netdev - Re: [PATCH v2 4/8] net: sh-eth: Remove SH_ETH_HAS_TSU and use tsu of sh_eth_cpu

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Date:	Tue, 07 May 2013 11:57:39 +0900
From:	Nobuhiro Iwamatsu <nobuhiro.iwamatsu.yj@...esas.com>
To:	Sergei Shtylyov <sergei.shtylyov@...entembedded.com>
Cc:	netdev@...r.kernel.org, yoshihiro.shimoda.uh@...esas.com
Subject: Re: [PATCH v2 4/8] net: sh-eth: Remove SH_ETH_HAS_TSU and use tsu of
 sh_eth_cpu_data instead

Hi,

(2013/04/18 23:40), Sergei Shtylyov wrote:
> On 18-04-2013 14:11, Nobuhiro Iwamatsu wrote:
>
>> Signed-off-by: Nobuhiro Iwamatsu <nobuhiro.iwamatsu.yj@...esas.com>
>> ---
> [...]
>
>> diff --git a/drivers/net/ethernet/renesas/sh_eth.c b/drivers/net/ethernet/renesas/sh_eth.c
>> index 5c4e82c..7de0b0e 100644
>> --- a/drivers/net/ethernet/renesas/sh_eth.c
>> +++ b/drivers/net/ethernet/renesas/sh_eth.c
> [...]
>> @@ -2597,16 +2591,11 @@ static const u16 *sh_eth_get_register_offset(int register_type)
>> return reg_offset;
>> }
>>
>> -static const struct net_device_ops sh_eth_netdev_ops = {
>> +static struct net_device_ops sh_eth_netdev_ops = {
>> .ndo_open = sh_eth_open,
>> .ndo_stop = sh_eth_close,
>> .ndo_start_xmit = sh_eth_start_xmit,
>> .ndo_get_stats = sh_eth_get_stats,
>> -#if defined(SH_ETH_HAS_TSU)
>> - .ndo_set_rx_mode = sh_eth_set_multicast_list,
>> - .ndo_vlan_rx_add_vid = sh_eth_vlan_rx_add_vid,
>> - .ndo_vlan_rx_kill_vid = sh_eth_vlan_rx_kill_vid,
>> -#endif
>> .ndo_tx_timeout = sh_eth_tx_timeout,
>> .ndo_do_ioctl = sh_eth_do_ioctl,
>> .ndo_validate_addr = eth_validate_addr,
>> @@ -2687,6 +2676,15 @@ static int sh_eth_drv_probe(struct platform_device *pdev)
>> sh_eth_set_default_cpu_data(mdp->cd);
>>
>> /* set function */
>> + if (mdp->cd->tsu) {
>> + sh_eth_netdev_ops.ndo_set_rx_mode
>> + = sh_eth_set_multicast_list;
>> + sh_eth_netdev_ops.ndo_vlan_rx_add_vid
>> + = sh_eth_vlan_rx_add_vid;
>> + sh_eth_netdev_ops.ndo_vlan_rx_kill_vid
>> + = sh_eth_vlan_rx_kill_vid;
>> + }
>> +
>
> What if there's multiple Ether devices, only one of which has TSU? Or that never happens?
>

Now, the device with TSU has TSU matually.
I think that it is no problem now.
Althought it is also considered that only one of the two will have
TSU in the future, I don't think that it is necessary to correspond
now since there is no device.

Of cource, I think that the coreesponding good.

Best regards,
   Nobuhiro

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