-bounces+linux-mediatek=archiver.kernel.org@lists.infradead.org Oleksandr Natalenko writes: > Hello Felix, Lorenzo et al. > > With v6.9 kernel the following card: > > 01:00.0 Unclassified device [0002]: MEDIATEK Corp. MT7915E 802.11ax > PCI Express Wireless Network Adapter [14c3:7915] > > doesn't work any more. Upon mt7915e module insertion the following splat happens: > > mt7915e 0000:01:00.0: enabling device (0000 -> 0002) > WARNING: CPU: 3 PID: 1648 at net/mac80211/main.c:794 > ieee80211_alloc_hw_nm+0x9a3/0x9f0 [mac80211] > Call Trace: > > mt76_alloc_device+0x24/0x290 [mt76 46e2c4f11be089903469a4d6045c71cb7842b4cd] > mt7915_mmio_probe+0x33/0x1d0 [mt7915e 9657e1926e619568545a08636674805d5e665c85] > mt7915_pci_probe+0xe1/0x3a0 [mt7915e 9657e1926e619568545a08636674805d5e665c85] > pci_device_probe+0xf0/0x2d0 > really_probe+0xde/0x3b0 > __driver_probe_device+0x78/0x110 > driver_probe_device+0x1f/0x130 > __driver_attach+0x91/0x1e0 > bus_for_each_dev+0x105/0x160 > bus_add_driver+0x137/0x270 > driver_register+0x72/0xd0 > mt7915_init+0x44/0xff0 [mt7915e 9657e1926e619568545a08636674805d5e665c85] > do_one_initcall+0x5b/0x310 > do_init_module+0x60/0x220 > init_module_from_file+0x89/0xe0 > idempotent_init_module+0x121/0x2b0 > __x64_sys_finit_module+0x5e/0xb0 > do_syscall_64+0x82/0x160 > entry_SYSCALL_64_after_hwframe+0x76/0x7e > mt7915e 0000:01:00.0: probe with driver mt7915e failed with error -12 > > and the card stays non-functional. Re-inserting the module triggers > the same behaviour. > > The following condition is triggered: > > 794 if (WARN_ON(!ops->add_chanctx || > 795 !ops->remove_chanctx || > 796 !ops->change_chanctx || > 797 !ops->assign_vif_chanctx || > 798 !ops->unassign_vif_chanctx)) > 799 return NULL; > > This worked with v6.8 and earlier just fine. Thanks for the report. I'll add this to regzbot for easier tracking: #regzbot introduced: v6.8..v6.9 ^ -- https://patchwork.kernel.org/project/linux-wireless/list/ https://wireless.wiki.kernel.org/en/developers/documentation/submittingpatches