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SubjectRe: [PATCH 11/14] net: dsa: Add support for reading switch registers with ethtool
On 10/22/2014 09:40 PM, Florian Fainelli wrote:
> 2014-10-22 21:03 GMT-07:00 Guenter Roeck <linux@roeck-us.net>:
>> Add support for reading switch registers with 'ethtool -d'.
>>
>> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
>> ---
>
> [snip]
>
>>
>> +static int dsa_slave_get_regs_len(struct net_device *dev)
>> +{
>> + struct dsa_slave_priv *p = netdev_priv(dev);
>> + struct dsa_switch *ds = p->parent;
>> +
>> + if (ds->drv->get_regs_len != NULL)
>> + return ds->drv->get_regs_len(ds, p->port);
>
> Most of the checks in this file are just:
>
> if (ds->drv->callback)
> return ds->drv->callback(...)
>
Hi Florian,

To be fair, that wasn't the case when I wrote the code ;-).
No problem, I'll do the same.

>> +
>> + return -EOPNOTSUPP;
>> +}
>> +
>> +static void
>> +dsa_slave_get_regs(struct net_device *dev, struct ethtool_regs *regs, void *_p)
>> +{
>> + struct dsa_slave_priv *p = netdev_priv(dev);
>> + struct dsa_switch *ds = p->parent;
>> +
>> + ds->drv->get_regs(ds, p->port, regs, _p);
>
> We need to check that the driver does implement this callback here as well.
>

Obviously, and embarrassing ;-).

Thanks a lot for the review!
Guenter



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