netdev - Re: [PATCH v2] net: ns83820: drop pointless static qualifier in ns83820_probe

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Date:   Tue, 19 Feb 2019 16:39:12 +0800
From:   maowenan <maowenan@...wei.com>
To:     Julia Lawall <julia.lawall@...6.fr>
CC:     <kernel-janitors@...r.kernel.org>, <netdev@...r.kernel.org>,
        <john.fastabend@...il.com>, <hawk@...nel.org>,
        <jakub.kicinski@...ronome.com>, <daniel@...earbox.net>,
        <ast@...nel.org>
Subject: Re: [PATCH v2] net: ns83820: drop pointless static qualifier in
 ns83820_probe_phy()



On 2019/2/19 16:31, Julia Lawall wrote:
> 
> 
> On Tue, 19 Feb 2019, Mao Wenan wrote:
> 
>> There is no need to have the 'int first' static
>> since new value always be assigned before use it.
>>
>> This patch cleans up the codes in ns83820_probe_phy() as well.
> 
> As mentioned previously, there is no use of first in the function at all,
> other than setting it to 1.  So it can be just dropped completely.
> 
OK, thank you for your comments.

> "codes" is also a word that I am particularly not fond of.  Just "code" is
> fine.
> 
> "cleans up" is not very specific about what is going on, and why.
> 

> julia
> 
>>
>> Signed-off-by: Mao Wenan <maowenan@...wei.com>
>> ---
>>  v1->v2: delete unused codes.
>>  drivers/net/ethernet/natsemi/ns83820.c | 17 +----------------
>>  1 file changed, 1 insertion(+), 16 deletions(-)
>>
>> diff --git a/drivers/net/ethernet/natsemi/ns83820.c b/drivers/net/ethernet/natsemi/ns83820.c
>> index 958fced4dacf..37694f6843fe 100644
>> --- a/drivers/net/ethernet/natsemi/ns83820.c
>> +++ b/drivers/net/ethernet/natsemi/ns83820.c
>> @@ -1869,23 +1869,11 @@ static unsigned ns83820_mii_write_reg(struct ns83820 *dev, unsigned phy, unsigne
>>  static void ns83820_probe_phy(struct net_device *ndev)
>>  {
>>  	struct ns83820 *dev = PRIV(ndev);
>> -	static int first;
>> +	int first;
>>  	int i;
>>  #define MII_PHYIDR1	0x02
>>  #define MII_PHYIDR2	0x03
>>
>> -#if 0
>> -	if (!first) {
>> -		unsigned tmp;
>> -		ns83820_mii_read_reg(dev, 1, 0x09);
>> -		ns83820_mii_write_reg(dev, 1, 0x10, 0x0d3e);
>> -
>> -		tmp = ns83820_mii_read_reg(dev, 1, 0x00);
>> -		ns83820_mii_write_reg(dev, 1, 0x00, tmp | 0x8000);
>> -		udelay(1300);
>> -		ns83820_mii_read_reg(dev, 1, 0x09);
>> -	}
>> -#endif
>>  	first = 1;
>>
>>  	for (i=1; i<2; i++) {
>> @@ -1894,9 +1882,6 @@ static void ns83820_probe_phy(struct net_device *ndev)
>>  		a = ns83820_mii_read_reg(dev, i, MII_PHYIDR1);
>>  		b = ns83820_mii_read_reg(dev, i, MII_PHYIDR2);
>>
>> -		//printk("%s: phy %d: 0x%04x 0x%04x\n",
>> -		//	ndev->name, i, a, b);
>> -
>>  		for (j=0; j<0x16; j+=4) {
>>  			dprintk("%s: [0x%02x] %04x %04x %04x %04x\n",
>>  				ndev->name, j,
>> --
>> 2.20.1
>>
>>
> 
> .
>