linux-kernel - Re: [PATCH] net: kdoc struct net_device flags and priv

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Message-ID: <2446186.I4KkJ8Hjdb@lenovo>
Date:	Mon, 24 Feb 2014 21:37:34 -0800
From:	Florian Fainelli <f.fainelli@...il.com>
To:	David Miller <davem@...emloft.net>
Cc:	ben@...adent.org.uk, mcgrof@...not-panic.com,
	netdev@...r.kernel.org, linux-kernel@...r.kernel.org,
	mcgrof@...e.com
Subject: Re: [PATCH] net: kdoc struct net_device flags and priv_flags

Le lundi 24 février 2014, 23:53:43 David Miller a écrit :
> From: Ben Hutchings <ben@...adent.org.uk>
> Date: Tue, 25 Feb 2014 02:11:05 +0000
> 
> > On Mon, 2014-02-24 at 16:14 -0800, Luis R. Rodriguez wrote:
> >> From: "Luis R. Rodriguez" <mcgrof@...e.com>
> >> 
> >> ---
> >> 
> >>  include/uapi/linux/if.h | 201
> >>  +++++++++++++++++++++++++++++++++++------------- 1 file changed, 149
> >>  insertions(+), 52 deletions(-)
> >> 
> >> diff --git a/include/uapi/linux/if.h b/include/uapi/linux/if.h
> >> index d758163..1555623 100644
> >> --- a/include/uapi/linux/if.h
> >> +++ b/include/uapi/linux/if.h
> > 
> > [...]
> > 
> >> +/**
> >> + * enum net_device_priv_flags - &struct net_device priv_flags
> >> + *
> >> + * These are the &struct net_device, they are only set internally
> >> + * by drivers and used in the kernel but are invisible to userspace.
> > 
> > [...]
> > 
> > Indeed, I wonder why they are in the UAPI header.  As userland doesn't
> > have a legitimate use for them, maybe you could move them back to
> > include/linux/if.h instead of bothering with adding macros?
> 
> They are visible to userspace via sysfs.

In /sys/class/net/*/flags, although we are lacking quite a lot of documentation 
for the exported attributes there.

The only attributes for which there is some sort of documentation are 
"operstate" and the XPS/RFS/RPS attributes, maybe that could be fixed too as 
part of this documentation patch?

> 
> My memory may be bad, but I believe this has been brought up before.
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-- 
Florian
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