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=-9.9 required=3.0 tests=DKIMWL_WL_HIGH,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 77F86ECE58D for ; Fri, 11 Oct 2019 17:20:59 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 45BFE2089F for ; Fri, 11 Oct 2019 17:20:59 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=fb.com header.i=@fb.com header.b="lxZ+X3xr" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728664AbfJKRU7 (ORCPT ); Fri, 11 Oct 2019 13:20:59 -0400 Received: from mx0b-00082601.pphosted.com ([67.231.153.30]:46540 "EHLO mx0a-00082601.pphosted.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1728662AbfJKRU6 (ORCPT ); Fri, 11 Oct 2019 13:20:58 -0400 Received: from pps.filterd (m0089730.ppops.net [127.0.0.1]) by m0089730.ppops.net (8.16.0.42/8.16.0.42) with SMTP id x9BHEhYs024238 for ; Fri, 11 Oct 2019 10:20:57 -0700 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=fb.com; h=from : to : cc : subject : date : message-id : mime-version : content-type; s=facebook; bh=E6qFzriGYNuD5C+LpzkuirW/pYQBoReP5pCDz9HbWa0=; b=lxZ+X3xrajWUXlto95G7lDKxlGF58mjR3yvBujaz7vIoAuM6XdvGhnHMGx8mJKK4oCRl 7v4ypalsidOJTowxKruIrVfhKT5hofXkdyTbtWpIIsZiIOWJNLQtuvQHYaWx+WObWgbF qFSxuWqvilpw5gJAZEIm5p6rFvquTeevCl0= Received: from maileast.thefacebook.com ([163.114.130.16]) by m0089730.ppops.net with ESMTP id 2vjekpuqy2-2 (version=TLSv1.2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128 verify=NOT) for ; Fri, 11 Oct 2019 10:20:57 -0700 Received: from 2401:db00:12:909f:face:0:3:0 (2620:10d:c0a8:1b::d) by mail.thefacebook.com (2620:10d:c0a8:82::c) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.1713.5; Fri, 11 Oct 2019 10:20:56 -0700 Received: by dev101.prn2.facebook.com (Postfix, from userid 137359) id 5866D86190D; Fri, 11 Oct 2019 10:20:55 -0700 (PDT) Smtp-Origin-Hostprefix: dev From: Andrii Nakryiko Smtp-Origin-Hostname: dev101.prn2.facebook.com To: , , , CC: Smtp-Origin-Cluster: prn2c23 Subject: [PATCH v2 bpf-next] bpf: fix cast to pointer from integer of different size warning Date: Fri, 11 Oct 2019 10:20:53 -0700 Message-ID: <20191011172053.2980619-1-andriin@fb.com> X-Mailer: git-send-email 2.17.1 X-FB-Internal: Safe MIME-Version: 1.0 Content-Type: text/plain X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10434:6.0.95,1.0.8 definitions=2019-10-11_10:2019-10-10,2019-10-11 signatures=0 X-Proofpoint-Spam-Details: rule=fb_default_notspam policy=fb_default score=0 suspectscore=8 spamscore=0 adultscore=0 mlxscore=0 mlxlogscore=942 clxscore=1015 bulkscore=0 impostorscore=0 malwarescore=0 phishscore=0 lowpriorityscore=0 priorityscore=1501 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-1908290000 definitions=main-1910110150 X-FB-Internal: deliver Sender: bpf-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: bpf@vger.kernel.org Fix "warning: cast to pointer from integer of different size" when casting u64 addr to void *. Fixes: a23740ec43ba ("bpf: Track contents of read-only maps as scalars") Reported-by: kbuild test robot Acked-by: Martin KaFai Lau Signed-off-by: Andrii Nakryiko --- kernel/bpf/verifier.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/kernel/bpf/verifier.c b/kernel/bpf/verifier.c index b818fed3208d..d3446f018b9a 100644 --- a/kernel/bpf/verifier.c +++ b/kernel/bpf/verifier.c @@ -2753,7 +2753,7 @@ static int bpf_map_direct_read(struct bpf_map *map, int off, int size, u64 *val) err = map->ops->map_direct_value_addr(map, &addr, off); if (err) return err; - ptr = (void *)addr + off; + ptr = (void *)(long)addr + off; switch (size) { case sizeof(u8): -- 2.17.1