netdev - RE: [PATCH][net-next] net: drop_monitor: change the stats variable to u64 in net_dm_stats

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Date:   Thu, 29 Aug 2019 13:45:57 +0000
From:   David Laight <David.Laight@...LAB.COM>
To:     "'Li,Rongqing'" <lirongqing@...du.com>,
        Ido Schimmel <idosch@...sch.org>
CC:     "netdev@...r.kernel.org" <netdev@...r.kernel.org>,
        "idosch@...lanox.com" <idosch@...lanox.com>
Subject: RE: [PATCH][net-next] net: drop_monitor: change the stats variable to
 u64 in net_dm_stats_put

From: Li,Rongqing
> Sent: 22 August 2019 13:32
> > On Thu, Aug 22, 2019 at 02:22:33PM +0800, Li RongQing wrote:
> > > only the element drop of struct net_dm_stats is used, so simplify it
> > > to u64
> >
> > Thanks for the patch, but I don't really see the value here. The struct allows for
> > easy extensions in the future. What do you gain from this change? We merely
> > read stats and report them to user space, so I guess it's not about
> > performance either.
> >
> 
> I think u64 can reduce to call memset and dereference stats.drop

The compiler should inline the memset().

Also you should have called it 'dropped' not 'stats'.

	David

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