From nobody Tue May 7 17:39:21 2024 Delivered-To: importer@patchew.org Received-SPF: pass (zohomail.com: domain of lists.xenproject.org designates 192.237.175.120 as permitted sender) client-ip=192.237.175.120; envelope-from=xen-devel-bounces@lists.xenproject.org; helo=lists.xenproject.org; Authentication-Results: mx.zohomail.com; spf=pass (zohomail.com: domain of lists.xenproject.org designates 192.237.175.120 as permitted sender) smtp.mailfrom=xen-devel-bounces@lists.xenproject.org ARC-Seal: i=1; a=rsa-sha256; t=1609699660; cv=none; d=zohomail.com; s=zohoarc; b=h+utqA5qRrkjN2NJ61rN8yKgqIO9AcYrGjGqMbp+3Eq5K4KQPyDgWBXbWLZkWpfTXwqsKGlr4E/n9ZZVnQj4sCHVmB8nmDJRTJx1DI9L0KrP+ORgThep5BqyrIfymcOVleTLbuiI4Hqdkq0mkthKeqDdYlGeadpwgteYViqOP3o= ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=zohomail.com; s=zohoarc; t=1609699660; h=Content-Transfer-Encoding:Cc:Date:From:List-Subscribe:List-Post:List-Id:List-Help:List-Unsubscribe:MIME-Version:Message-ID:Sender:Subject:To; bh=sICH2wjOLjjbWpzj43yHxjV46uIfLuNwN9tNdeW2BR8=; b=MIK8JDkoi5XayegvEgR+UuhE8F/MEDCLzUNNH52+bY8DacMgXW7YH5B+zirzPVPAj564j1zlRbNz8+yNnxDhxAKa2zzTlM5fBxWkO2a94VBosK8CoaAv7IDuNJLGuwBEnL4me6oZgQQqp8fbEcfojToxry0Bg7bub3n+7t9pt8Q= ARC-Authentication-Results: i=1; mx.zohomail.com; spf=pass (zohomail.com: domain of lists.xenproject.org designates 192.237.175.120 as permitted sender) smtp.mailfrom=xen-devel-bounces@lists.xenproject.org Return-Path: Received: from lists.xenproject.org (lists.xenproject.org [192.237.175.120]) by mx.zohomail.com with SMTPS id 1609699660510480.2218783980363; Sun, 3 Jan 2021 10:47:40 -0800 (PST) Received: from list by lists.xenproject.org with outflank-mailman.60974.106964 (Exim 4.92) (envelope-from ) id 1kw8PO-0004qY-G9; Sun, 03 Jan 2021 18:47:18 +0000 Received: by outflank-mailman (output) from mailman id 60974.106964; Sun, 03 Jan 2021 18:47:18 +0000 Received: from localhost ([127.0.0.1] helo=lists.xenproject.org) by lists.xenproject.org with esmtp (Exim 4.92) (envelope-from ) id 1kw8PO-0004qR-Bd; Sun, 03 Jan 2021 18:47:18 +0000 Received: by outflank-mailman (input) for mailman id 60974; Sun, 03 Jan 2021 18:47:17 +0000 Received: from us1-rack-iad1.inumbo.com ([172.99.69.81]) by lists.xenproject.org with esmtp (Exim 4.92) (envelope-from ) id 1kw8PN-0004qM-M5 for xen-devel@lists.xenproject.org; Sun, 03 Jan 2021 18:47:17 +0000 Received: from MTA-11-4.privateemail.com (unknown [198.54.127.104]) by us1-rack-iad1.inumbo.com (Halon) with ESMTPS id 6b370471-66b1-4541-905d-c90c1930abb5; Sun, 03 Jan 2021 18:47:16 +0000 (UTC) Received: from mta-11.privateemail.com (localhost [127.0.0.1]) by mta-11.privateemail.com (Postfix) with ESMTP id 0BE8B80098; Sun, 3 Jan 2021 13:47:16 -0500 (EST) Received: from t9.localdomain (unknown [10.20.151.229]) by mta-11.privateemail.com (Postfix) with ESMTPA id E1F4B80080; Sun, 3 Jan 2021 18:47:14 +0000 (UTC) X-Outflank-Mailman: Message body and most headers restored to incoming version 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" X-Inumbo-ID: 6b370471-66b1-4541-905d-c90c1930abb5 From: Tamas K Lengyel To: xen-devel@lists.xenproject.org Cc: Tamas K Lengyel , Jan Beulich , Andrew Cooper , George Dunlap , =?UTF-8?q?Roger=20Pau=20Monn=C3=A9?= , Wei Liu Subject: [PATCH] x86/mem_sharing: silence ubsan warning Date: Sun, 3 Jan 2021 11:47:11 -0700 Message-Id: <7536d7bd92337933e6e23be359ca981deab50016.1609699565.git.tamas@tklengyel.com> X-Mailer: git-send-email 2.25.1 MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-Virus-Scanned: ClamAV using ClamSMTP Content-Type: text/plain; charset="utf-8" Running Xen compiled with UBSAN produces a warning for mismatched size. It's benign but this patch silences the warning. Signed-off-by: Tamas K Lengyel --- xen/arch/x86/mm/mem_sharing.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) diff --git a/xen/arch/x86/mm/mem_sharing.c b/xen/arch/x86/mm/mem_sharing.c index c428fd16ce..6920077dbf 100644 --- a/xen/arch/x86/mm/mem_sharing.c +++ b/xen/arch/x86/mm/mem_sharing.c @@ -1638,7 +1638,10 @@ static int fork_hap_allocation(struct domain *cd, st= ruct domain *d) rc =3D hap_set_allocation(cd, mb << (20 - PAGE_SHIFT), &preempted); paging_unlock(cd); =20 - return preempted ? -ERESTART : rc; + if ( preempted ) + rc =3D -ERESTART; + + return rc; } =20 static void copy_tsc(struct domain *cd, struct domain *d) --=20 2.25.1