netdev - for newbies, it would be useful to document values of netdev_state

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Message-ID: <alpine.LFD.2.21.1808041128280.23447@localhost.localdomain>
Date:   Sat, 4 Aug 2018 11:30:37 -0400 (EDT)
From:   "Robert P. J. Day" <rpjday@...shcourse.ca>
To:     Linux kernel ntedev mailing list <netdev@...r.kernel.org>
Subject: for newbies, it would be useful to document values of
 netdev_state_t

  i'm sure this is second nature for the experts here, but in
netdevice.h:

/* These flag bits are private to the generic network queueing
 * layer; they may not be explicitly referenced by any other
 * code.
 */

enum netdev_state_t {
        __LINK_STATE_START,
        __LINK_STATE_PRESENT,
        __LINK_STATE_NOCARRIER,
        __LINK_STATE_LINKWATCH_PENDING,
        __LINK_STATE_DORMANT,
};

it would be handy to have a short explanation of what each state
represents, perhaps what combinations are possible and how one moves
from one state to another.

rday

-- 

========================================================================
Robert P. J. Day                                 Ottawa, Ontario, CANADA
                  http://crashcourse.ca/dokuwiki

Twitter:                                       http://twitter.com/rpjday
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