Re: [PATCH v7 net-next 1/1] hv_sock: introduce Hyper-V Sockets

From: Joe Perches
Date: Thu Apr 07 2016 - 07:29:42 EST


On Thu, 2016-04-07 at 05:50 -0700, Dexuan Cui wrote:
> Hyper-V Sockets (hv_sock) supplies a byte-stream based communication
> mechanism between the host and the guest. It's somewhat like TCP over
> VMBus, but the transportation layer (VMBus) is much simpler than IP.

style trivia:

> diff --git a/net/hv_sock/af_hvsock.c b/net/hv_sock/af_hvsock.c
[]
> +static struct sock *__hvsock_find_bound_socket(const struct sockaddr_hv *addr)
> +{
> + struct hvsock_sock *hvsk;
> +
> + list_for_each_entry(hvsk, &hvsock_bound_list, bound_list)
> + if (uuid_equals(addr->shv_service_id,
> + hvsk->local_addr.shv_service_id))
> + return hvsock_to_sk(hvsk);

Because there's an if, it's generally nicer to use
braces in the list_for_each
> +static struct sock *__hvsock_find_connected_socket_by_channel(
> + const struct vmbus_channel *channel)
> +{
> + struct hvsock_sock *hvsk;
> +
> + list_for_each_entry(hvsk, &hvsock_connected_list, connected_list)
> + if (hvsk->channel == channel)
> + return hvsock_to_sk(hvsk);
> + return NULL;

here too

> +static int hvsock_sendmsg(struct socket *sock, struct msghdr *msg, size_t len)
> +{
[]
> + if (msg->msg_flags & ~MSG_DONTWAIT) {
> + pr_err("hvsock_sendmsg: unsupported flags=0x%x\n",
> +        msg->msg_flags);

All the pr_<level> messages with embedded function
names could use "%s:", __func__