From nobody Sat Feb 7 08:13:56 2026 Received: from us-smtp-delivery-124.mimecast.com (us-smtp-delivery-124.mimecast.com [170.10.129.124]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id C052432C930 for ; Tue, 27 Jan 2026 07:39:35 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=170.10.129.124 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1769499577; cv=none; b=IdGsyatXPDlFleMSs5Tmr4UoxiVvuyvPIKGQEp67rDM2eA3TFkeHD/45gg4Jg37VSQVM9f/vTLRIYE5yyrKrHzNu31T5wU28Ql+epO0KjJi+OHyO5XTaQu8Fvx1DWVMxgHpqd1/P4iXLk2OYj9TKSSB16ls3OR1iEKu0T9RhOz4= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1769499577; c=relaxed/simple; bh=eHi/F5rgbKOLh7VbcqHDYhy9AXrHcsfvJc2Mvm/kcHo=; h=From:To:Subject:Date:Message-ID:MIME-Version; b=TYcRrZTFhyYo4elkJTVIHlE1V37kugo0xJNVHaqqyXpxU3jguHk2AU5l1StQrtU5arBhfb/2kqGObsX2xCHZtgWYph+lGF+BKUQBQh02spN1NzIxufa6SUPsjbF/WWF/IR6j33afwrppv42ZGZ4gf9GhLdNEd8ZDJOhFLwHDDtQ= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=redhat.com; spf=pass smtp.mailfrom=redhat.com; dkim=pass (1024-bit key) header.d=redhat.com header.i=@redhat.com header.b=SHtGsDnt; arc=none smtp.client-ip=170.10.129.124 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=redhat.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=redhat.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=redhat.com header.i=@redhat.com header.b="SHtGsDnt" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1769499575; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:mime-version:mime-version: content-transfer-encoding:content-transfer-encoding; bh=bwBEw1zd5t7ZpgQXNt7Oa6aG6SzuHHJ86eogm7XJGHU=; b=SHtGsDntmttBEmFpwMVPbXM9FUkNyvHUP/b82T470BtbZeNKakXaOGD6ap3hmqXsK34Xob lvnk+AAhKoemgv6j4nO1BTTw0HzLnIdKFk2Vc5PKXZxBBcXwivAw8mwdbRRvUV+3qlNZlX 5eJ2U3yPyop2a3x4Oo7cBX+uX4jMl40= Received: from mx-prod-mc-01.mail-002.prod.us-west-2.aws.redhat.com (ec2-54-186-198-63.us-west-2.compute.amazonaws.com [54.186.198.63]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.3, cipher=TLS_AES_256_GCM_SHA384) id us-mta-537-2_lOBWUsNrWB4IwVkR7Cmw-1; Tue, 27 Jan 2026 02:39:30 -0500 X-MC-Unique: 2_lOBWUsNrWB4IwVkR7Cmw-1 X-Mimecast-MFC-AGG-ID: 2_lOBWUsNrWB4IwVkR7Cmw_1769499569 Received: from mx-prod-int-06.mail-002.prod.us-west-2.aws.redhat.com (mx-prod-int-06.mail-002.prod.us-west-2.aws.redhat.com [10.30.177.93]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits) server-digest SHA256) (No client certificate requested) by mx-prod-mc-01.mail-002.prod.us-west-2.aws.redhat.com (Postfix) with ESMTPS id 1DA661944B17; Tue, 27 Jan 2026 07:39:29 +0000 (UTC) Received: from S2.redhat.com (unknown [10.72.112.73]) by mx-prod-int-06.mail-002.prod.us-west-2.aws.redhat.com (Postfix) with ESMTP id A25081800665; Tue, 27 Jan 2026 07:39:25 +0000 (UTC) From: Cindy Lu To: lulu@redhat.com, mst@redhat.com, jasowang@redhat.com, netdev@vger.kernel.org, virtualization@lists.linux-foundation.org, linux-kernel@vger.kernel.org Subject: [PATCH] vhost: remove impossible check in VHOST_GET_FORK_FROM_OWNER ioctl Date: Tue, 27 Jan 2026 15:39:11 +0800 Message-ID: <20260127073921.175981-1-lulu@redhat.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-Scanned-By: MIMEDefang 3.4.1 on 10.30.177.93 Content-Type: text/plain; charset="utf-8" remove impossible fork_owner check in VHOST_GET_FORK_FROM_OWNER ioctl Fixes: 7d9896e9f6d02d8a ("vhost: Reintroduce kthread API and add mode selec= tion") Signed-off-by: Cindy Lu --- drivers/vhost/vhost.c | 5 ----- 1 file changed, 5 deletions(-) diff --git a/drivers/vhost/vhost.c b/drivers/vhost/vhost.c index bccdc9eab267..889481c92236 100644 --- a/drivers/vhost/vhost.c +++ b/drivers/vhost/vhost.c @@ -2338,11 +2338,6 @@ long vhost_dev_ioctl(struct vhost_dev *d, unsigned i= nt ioctl, void __user *argp) if (ioctl =3D=3D VHOST_GET_FORK_FROM_OWNER) { u8 fork_owner_val =3D d->fork_owner; =20 - if (fork_owner_val !=3D VHOST_FORK_OWNER_TASK && - fork_owner_val !=3D VHOST_FORK_OWNER_KTHREAD) { - r =3D -EINVAL; - goto done; - } if (put_user(fork_owner_val, (u8 __user *)argp)) { r =3D -EFAULT; goto done; --=20 2.51.0