From patchwork Thu Mar 30 20:13:46 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Arseniy Krasnov X-Patchwork-Id: 13194822 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 34AC5C77B60 for ; Thu, 30 Mar 2023 20:17:17 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229729AbjC3URP (ORCPT ); Thu, 30 Mar 2023 16:17:15 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:53586 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229667AbjC3URO (ORCPT ); Thu, 30 Mar 2023 16:17:14 -0400 Received: from mx.sberdevices.ru (mx.sberdevices.ru [45.89.227.171]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 7B2EBBDDE; Thu, 30 Mar 2023 13:17:13 -0700 (PDT) Received: from s-lin-edge02.sberdevices.ru (localhost [127.0.0.1]) by mx.sberdevices.ru (Postfix) with ESMTP id D0D635FD0B; Thu, 30 Mar 2023 23:17:11 +0300 (MSK) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=sberdevices.ru; s=mail; t=1680207431; bh=CER4MNFQ6t3C6FIfst1okLvyzbLyUopRquokWOtBnsQ=; h=Message-ID:Date:MIME-Version:To:From:Subject:Content-Type; b=MY/7gFs0FihHvg4So5SMlp4NMyXRUE6sJZcDV58zb6qwCkGHGzc4YGHXU71vuWZFX DKih2599fybEo6cshMRBSyEdug2F+Msodtx3gYo9XR37O0Y+LvdyTQYDP9xQt/Q3dn TgqnzU7Uru7H6SVVRql5Cd3UFKm4RI0IHt/xPzE3OuvLEDRsC6kYwS03befvS+iX3r GgL9L2n9QYRlFL3GVqYXmTtfl6ZjyuNe5dkQomhAoA1/bsNp9RPbFKYbioWD75y7eD gjGNg7jnWcDlP1FIeCBn90nrHo+JN/KYbQUCey6wzm26WkSJ0oXGItCVXSXqfSF68y ydb+VTAMdnF2g== Received: from S-MS-EXCH01.sberdevices.ru (S-MS-EXCH01.sberdevices.ru [172.16.1.4]) by mx.sberdevices.ru (Postfix) with ESMTP; Thu, 30 Mar 2023 23:17:11 +0300 (MSK) Message-ID: <4d34fac8-7170-5a3e-5043-42a9f7e4b5b3@sberdevices.ru> Date: Thu, 30 Mar 2023 23:13:46 +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: 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 v3 2/4] vsock/vmci: convert VMCI error code to -ENOMEM on receive X-Originating-IP: [172.16.1.6] X-ClientProxiedBy: S-MS-EXCH01.sberdevices.ru (172.16.1.4) 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: 2023/03/30 18:07:00 #21069213 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 needed, because af_vsock.c passes error value returned from transport to the user, which does not expect to get VMCI_ERROR_* values. Signed-off-by: Arseniy Krasnov Reviewed-by: Vishnu Dasa --- 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 95cc4d79ba29..b370070194fa 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(