Toke Høiland-Jørgensen c87b4ecdbe sch_cake: Make sure we can write the IP header before changing DSCP bits ...

There is not actually any guarantee that the IP headers are valid before we
access the DSCP bits of the packets. Fix this using the same approach taken
in sch_dsmark.

Reported-by: Kevin Darbyshire-Bryant <kevin@darbyshire-bryant.me.uk>
Signed-off-by: Toke Høiland-Jørgensen <toke@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

2019-04-04 10:55:59 -07:00

78 KiB

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