kernel/git/next/linux-next.git/Documentation/networking, branch master

net: run netdev work under the ops-compat lock

2026-09-10T07:47:50+00:00

netdev_work_proc() took rtnl_lock() for the whole batch, forcing even ops-locked drivers onto rtnl just to run their rx_mode / ndo_work callbacks. Take the per-device ops-compat lock instead: the instance lock for ops-locked drivers, rtnl_lock for the rest. That's what the callbacks already assert (e.g. netif_rx_mode_run() asserts netdev_assert_locked_ops_compat()), and non-ops-locked work such as vlan ndo_work keeps rtnl, since its compat lock resolves to rtnl anyway. Without this adding more uses of ndo_work, for cases which don't need rtnl_lock feels like a step back. We can drop the comment about the extra ref now, with the relocking it's a necessity. Signed-off-by: Jakub Kicinski Link: https://patch.msgid.link/20260904180058.3803849-1-kuba@kernel.org Signed-off-by: Paolo Abeni

docs: networking: page_pool: Use page_pool_put_netmem_bulk() in the kernel-doc directive

2026-09-10T01:23:17+00:00

page_pool.rst asks net/core/page_pool.c for page_pool_put_page_bulk(). Commit 024bfd2e9d80 ("page_pool: make page_pool_put_page_bulk() handle array of netmems") renamed the function to page_pool_put_netmem_bulk(). Since then the directive finds nothing and the bulk release helper is missing from the rendered page. Use the current name. Signed-off-by: Karl Mehltretter Acked-by: Randy Dunlap Link: https://patch.msgid.link/20260905084711.40105-1-kmehltretter@gmail.com Signed-off-by: Jakub Kicinski

docs: netconsole: document local_ip auto-selection

2026-09-10T01:09:53+00:00

An unset local_ip is auto-populated from the egress interface at enable time, but any value the user writes, including 0.0.0.0, is used as-is. This deviates from the behavior prior to "netconsole: use the address family instead of the ipv6 flag", which interpreted 0.0.0.0 as unset. Document this so the distinction between "unset" and "set to 0.0.0.0" is clear. Reviewed-by: Breno Leitao Signed-off-by: Gustavo Luiz Duarte Link: https://patch.msgid.link/20260903-netcons_ipv6-v4-7-bdd183c844d3@gmail.com Signed-off-by: Jakub Kicinski

docs: mctp: Fix the struct mctp_sk_key name

2026-09-10T01:01:54+00:00

struct sk_key does not exist; the type is struct mctp_sk_key. Use it. Signed-off-by: Karl Mehltretter Reviewed-by: Randy Dunlap Link: https://patch.msgid.link/20260905095150.42180-1-kmehltretter@gmail.com Signed-off-by: Jakub Kicinski

docs: mctp: Fix the struct net_device name

2026-09-10T01:01:53+00:00

struct netdevice does not exist; the type is struct net_device. Use it. Signed-off-by: Karl Mehltretter Reviewed-by: Randy Dunlap Link: https://patch.msgid.link/20260905095116.42147-1-kmehltretter@gmail.com Signed-off-by: Jakub Kicinski

Documentation/eth/intel: fix repeated words in comments

2026-09-10T00:50:17+00:00

Drop repeated words reported by checkpatch.pl. Only touches documentation text. Signed-off-by: Hemanth Selam Acked-by: Randy Dunlap Reviewed-by: Tony Nguyen Link: https://patch.msgid.link/20260907095446.27290-5-hemanth.selam@gmail.com Signed-off-by: Jakub Kicinski

docs: phonet: Fix the struct sockaddr_pn name in the example

2026-09-08T23:42:21+00:00

struct sockaddr_spn does not exist; the name is struct sockaddr_pn. Use struct sockaddr_pn. Signed-off-by: Karl Mehltretter Acked-by: Randy Dunlap Link: https://patch.msgid.link/20260905104123.43511-1-kmehltretter@gmail.com Signed-off-by: Jakub Kicinski

Documentation: netvsc: Remove stale "not yet supported" XDP_REDIRECT note

2026-09-05T01:51:39+00:00

netvsc_run_xdp() in drivers/net/hyperv/netvsc_bpf.c has handled XDP_REDIRECT since commit 1cb9d3b6185b ("hv_netvsc: Add support for XDP_REDIRECT"), and netvsc_drv.c advertises NETDEV_XDP_ACT_REDIRECT in xdp_features. Remove the stale note. Link: https://patch.msgid.link/20260831200357.45390-1-chrismelnu@gmail.com Signed-off-by: Christian Melendez Signed-off-by: Jakub Kicinski

net: Replace %pK output with 0

2026-09-03T01:38:16+00:00

Commit 71338aa7d050c ("net: convert %p usage to %pK") which is from 2011 and changed the %p annotation for pointer to %pK. Back then the default behaviour for %p was to print the pointer. The %pK modifier was introduced to able to control the behaviour of specific pointer values without changing the behaviour of %p for everyone. It was dedicated to avoid leaking pointers via /proc. There was also the idea to remove the check from formatting the string and move to the open callback with some helpers but this did not happen. Things changed over time. The default behaviour for %p is now to print a hash pointer which does not leak the address but allows to correlate if two pointers are equal. The policy on %p is to not introduce new ones. This is somehow in between since it already exists. The pointer are usually socket pointers and I don't see any value in exposing them. Therefore I am following the recommendation of removing them. Since their usage in /proc/ can be considered ABI I replace the pointer with a 0. Replace the %pK annotation with 0 value. Correct the spacing for the cases where pointer is at the beginning. Reviewed-by: Kees Cook Signed-off-by: Sebastian Andrzej Siewior Link: https://patch.msgid.link/20260901160345.eeknHmY2@linutronix.de Signed-off-by: Jakub Kicinski

net: stmmac: Remove ARP offload code

2026-09-01T13:14:43+00:00

dwmac can do ARP offloading, where the HW replies to incoming ARP requests. This requires multiple steps to work well : - Program the local IP address in a dedicated register - Enable ARP offloading This is halfway implemented in stmmac, as it's only ever used by selftests, and these selftests are failing on at least 2 platforms : stm32mp1, and jh7110. There have been some attempts in the past to support this feature, but this never made it upstream. Let's just remove the test and that code, until someone actually wants that to work. We should likely have a proper API for that so that drivers can use it. Let's also not mention ARP offload in the stmmac documentation. Leave the defines in place and the capability detection, this doesn't hurt and gives some information about how the IP is synthesized. Signed-off-by: Maxime Chevallier Reviewed-by: Nicolai Buchwitz Link: https://patch.msgid.link/20260831071351.354255-1-maxime.chevallier@bootlin.com Signed-off-by: Paolo Abeni