linux-kernel - Re: [PATCH] usb: gadget: rndis: add multi packages support for rndis

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Date: Tue, 26 Mar 2024 10:47:16 +0000
From: 庞苏荣 (Surong Pang) <surong.pang@...soc.com>
To: Greg KH <gregkh@...uxfoundation.org>
CC: "linux-usb@...r.kernel.org" <linux-usb@...r.kernel.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        翟京 (Orson Zhai) <Orson.Zhai@...soc.com>,
        刘智勇 (Zhiyong Liu) <Zhiyong.Liu@...soc.com>,
        "Surong.Pang@...il.com" <Surong.Pang@...il.com>
Subject: Re: [PATCH] usb: gadget: rndis: add multi packages support for rndis

Dear Greg，
Share Android Phone internet to Windows PC via USB still need the rndis feature.
OK, if rndis will be deleted entirely, this patch can be abandoned.

> 
> 
> On Wed, Mar 06, 2024 at 01:49:49PM +0800, Surong Pang wrote:
> > As ncm, aggergate multi skb packages and transfer them at one URB.
> > In USB2.0, the network throughput can be improved from about 18MB/S to
> > 35MB/S.
> 
> Why is rndis still being used?  It's an insecure and obsolete protocol that should not be used at all anywhere.  I keep trying to delete it
> entirely, but need to go and write an active exploit to prove to people just how bad it really is before I can do so...
> 
> Adding more functionality to it is not a good idea, what is wrong with the other, built-in, networking protocols instead?  Why are you
> using this old one still when there are so many better options out there?
> 
> thanks,
> 
> greg k-h