From patchwork Sun Apr 2 18:15:49 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Arseniy Krasnov X-Patchwork-Id: 13197526 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 68C76C76196 for ; Sun, 2 Apr 2023 18:19:45 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231391AbjDBSTY (ORCPT ); Sun, 2 Apr 2023 14:19:24 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:40864 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230229AbjDBSTW (ORCPT ); Sun, 2 Apr 2023 14:19:22 -0400 Received: from mx.sberdevices.ru (mx.sberdevices.ru [45.89.227.171]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 76802902A; Sun, 2 Apr 2023 11:19:21 -0700 (PDT) Received: from s-lin-edge02.sberdevices.ru (localhost [127.0.0.1]) by mx.sberdevices.ru (Postfix) with ESMTP id CB3435FD04; Sun, 2 Apr 2023 21:19:19 +0300 (MSK) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=sberdevices.ru; s=mail; t=1680459559; bh=ylxN7UqQ/M1z7OMhkHvFEk22Nzg7mYVbxzsd6Ok5gYk=; h=Message-ID:Date:MIME-Version:To:From:Subject:Content-Type; b=qkgRmy0fCvdg4Rmxz7Bya+i2lWqY2nRMIZOJPRV3xQuTOh0NYYWde9pZi2eIlBk7w IxIOsboZr96vpG1/ydZFk8mpQ4+uBj//drk/l8sUlgo1jrFvyRG54OOK5XbF1MMsEQ ndE2yMEwJ93hcNGEGcjLRKUE4v0Tepr6TPMXD0u09Gm5z1MO3uF+x12Q87oF7n+fG5 XCJXBfGj1VQK96jDY0t/8TPTWJtcWJfBZ2YN+oe+jad9mMUN61XreMA5RkDPH3bt/x 47A4mR5cUDLwA/VfGfdybad48AZTfRSJNopp1P3zjnSZkaljt3WBKTiPbKYWRC6rzi itKp/WArm5hug== Received: from S-MS-EXCH01.sberdevices.ru (S-MS-EXCH01.sberdevices.ru [172.16.1.4]) by mx.sberdevices.ru (Postfix) with ESMTP; Sun, 2 Apr 2023 21:19:19 +0300 (MSK) Message-ID: Date: Sun, 2 Apr 2023 21:15:49 +0300 MIME-Version: 1.0 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:102.0) Gecko/20100101 Thunderbird/102.7.1 Content-Language: en-US In-Reply-To: <5440aa51-8a6c-ac9f-9578-5bf9d66217a5@sberdevices.ru> To: Stefan Hajnoczi , Stefano Garzarella , "David S. Miller" , Eric Dumazet , Jakub Kicinski , Paolo Abeni , Bobby Eshleman , Bryan Tan , Vishnu Dasa CC: , , , , , , , From: Arseniy Krasnov Subject: [RFC PATCH v4 1/3] vsock/vmci: convert VMCI error code to -ENOMEM on receive X-Originating-IP: [172.16.1.6] X-ClientProxiedBy: S-MS-EXCH02.sberdevices.ru (172.16.1.5) To S-MS-EXCH01.sberdevices.ru (172.16.1.4) X-KSMG-Rule-ID: 4 X-KSMG-Message-Action: clean X-KSMG-AntiSpam-Status: not scanned, disabled by settings X-KSMG-AntiSpam-Interceptor-Info: not scanned X-KSMG-AntiPhishing: not scanned, disabled by settings X-KSMG-AntiVirus: Kaspersky Secure Mail Gateway, version 1.1.2.30, bases: 2023/04/02 13:52:00 #21029650 X-KSMG-AntiVirus-Status: Clean, skipped Precedence: bulk List-ID: X-Mailing-List: kvm@vger.kernel.org This adds conversion of VMCI specific error code to general -ENOMEM. It is preparation for the next patch, which changes af_vsock.c behaviour on receive to pass value returned from transport to the user. Signed-off-by: Arseniy Krasnov Reviewed-by: Vishnu Dasa Reviewed-by: Stefano Garzarella --- net/vmw_vsock/vmci_transport.c | 11 +++++++++-- 1 file changed, 9 insertions(+), 2 deletions(-) diff --git a/net/vmw_vsock/vmci_transport.c b/net/vmw_vsock/vmci_transport.c index 36eb16a40745..a5375c97f5b0 100644 --- a/net/vmw_vsock/vmci_transport.c +++ b/net/vmw_vsock/vmci_transport.c @@ -1831,10 +1831,17 @@ static ssize_t vmci_transport_stream_dequeue( size_t len, int flags) { + ssize_t err; + if (flags & MSG_PEEK) - return vmci_qpair_peekv(vmci_trans(vsk)->qpair, msg, len, 0); + err = vmci_qpair_peekv(vmci_trans(vsk)->qpair, msg, len, 0); else - return vmci_qpair_dequev(vmci_trans(vsk)->qpair, msg, len, 0); + err = vmci_qpair_dequev(vmci_trans(vsk)->qpair, msg, len, 0); + + if (err < 0) + err = -ENOMEM; + + return err; } static ssize_t vmci_transport_stream_enqueue(