From: David Miller <davem@davemloft.net>
To: blaschka@linux.vnet.ibm.com
Cc: netdev@vger.kernel.org, linux-s390@vger.kernel.org
Subject: Re: [PATCH net] qeth: don't query for info if hardware not ready.
Date: Tue, 02 Sep 2014 13:54:53 -0700 (PDT) [thread overview]
Message-ID: <20140902.135453.1641959942842500454.davem@davemloft.net> (raw)
In-Reply-To: <20140902062017.GA23360@tuxmaker.boeblingen.de.ibm.com>
From: Frank Blaschka <blaschka@linux.vnet.ibm.com>
Date: Tue, 2 Sep 2014 08:20:17 +0200
> From: Eugene Crosser <Eugene.Crosser@ru.ibm.com>
>
> When qeth device is queried for ethtool data, hardware operation
> is performed to extract the necessary information from the card.
> If the card is not online at the moment (e.g. it is undergoing
> recovery), this operation produces undesired effects like
> temporarily freezing the system. This patch prevents execution
> of the hardware query operation when the card is not online.
> In such case, ioctl() operation returns error with errno ENODEV.
>
> Reviewed-by: Ursula Braun <ursula.braun@de.ibm.com>
> Signed-off-by: Eugene Crosser <Eugene.Crosser@ru.ibm.com>
> Signed-off-by: Frank Blaschka <blaschka@linux.vnet.ibm.com>
Applied.
prev parent reply other threads:[~2014-09-02 20:54 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-09-02 6:20 [PATCH net] qeth: don't query for info if hardware not ready Frank Blaschka
2014-09-02 20:54 ` David Miller [this message]
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