kernel/net/ipv4/af_inet.c, branch master

ipv6: move the disable_ipv6_mod knob to core code

2026-03-12T00:53:37Z

From: Jakub Kicinski Make sure disable_ipv6_mod itself is not part of the IPv6 module, in case core code wants to refer to it. We will remove support for IPv6=m soon, this change helps make fixes we commit before that less messy. Link: https://patch.msgid.link/20260307-net-nd_tbl_fixes-v4-1-e2677e85628c@suse.com Signed-off-by: Jakub Kicinski

Convert more 'alloc_obj' cases to default GFP_KERNEL arguments

2026-02-22T04:03:00Z

This converts some of the visually simpler cases that have been split over multiple lines. I only did the ones that are easy to verify the resulting diff by having just that final GFP_KERNEL argument on the next line. Somebody should probably do a proper coccinelle script for this, but for me the trivial script actually resulted in an assertion failure in the middle of the script. I probably had made it a bit _too_ trivial. So after fighting that far a while I decided to just do some of the syntactically simpler cases with variations of the previous 'sed' scripts. The more syntactically complex multi-line cases would mostly really want whitespace cleanup anyway. Signed-off-by: Linus Torvalds

treewide: Replace kmalloc with kmalloc_obj for non-scalar types

2026-02-21T09:02:28Z

This is the result of running the Coccinelle script from scripts/coccinelle/api/kmalloc_objs.cocci. The script is designed to avoid scalar types (which need careful case-by-case checking), and instead replace kmalloc-family calls that allocate struct or union object instances: Single allocations: kmalloc(sizeof(TYPE), ...) are replaced with: kmalloc_obj(TYPE, ...) Array allocations: kmalloc_array(COUNT, sizeof(TYPE), ...) are replaced with: kmalloc_objs(TYPE, COUNT, ...) Flex array allocations: kmalloc(struct_size(PTR, FAM, COUNT), ...) are replaced with: kmalloc_flex(*PTR, FAM, COUNT, ...) (where TYPE may also be *VAR) The resulting allocations no longer return "void *", instead returning "TYPE *". Signed-off-by: Kees Cook

net: factor-out _sk_charge() helper

2025-11-25T03:49:40Z

Move out of __inet_accept() the code dealing charging newly accepted socket to memcg. MPTCP will soon use it to on a per subflow basis, in different contexts. No functional changes intended. Signed-off-by: Paolo Abeni Acked-by: Geliang Tang Acked-by: Matthieu Baerts (NGI0) Signed-off-by: Matthieu Baerts (NGI0) Link: https://patch.msgid.link/20251121-net-next-mptcp-memcg-backlog-imp-v1-1-1f34b6c1e0b1@kernel.org Signed-off-by: Jakub Kicinski

bpf: Convert cgroup sockaddr filters to use sockaddr_unsized consistently

2025-11-05T03:10:33Z

Update BPF cgroup sockaddr filtering infrastructure to use sockaddr_unsized consistently throughout the call chain, removing redundant explicit casts from callers. No binary changes expected. Signed-off-by: Kees Cook Link: https://patch.msgid.link/20251104002617.2752303-6-kees@kernel.org Signed-off-by: Jakub Kicinski

net: Convert proto callbacks from sockaddr to sockaddr_unsized

2025-11-05T03:10:33Z

Convert struct proto pre_connect(), connect(), bind(), and bind_add() callback function prototypes from struct sockaddr to struct sockaddr_unsized. This does not change per-implementation use of sockaddr for passing around an arbitrarily sized sockaddr struct. Those will be addressed in future patches. Additionally removes the no longer referenced struct sockaddr from include/net/inet_common.h. No binary changes expected. Signed-off-by: Kees Cook Link: https://patch.msgid.link/20251104002617.2752303-5-kees@kernel.org Signed-off-by: Jakub Kicinski

net: Convert proto_ops connect() callbacks to use sockaddr_unsized

2025-11-05T03:10:32Z

Update all struct proto_ops connect() callback function prototypes from "struct sockaddr *" to "struct sockaddr_unsized *" to avoid lying to the compiler about object sizes. Calls into struct proto handlers gain casts that will be removed in the struct proto conversion patch. No binary changes expected. Signed-off-by: Kees Cook Link: https://patch.msgid.link/20251104002617.2752303-3-kees@kernel.org Signed-off-by: Jakub Kicinski

net: Convert proto_ops bind() callbacks to use sockaddr_unsized

2025-11-05T03:10:32Z

Update all struct proto_ops bind() callback function prototypes from "struct sockaddr *" to "struct sockaddr_unsized *" to avoid lying to the compiler about object sizes. Calls into struct proto handlers gain casts that will be removed in the struct proto conversion patch. No binary changes expected. Signed-off-by: Kees Cook Link: https://patch.msgid.link/20251104002617.2752303-2-kees@kernel.org Signed-off-by: Jakub Kicinski

sctp: Use sctp_clone_sock() in sctp_do_peeloff().

2025-10-28T01:04:58Z

sctp_do_peeloff() calls sock_create() to allocate and initialise struct sock, inet_sock, and sctp_sock, but later sctp_copy_sock() and sctp_sock_migrate() overwrite most fields. What sctp_do_peeloff() does is more like accept(). Let's use sock_create_lite() and sctp_clone_sock(). Signed-off-by: Kuniyuki Iwashima Acked-by: Xin Long Link: https://patch.msgid.link/20251023231751.4168390-8-kuniyu@google.com Signed-off-by: Jakub Kicinski

sctp: Use sk_clone() in sctp_accept().

2025-10-28T01:04:58Z

sctp_accept() calls sctp_v[46]_create_accept_sk() to allocate a new socket and calls sctp_sock_migrate() to copy fields from the parent socket to the new socket. sctp_v4_create_accept_sk() allocates sk by sk_alloc(), initialises it by sock_init_data(), and copy a bunch of fields from the parent socekt by sctp_copy_sock(). sctp_sock_migrate() calls sctp_copy_descendant() to copy most fields in sctp_sock from the parent socket by memcpy(). These can be simply replaced by sk_clone(). Let's consolidate sctp_v[46]_create_accept_sk() to sctp_clone_sock() with sk_clone(). We will reuse sctp_clone_sock() for sctp_do_peeloff() and then remove sctp_copy_descendant(). Note that sock_reset_flag(newsk, SOCK_ZAPPED) is not copied to sctp_clone_sock() as sctp does not use SOCK_ZAPPED at all. Signed-off-by: Kuniyuki Iwashima Acked-by: Xin Long Link: https://patch.msgid.link/20251023231751.4168390-6-kuniyu@google.com Signed-off-by: Jakub Kicinski