netdev - Re: [PATCHv2 net 0/2] Add netdev_level_ratelimited to avoid netdev msg flush

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Message-Id: <20190812.112710.2043086880271864277.davem@davemloft.net>
Date:   Mon, 12 Aug 2019 11:27:10 -0700 (PDT)
From:   David Miller <davem@...emloft.net>
To:     tlfalcon@...ux.ibm.com
Cc:     liuhangbin@...il.com, netdev@...r.kernel.org, joe@...ches.com
Subject: Re: [PATCHv2 net 0/2] Add netdev_level_ratelimited to avoid netdev
 msg flush

From: Thomas Falcon <tlfalcon@...ux.ibm.com>
Date: Mon, 12 Aug 2019 10:56:39 -0500

> Hi, thanks for reporting this. I was able to recreate this on my own
> system. The virtual ethernet's multicast filter list size is limited,
> and the driver will check that there is available space before adding
> entries.  The problem is that the size is encoded as big endian, but
> the driver does not convert it for little endian systems after
> retrieving it from the device tree.  As a result the driver is
> requesting more than the hypervisor can allow and getting this error
> in reply. I will submit a patch to correct this soon.

This is 1,000 times better than just trying to make the warning message
go away, thanks Thomas!