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Date:   Thu, 1 Dec 2022 10:17:22 +0100
From:   Stefano Garzarella <sgarzare@redhat.com>
To:     Arseniy Krasnov <AVKrasnov@sberdevices.ru>
Cc:     "David S. Miller" <davem@davemloft.net>,
        "edumazet@google.com" <edumazet@google.com>,
        Jakub Kicinski <kuba@kernel.org>,
        Paolo Abeni <pabeni@redhat.com>,
        "kys@microsoft.com" <kys@microsoft.com>,
        "haiyangz@microsoft.com" <haiyangz@microsoft.com>,
        "wei.liu@kernel.org" <wei.liu@kernel.org>,
        Dexuan Cui <decui@microsoft.com>,
        Bryan Tan <bryantan@vmware.com>,
        Vishnu Dasa <vdasa@vmware.com>,
        Krasnov Arseniy <oxffffaa@gmail.com>,
        Bobby Eshleman <bobby.eshleman@gmail.com>,
        Bobby Eshleman <bobby.eshleman@bytedance.com>,
        "linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
        "virtualization@lists.linux-foundation.org" 
        <virtualization@lists.linux-foundation.org>,
        "netdev@vger.kernel.org" <netdev@vger.kernel.org>,
        "linux-hyperv@vger.kernel.org" <linux-hyperv@vger.kernel.org>,
        kernel <kernel@sberdevices.ru>
Subject: Re: [RFC PATCH v2 1/6] vsock: return errors other than -ENOMEM to
 socket
Message-ID: <20221201091722.p7fth4vkbbpq2zx4@sgarzare-redhat>
References: <9d96f6c6-1d4f-8197-b3bc-8957124c8933@sberdevices.ru>
 <84f44358-dd8b-de8f-b782-7b6f03e0a759@sberdevices.ru>
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On Fri, Nov 25, 2022 at 05:03:06PM +0000, Arseniy Krasnov wrote:
>From: Bobby Eshleman <bobby.eshleman@bytedance.com>
>
>This removes behaviour, where error code returned from any
>transport was always switched to ENOMEM.
>
>Signed-off-by: Bobby Eshleman <bobby.eshleman@bytedance.com>
>Signed-off-by: Arseniy Krasnov <AVKrasnov@sberdevices.ru>
>---
> net/vmw_vsock/af_vsock.c | 3 ++-
> 1 file changed, 2 insertions(+), 1 deletion(-)

This patch LGTM, but I would move after the 2 patches that change vmci 
and hyperv transports.

First we should fix the transports by returning the error we think is 
right, and then expose it to the user.

Thanks,
Stefano

>
>diff --git a/net/vmw_vsock/af_vsock.c b/net/vmw_vsock/af_vsock.c
>index 884eca7f6743..61ddab664c33 100644
>--- a/net/vmw_vsock/af_vsock.c
>+++ b/net/vmw_vsock/af_vsock.c
>@@ -1862,8 +1862,9 @@ static int vsock_connectible_sendmsg(struct socket *sock, struct msghdr *msg,
> 			written = transport->stream_enqueue(vsk,
> 					msg, len - total_written);
> 		}
>+
> 		if (written < 0) {
>-			err = -ENOMEM;
>+			err = written;
> 			goto out_err;
> 		}
>
>-- 
>2.25.1