netdev - Re: [PATCH net] fib_rules: don't break ECN with TOS rules

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Message-ID: <c5fb0fbf-6b8e-a479-198a-817ff9071d74@cumulusnetworks.com>
Date:	Sun, 12 Jun 2016 16:18:07 -0600
From:	David Ahern <dsa@...ulusnetworks.com>
To:	Hannes Frederic Sowa <hannes@...essinduktion.org>,
	netdev@...r.kernel.org
Cc:	Florian Westphal <fw@...len.de>
Subject: Re: [PATCH net] fib_rules: don't break ECN with TOS rules

On 6/11/16 3:10 PM, Hannes Frederic Sowa wrote:
> @@ -215,6 +216,9 @@ static int fib4_rule_configure(struct fib_rule *rule, struct sk_buff *skb,
>  	rule4->dst_len = frh->dst_len;
>  	rule4->dstmask = inet_make_mask(rule4->dst_len);
>  	rule4->tos = frh->tos;
> +	if (!INET_ECN_ignore(rule4->tos))
> +		pr_warn("ipv4: never matching ipv4 rule with match for %x added\n",
> +			rule4->tos);
>

The wording of the warning message is not very clear on what the problem is.