From patchwork Fri Sep 4 13:27:33 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Kai Vehmanen X-Patchwork-Id: 251135 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=-13.0 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID, HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH, MAILING_LIST_MULTI, SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT 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 A87E1C43461 for ; Fri, 4 Sep 2020 13:33:01 +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 20AE42078E for ; Fri, 4 Sep 2020 13:33:01 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=alsa-project.org header.i=@alsa-project.org header.b="ZMHiQY7W" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 20AE42078E 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 974A61B00; Fri, 4 Sep 2020 15:32:09 +0200 (CEST) DKIM-Filter: OpenDKIM Filter v2.11.0 alsa0.perex.cz 974A61B00 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=alsa-project.org; s=default; t=1599226379; bh=jcOEvJWUtJ0nyPs9aK7IwQQaryD6zNUsGPa7+oOXSIw=; h=From:To:Subject:Date:In-Reply-To:References:Cc:List-Id: List-Unsubscribe:List-Archive:List-Post:List-Help:List-Subscribe: From; b=ZMHiQY7WZoGq2JIVUUv59wuHhzLJhOj1tFxzxVHo2K7QIcQQEIfPrh8/PhGgGZH0e atHJPrP0kcDjFSsT3l12cl/2RuVJfU4LQo3Dm1hD3gCpH4YkffhosLYwagjbood3vO qiRnhkTzYzLLgVnZHp/JuN+vKtbK8QcPZatqBUaI= Received: from alsa1.perex.cz (localhost.localdomain [127.0.0.1]) by alsa1.perex.cz (Postfix) with ESMTP id D1BA0F80268; Fri, 4 Sep 2020 15:29:54 +0200 (CEST) Received: by alsa1.perex.cz (Postfix, from userid 50401) id 468D6F802E9; Fri, 4 Sep 2020 15:29:53 +0200 (CEST) Received: from mga12.intel.com (mga12.intel.com [192.55.52.136]) (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 B937CF801DA for ; Fri, 4 Sep 2020 15:29:41 +0200 (CEST) DKIM-Filter: OpenDKIM Filter v2.11.0 alsa1.perex.cz B937CF801DA IronPort-SDR: 4fNOSW+BBZbmvZQOUP7nQnN8eJ0oKNT6GKcchrzV/pON68FIhXMB5m6ikAhkkHh+7XAx49G7nL a9sXQvWYOc5w== X-IronPort-AV: E=McAfee;i="6000,8403,9733"; a="137259560" X-IronPort-AV: E=Sophos;i="5.76,389,1592895600"; d="scan'208";a="137259560" X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from fmsmga008.fm.intel.com ([10.253.24.58]) by fmsmga106.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 04 Sep 2020 06:29:39 -0700 IronPort-SDR: BXa9/td1v241rsvKXCx7pB3BJEjeNghe+CEDIk34norpbH01tahhlysf7kLh6ymNrgCeMbcph4 PXWQ75TK/q/A== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.76,389,1592895600"; d="scan'208";a="284416713" Received: from eliteleevi.tm.intel.com ([10.237.54.20]) by fmsmga008.fm.intel.com with ESMTP; 04 Sep 2020 06:29:37 -0700 From: Kai Vehmanen To: alsa-devel@alsa-project.org, broonie@kernel.org Subject: [PATCH 05/16] ASoC: SOF: use the sof_ipc_comp reserved bytes for extended data Date: Fri, 4 Sep 2020 16:27:33 +0300 Message-Id: <20200904132744.1699575-6-kai.vehmanen@linux.intel.com> X-Mailer: git-send-email 2.27.0 In-Reply-To: <20200904132744.1699575-1-kai.vehmanen@linux.intel.com> References: <20200904132744.1699575-1-kai.vehmanen@linux.intel.com> MIME-Version: 1.0 Cc: kai.vehmanen@linux.intel.com, Keyon Jie , lgirdwood@gmail.com, pierre-louis.bossart@linux.intel.com, ranjani.sridharan@linux.intel.com, daniel.baluta@nxp.com 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: , Errors-To: alsa-devel-bounces@alsa-project.org Sender: "Alsa-devel" From: Keyon Jie Use the 32bit reserved member of the struct sof_ipc_comp as the extended data length, this will help to minimize the ABI change for adding new extended data to the struct sof_ipc_comp, usually only minor ABI version bump needed for every update with this new solution. Signed-off-by: Keyon Jie Reviewed-by: Ranjani Sridharan Signed-off-by: Kai Vehmanen --- include/sound/sof/topology.h | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/include/sound/sof/topology.h b/include/sound/sof/topology.h index 796b6c8e851d..d12736e14b69 100644 --- a/include/sound/sof/topology.h +++ b/include/sound/sof/topology.h @@ -57,8 +57,8 @@ struct sof_ipc_comp { uint32_t pipeline_id; uint32_t core; - /* reserved for future use */ - uint32_t reserved[1]; + /* extended data length, 0 if no extended data */ + uint32_t ext_data_length; } __packed; /*