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Date:   Mon, 3 Aug 2020 12:48:17 -0700
From:   Jakub Kicinski <>
To:     Ahmed Abdelsalam <>
Subject: Re: [net-next v2] seg6: using DSCP of inner IPv4 packets

On Mon,  3 Aug 2020 18:14:17 +0000 Ahmed Abdelsalam wrote:
> This patch allows copying the DSCP from inner IPv4 header to the
> outer IPv6 header, when doing SRv6 Encapsulation.
> This allows forwarding packet across the SRv6 fabric based on their
> original traffic class.
> Signed-off-by: Ahmed Abdelsalam <>

Please make sure it builds cleanly with W=1 C=1:

net/ipv6/seg6_iptunnel.c:131:21: warning: incorrect type in assignment (different base types)
net/ipv6/seg6_iptunnel.c:131:21:    expected restricted __be32 [usertype] tos
net/ipv6/seg6_iptunnel.c:131:21:    got unsigned char
net/ipv6/seg6_iptunnel.c:133:21: warning: incorrect type in assignment (different base types)
net/ipv6/seg6_iptunnel.c:133:21:    expected restricted __be32 [usertype] tos
net/ipv6/seg6_iptunnel.c:133:21:    got unsigned char [usertype] tos
net/ipv6/seg6_iptunnel.c:144:27: warning: incorrect type in argument 2 (different base types)
net/ipv6/seg6_iptunnel.c:144:27:    expected unsigned int tclass
net/ipv6/seg6_iptunnel.c:144:27:    got restricted __be32 [usertype] tos

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