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=-5.5 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED, USER_AGENT_MUTT autolearn=unavailable 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 E3BC5C28CC5 for ; Wed, 5 Jun 2019 22:57:58 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id C0AF12070B for ; Wed, 5 Jun 2019 22:57:58 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726581AbfFEW56 (ORCPT ); Wed, 5 Jun 2019 18:57:58 -0400 Received: from emh01.mail.saunalahti.fi ([62.142.5.107]:38866 "EHLO emh01.mail.saunalahti.fi" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726502AbfFEW56 (ORCPT ); Wed, 5 Jun 2019 18:57:58 -0400 X-Greylist: delayed 415 seconds by postgrey-1.27 at vger.kernel.org; Wed, 05 Jun 2019 18:57:57 EDT Received: from darkstar.musicnaut.iki.fi (85-76-64-161-nat.elisa-mobile.fi [85.76.64.161]) by emh01.mail.saunalahti.fi (Postfix) with ESMTP id DAC592002F; Thu, 6 Jun 2019 01:50:59 +0300 (EEST) Date: Thu, 6 Jun 2019 01:50:59 +0300 From: Aaro Koskinen To: Christoph Hellwig , Christian Zigotzky , Michael Ellerman , Larry Finger Cc: linux-kernel@vger.kernel.org, linux-wireless@vger.kernel.org, linuxppc-dev@lists.ozlabs.org Subject: [BISECTED REGRESSION] b43legacy broken on G4 PowerBook Message-ID: <20190605225059.GA9953@darkstar.musicnaut.iki.fi> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline User-Agent: Mutt/1.5.24 (2015-08-30) Sender: linux-wireless-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-wireless@vger.kernel.org Hi, When upgrading from v5.0 -> v5.1 on G4 PowerBook, I noticed WLAN does not work anymore: [ 42.004303] b43legacy-phy0: Loading firmware version 0x127, patch level 14 (2005-04-18 02:36:27) [ 42.184837] b43legacy-phy0 debug: Chip initialized [ 42.184873] b43legacy-phy0 ERROR: The machine/kernel does not support the required 30-bit DMA mask The same happens with the current mainline. Bisected to: commit 65a21b71f948406201e4f62e41f06513350ca390 Author: Christoph Hellwig Date: Wed Feb 13 08:01:26 2019 +0100 powerpc/dma: remove dma_nommu_dma_supported This function is largely identical to the generic version used everywhere else. Replace it with the generic version. Signed-off-by: Christoph Hellwig Tested-by: Christian Zigotzky Signed-off-by: Michael Ellerman A. 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=-5.5 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED, USER_AGENT_MUTT autolearn=unavailable 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 80339C28CC5 for ; Wed, 5 Jun 2019 22:52:48 +0000 (UTC) Received: from lists.ozlabs.org (lists.ozlabs.org [203.11.71.2]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id DF5072070B for ; Wed, 5 Jun 2019 22:52:47 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org DF5072070B Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=iki.fi Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=linuxppc-dev-bounces+linuxppc-dev=archiver.kernel.org@lists.ozlabs.org Received: from lists.ozlabs.org (lists.ozlabs.org [IPv6:2401:3900:2:1::3]) by lists.ozlabs.org (Postfix) with ESMTP id 45K3wF1PM6zDqfY for ; Thu, 6 Jun 2019 08:52:45 +1000 (AEST) Authentication-Results: lists.ozlabs.org; spf=neutral (mailfrom) smtp.mailfrom=iki.fi (client-ip=62.142.5.107; helo=emh01.mail.saunalahti.fi; envelope-from=aaro.koskinen@iki.fi; receiver=) Authentication-Results: lists.ozlabs.org; dmarc=fail (p=none dis=none) header.from=iki.fi Received: from emh01.mail.saunalahti.fi (emh01.mail.saunalahti.fi [62.142.5.107]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by lists.ozlabs.org (Postfix) with ESMTPS id 45K3tP5WzCzDqLx for ; Thu, 6 Jun 2019 08:51:06 +1000 (AEST) Received: from darkstar.musicnaut.iki.fi (85-76-64-161-nat.elisa-mobile.fi [85.76.64.161]) by emh01.mail.saunalahti.fi (Postfix) with ESMTP id DAC592002F; Thu, 6 Jun 2019 01:50:59 +0300 (EEST) Date: Thu, 6 Jun 2019 01:50:59 +0300 From: Aaro Koskinen To: Christoph Hellwig , Christian Zigotzky , Michael Ellerman , Larry Finger Subject: [BISECTED REGRESSION] b43legacy broken on G4 PowerBook Message-ID: <20190605225059.GA9953@darkstar.musicnaut.iki.fi> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline User-Agent: Mutt/1.5.24 (2015-08-30) X-BeenThere: linuxppc-dev@lists.ozlabs.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: linuxppc-dev@lists.ozlabs.org, linux-wireless@vger.kernel.org, linux-kernel@vger.kernel.org Errors-To: linuxppc-dev-bounces+linuxppc-dev=archiver.kernel.org@lists.ozlabs.org Sender: "Linuxppc-dev" Hi, When upgrading from v5.0 -> v5.1 on G4 PowerBook, I noticed WLAN does not work anymore: [ 42.004303] b43legacy-phy0: Loading firmware version 0x127, patch level 14 (2005-04-18 02:36:27) [ 42.184837] b43legacy-phy0 debug: Chip initialized [ 42.184873] b43legacy-phy0 ERROR: The machine/kernel does not support the required 30-bit DMA mask The same happens with the current mainline. Bisected to: commit 65a21b71f948406201e4f62e41f06513350ca390 Author: Christoph Hellwig Date: Wed Feb 13 08:01:26 2019 +0100 powerpc/dma: remove dma_nommu_dma_supported This function is largely identical to the generic version used everywhere else. Replace it with the generic version. Signed-off-by: Christoph Hellwig Tested-by: Christian Zigotzky Signed-off-by: Michael Ellerman A.