From nobody Tue Nov 26 22:23:53 2024 Delivered-To: importer@patchew.org Authentication-Results: mx.zohomail.com; spf=pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org; dmarc=fail(p=none dis=none) header.from=redhat.com Return-Path: Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) by mx.zohomail.com with SMTPS id 1704198805314855.2148192319058; Tue, 2 Jan 2024 04:33:25 -0800 (PST) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1rKdwg-0003Kr-Kb; Tue, 02 Jan 2024 07:32:34 -0500 Received: from eggs.gnu.org ([2001:470:142:3::10]) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1rKdwe-0003KG-Rb for qemu-devel@nongnu.org; Tue, 02 Jan 2024 07:32:32 -0500 Received: from mail.ozlabs.org ([2404:9400:2221:ea00::3] helo=gandalf.ozlabs.org) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1rKdwb-0006Pf-K5 for qemu-devel@nongnu.org; Tue, 02 Jan 2024 07:32:32 -0500 Received: from gandalf.ozlabs.org (gandalf.ozlabs.org [150.107.74.76]) by gandalf.ozlabs.org (Postfix) with ESMTP id 4T4C0h3vY8z4x5h; Tue, 2 Jan 2024 23:32:20 +1100 (AEDT) Received: from authenticated.ozlabs.org (localhost [127.0.0.1]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256) (No client certificate requested) by mail.ozlabs.org (Postfix) with ESMTPSA id 4T4C0f5TrWz4x2P; Tue, 2 Jan 2024 23:32:18 +1100 (AEDT) From: =?UTF-8?q?C=C3=A9dric=20Le=20Goater?= To: qemu-devel@nongnu.org Cc: Yi Liu , Eric Auger , Zhenzhong Duan , =?UTF-8?q?C=C3=A9dric=20Le=20Goater?= Subject: [PATCH 1/2] backends/iommufd: Remove check on number of backend users Date: Tue, 2 Jan 2024 13:32:09 +0100 Message-ID: <20240102123210.1184293-2-clg@redhat.com> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20240102123210.1184293-1-clg@redhat.com> References: <20240102123210.1184293-1-clg@redhat.com> MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=2404:9400:2221:ea00::3; envelope-from=SRS0=sWZB=IM=redhat.com=clg@ozlabs.org; helo=gandalf.ozlabs.org X-Spam_score_int: -39 X-Spam_score: -4.0 X-Spam_bar: ---- X-Spam_report: (-4.0 / 5.0 requ) BAYES_00=-1.9, HEADER_FROM_DIFFERENT_DOMAINS=0.249, RCVD_IN_DNSWL_MED=-2.3, SPF_HELO_PASS=-0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZM-MESSAGEID: 1704198805567100001 QOM already has a ref count on objects and it will assert much earlier, when INT_MAX is reached. Signed-off-by: C=C3=A9dric Le Goater Reviewed-by: Zhenzhong Duan --- backends/iommufd.c | 5 ----- 1 file changed, 5 deletions(-) diff --git a/backends/iommufd.c b/backends/iommufd.c index ba58a0eb0d0ba9aae625c987eb728547543dba66..393c0d9a3719e3de1a6b51a8ff2= e75e184badc82 100644 --- a/backends/iommufd.c +++ b/backends/iommufd.c @@ -80,11 +80,6 @@ int iommufd_backend_connect(IOMMUFDBackend *be, Error **= errp) int fd, ret =3D 0; =20 qemu_mutex_lock(&be->lock); - if (be->users =3D=3D UINT32_MAX) { - error_setg(errp, "too many connections"); - ret =3D -E2BIG; - goto out; - } if (be->owned && !be->users) { fd =3D qemu_open_old("/dev/iommu", O_RDWR); if (fd < 0) { --=20 2.43.0