netdev - Re: [PATCH] ipv4: allow newer DSCP values in ip rules

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Message-Id: <20181119.151129.775973936240461162.davem@davemloft.net>
Date:   Mon, 19 Nov 2018 15:11:29 -0800 (PST)
From:   David Miller <davem@...emloft.net>
To:     mail@...d.so
Cc:     netdev@...r.kernel.org
Subject: Re: [PATCH] ipv4: allow newer DSCP values in ip rules

From: Pavel Balaev <mail@...d.so>
Date: Mon, 19 Nov 2018 12:00:45 +0300

> After this patch this one can use it: 

You can "configure it" but it doesn't work at all.

Did you test this in any way beyond simply dumping the FIB rule
tables?

The whole kernel masks the TOS value using RT_TOS() so it is going to
clear out those extra bits every time the configured value actually
gets used.