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Message-ID: <1467029338.1847.106.camel@perches.com>
Date:	Mon, 27 Jun 2016 05:08:58 -0700
From:	Joe Perches <joe@...ches.com>
To:	Andy Shevchenko <andriy.shevchenko@...ux.intel.com>,
	Yisen Zhuang <Yisen.Zhuang@...wei.com>, davem@...emloft.net,
	salil.mehta@...wei.com, yankejian@...wei.com
Cc:	liguozhu@...wei.com, huangdaode@...ilicon.com, arnd@...db.de,
	andrew@...n.ch, geliangtang@....com, ivecera@...hat.com,
	fengguang.wu@...el.com, charles.chenxin@...wei.com,
	netdev@...r.kernel.org, linux-kernel@...r.kernel.org,
	linux-arm-kernel@...ts.infradead.org, linuxarm@...wei.com
Subject: Re: [PATCH net-next 6/9] net: hns: normalize two different loop

On Mon, 2016-06-27 at 15:00 +0300, Andy Shevchenko wrote:
> On Mon, 2016-06-27 at 04:49 -0700, Joe Perches wrote:
> > 
> > On Mon, 2016-06-27 at 17:54 +0800, Yisen Zhuang wrote:
> > > 
> > > From: Daode Huang <huangdaode@...ilicon.com>
> > > 
> > > There are two approaches to assign data, one does 2 loops, another
> > > does 1 loop. This patch normalize the different methods to 1 loop.
> > []
> > > 
> > > diff --git a/drivers/net/ethernet/hisilicon/hns/hns_dsaf_main.c
> > > b/drivers/net/ethernet/hisilicon/hns/hns_dsaf_main.c
> > []
> > > 
> > > @@ -2567,15 +2567,15 @@ static char
> > > *hns_dsaf_get_node_stats_strings(char *data, int node,
> > >  	buff += ETH_GSTRING_LEN;
> > >  	if (node < DSAF_SERVICE_NW_NUM && !is_ver1) {
> > >  		for (i = 0; i < DSAF_PRIO_NR; i++) {
> > > -			snprintf(buff, ETH_GSTRING_LEN,
> > > -				 "inod%d_pfc_prio%d_pkts", node,
> > > i);
> > > -			buff += ETH_GSTRING_LEN;
> > > -		}
> > > -		for (i = 0; i < DSAF_PRIO_NR; i++) {
> > > -			snprintf(buff, ETH_GSTRING_LEN,
> > > -				 "onod%d_pfc_prio%d_pkts", node,
> > > i);
> > > +			snprintf(buff + 0 * ETH_GSTRING_LEN *
> > > DSAF_PRIO_NR,
> > > +				 ETH_GSTRING_LEN,
> > > "inod%d_pfc_prio%d_pkts",
> > > +				 node, i);
> > > +			snprintf(buff + 1 * ETH_GSTRING_LEN *
> > > DSAF_PRIO_NR,
> > > +				 ETH_GSTRING_LEN,
> > > "onod%d_pfc_prio%d_pkts",
> > > +				 node, i);
> > >  			buff += ETH_GSTRING_LEN;
> > This looks odd and likely incorrect.
> Why? the idea is to print stats for Rx and Tx at once.
> 
> I hope it was tested.

It changes the order of the strings in buff.
Is a bug fix or a style fix?

If it's a bug fix, then it should likely be added
to the stable trees.

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