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ipv4: Prepare ipmr_rt_fib_lookup() to future .flowi4_tos conversion.

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Use ip4h_dscp() to get the DSCP from the IPv4 header, then convert the
dscp_t value to __u8 with inet_dscp_to_dsfield().

Then, when we'll convert .flowi4_tos to dscp_t, we'll just have to drop
the inet_dscp_to_dsfield() call.

Signed-off-by: Guillaume Nault <gnault@redhat.com>
Reviewed-by: Ido Schimmel <idosch@nvidia.com>
Link: https://patch.msgid.link/462402a097260357a7aba80228612305f230b6a9.1729530028.git.gnault@redhat.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
This commit is contained in:
Guillaume Nault 2024-10-22 11:48:15 +02:00 committed by Jakub Kicinski
parent 0ed373390c
commit 6ab04392dd
1 changed files with 1 additions and 1 deletions
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net/ipv4/ipmr.c
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@ -2081,7 +2081,7 @@ static struct mr_table *ipmr_rt_fib_lookup(struct net *net, struct sk_buff *skb)
struct flowi4 fl4 = {
.daddr = iph->daddr,
.saddr = iph->saddr,
.flowi4_tos = iph->tos & INET_DSCP_MASK,
.flowi4_tos = inet_dscp_to_dsfield(ip4h_dscp(iph)),
.flowi4_oif = (rt_is_output_route(rt) ?
skb->dev->ifindex : 0),
.flowi4_iif = (rt_is_output_route(rt) ?