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=-5.2 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI,SPF_HELO_NONE, SPF_PASS,URIBL_BLOCKED,USER_AGENT_SANE_1 autolearn=ham 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 A83B0C34355 for ; Fri, 13 Dec 2019 20:41:53 +0000 (UTC) Received: from alsa0.perex.cz (alsa0.perex.cz [77.48.224.243]) (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 2682F2469F for ; Fri, 13 Dec 2019 20:41:51 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=alsa-project.org header.i=@alsa-project.org header.b="SLjvvmHu" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 2682F2469F Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=linux.intel.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=alsa-devel-bounces@alsa-project.org Received: from alsa1.perex.cz (alsa1.perex.cz [207.180.221.201]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by alsa0.perex.cz (Postfix) with ESMTPS id D4FEE17A4; Fri, 13 Dec 2019 16:55:20 +0100 (CET) DKIM-Filter: OpenDKIM Filter v2.11.0 alsa0.perex.cz D4FEE17A4 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=alsa-project.org; s=default; t=1576252570; bh=D8jDzNaW2ygYJMOPWwAkujMDKbmvCvn5Ocvke48jnKc=; h=To:References:From:Date:In-Reply-To:Cc:Subject:List-Id: List-Unsubscribe:List-Archive:List-Post:List-Help:List-Subscribe: From; b=SLjvvmHuGUsSoAfgVKCLZv3+vc0EswDjmqzuj1Z6y38KsYH5WSOpXt/9z2xsh0Z2f GLDSR6UVNagr5TE7XuS7Eweglj5tXPP6kkW+43lf83qrN15YdzqNLu+LWV3NgxH7jB zNcxoEwM94UWndbVWxDCYGshcGB770TOyEMKfw30= Received: from alsa1.perex.cz (localhost.localdomain [127.0.0.1]) by alsa1.perex.cz (Postfix) with ESMTP id 282A2F80234; Fri, 13 Dec 2019 16:54:30 +0100 (CET) Received: by alsa1.perex.cz (Postfix, from userid 50401) id 2F12EF8019B; Fri, 13 Dec 2019 16:54:26 +0100 (CET) Received: from mga04.intel.com (mga04.intel.com [192.55.52.120]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by alsa1.perex.cz (Postfix) with ESMTPS id 7A7CAF8019B for ; Fri, 13 Dec 2019 16:54:22 +0100 (CET) DKIM-Filter: OpenDKIM Filter v2.11.0 alsa1.perex.cz 7A7CAF8019B X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from fmsmga002.fm.intel.com ([10.253.24.26]) by fmsmga104.fm.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 13 Dec 2019 07:54:18 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.69,309,1571727600"; d="scan'208";a="246170754" Received: from dbmoens-mobl1.amr.corp.intel.com ([10.255.228.102]) by fmsmga002.fm.intel.com with ESMTP; 13 Dec 2019 07:54:17 -0800 To: Greg KH References: <20191213050409.12776-1-pierre-louis.bossart@linux.intel.com> <20191213050409.12776-8-pierre-louis.bossart@linux.intel.com> <20191213072231.GE1750354@kroah.com> From: Pierre-Louis Bossart Message-ID: <032e6505-22b6-45bb-ff04-87db1f8d8be9@linux.intel.com> Date: Fri, 13 Dec 2019 09:11:27 -0600 User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.14; rv:68.0) Gecko/20100101 Thunderbird/68.3.0 MIME-Version: 1.0 In-Reply-To: <20191213072231.GE1750354@kroah.com> Content-Language: en-US Cc: alsa-devel@alsa-project.org, tiwai@suse.de, linux-kernel@vger.kernel.org, Ranjani Sridharan , vkoul@kernel.org, broonie@kernel.org, srinivas.kandagatla@linaro.org, jank@cadence.com, slawomir.blauciak@intel.com, Sanyog Kale , Bard liao , Rander Wang Subject: Re: [alsa-devel] [PATCH v4 07/15] soundwire: slave: move uevent handling to slave X-BeenThere: alsa-devel@alsa-project.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: "Alsa-devel mailing list for ALSA developers - http://www.alsa-project.org" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Transfer-Encoding: 7bit Content-Type: text/plain; charset="us-ascii"; Format="flowed" Errors-To: alsa-devel-bounces@alsa-project.org Sender: "Alsa-devel" On 12/13/19 1:22 AM, Greg KH wrote: > On Thu, Dec 12, 2019 at 11:04:01PM -0600, Pierre-Louis Bossart wrote: >> Currently the code deals with uevents at the bus level, but we only care >> for Slave events > > What does this mean? I can't understand it, can you please provide more > information on what you are doing here? In the earlier versions of the patch, the code looks like this and there was an open on what to do with a master-specific event. static int sdw_uevent(struct device *dev, struct kobj_uevent_env *env) { + struct sdw_master_device *md; struct sdw_slave *slave; char modalias[32]; - if (is_sdw_slave(dev)) { + if (is_sdw_md(dev)) { + md = to_sdw_master_device(dev); + /* TODO: do we need to call add_uevent_var() ? */ + } else if (is_sdw_slave(dev)) { slave = to_sdw_slave_device(dev); + + sdw_slave_modalias(slave, modalias, sizeof(modalias)); + + if (add_uevent_var(env, "MODALIAS=%s", modalias)) + return -ENOMEM; } else { dev_warn(dev, "uevent for unknown Soundwire type\n"); return -EINVAL; } Vinod suggested this was not needed and suggested the code for uevents be moved to be slave-specific, which is what this patch does. >> diff --git a/drivers/soundwire/slave.c b/drivers/soundwire/slave.c >> index c87267f12a3b..014c3ece1f17 100644 >> --- a/drivers/soundwire/slave.c >> +++ b/drivers/soundwire/slave.c >> @@ -17,6 +17,7 @@ static void sdw_slave_release(struct device *dev) >> struct device_type sdw_slave_type = { >> .name = "sdw_slave", >> .release = sdw_slave_release, >> + .uevent = sdw_uevent, > > Align this with the other ones? > > does this cause any different functionality? As mentioned above, this move was suggested by Vinod. I don't have a specific need for uevents for the master and there's no functionality limitation, that said this is way beyond my comfort zone so I will follow recommendations, if any. _______________________________________________ Alsa-devel mailing list Alsa-devel@alsa-project.org https://mailman.alsa-project.org/mailman/listinfo/alsa-devel