From patchwork Wed Jun 24 16:45:18 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Deepak Kumar Singh X-Patchwork-Id: 11623747 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 4C26692A for ; Wed, 24 Jun 2020 16:46:43 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 2BFB92082F for ; Wed, 24 Jun 2020 16:46:43 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="signature verification failed" (1024-bit key) header.d=mg.codeaurora.org header.i=@mg.codeaurora.org header.b="maaBQQms" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2404040AbgFXQqb (ORCPT ); Wed, 24 Jun 2020 12:46:31 -0400 Received: from m43-7.mailgun.net ([69.72.43.7]:13455 "EHLO m43-7.mailgun.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2404365AbgFXQq3 (ORCPT ); Wed, 24 Jun 2020 12:46:29 -0400 DKIM-Signature: a=rsa-sha256; v=1; c=relaxed/relaxed; d=mg.codeaurora.org; q=dns/txt; s=smtp; t=1593017188; h=References: In-Reply-To: Message-Id: Date: Subject: Cc: To: From: Sender; bh=FQW6R/Y5yszDbWH3tFWr/9C27YRcinGb1+LS8Db7YDE=; b=maaBQQmsfEzxqwhZGAMlZtpaNLhHli+ZAIOWVb6OlIP0kLg2x18XpJXBMe1WI/0scIweBnCZ zUG7kw8B9eJDNdGkl6loZIfCfSNRRKl+k5IBWyuHVgGMhH9YgvEPx5jdqeD4psz2ocbBNgif dgB2K9xZw7oHy8A9vz+YKCc13lo= X-Mailgun-Sending-Ip: 69.72.43.7 X-Mailgun-Sid: WyI4ZWZiZiIsICJsaW51eC1yZW1vdGVwcm9jQHZnZXIua2VybmVsLm9yZyIsICJiZTllNGEiXQ== Received: from smtp.codeaurora.org (ec2-35-166-182-171.us-west-2.compute.amazonaws.com [35.166.182.171]) by smtp-out-n17.prod.us-east-1.postgun.com with SMTP id 5ef38350567385e8e74b8105 (version=TLS1.2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256); Wed, 24 Jun 2020 16:46:08 GMT Received: by smtp.codeaurora.org (Postfix, from userid 1001) id 67C9CC433C6; Wed, 24 Jun 2020 16:46:07 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-caf-mail-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-1.0 required=2.0 tests=ALL_TRUSTED,SPF_NONE autolearn=ham autolearn_force=no version=3.4.0 Received: from deesin-linux.qualcomm.com (blr-c-bdr-fw-01_GlobalNAT_AllZones-Outside.qualcomm.com [103.229.19.19]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-SHA256 (128/128 bits)) (No client certificate requested) (Authenticated sender: deesin) by smtp.codeaurora.org (Postfix) with ESMTPSA id 2248AC433CB; Wed, 24 Jun 2020 16:46:03 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 smtp.codeaurora.org 2248AC433CB Authentication-Results: aws-us-west-2-caf-mail-1.web.codeaurora.org; dmarc=none (p=none dis=none) header.from=codeaurora.org Authentication-Results: aws-us-west-2-caf-mail-1.web.codeaurora.org; spf=none smtp.mailfrom=deesin@codeaurora.org From: Deepak Kumar Singh To: bjorn.andersson@linaro.org, clew@codeaurora.org, mathieu.poirier@linaro.org Cc: Deepak Kumar Singh , Arun Kumar Neelakantam , Andy Gross , Ohad Ben-Cohen , linux-arm-msm@vger.kernel.org (open list:ARM/QUALCOMM SUPPORT), linux-remoteproc@vger.kernel.org (open list:REMOTE PROCESSOR MESSAGING (RPMSG) SUBSYSTEM), linux-kernel@vger.kernel.org (open list) Subject: [PATCH V7 1/4] rpmsg: glink: Use complete_all for open states Date: Wed, 24 Jun 2020 22:15:18 +0530 Message-Id: <1593017121-7953-2-git-send-email-deesin@codeaurora.org> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1593017121-7953-1-git-send-email-deesin@codeaurora.org> References: <1593017121-7953-1-git-send-email-deesin@codeaurora.org> Sender: linux-remoteproc-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-remoteproc@vger.kernel.org From: Chris Lew The open_req and open_ack completion variables are the state variables to represet a remote channel as open. Use complete_all so there are no races with waiters and using completion_done. Signed-off-by: Chris Lew Signed-off-by: Deepak Kumar Singh Signed-off-by: Arun Kumar Neelakantam --- drivers/rpmsg/qcom_glink_native.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/drivers/rpmsg/qcom_glink_native.c b/drivers/rpmsg/qcom_glink_native.c index 1995f5b..d5114ab 100644 --- a/drivers/rpmsg/qcom_glink_native.c +++ b/drivers/rpmsg/qcom_glink_native.c @@ -970,7 +970,7 @@ static int qcom_glink_rx_open_ack(struct qcom_glink *glink, unsigned int lcid) return -EINVAL; } - complete(&channel->open_ack); + complete_all(&channel->open_ack); return 0; } @@ -1178,7 +1178,7 @@ static int qcom_glink_announce_create(struct rpmsg_device *rpdev) __be32 *val = defaults; int size; - if (glink->intentless) + if (glink->intentless || !completion_done(&channel->open_ack)) return 0; prop = of_find_property(np, "qcom,intents", NULL); @@ -1413,7 +1413,7 @@ static int qcom_glink_rx_open(struct qcom_glink *glink, unsigned int rcid, channel->rcid = ret; spin_unlock_irqrestore(&glink->idr_lock, flags); - complete(&channel->open_req); + complete_all(&channel->open_req); if (create_device) { rpdev = kzalloc(sizeof(*rpdev), GFP_KERNEL);