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Date:   Tue, 19 Feb 2019 13:40:50 +0100
From:   walter harms <wharms@....de>
To:     Mao Wenan <maowenan@...wei.com>
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,
        julia.lawall@...6.fr
Subject: Re: [PATCH v3] net: ns83820: code cleanup for ns83820_probe_phy()



Am 19.02.2019 10:06, schrieb Mao Wenan:
> This patch is to do code cleanup for ns83820_probe_phy().
> It deletes unused variable 'first' and commented out code.
> 
> Signed-off-by: Mao Wenan <maowenan@...wei.com>
> ---
>  v2->v3: delte unused variable 'first'; change subject from 
>  "net: ns83820: drop pointless static qualifier in ns83820_probe_phy()" to
>  "net: ns83820: code cleanup for ns83820_probe_phy()". 
>  drivers/net/ethernet/natsemi/ns83820.c | 18 ------------------
>  1 file changed, 18 deletions(-)
> 
> diff --git a/drivers/net/ethernet/natsemi/ns83820.c b/drivers/net/ethernet/natsemi/ns83820.c
> index 958fced4dacf..955d34a6f0d8 100644
> --- a/drivers/net/ethernet/natsemi/ns83820.c
> +++ b/drivers/net/ethernet/natsemi/ns83820.c
> @@ -1869,34 +1869,16 @@ 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 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++) {
>  		int j;
>  		unsigned a, b;
>  		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,

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