netdev - Re: [patch net-next v2 06/10] net: sched: allow ingress and clsact qdiscs to share filter blocks

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Date:   Mon, 13 Nov 2017 00:05:26 -0800
From:   Jakub Kicinski <jakub.kicinski@...ronome.com>
To:     Jiri Pirko <jiri@...nulli.us>
Cc:     netdev@...r.kernel.org, davem@...emloft.net, jhs@...atatu.com,
        xiyou.wangcong@...il.com, mlxsw@...lanox.com, andrew@...n.ch,
        vivien.didelot@...oirfairelinux.com, f.fainelli@...il.com,
        ast@...nel.org, daniel@...earbox.net, simon.horman@...ronome.com,
        pieter.jansenvanvuuren@...ronome.com, john.hurley@...ronome.com
Subject: Re: [patch net-next v2 06/10] net: sched: allow ingress and clsact
 qdiscs to share filter blocks

On Mon, 13 Nov 2017 08:56:58 +0100, Jiri Pirko wrote:
> Mon, Nov 13, 2017 at 08:54:52AM CET, jakub.kicinski@...ronome.com wrote:
> >On Sun, 12 Nov 2017 16:56:00 +0100, Jiri Pirko wrote:  
> >> diff --git a/net/sched/sch_ingress.c b/net/sched/sch_ingress.c
> >> index 5ecc38f..ee89efc 100644
> >> --- a/net/sched/sch_ingress.c
> >> +++ b/net/sched/sch_ingress.c
> >> @@ -60,6 +60,29 @@ static void clsact_chain_head_change(struct tcf_proto *tp_head, void *priv)
> >>  	struct mini_Qdisc_pair *miniqp = priv;
> >>  
> >>  	mini_qdisc_pair_swap(miniqp, tp_head);
> >> +};
> >> +
> >> +static const struct nla_policy ingress_policy[TCA_CLSACT_MAX + 1] = {
> >> +	[TCA_CLSACT_INGRESS_BLOCK]	= { .type = NLA_U32 },
> >> +};
> >> +
> >> +static int ingress_parse_opt(struct nlattr *opt, u32 *p_ingress_block_index)  
> >
> >nit: why the p_ prefix on all the pointers?  
> 
> Just to diferenciate:
> u32 *ingress_block_index
> and
> u32 ingress_block_index

But why?  There isn't a single ingress_block_index in this patch.
Looks like Hungarian notation.