From patchwork Wed Aug 18 21:32:05 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Ricardo Koller X-Patchwork-Id: 12445421 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=-26.3 required=3.0 tests=BAYES_00,DKIMWL_WL_MED, 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,USER_IN_DEF_DKIM_WL 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 9B156C4338F for ; Wed, 18 Aug 2021 21:32:14 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 7745E61101 for ; Wed, 18 Aug 2021 21:32:14 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S233868AbhHRVcs (ORCPT ); Wed, 18 Aug 2021 17:32:48 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:35998 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229519AbhHRVcq (ORCPT ); Wed, 18 Aug 2021 17:32:46 -0400 Received: from mail-qt1-x849.google.com (mail-qt1-x849.google.com [IPv6:2607:f8b0:4864:20::849]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 442D9C061764 for ; Wed, 18 Aug 2021 14:32:11 -0700 (PDT) Received: by mail-qt1-x849.google.com with SMTP id r13-20020ac85c8d0000b029028efef0404cso1631359qta.14 for ; Wed, 18 Aug 2021 14:32:11 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20161025; h=date:message-id:mime-version:subject:from:to:cc; bh=ecRcCckqyWwTUzyjSNSqRmDARBDpmN5st2LAlkhtd3M=; b=rndIgZ9W3RXr8Fv3KFQJgk7GH7BdVZcJ9F3Vz208W/QTj7Gz33vs9KOTj/kgpPYeYJ go0/ouGDHDiRvhofKXAp7iydUAoi3pUwmkdwgD6MO5tMcgtneJiNJTEk4qMSr680997x FUxuoQKU7+yAaoChYMFkN8eZSyHcNKDJprNjgXMNLGAwiDryRoxuD/Bh7rI8UtmM6jHX 7NtuG2NyjtygIO3hWqzhBnM9uZ80/2Y4nP2rf3xOshbtIjxbvtwREe39emDEXSZt5Ayq zwJS5nzD82mZjftx6rJVYWrH2kICdyw/Szpw0B64opeZB7L+1AvGMlAqqksdknF375aY TxFw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:date:message-id:mime-version:subject:from:to:cc; bh=ecRcCckqyWwTUzyjSNSqRmDARBDpmN5st2LAlkhtd3M=; b=KpU/TeFr8Mk/URsBcpPgDAs9TptrmGwP+nWVTvO0npSTy78JGDWrAk7qHZIFK963t8 KbVGqHPyBSieoZRMck2gtOayVMZK4gZy0LxYdieJVVk6St/dqJSJRQuuC9SeFhqUsopJ mfo8GcJ/H8JNoeSZd0hNDvHf02O0Cxl4OEJrszfgWa+oBZzbPTyox9+hRmWNNlet8k8W mtdBJABVEJPV1MF1WnvG62rSgm1LnWfoaCA3mozd2PGDn0AtJdbj0SWq6AyCKj6Kneb/ YdxEZRnkVh7YJK26ePgn4q5TbwXvTZ5jEmM+hKCMTTVgN1p3eV8BsN99+eXNM17iSWvh O56A== X-Gm-Message-State: AOAM533ymckjg7+Q5Thp8fvEqsx0WcTB19Xj2aD288r+Aw4PxZql+5jX QMftZ4+8ATdk8luiV55sQCc3/bNBX8ObIg== X-Google-Smtp-Source: ABdhPJziTwCi/d/SGVcituWivK5VPhdCVw8HgSkbX/OjYax72lgG7DFYhq9ryf8JeuNmbcDbxIuMRNIUHygZ0Q== X-Received: from ricarkol2.c.googlers.com ([fda3:e722:ac3:cc00:24:72f4:c0a8:62fe]) (user=ricarkol job=sendgmr) by 2002:a05:6214:144e:: with SMTP id b14mr11084163qvy.44.1629322330417; Wed, 18 Aug 2021 14:32:10 -0700 (PDT) Date: Wed, 18 Aug 2021 14:32:05 -0700 Message-Id: <20210818213205.598471-1-ricarkol@google.com> Mime-Version: 1.0 X-Mailer: git-send-email 2.33.0.rc2.250.ged5fa647cd-goog Subject: [PATCH] KVM: arm64: vgic: drop WARN from vgic_get_irq From: Ricardo Koller To: kvmarm@lists.cs.columbia.edu, kvm@vger.kernel.org Cc: maz@kernel.org, james.morse@arm.com, alexandru.elisei@arm.com, drjones@redhat.com, catalin.marinas@arm.com, suzuki.poulose@arm.com, oupton@google.com, jingzhangos@google.com, pshier@google.com, rananta@google.com, reijiw@google.com, Ricardo Koller Precedence: bulk List-ID: X-Mailing-List: kvm@vger.kernel.org vgic_get_irq(intid) is used all over the vgic code in order to get a reference to a struct irq. It warns whenever intid is not a valid number (like when it's a reserved IRQ number). The issue is that this warning can be triggered from userspace (e.g., KVM_IRQ_LINE for intid 1020). Drop the WARN call from vgic_get_irq. Signed-off-by: Ricardo Koller Reviewed-by: Oliver Upton --- arch/arm64/kvm/vgic/vgic.c | 1 - 1 file changed, 1 deletion(-) diff --git a/arch/arm64/kvm/vgic/vgic.c b/arch/arm64/kvm/vgic/vgic.c index 111bff47e471..81cec508d413 100644 --- a/arch/arm64/kvm/vgic/vgic.c +++ b/arch/arm64/kvm/vgic/vgic.c @@ -106,7 +106,6 @@ struct vgic_irq *vgic_get_irq(struct kvm *kvm, struct kvm_vcpu *vcpu, if (intid >= VGIC_MIN_LPI) return vgic_get_lpi(kvm, intid); - WARN(1, "Looking up struct vgic_irq for reserved INTID"); return NULL; }