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=-9.1 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU,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 93DB7C282CE for ; Mon, 3 Jun 2019 14:05:33 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 5E3FE2792D for ; Mon, 3 Jun 2019 14:05:33 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=lca.pw header.i=@lca.pw header.b="N9Pr2jYV" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728840AbfFCOFc (ORCPT ); Mon, 3 Jun 2019 10:05:32 -0400 Received: from mail-qk1-f195.google.com ([209.85.222.195]:34836 "EHLO mail-qk1-f195.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1728699AbfFCOFc (ORCPT ); Mon, 3 Jun 2019 10:05:32 -0400 Received: by mail-qk1-f195.google.com with SMTP id l128so464292qke.2 for ; Mon, 03 Jun 2019 07:05:31 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=lca.pw; s=google; h=from:to:cc:subject:date:message-id; bh=nF9cQpios6fXc6OzV7zmvzF2+NBva4iLFuGACokhWRE=; b=N9Pr2jYVC3j5RXnC1lhMMCOGdLeidx0t4kajq30mmGwS9UFw32IWw17K5OUeYwy/Z4 ImpgBtW72k5AIKHNDm3VsibxjC/QObuVKP4jLT3j9hs11/kYKHfQQKCUAYIP91yS7mSc cUbs6kRFMGTHe115Nd1uObdfmQzco1YLOfiNKpac64pOTcYtIBoPyMp7s4YVK4pAbMER MLt3DIseH7ilx6DjDpc7HXZ8L8Xl6fXTVNH3IbPrm7DGcftz67uPHF/FT2IuvsTYpSdS Gz7KAkhG8CHp+NBnRAyGOqHtHEM8qsnegoWqEkNm08xPpmLsdEom8WxE5RQ8FwbtqX/F 4osQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id; bh=nF9cQpios6fXc6OzV7zmvzF2+NBva4iLFuGACokhWRE=; b=oNEB9SumheHQ6wwZzeoTlYOMauqpccmUBjdyxZwhkmq51fbFBW5CYDklAO8ZVUm5V5 1UQw2ttX9psGnNhlm5NT7xHcCgi3AVC6pr5AFm02uPtpSPLcUi1m8mqzvpTOo296ZV1x pLOloQQ2hNXL6D8ntryJGS3tkvztUzhV4AzIe6toLxGk60K6C7Gdmc2QWMlHT9aLOamh jYjyb2OcsFI2T561lbe4ok1wBdS1uiMt7mAT9rAcfl8AMLDOzPDRt8le/q1UzT6Mkhe6 539gqmaKPaMk95m7a2KfIvxjABAl0XsevsoGjTny9HgNO2rhmgxPyayM7lMhY03OUhSY nSIg== X-Gm-Message-State: APjAAAWnlSppFX7Vb+PsN27gwOoJf0WkeUmp+a+CaJy5k0SfUtbwJW4t HJJxqoJ213wiKKOdPNSuEV84qQ== X-Google-Smtp-Source: APXvYqwvA7+/eTZv71B8hBFS5QTuc/mvZOV2BnCVsIwXN90jHz1i5jWNRPBpMFNl755BiaI33dSSGw== X-Received: by 2002:ae9:d601:: with SMTP id r1mr22357556qkk.231.1559570731086; Mon, 03 Jun 2019 07:05:31 -0700 (PDT) Received: from qcai.nay.com (nat-pool-bos-t.redhat.com. [66.187.233.206]) by smtp.gmail.com with ESMTPSA id f9sm9310878qkb.97.2019.06.03.07.05.29 (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Mon, 03 Jun 2019 07:05:30 -0700 (PDT) From: Qian Cai To: jroedel@suse.de Cc: baolu.lu@linux.intel.com, dwmw2@infradead.org, iommu@lists.linux-foundation.org, linux-kernel@vger.kernel.org, Qian Cai Subject: [PATCH -next] iommu/intel: silence a variable set but not used Date: Mon, 3 Jun 2019 10:05:19 -0400 Message-Id: <1559570719-16285-1-git-send-email-cai@lca.pw> X-Mailer: git-send-email 1.8.3.1 Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org The commit "iommu/vt-d: Probe DMA-capable ACPI name space devices" introduced a compilation warning due to the "iommu" variable in for_each_active_iommu() but never used the for each element, i.e, "drhd->iommu". drivers/iommu/intel-iommu.c: In function 'probe_acpi_namespace_devices': drivers/iommu/intel-iommu.c:4639:22: warning: variable 'iommu' set but not used [-Wunused-but-set-variable] struct intel_iommu *iommu; Silence the warning the same way as in the commit d3ed71e5cc50 ("drivers/iommu/intel-iommu.c: fix variable 'iommu' set but not used") Signed-off-by: Qian Cai --- drivers/iommu/intel-iommu.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/drivers/iommu/intel-iommu.c b/drivers/iommu/intel-iommu.c index b431cc6f6ba4..2897354a341a 100644 --- a/drivers/iommu/intel-iommu.c +++ b/drivers/iommu/intel-iommu.c @@ -4636,7 +4636,8 @@ static int __init platform_optin_force_iommu(void) static int __init probe_acpi_namespace_devices(void) { struct dmar_drhd_unit *drhd; - struct intel_iommu *iommu; + /* To avoid a -Wunused-but-set-variable warning. */ + struct intel_iommu *iommu __maybe_unused; struct device *dev; int i, ret = 0; -- 1.8.3.1