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

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Message-Id: <20140224.235343.1936318499491821387.davem@davemloft.net>
Date:	Mon, 24 Feb 2014 23:53:43 -0500 (EST)
From:	David Miller <davem@...emloft.net>
To:	ben@...adent.org.uk
Cc:	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

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.

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