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linux/net/core
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Brian Haley 62e395f82d neighbor: fix proxy_delay usage when it is zero 
When set to zero, the neighbor sysctl proxy_delay value
does not cause an immediate reply for ARP/ND requests
as expected, it instead causes a random delay between
[0, U32_MAX). Looking at this comment from
__get_random_u32_below() explains the reason:

/*
 * This function is technically undefined for ceil == 0, and in fact
 * for the non-underscored constant version in the header, we build bug
 * on that. But for the non-constant case, it's convenient to have that
 * evaluate to being a straight call to get_random_u32(), so that
 * get_random_u32_inclusive() can work over its whole range without
 * undefined behavior.
 */

Added helper function that does not call get_random_u32_below()
if proxy_delay is zero and just uses the current value of
jiffies instead, causing pneigh_enqueue() to respond
immediately.

Also added definition of proxy_delay to ip-sysctl.txt since
it was missing.

Signed-off-by: Brian Haley <haleyb.dev@gmail.com>
Link: https://lore.kernel.org/r/20230130171428.367111-1-haleyb.dev@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2023-02-01 21:02:54 -08:00
..
bpf_sk_storage.c bpf: Fix a compilation failure with clang lto build 2022-11-30 17:13:25 -08:00
datagram.c tcp: TX zerocopy should not sense pfmemalloc status 2022-09-02 12:29:02 +01:00
dev_addr_lists_test.c kunit: Use KUNIT_EXPECT_MEMEQ macro 2022-10-27 02:40:14 -06:00
dev_addr_lists.c net: extract a few internals from netdevice.h 2022-04-07 20:32:09 -07:00
dev_ioctl.c net: dev: Convert sa_data to flexible array in struct sockaddr 2022-10-25 11:44:20 -07:00
dev.c net: add gso_ipv4_max_size and gro_ipv4_max_size per device 2023-02-01 20:54:27 -08:00
dev.h net: add gso_ipv4_max_size and gro_ipv4_max_size per device 2023-02-01 20:54:27 -08:00
drop_monitor.c genetlink: introduce split op representation 2022-11-07 12:30:16 +00:00
dst_cache.c wireguard: device: reset peer src endpoint when netns exits 2021-11-29 19:50:45 -08:00
dst.c ipv6: remove max_size check inline with ipv4 2023-01-13 20:59:14 -08:00
failover.c net: failover: use IFF_NO_ADDRCONF flag to prevent ipv6 addrconf 2022-12-12 15:18:25 -08:00
fib_notifier.c
fib_rules.c fib: expand fib_rule_policy 2021-12-16 07:18:35 -08:00
filter.c bpf-next-for-netdev 2023-01-28 00:00:14 -08:00
flow_dissector.c Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2022-11-29 13:04:52 -08:00
flow_offload.c net: flow_offload: add support for ARP frame matching 2022-11-14 11:24:16 +00:00
gen_estimator.c treewide: Convert del_timer*() to timer_shutdown*() 2022-12-25 13:38:09 -08:00
gen_stats.c net: Remove the obsolte u64_stats_fetch_*_irq() users (net). 2022-10-28 20:13:54 -07:00
gro_cells.c net: drop the weight argument from netif_napi_add 2022-09-28 18:57:14 -07:00
gro.c net: add support for ipv4 big tcp 2023-02-01 20:54:27 -08:00
hwbm.c
link_watch.c net: linkwatch: only report IF_OPER_LOWERLAYERDOWN if iflink is actually down 2022-11-16 09:45:00 +00:00
lwt_bpf.c bpf, lwt: Fix crash when using bpf_skb_set_tunnel_key() from bpf_xmit lwt hook 2022-04-22 17:45:25 +02:00
lwtunnel.c xfrm: lwtunnel: squelch kernel warning in case XFRM encap type is not available 2022-10-12 10:45:51 +02:00
Makefile devlink: move code to a dedicated directory 2023-01-05 22:12:00 -08:00
neighbour.c neighbor: fix proxy_delay usage when it is zero 2023-02-01 21:02:54 -08:00
net_namespace.c net: fix UaF in netns ops registration error path 2023-01-20 18:51:18 -08:00
net-procfs.c net: extract a few internals from netdevice.h 2022-04-07 20:32:09 -07:00
net-sysfs.c Driver Core changes for 6.2-rc1 2022-12-16 03:54:54 -08:00
net-sysfs.h
net-traces.c net/sock: Introduce trace_sk_data_ready() 2023-01-23 11:26:50 +00:00
netclassid_cgroup.c core: Variable type completion 2022-08-31 09:40:34 +01:00
netevent.c
netpoll.c netpoll: Remove 4s sleep during carrier detection 2023-01-27 23:24:07 -08:00
netprio_cgroup.c bpf, cgroups: Fix cgroup v2 fallback on v1/v2 mixed mode 2021-09-13 16:35:58 -07:00
of_net.c of: net: export of_get_mac_address_nvmem() 2022-11-29 10:45:53 +01:00
page_pool.c - The usual batches of cleanups from Baoquan He, Muchun Song, Miaohe 2022-08-05 16:32:45 -07:00
pktgen.c treewide: use get_random_u32_inclusive() when possible 2022-11-18 02:18:02 +01:00
ptp_classifier.c ptp: Add generic PTP is_sync() function 2022-03-07 11:31:34 +00:00
request_sock.c
rtnetlink.c net: add gso_ipv4_max_size and gro_ipv4_max_size per device 2023-02-01 20:54:27 -08:00
scm.c memcg: enable accounting for scm_fp_list objects 2021-07-20 06:00:38 -07:00
secure_seq.c tcp: Fix data-races around sysctl knobs related to SYN option. 2022-07-20 10:14:49 +01:00
selftests.c net: core: constify mac addrs in selftests 2021-10-24 13:59:44 +01:00
skbuff.c net: skbuff: drop the linux/textsearch.h include 2023-01-27 11:19:46 +00:00
skmsg.c net/sock: Introduce trace_sk_data_ready() 2023-01-23 11:26:50 +00:00
sock_destructor.h skb_expand_head() adjust skb->truesize incorrectly 2021-10-22 12:35:51 -07:00
sock_diag.c net: fix __sock_gen_cookie() 2022-11-21 20:36:30 -08:00
sock_map.c bpf, sockmap: fix race in sock_map_free() 2022-12-04 18:53:51 -08:00
sock_reuseport.c soreuseport: Fix socket selection for SO_INCOMING_CPU. 2022-10-25 11:35:16 +02:00
sock.c net: add support for ipv4 big tcp 2023-02-01 20:54:27 -08:00
stream.c net: stream: purge sk_error_queue in sk_stream_kill_queues() 2022-12-19 12:33:16 +00:00
sysctl_net_core.c sysctl: expose all net/core sysctls inside netns 2023-01-06 12:41:52 +00:00
timestamping.c
tso.c net: tso: inline tso_count_descs() 2022-12-12 15:04:39 -08:00
utils.c net: core: inet[46]_pton strlen len types 2022-11-01 21:14:39 -07:00
xdp.c bpf: XDP metadata RX kfuncs 2023-01-23 09:38:11 -08:00