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Paolo Abeni b666a651d0 Merge branch 'mptcp-more-fixes-for-the-in-kernel-pm'
Matthieu Baerts says:

====================
mptcp: more fixes for the in-kernel PM

Here is a new batch of fixes for the MPTCP in-kernel path-manager:

Patch 1 ensures the address ID is set to 0 when the path-manager sends
an ADD_ADDR for the address of the initial subflow. The same fix is
applied when a new subflow is created re-using this special address. A
fix for v6.0.

Patch 2 is similar, but for the case where an endpoint is removed: if
this endpoint was used for the initial address, it is important to send
a RM_ADDR with this ID set to 0, and look for existing subflows with the
ID set to 0. A fix for v6.0 as well.

Patch 3 validates the two previous patches.

Patch 4 makes the PM selecting an "active" path to send an address
notification in an ACK, instead of taking the first path in the list. A
fix for v5.11.

Patch 5 fixes skipping the establishment of a new subflow if a previous
subflow using the same pair of addresses is being closed. A fix for
v5.13.

Patch 6 resets the ID linked to the initial subflow when the linked
endpoint is re-added, possibly with a different ID. A fix for v6.0.

Patch 7 validates the three previous patches.

Patch 8 is a small fix for the MPTCP Join selftest, when being used with
older subflows not supporting all MIB counters. A fix for a commit
introduced in v6.4, but backported up to v5.10.

Patch 9 avoids the PM to try to close the initial subflow multiple
times, and increment counters while nothing happened. A fix for v5.10.

Patch 10 stops incrementing local_addr_used and add_addr_accepted
counters when dealing with the address ID 0, because these counters are
not taking into account the initial subflow, and are then not
decremented when the linked addresses are removed. A fix for v6.0.

Patch 11 validates the previous patch.

Patch 12 avoids the PM to send multiple SUB_CLOSED events for the
initial subflow. A fix for v5.12.

Patch 13 validates the previous patch.

Patch 14 stops treating the ADD_ADDR 0 as a new address, and accepts it
in order to re-create the initial subflow if it has been closed, even if
the limit for *new* addresses -- not taking into account the address of
the initial subflow -- has been reached. A fix for v5.10.

Patch 15 validates the previous patch.

Signed-off-by: Matthieu Baerts (NGI0) <matttbe@kernel.org>
---
Matthieu Baerts (NGI0) (15):
      mptcp: pm: reuse ID 0 after delete and re-add
      mptcp: pm: fix RM_ADDR ID for the initial subflow
      selftests: mptcp: join: check removing ID 0 endpoint
      mptcp: pm: send ACK on an active subflow
      mptcp: pm: skip connecting to already established sf
      mptcp: pm: reset MPC endp ID when re-added
      selftests: mptcp: join: check re-adding init endp with != id
      selftests: mptcp: join: no extra msg if no counter
      mptcp: pm: do not remove already closed subflows
      mptcp: pm: fix ID 0 endp usage after multiple re-creations
      selftests: mptcp: join: check re-re-adding ID 0 endp
      mptcp: avoid duplicated SUB_CLOSED events
      selftests: mptcp: join: validate event numbers
      mptcp: pm: ADD_ADDR 0 is not a new address
      selftests: mptcp: join: check re-re-adding ID 0 signal

 net/mptcp/pm.c                                  |   4 +-
 net/mptcp/pm_netlink.c                          |  87 ++++++++++----
 net/mptcp/protocol.c                            |   6 +
 net/mptcp/protocol.h                            |   5 +-
 tools/testing/selftests/net/mptcp/mptcp_join.sh | 153 ++++++++++++++++++++----
 tools/testing/selftests/net/mptcp/mptcp_lib.sh  |   4 +
 6 files changed, 209 insertions(+), 50 deletions(-)
---
base-commit: 3a0504d54b
change-id: 20240826-net-mptcp-more-pm-fix-ffa61a36f817

Best regards,
====================

Link: https://patch.msgid.link/20240828-net-mptcp-more-pm-fix-v2-0-7f11b283fff7@kernel.org
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2024-08-29 10:39:53 +02:00
arch Driver core fixes for 6.11-rc4 2024-08-18 10:19:49 -07:00
block block: Fix lockdep warning in blk_mq_mark_tag_wait 2024-08-15 19:25:03 -06:00
certs kbuild: use $(src) instead of $(srctree)/$(src) for source directory 2024-05-10 04:34:52 +09:00
crypto crypto: testmgr - generate power-of-2 lengths more often 2024-07-13 11:50:28 +12:00
Documentation net: drop special comment style 2024-08-23 10:21:02 +01:00
drivers Regressions: 2024-08-28 16:54:45 -07:00
fs Changes since last update: 2024-08-22 06:06:09 +08:00
include net: busy-poll: use ktime_get_ns() instead of local_clock() 2024-08-28 17:53:13 -07:00
init Rust fixes for v6.11 2024-08-16 11:24:06 -07:00
io_uring io_uring/sqpoll: annotate debug task == current with data_race() 2024-08-13 06:10:59 -06:00
ipc sysctl: treewide: constify the ctl_table argument of proc_handlers 2024-07-24 20:59:29 +02:00
kernel printk fixup for 6.11-rc5 2024-08-19 09:26:35 -07:00
lib bcachefs fixes for 6.11-rc4 2024-08-17 09:46:10 -07:00
LICENSES LICENSES: Add the copyleft-next-0.3.1 license 2022-11-08 15:44:01 +01:00
mm 16 hotfixes. All except one are for MM. 10 of these are cc:stable and 2024-08-17 19:50:16 -07:00
net mptcp: pm: ADD_ADDR 0 is not a new address 2024-08-29 10:39:50 +02:00
rust Rust fixes for v6.11 2024-08-16 11:24:06 -07:00
samples treewide: remove unnecessary <linux/version.h> inclusion 2024-08-12 18:36:44 +09:00
scripts net: drop special comment style 2024-08-23 10:21:02 +01:00
security KEYS: trusted: dcp: fix leak of blob encryption key 2024-08-15 22:01:14 +03:00
sound Kbuild fixes for v6.11 (2nd) 2024-08-23 07:43:15 +08:00
tools selftests: mptcp: join: check re-re-adding ID 0 signal 2024-08-29 10:39:50 +02:00
usr initramfs: shorten cmd_initfs in usr/Makefile 2024-07-16 01:07:52 +09:00
virt KVM: x86: Disallow read-only memslots for SEV-ES and SEV-SNP (and TDX) 2024-08-14 12:28:24 -04:00
.clang-format Docs: Move clang-format from process/ to dev-tools/ 2024-06-26 16:36:00 -06:00
.cocciconfig scripts: add Linux .cocciconfig for coccinelle 2016-07-22 12:13:39 +02:00
.editorconfig .editorconfig: remove trim_trailing_whitespace option 2024-06-13 16:47:52 +02:00
.get_maintainer.ignore Add Jeff Kirsher to .get_maintainer.ignore 2024-03-08 11:36:54 +00:00
.gitattributes .gitattributes: set diff driver for Rust source code files 2023-05-31 17:48:25 +02:00
.gitignore kbuild: add script and target to generate pacman package 2024-07-22 01:24:22 +09:00
.mailmap mailmap: update entry for David Heidelberg 2024-08-07 18:33:56 -07:00
.rustfmt.toml rust: add .rustfmt.toml 2022-09-28 09:02:20 +02:00
COPYING COPYING: state that all contributions really are covered by this file 2020-02-10 13:32:20 -08:00
CREDITS tracing: Update of MAINTAINERS and CREDITS file 2024-07-18 14:08:42 -07:00
Kbuild Kbuild updates for v6.1 2022-10-10 12:00:45 -07:00
Kconfig kbuild: ensure full rebuild when the compiler is updated 2020-05-12 13:28:33 +09:00
MAINTAINERS MAINTAINERS: Mark JME Network Driver as Odd Fixes 2024-08-22 15:23:42 +02:00
Makefile Kbuild fixes for v6.11 (2nd) 2024-08-23 07:43:15 +08:00
README README: Fix spelling 2024-03-18 03:36:32 -06:00

Linux kernel
============

There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.

In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``.  The formatted documentation can also be read online at:

    https://www.kernel.org/doc/html/latest/

There are various text files in the Documentation/ subdirectory,
several of them using the reStructuredText markup notation.

Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.