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

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Date:	Thu, 07 Apr 2016 04:29:33 -0700
From:	Joe Perches <joe@...ches.com>
To:	Dexuan Cui <decui@...rosoft.com>, gregkh@...uxfoundation.org,
	davem@...emloft.net, netdev@...r.kernel.org,
	linux-kernel@...r.kernel.org, devel@...uxdriverproject.org,
	olaf@...fle.de, apw@...onical.com, jasowang@...hat.com,
	kys@...rosoft.com, haiyangz@...rosoft.com
Cc:	vkuznets@...hat.com
Subject: Re: [PATCH v7 net-next 1/1] hv_sock: introduce Hyper-V Sockets

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__