netdev - Re: [PATCH net-next 2/9] net/ipv4: Plumb support for filtering route dumps

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Date:   Thu, 11 Oct 2018 20:30:16 +0200
From:   Andrew Lunn <andrew@...n.ch>
To:     David Ahern <dsahern@...il.com>
Cc:     David Ahern <dsahern@...nel.org>, netdev@...r.kernel.org,
        davem@...emloft.net
Subject: Re: [PATCH net-next 2/9] net/ipv4: Plumb support for filtering route
 dumps

On Thu, Oct 11, 2018 at 10:44:04AM -0600, David Ahern wrote:
> On 10/11/18 9:56 AM, Andrew Lunn wrote:
> >> @@ -866,10 +866,13 @@ static int inet_dump_fib(struct sk_buff *skb, struct netlink_callback *cb)
> >>  		hlist_for_each_entry_rcu(tb, head, tb_hlist) {
> >>  			if (e < s_e)
> >>  				goto next;
> >> +			if (filter.table_id && filter.table_id != tb->tb_id)
> >> +				goto next;
> >> +
> > 
> > Hi David
> > 
> > Should there be a test here that filter->filter_set is set, before
> > looking at filter.table_id.
> 
> filter_set is meant for places that would need to look at multiple flags.

Hi David

It would be good to add some comments to struct fib_dump_filter. Maybe
also move table_id before filter_set, to try to indicate it is not
relevant for the table_id.

	 Andrew