netdev - Re: [PATCH 3/8] net: sh-eth: Remove duplicate sh_eth_set

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Message-id: <51888A81.2000602@renesas.com>
Date:	Tue, 07 May 2013 14:00:49 +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 3/8] net: sh-eth: Remove duplicate sh_eth_set_duplex()

Hi,

(2013/04/18 23:12), Sergei Shtylyov wrote:
> Hello.
>
> On 18-04-2013 11:01, Nobuhiro Iwamatsu wrote:
>
>> Signed-off-by: Nobuhiro Iwamatsu <nobuhiro.iwamatsu.yj@...esas.com>
>
> Step in the right direction.
>
>> diff --git a/drivers/net/ethernet/renesas/sh_eth.c b/drivers/net/ethernet/renesas/sh_eth.c
>> index 313d6ef..5c4e82c 100644
>> --- a/drivers/net/ethernet/renesas/sh_eth.c
>> +++ b/drivers/net/ethernet/renesas/sh_eth.c
>> @@ -341,9 +341,11 @@ static void sh_eth_select_mii(struct net_device *ndev)
>> }
>> #endif
>>
>> -/* There is CPU dependent code */
>> -#if defined(CONFIG_ARCH_R8A7779)
>> -#define SH_ETH_RESET_DEFAULT 1
>> +#if defined(CONFIG_CPU_SUBTYPE_SH7619) || \
>> + defined(CONFIG_CPU_SUBTYPE_SH7710) || \
>> + defined(CONFIG_CPU_SUBTYPE_SH7712)
>> +# define sh_eth_set_duplex NULL
>
> I don't think this is neeeded at all.
>
>> +#else
>> static void sh_eth_set_duplex(struct net_device *ndev)
>> {
>> struct sh_eth_private *mdp = netdev_priv(ndev);
>> @@ -353,7 +355,11 @@ static void sh_eth_set_duplex(struct net_device *ndev)
>> else /* Half */
>> sh_eth_write(ndev, sh_eth_read(ndev, ECMR) & ~ECMR_DM, ECMR);
>> }
>> +#endif
>>
>> +/* There is CPU dependent code */
>> +#if defined(CONFIG_ARCH_R8A7779)
>> +#define SH_ETH_RESET_DEFAULT 1
>> static void sh_eth_set_rate(struct net_device *ndev)
>> {
>> struct sh_eth_private *mdp = netdev_priv(ndev);
> [...]
>> @@ -834,6 +791,7 @@ static struct sh_eth_cpu_data sh_eth_my_cpu_data = {
>> #elif defined(CONFIG_CPU_SUBTYPE_SH7619)
>> #define SH_ETH_RESET_DEFAULT 1
>> static struct sh_eth_cpu_data sh_eth_my_cpu_data = {
>> + .set_duplex = sh_eth_set_duplex,
>
> Please, align = like in other initializers.
> Wait, is this change legitimate at all? You mean NULL will be set here?
> But why bother doing this, when 0s will be set to all fields without
> explicit initializer?

Yah, this is mybad.

>
>> .eesipr_value = DMAC_M_RFRMER | DMAC_M_ECI | 0x003fffff,
>>
>> .apr = 1,
>> @@ -845,6 +803,7 @@ static struct sh_eth_cpu_data sh_eth_my_cpu_data = {
>> #define SH_ETH_RESET_DEFAULT 1
>> #define SH_ETH_HAS_TSU 1
>> static struct sh_eth_cpu_data sh_eth_my_cpu_data = {
>> + .set_duplex = sh_eth_set_duplex,
>
> Same coments here.
>
I see.
I will remove sh_eth_set_duplex from SH7619, SH7710 and SH7712.

Thanks,
   Nobuhiro


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