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

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Date:   Tue, 19 Feb 2019 16:09:41 +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] net: ns83820: drop pointless static qualifier in
 ns83820_probe_phy()



On 2019/2/19 16:01, 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.
>> The old codes of first dereferencing this variable have
>> been commented out. So it is useless with 'static int first'.
>> /*
>> if (!first) {
>>  ...
>> }
>> */
>> first = 1;
> 
> Do you need the variable at all?
> 
> In the code, the commenting out is actually done with #if 0.  It could be
> good for the commit log to reflect the code more accurately.
> 
OK, the original codes are using #if 0 to comment out, but when I generate patch
the "#if 0" has been removed, so I use "/*...*/" to reflect that.

> Can the #if 0 and code be removed?  Apparently it predates git.
> 
> A commented out printk below also predates git.
> 
I think all the "#if 0" comment out codes and printk codes can be removed, shall I send
v2 to do this?

> julia
> 
>>
>> Signed-off-by: Mao Wenan <maowenan@...wei.com>
>> ---
>>  drivers/net/ethernet/natsemi/ns83820.c | 2 +-
>>  1 file changed, 1 insertion(+), 1 deletion(-)
>>
>> diff --git a/drivers/net/ethernet/natsemi/ns83820.c b/drivers/net/ethernet/natsemi/ns83820.c
>> index 958fced4dacf..fb064df3a1a6 100644
>> --- a/drivers/net/ethernet/natsemi/ns83820.c
>> +++ b/drivers/net/ethernet/natsemi/ns83820.c
>> @@ -1869,7 +1869,7 @@ 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
>> --
>> 2.20.1
>>
>>
> 
> .
>