netdev - Re: [PATCHv2] net: usbnet: support 64bit stats in qmi

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Date:   Tue, 28 Mar 2017 10:01:40 +0200
From:   Oliver Neukum <oneukum@...e.com>
To:     Eric Dumazet <eric.dumazet@...il.com>,
        Greg Ungerer <gerg@...ux-m68k.org>
Cc:     bjorn@...k.no, linux-usb@...r.kernel.org, netdev@...r.kernel.org
Subject: Re: [PATCHv2] net: usbnet: support 64bit stats in qmi_wwan driver

Am Freitag, den 24.03.2017, 07:17 -0700 schrieb Eric Dumazet:
> On Fri, 2017-03-24 at 15:42 +1000, Greg Ungerer wrote:
> 
> > 
> > The usbnet core is used by a number of drivers. This patch only
> > updates the qmi-wwan driver to use stats64. If you remove the
> > dev->stats.rx_* updates all those other driver users will have
> > no counts.
> 
> I see. Then I guess the u64 stuff could be done only if running 32bit
> kernels. (The existing stats are using 'unsigned long' so are already
> 64bit wide on 64bit kernels)

We want every driver to use u64 if possible. If something
is exported we want a defined size.

	Regards
		Oliver