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| author | Guillaume Nault <gnault@redhat.com> | 2024-04-05 22:05:00 +0200 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2024-04-08 13:20:51 +0100 |
| commit | ec20b283009346adc66d5a460b1f8fb5adafbcfe (patch) | |
| tree | 36b9dfa207e7d4d663dd41d84f8aae36da254627 /net/mpls | |
| parent | 229783970838887e72083820efb9270b7f276a11 (diff) | |
| download | lwn-ec20b283009346adc66d5a460b1f8fb5adafbcfe.tar.gz lwn-ec20b283009346adc66d5a460b1f8fb5adafbcfe.zip | |
ipv4: Set scope explicitly in ip_route_output().
Add a "scope" parameter to ip_route_output() so that callers don't have
to override the tos parameter with the RTO_ONLINK flag if they want a
local scope.
This will allow converting flowi4_tos to dscp_t in the future, thus
allowing static analysers to flag invalid interactions between
"tos" (the DSCP bits) and ECN.
Only three users ask for local scope (bonding, arp and atm). The others
continue to use RT_SCOPE_UNIVERSE. While there, add a comment to warn
users about the limitations of ip_route_output().
Signed-off-by: Guillaume Nault <gnault@redhat.com>
Acked-by: Leon Romanovsky <leonro@nvidia.com> # infiniband
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/mpls')
| -rw-r--r-- | net/mpls/af_mpls.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/net/mpls/af_mpls.c b/net/mpls/af_mpls.c index 6dab883a08dd..1303acb9cdd2 100644 --- a/net/mpls/af_mpls.c +++ b/net/mpls/af_mpls.c @@ -594,7 +594,7 @@ static struct net_device *inet_fib_lookup_dev(struct net *net, struct in_addr daddr; memcpy(&daddr, addr, sizeof(struct in_addr)); - rt = ip_route_output(net, daddr.s_addr, 0, 0, 0); + rt = ip_route_output(net, daddr.s_addr, 0, 0, 0, RT_SCOPE_UNIVERSE); if (IS_ERR(rt)) return ERR_CAST(rt); |