netdev - Re: [RFC PATCH net-next v2 1/4] flow_dissector: Add PPPoE dissectors

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Message-ID: <20220628214020.0f83fc21@kernel.org>
Date:   Tue, 28 Jun 2022 21:40:20 -0700
From:   Jakub Kicinski <kuba@...nel.org>
To:     Marcin Szycik <marcin.szycik@...ux.intel.com>
Cc:     netdev@...r.kernel.org, anthony.l.nguyen@...el.com,
        davem@...emloft.net, xiyou.wangcong@...il.com,
        jesse.brandeburg@...el.com, gustavoars@...nel.org,
        baowen.zheng@...igine.com, boris.sukholitko@...adcom.com,
        edumazet@...gle.com, jhs@...atatu.com, jiri@...nulli.us,
        kurt@...utronix.de, pablo@...filter.org, pabeni@...hat.com,
        paulb@...dia.com, simon.horman@...igine.com,
        komachi.yoshiki@...il.com, zhangkaiheb@....com,
        intel-wired-lan@...ts.osuosl.org,
        michal.swiatkowski@...ux.intel.com, wojciech.drewek@...el.com,
        alexandr.lobakin@...el.com
Subject: Re: [RFC PATCH net-next v2 1/4] flow_dissector: Add PPPoE
 dissectors

On Tue, 28 Jun 2022 13:29:15 +0200 Marcin Szycik wrote:
> +static bool is_ppp_proto_supported(__be16 proto)

What does supported mean in this context?

> +{
> +	switch (ntohs(proto)) {
> +	case PPP_AT:

Byte swap on the constant.

> +	case PPP_IPX:
> +	case PPP_VJC_COMP:
> +	case PPP_VJC_UNCOMP:
> +	case PPP_MP:
> +	case PPP_COMPFRAG:
> +	case PPP_COMP:
> +	case PPP_MPLS_UC:
> +	case PPP_MPLS_MC:
> +	case PPP_IPCP:
> +	case PPP_ATCP:
> +	case PPP_IPXCP:
> +	case PPP_IPV6CP:
> +	case PPP_CCPFRAG:
> +	case PPP_MPLSCP:
> +	case PPP_LCP:
> +	case PPP_PAP:
> +	case PPP_LQR:
> +	case PPP_CHAP:
> +	case PPP_CBCP:
> +		return true;
> +	default:
> +		return false;
> +	}
> +}