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=-18.8 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER, INCLUDES_PATCH,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,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 B196EC433ED for ; Fri, 2 Apr 2021 15:51:27 +0000 (UTC) Received: from lists.xenproject.org (lists.xenproject.org [192.237.175.120]) (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 6429B61158 for ; Fri, 2 Apr 2021 15:51:27 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 6429B61158 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=xen.org Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=xen-devel-bounces@lists.xenproject.org Received: from list by lists.xenproject.org with outflank-mailman.104905.200925 (Exim 4.92) (envelope-from ) id 1lSM4l-0007GX-Tl; Fri, 02 Apr 2021 15:51:11 +0000 X-Outflank-Mailman: Message body and most headers restored to incoming version Received: by outflank-mailman (output) from mailman id 104905.200925; Fri, 02 Apr 2021 15:51:11 +0000 Received: from localhost ([127.0.0.1] helo=lists.xenproject.org) by lists.xenproject.org with esmtp (Exim 4.92) (envelope-from ) id 1lSM4l-0007GQ-Qc; Fri, 02 Apr 2021 15:51:11 +0000 Received: by outflank-mailman (input) for mailman id 104905; Fri, 02 Apr 2021 15:51:11 +0000 Received: from mail.xenproject.org ([104.130.215.37]) by lists.xenproject.org with esmtp (Exim 4.92) (envelope-from ) id 1lSM4k-0007GL-Rs for xen-devel@lists.xenproject.org; Fri, 02 Apr 2021 15:51:10 +0000 Received: from xenbits.xenproject.org ([104.239.192.120]) by mail.xenproject.org with esmtp (Exim 4.92) (envelope-from ) id 1lSM4k-0000dr-G1; Fri, 02 Apr 2021 15:51:10 +0000 Received: from 54-240-197-235.amazon.com ([54.240.197.235] helo=ufe34d9ed68d054.ant.amazon.com) by xenbits.xenproject.org with esmtpsa (TLS1.3:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1lSM4k-0007En-4r; Fri, 02 Apr 2021 15:51:10 +0000 X-BeenThere: xen-devel@lists.xenproject.org List-Id: Xen developer discussion List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Errors-To: xen-devel-bounces@lists.xenproject.org Precedence: list Sender: "Xen-devel" DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=xen.org; s=20200302mail; h=Message-Id:Date:Subject:Cc:To:From; bh=96ZKz1XmVWDUX9O90srYP7TKBuT4+NLELAxUsP7ryl8=; b=R4hgIoOsFE7yXyA2OwciAkNIAM JOsokbamE5Wb/jU0E4TABqEXBTjR3KJMCyLKaSuKiOUaZlExQin/Uf04QYirrtLJbNs9xv3ohN1mv j9fF0TE7/Cz4Lg2kYmRaPBXDiJY2zMj8SlRnE3SoZM4qyefXe14SJ8Wcnaboog22DjBY=; From: Julien Grall To: xen-devel@lists.xenproject.org Cc: bertrand.marquis@arm.com, Julien Grall , Stefano Stabellini , Julien Grall , Volodymyr Babchuk Subject: [PATCH v2] xen/iommu: smmu: Silence clang in arm_smmu_device_dt_probe() Date: Fri, 2 Apr 2021 16:51:06 +0100 Message-Id: <20210402155106.15486-1-julien@xen.org> X-Mailer: git-send-email 2.17.1 From: Julien Grall Clang 11 will throw the following error: smmu.c:2284:18: error: cast to smaller integer type 'enum arm_smmu_arch_version' from 'const void *' [-Werror,-Wvoid-pointer-to-enum-cast] smmu->version = (enum arm_smmu_arch_version)of_id->data; ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ The error can be prevented by initially casting to (uintptr_t) and then enum. Signed-off-by: Julien Grall --- Changes in v2: - Cast to (uintptr_t) rather than introduce separate pointer (requested by Andrew). Only build tested --- xen/drivers/passthrough/arm/smmu.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/xen/drivers/passthrough/arm/smmu.c b/xen/drivers/passthrough/arm/smmu.c index 20ac672e91b6..fab7be8b48bb 100644 --- a/xen/drivers/passthrough/arm/smmu.c +++ b/xen/drivers/passthrough/arm/smmu.c @@ -2382,7 +2382,7 @@ static int arm_smmu_device_dt_probe(struct platform_device *pdev) smmu->dev = dev; of_id = of_match_node(arm_smmu_of_match, dev->of_node); - smmu->version = (enum arm_smmu_arch_version)of_id->data; + smmu->version = (enum arm_smmu_arch_version)(uintptr_t)of_id->data; res = platform_get_resource(pdev, IORESOURCE_MEM, 0); smmu->base = devm_ioremap_resource(dev, res); -- 2.17.1