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=-8.8 required=3.0 tests=DKIM_INVALID,DKIM_SIGNED, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY, 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 46A0EC04AAC for ; Mon, 20 May 2019 13:39:04 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 1B87D20856 for ; Mon, 20 May 2019 13:39:04 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="signature verification failed" (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="PX548Kp9" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2389284AbfETNjD (ORCPT ); Mon, 20 May 2019 09:39:03 -0400 Received: from mail-wr1-f68.google.com ([209.85.221.68]:44451 "EHLO mail-wr1-f68.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727682AbfETNjC (ORCPT ); Mon, 20 May 2019 09:39:02 -0400 Received: by mail-wr1-f68.google.com with SMTP id w13so3908475wru.11; Mon, 20 May 2019 06:39:01 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=sender:from:to:cc:subject:date:message-id; bh=bLeZplg8ot5OhBeGr3FMD+700rd1zlYGYOO98ayuuNo=; b=PX548Kp9GsiNqYIeFor5Wcu6Pgv+PD4Gs81KYmfCoXffToGmp4sAQQWTIaSNFDj7Nl wvLZhu1VvaODdyWfglGsJ4uuy6TOQ9SsaVhqX6Cctt3ZwZFgZa4Amujq1+M5FFAPQMCN H8zTBKCyRmTS3K5LsdsZnVUH5QBTBVlY6U37XIFs9z50xPVGyHJgZNr8/y8+NZqFhn+T 1dV3jM5NICApffmF/er+5fynKFLEfyAORcqM39/ihsJl8nwWFfoY3mKDlZQwxQOQosO1 /uuG9JRpoPguNh9Pt9wL3hDIhCM4bWG6X0q7ukx5h+jJR2VxY+JU0i7fgjDftpwQfIh0 Tngw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:sender:from:to:cc:subject:date:message-id; bh=bLeZplg8ot5OhBeGr3FMD+700rd1zlYGYOO98ayuuNo=; b=tbfLHMr6nVjVtajxkE/jWBbHhkv4Rs7+i5cpJxeTMLbdmLctqn/pnqK8NfjDVJmsGd 1Yeu2mHvO7hC6HMYq6lV46+Uza3dB7v9znU//Imowzcp5wfGf9UOhjE0qYIh8E5/Ffpy hpdmrCjHso/I6H7b69Z0VQ4QrkqdJBtxiINzmqaS5smM+82r9lY62lMiAExlYfaFiShT slQb3oZMq505AkzhU+nIu3/Ahicm2VN5KWQ88/a4fcpziLzmdN4XRgXPi2saUV4QL3f0 EeKT6ruFMOvLee8LO73u/8HhQqs4POVBJ6dDOk1qH5vUYCVpW7KA7qUKDYqJ2bqTSFej bKCQ== X-Gm-Message-State: APjAAAW8YhQ9Tm4oMouWbCuB6w4DH3ZbthRnyV4KBPbdTq3AV6AafcF0 UGfAo6XCox0aD3eu3WtNxzY4d77d X-Google-Smtp-Source: APXvYqyPQru8WZN1t8IdBQ5n6pFQOvI+1sT5Bmz9bJYnhIJ7RuVzyHMYa7ozc42hEbDObV1oy4F2UQ== X-Received: by 2002:a5d:688f:: with SMTP id h15mr7843019wru.44.1558359540711; Mon, 20 May 2019 06:39:00 -0700 (PDT) Received: from 640k.lan ([93.56.166.5]) by smtp.gmail.com with ESMTPSA id z20sm20659472wmf.14.2019.05.20.06.38.59 (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Mon, 20 May 2019 06:39:00 -0700 (PDT) From: Paolo Bonzini To: linux-kernel@vger.kernel.org, kvm@vger.kernel.org Cc: thuth@redhat.com Subject: [PATCH] kvm: selftests: avoid type punning Date: Mon, 20 May 2019 15:38:58 +0200 Message-Id: <1558359538-14910-1-git-send-email-pbonzini@redhat.com> 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 Avoid warnings from -Wstrict-aliasing by using memcpy. Signed-off-by: Paolo Bonzini --- tools/testing/selftests/kvm/lib/ucall.c | 2 +- tools/testing/selftests/kvm/x86_64/vmx_set_nested_state_test.c | 2 +- 2 files changed, 2 insertions(+), 2 deletions(-) diff --git a/tools/testing/selftests/kvm/lib/ucall.c b/tools/testing/selftests/kvm/lib/ucall.c index a2ab38be2f47..b701a01cfcb6 100644 --- a/tools/testing/selftests/kvm/lib/ucall.c +++ b/tools/testing/selftests/kvm/lib/ucall.c @@ -142,7 +142,7 @@ uint64_t get_ucall(struct kvm_vm *vm, uint32_t vcpu_id, struct ucall *uc) vm_vaddr_t gva; TEST_ASSERT(run->mmio.is_write && run->mmio.len == 8, "Unexpected ucall exit mmio address access"); - gva = *(vm_vaddr_t *)run->mmio.data; + memcpy(&gva, run->mmio.data, sizeof(gva)); memcpy(uc, addr_gva2hva(vm, gva), sizeof(*uc)); } diff --git a/tools/testing/selftests/kvm/x86_64/vmx_set_nested_state_test.c b/tools/testing/selftests/kvm/x86_64/vmx_set_nested_state_test.c index 61a2163cf9f1..9d62e2c7e024 100644 --- a/tools/testing/selftests/kvm/x86_64/vmx_set_nested_state_test.c +++ b/tools/testing/selftests/kvm/x86_64/vmx_set_nested_state_test.c @@ -75,7 +75,7 @@ void set_revision_id_for_vmcs12(struct kvm_nested_state *state, u32 vmcs12_revision) { /* Set revision_id in vmcs12 to vmcs12_revision. */ - *(u32 *)(state->data) = vmcs12_revision; + memcpy(state->data, &vmcs12_revision, sizeof(u32)); } void set_default_state(struct kvm_nested_state *state) -- 1.8.3.1