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Date:   Mon, 3 Apr 2023 13:14:49 +0200
From:   Stefano Garzarella <sgarzare@redhat.com>
To:     Arseniy Krasnov <avkrasnov@sberdevices.ru>
Cc:     Stefan Hajnoczi <stefanha@redhat.com>,
        "David S. Miller" <davem@davemloft.net>,
        Eric Dumazet <edumazet@google.com>,
        Jakub Kicinski <kuba@kernel.org>,
        Paolo Abeni <pabeni@redhat.com>,
        Bobby Eshleman <bobby.eshleman@bytedance.com>,
        Bryan Tan <bryantan@vmware.com>,
        Vishnu Dasa <vdasa@vmware.com>, kvm@vger.kernel.org,
        virtualization@lists.linux-foundation.org, netdev@vger.kernel.org,
        linux-kernel@vger.kernel.org, kernel@sberdevices.ru,
        oxffffaa@gmail.com, pv-drivers@vmware.com
Subject: Re: [RFC PATCH v4 1/3] vsock/vmci: convert VMCI error code to
 -ENOMEM on receive
Message-ID: <djxa4zzfqu463t6rw3plwegghwmem36rue3czs7ype2xn3f6b7@65ly3ebfkt6w>
References: <5440aa51-8a6c-ac9f-9578-5bf9d66217a5@sberdevices.ru>
 <fb3308c0-4a7a-a0b0-dbfd-92e50985600e@sberdevices.ru>
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On Sun, Apr 02, 2023 at 09:15:49PM +0300, Arseniy Krasnov wrote:
>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 <AVKrasnov@sberdevices.ru>
>Reviewed-by: Vishnu Dasa <vdasa@vmware.com>
>---
> net/vmw_vsock/vmci_transport.c | 11 +++++++++--
> 1 file changed, 9 insertions(+), 2 deletions(-)

LGTM!

Reviewed-by: Stefano Garzarella <sgarzare@redhat.com>

>
>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(
>-- 
>2.25.1
>