From: David Miller <davem@davemloft.net>
To: shemminger@vyatta.com
Cc: gthelen@google.com, shemminger@linux-foundation.org,
netdev@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCH] sky2: avoid using uninitialized variable
Date: Thu, 16 Jun 2011 23:10:18 -0400 (EDT) [thread overview]
Message-ID: <20110616.231018.84570655636629416.davem@davemloft.net> (raw)
In-Reply-To: <20110614000230.4166a1ae@s6510.ftrdhcpuser.net>
From: Stephen Hemminger <shemminger@vyatta.com>
Date: Tue, 14 Jun 2011 00:02:30 -0400
> In my experience if phy reads once successfully, it is going
> to read every time. If there is a problem it only happens on
> the first access (powered off, bad timing, etc).
It also happens when the PHY can't get a response for a certain
register, for whatever reason, before internal hw timeouts trigger.
Please, check all MII accesses. That's what I do in every driver
I've written.
next prev parent reply other threads:[~2011-06-17 3:10 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-06-13 21:21 Greg Thelen
2011-06-13 22:12 ` Stephen Hemminger
2011-06-14 0:34 ` Greg Thelen
2011-06-14 4:02 ` Stephen Hemminger
2011-06-17 3:10 ` David Miller [this message]
2011-06-17 3:51 ` Ben Hutchings
2011-06-17 3:58 ` David Miller
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