linux-kernel - [PATCH v3 0/2] sysctl: treewide: prepare ctl_table_root for ctl

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Message-Id: <20240315-sysctl-const-ownership-v3-0-b86680eae02e@weissschuh.net>
Date: Fri, 15 Mar 2024 19:11:29 +0100
From: Thomas Weißschuh <linux@...ssschuh.net>
To: Luis Chamberlain <mcgrof@...nel.org>, Kees Cook <keescook@...omium.org>, 
 Joel Granados <j.granados@...sung.com>, 
 "David S. Miller" <davem@...emloft.net>, Eric Dumazet <edumazet@...gle.com>, 
 Jakub Kicinski <kuba@...nel.org>, Paolo Abeni <pabeni@...hat.com>
Cc: linux-kernel@...r.kernel.org, linux-fsdevel@...r.kernel.org, 
 netdev@...r.kernel.org, 
 Thomas Weißschuh <linux@...ssschuh.net>
Subject: [PATCH v3 0/2] sysctl: treewide: prepare ctl_table_root for
 ctl_table constification

The two patches were previously submitted on their own.
In commit f9436a5d0497
("sysctl: allow to change limits for posix messages queues")
a code dependency was introduced between the two callbacks.
This code dependency results in a dependency between the two patches, so
now they are submitted as a series.

The series is meant to be merged via the sysctl tree.

There is an upcoming series that will introduce a new implementation of
set_ownership and .permissions which would need to be adapted [0].

These changes ere originally part of the sysctl-const series [1].
To slim down that series and reduce the message load on other
maintainers to a minimum, the patches are split out.

[0] https://lore.kernel.org/lkml/20240222160915.315255-1-aleksandr.mikhalitsyn@canonical.com/
[1] https://lore.kernel.org/lkml/20231204-const-sysctl-v2-2-7a5060b11447@weissschuh.net/

Signed-off-by: Thomas Weißschuh <linux@...ssschuh.net>
---
Changes in v3:
- Drop now spurious argument in fs/proc/proc_sysctl.c
- Rebase on next-20240315
- Incorporate permissions patch.
- Link to v2 (ownership): https://lore.kernel.org/r/20240223-sysctl-const-ownership-v2-1-f9ba1795aaf2@weissschuh.net
- Link to v1 (permissions): https://lore.kernel.org/r/20231226-sysctl-const-permissions-v1-1-5cd3c91f6299@weissschuh.net

Changes in v2:
- Rework commit message
- Mention potential conflict with upcoming per-namespace kernel.pid_max
  sysctl
- Delete unused parameter table
- Link to v1: https://lore.kernel.org/r/20231226-sysctl-const-ownership-v1-1-d78fdd744ba1@weissschuh.net

---
Thomas Weißschuh (2):
      sysctl: treewide: drop unused argument ctl_table_root::set_ownership(table)
      sysctl: treewide: constify argument ctl_table_root::permissions(table)

 fs/proc/proc_sysctl.c  | 2 +-
 include/linux/sysctl.h | 3 +--
 ipc/ipc_sysctl.c       | 5 ++---
 ipc/mq_sysctl.c        | 5 ++---
 kernel/ucount.c        | 2 +-
 net/sysctl_net.c       | 3 +--
 6 files changed, 8 insertions(+), 12 deletions(-)
---
base-commit: a1e7655b77e3391b58ac28256789ea45b1685abb
change-id: 20231226-sysctl-const-ownership-ff75e67b4eea

Best regards,
-- 
Thomas Weißschuh <linux@...ssschuh.net>