linux/net/ipv4
Ido Schimmel 5d9b7cb383 nexthop: Simplify dump error handling
The only error that can happen during a nexthop dump is insufficient
space in the skb caring the netlink messages (EMSGSIZE). If this happens
and some messages were already filled in, the nexthop code returns the
skb length to signal the netlink core that more objects need to be
dumped.

After commit b5a899154a ("netlink: handle EMSGSIZE errors in the
core") there is no need to handle this error in the nexthop code as it
is now handled in the core.

Simplify the code and simply return the error to the core.

No regressions in nexthop tests:

 # ./fib_nexthops.sh
 Tests passed: 234
 Tests failed:   0

Signed-off-by: Ido Schimmel <idosch@nvidia.com>
Reviewed-by: David Ahern <dsahern@kernel.org>
Link: https://lore.kernel.org/r/20240307154727.3555462-1-idosch@nvidia.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-03-08 11:39:12 -08:00
..
netfilter netfilter: xtables: fix up kconfig dependencies 2024-02-21 11:57:11 +01:00
af_inet.c net: introduce include/net/rps.h 2024-03-07 21:12:43 -08:00
ah4.c net: fill in MODULE_DESCRIPTION()s for ipv4 modules 2024-02-09 14:12:02 -08:00
arp.c arp: Prevent overflow in arp_req_get(). 2024-02-20 10:50:19 +01:00
bpf_tcp_ca.c bpf: treewide: Annotate BPF kfuncs in BTF 2024-01-31 20:40:56 -08:00
cipso_ipv4.c netlabel: remove impossible return value in netlbl_bitmap_walk 2024-02-28 19:37:34 -08:00
datagram.c ipv4: Set the routing scope properly in ip_route_output_ports(). 2024-02-12 17:33:05 -08:00
devinet.c netlink: let core handle error cases in dump operations 2024-03-07 20:48:22 -08:00
esp4_offload.c xfrm: Support GRO for IPv4 ESP in UDP encapsulation 2023-10-06 07:30:40 +02:00
esp4.c net: fill in MODULE_DESCRIPTION()s for ipv4 modules 2024-02-09 14:12:02 -08:00
fib_frontend.c netlink: let core handle error cases in dump operations 2024-03-07 20:48:22 -08:00
fib_lookup.h
fib_notifier.c
fib_rules.c fib: remove unnecessary input parameters in fib_default_rule_add 2024-01-03 16:42:48 -08:00
fib_semantics.c ipv4: fib: annotate races around nh->nh_saddr_genid and nh->nh_saddr 2023-10-18 18:11:31 -07:00
fib_trie.c inet: switch inet_dump_fib() to RCU protection 2024-02-26 11:46:13 +00:00
fou_bpf.c bpf: treewide: Annotate BPF kfuncs in BTF 2024-01-31 20:40:56 -08:00
fou_core.c net: gro: rename skb_gro_header_hard() 2024-03-05 13:30:11 +01:00
fou_nl.c net: ynl: prefix uAPI header include with uapi/ 2023-05-26 10:30:14 +01:00
fou_nl.h net: ynl: prefix uAPI header include with uapi/ 2023-05-26 10:30:14 +01:00
gre_demux.c
gre_offload.c net: gro: rename skb_gro_header_hard() 2024-03-05 13:30:11 +01:00
icmp.c xfrm: pass struct net to xfrm_decode_session wrappers 2023-10-06 08:31:53 +02:00
igmp.c inet: annotate devconf data-races 2024-02-28 19:36:39 -08:00
inet_connection_sock.c sock: Use unsafe_memcpy() for sock_copy() 2024-03-05 18:35:12 -08:00
inet_diag.c inet_diag: skip over empty buckets 2024-01-23 15:13:55 +01:00
inet_fragment.c net: dropreason: add SKB_DROP_REASON_FRAG_REASM_TIMEOUT 2022-10-31 20:14:27 -07:00
inet_hashtables.c inet: move inet_ehash_secret and udp_ehash_secret into net_hotdata 2024-03-07 21:12:43 -08:00
inet_timewait_sock.c tcp: Link sk and twsk to tb2->owners using skc_bind_node. 2023-12-22 22:15:35 +00:00
inetpeer.c net: ipv4: Simplify the allocation of slab caches in inet_initpeers 2024-01-31 16:39:42 -08:00
ip_forward.c net: fix IPSTATS_MIB_OUTFORWDATAGRAMS increment after fragment check 2023-10-13 09:58:45 -07:00
ip_fragment.c networking: Update to register_net_sysctl_sz 2023-08-15 15:26:18 -07:00
ip_gre.c Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2024-02-15 16:20:04 -08:00
ip_input.c ipv4: ignore dst hint for multipath routes 2023-09-01 08:11:51 +01:00
ip_options.c
ip_output.c net: Re-use and set mono_delivery_time bit for userspace tstamp packets 2024-03-05 13:41:16 +01:00
ip_sockglue.c inet: Add getsockopt support for IP_ROUTER_ALERT and IPV6_ROUTER_ALERT 2024-03-06 12:37:06 +00:00
ip_tunnel_core.c tunnels: fix out of bounds access when building IPv6 PMTU error 2024-02-03 12:43:19 +00:00
ip_tunnel.c Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2024-02-29 14:24:56 -08:00
ip_vti.c Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2024-02-15 16:20:04 -08:00
ipcomp.c
ipconfig.c net: ipconfig: move ic_nameservers_fallback into #ifdef block 2023-05-22 11:17:55 +01:00
ipip.c Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2024-02-15 16:20:04 -08:00
ipmr_base.c
ipmr.c inet: allow ip_valid_fib_dump_req() to be called with RTNL or RCU 2024-02-26 11:46:12 +00:00
Kconfig net/tcp: Add TCP-AO config and structures 2023-10-27 10:35:44 +01:00
Makefile bpfilter: remove bpfilter 2024-01-04 10:23:10 -08:00
metrics.c ipv4: prevent potential spectre v1 gadget in ip_metrics_convert() 2023-01-23 21:37:25 -08:00
netfilter.c xfrm: pass struct net to xfrm_decode_session wrappers 2023-10-06 08:31:53 +02:00
netlink.c
nexthop.c nexthop: Simplify dump error handling 2024-03-08 11:39:12 -08:00
ping.c bpf-next-for-netdev 2023-10-16 21:05:33 -07:00
proc.c inet: annotate devconf data-races 2024-02-28 19:36:39 -08:00
protocol.c
raw_diag.c inet_diag: add module pointer to "struct inet_diag_handler" 2024-01-23 15:13:54 +01:00
raw.c net: Re-use and set mono_delivery_time bit for userspace tstamp packets 2024-03-05 13:41:16 +01:00
route.c inet: annotate devconf data-races 2024-02-28 19:36:39 -08:00
syncookies.c tcp: use drop reasons in cookie check for ipv4 2024-02-28 10:39:21 +00:00
sysctl_net_ipv4.c Use READ/WRITE_ONCE() for IP local_port_range. 2023-12-08 10:44:42 -08:00
tcp_ao.c net: tcp: Remove redundant initialization of variable len 2024-02-20 11:40:15 +01:00
tcp_bbr.c bpf: treewide: Annotate BPF kfuncs in BTF 2024-01-31 20:40:56 -08:00
tcp_bic.c
tcp_bpf.c tcp_bpf: properly release resources on error paths 2023-10-18 18:09:31 -07:00
tcp_cdg.c
tcp_cong.c net: Update an existing TCP congestion control algorithm. 2023-03-22 22:53:00 -07:00
tcp_cubic.c bpf: treewide: Annotate BPF kfuncs in BTF 2024-01-31 20:40:56 -08:00
tcp_dctcp.c bpf: treewide: Annotate BPF kfuncs in BTF 2024-01-31 20:40:56 -08:00
tcp_dctcp.h
tcp_diag.c inet_diag: add module pointer to "struct inet_diag_handler" 2024-01-23 15:13:54 +01:00
tcp_fastopen.c inet: move inet->defer_connect to inet->inet_flags 2023-08-16 11:09:18 +01:00
tcp_highspeed.c
tcp_htcp.c
tcp_hybla.c
tcp_illinois.c
tcp_input.c tcp: add dropreasons in tcp_rcv_state_process() 2024-02-28 10:39:22 +00:00
tcp_ipv4.c tcp: make dropreason in tcp_child_process() work 2024-02-28 10:39:22 +00:00
tcp_lp.c tcp: rename tcp_time_stamp() to tcp_time_stamp_ts() 2023-10-23 09:35:01 +01:00
tcp_metrics.c tcp_metrics: optimize tcp_metrics_flush_all() 2023-10-03 10:05:22 +02:00
tcp_minisocks.c tcp: make the dropreason really work when calling tcp_rcv_state_process() 2024-02-28 10:39:22 +00:00
tcp_nv.c
tcp_offload.c net: move tcpv4_offload and tcpv6_offload to net_hotdata 2024-03-07 21:12:42 -08:00
tcp_output.c net: Remove acked SYN flag from packet in the transmit queue correctly 2023-12-12 15:56:02 -08:00
tcp_plb.c prandom: remove prandom_u32_max() 2022-12-20 03:13:45 +01:00
tcp_rate.c
tcp_recovery.c tcp: fix excessive TLP and RACK timeouts from HZ rounding 2023-10-17 17:25:42 -07:00
tcp_scalable.c
tcp_sigpool.c net/tcp_sigpool: Use kref_get_unless_zero() 2024-01-01 14:42:05 +00:00
tcp_timer.c tcp: use tp->total_rto to track number of linear timeouts in SYN_SENT state 2023-11-16 23:35:12 +00:00
tcp_ulp.c net/ulp: use consistent error code when blocking ULP 2023-01-19 09:26:16 -08:00
tcp_vegas.c
tcp_vegas.h
tcp_veno.c
tcp_westwood.c
tcp_yeah.c
tcp.c net: introduce include/net/rps.h 2024-03-07 21:12:43 -08:00
tunnel4.c net: fill in MODULE_DESCRIPTION()s for ipv4 modules 2024-02-09 14:12:02 -08:00
udp_bpf.c bpf, sockmap: Fix an infinite loop error when len is 0 in tcp_bpf_recvmsg_parser() 2023-03-03 17:25:15 +01:00
udp_diag.c inet_diag: add module pointer to "struct inet_diag_handler" 2024-01-23 15:13:54 +01:00
udp_impl.h sock: Remove ->sendpage*() in favour of sendmsg(MSG_SPLICE_PAGES) 2023-06-24 15:50:13 -07:00
udp_offload.c udp: move udpv4_offload and udpv6_offload to net_hotdata 2024-03-07 21:12:43 -08:00
udp_tunnel_core.c net: fill in MODULE_DESCRIPTION()s for ipv4 modules 2024-02-09 14:12:02 -08:00
udp_tunnel_nic.c udp_tunnel: Use flex array to simplify code 2023-10-03 11:39:34 +02:00
udp_tunnel_stub.c
udp.c inet: move inet_ehash_secret and udp_ehash_secret into net_hotdata 2024-03-07 21:12:43 -08:00
udplite.c udplite: remove UDPLITE_BIT 2023-09-14 16:16:36 +02:00
xfrm4_input.c net: adopt skb_network_offset() and similar helpers 2024-03-04 08:47:06 +00:00
xfrm4_output.c
xfrm4_policy.c sysctl-6.6-rc1 2023-08-29 17:39:15 -07:00
xfrm4_protocol.c
xfrm4_state.c
xfrm4_tunnel.c net: fill in MODULE_DESCRIPTION()s for ipv4 modules 2024-02-09 14:12:02 -08:00