kernel/linux.git/include/net/ndisc.h, branch v6.12.80

ipv6: eliminate ndisc_ops_is_useropt()

2024-08-13T00:23:57+00:00

as it doesn't seem to offer anything of value. There's only 1 trivial user: int lowpan_ndisc_is_useropt(u8 nd_opt_type) { return nd_opt_type == ND_OPT_6CO; } but there's no harm to always treating that as a useropt... Cc: David Ahern Cc: YOSHIFUJI Hideaki / 吉藤英明 Signed-off-by: Maciej Żenczykowski Link: https://patch.msgid.link/20240730003010.156977-1-maze@google.com Signed-off-by: Jakub Kicinski

sysctl: treewide: constify the ctl_table argument of proc_handlers

2024-07-24T18:59:29+00:00

const qualify the struct ctl_table argument in the proc_handler function signatures. This is a prerequisite to moving the static ctl_table structs into .rodata data which will ensure that proc_handler function pointers cannot be modified. This patch has been generated by the following coccinelle script: ``` virtual patch @r1@ identifier ctl, write, buffer, lenp, ppos; identifier func !~ "appldata_(timer|interval)_handler|sched_(rt|rr)_handler|rds_tcp_skbuf_handler|proc_sctp_do_(hmac_alg|rto_min|rto_max|udp_port|alpha_beta|auth|probe_interval)"; @@ int func( - struct ctl_table *ctl + const struct ctl_table *ctl ,int write, void *buffer, size_t *lenp, loff_t *ppos); @r2@ identifier func, ctl, write, buffer, lenp, ppos; @@ int func( - struct ctl_table *ctl + const struct ctl_table *ctl ,int write, void *buffer, size_t *lenp, loff_t *ppos) { ... } @r3@ identifier func; @@ int func( - struct ctl_table * + const struct ctl_table * ,int , void *, size_t *, loff_t *); @r4@ identifier func, ctl; @@ int func( - struct ctl_table *ctl + const struct ctl_table *ctl ,int , void *, size_t *, loff_t *); @r5@ identifier func, write, buffer, lenp, ppos; @@ int func( - struct ctl_table * + const struct ctl_table * ,int write, void *buffer, size_t *lenp, loff_t *ppos); ``` * Code formatting was adjusted in xfs_sysctl.c to comply with code conventions. The xfs_stats_clear_proc_handler, xfs_panic_mask_proc_handler and xfs_deprecated_dointvec_minmax where adjusted. * The ctl_table argument in proc_watchdog_common was const qualified. This is called from a proc_handler itself and is calling back into another proc_handler, making it necessary to change it as part of the proc_handler migration. Co-developed-by: Thomas Weißschuh Signed-off-by: Thomas Weißschuh Co-developed-by: Joel Granados Signed-off-by: Joel Granados

ndisc: Remove unused ndisc_ifinfo_sysctl_strategy() declaration

2023-08-07T07:53:55+00:00

Commit f8572d8f2a2b ("sysctl net: Remove unused binary sysctl code") left behind this declaration. Signed-off-by: Yue Haibing Reviewed-by: David Ahern Signed-off-by: David S. Miller

neighbour: switch to standard rcu, instead of rcu_bh

2023-03-22T04:32:18+00:00

rcu_bh is no longer a win, especially for objects freed with standard call_rcu(). Switch neighbour code to no longer disable BH when not necessary. Signed-off-by: Eric Dumazet Signed-off-by: Jakub Kicinski

ipv6: icmp6: add drop reason support to ndisc_rcv()

2023-02-14T03:55:32+00:00

Creates three new drop reasons: SKB_DROP_REASON_IPV6_NDISC_FRAG: invalid frag (suppress_frag_ndisc). SKB_DROP_REASON_IPV6_NDISC_HOP_LIMIT: invalid hop limit. SKB_DROP_REASON_IPV6_NDISC_BAD_CODE: invalid NDISC icmp6 code. Signed-off-by: Eric Dumazet Reviewed-by: David Ahern Signed-off-by: Jakub Kicinski

Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net

2022-03-03T19:55:12+00:00

net/batman-adv/hard-interface.c commit 690bb6fb64f5 ("batman-adv: Request iflink once in batadv-on-batadv check") commit 6ee3c393eeb7 ("batman-adv: Demote batadv-on-batadv skip error message") https://lore.kernel.org/all/20220302163049.101957-1-sw@simonwunderlich.de/ net/smc/af_smc.c commit 4d08b7b57ece ("net/smc: Fix cleanup when register ULP fails") commit 462791bbfa35 ("net/smc: add sysctl interface for SMC") https://lore.kernel.org/all/20220302112209.355def40@canb.auug.org.au/ Signed-off-by: Jakub Kicinski

ipv6: fix skb drops in igmp6_event_query() and igmp6_event_report()

2022-03-03T17:47:06+00:00

While investigating on why a synchronize_net() has been added recently in ipv6_mc_down(), I found that igmp6_event_query() and igmp6_event_report() might drop skbs in some cases. Discussion about removing synchronize_net() from ipv6_mc_down() will happen in a different thread. Fixes: f185de28d9ae ("mld: add new workqueues for process mld events") Signed-off-by: Eric Dumazet Cc: Taehee Yoo Cc: Cong Wang Cc: David Ahern Link: https://lore.kernel.org/r/20220303173728.937869-1-eric.dumazet@gmail.com Signed-off-by: Jakub Kicinski

ipv6: separate ndisc_ns_create() from ndisc_send_ns()

2022-02-21T12:13:45+00:00

This patch separate NS message allocation steps from ndisc_send_ns(), so it could be used in other places, like bonding, to allocate and send IPv6 NS message. Also export ndisc_send_skb() and ndisc_ns_create() for later bonding usage. Signed-off-by: Hangbin Liu Signed-off-by: David S. Miller

neigh: introduce neigh_confirm() helper function

2021-11-23T11:51:37+00:00

Add neigh_confirm() for the confirmed member in struct neighbour, it can be called as an independent unit by other functions. Signed-off-by: Yajun Deng Reviewed-by: Eric Dumazet Signed-off-by: David S. Miller

ipv6: constify dev_addr passing

2021-10-13T16:40:46+00:00

In preparation for netdev->dev_addr being constant make all relevant arguments in ndisc constant. Signed-off-by: Jakub Kicinski