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Stanislav Fomichev d2ccd0560d net: switch to netif_disable_lro in inetdev_init
Cosmin reports the following deadlock:
dump_stack_lvl+0x62/0x90
print_deadlock_bug+0x274/0x3b0
__lock_acquire+0x1229/0x2470
lock_acquire+0xb7/0x2b0
__mutex_lock+0xa6/0xd20
dev_disable_lro+0x20/0x80
inetdev_init+0x12f/0x1f0
inetdev_event+0x48b/0x870
notifier_call_chain+0x38/0xf0
netif_change_net_namespace+0x72e/0x9f0
do_setlink.isra.0+0xd5/0x1220
rtnl_newlink+0x7ea/0xb50
rtnetlink_rcv_msg+0x459/0x5e0
netlink_rcv_skb+0x54/0x100
netlink_unicast+0x193/0x270
netlink_sendmsg+0x204/0x450

Switch to netif_disable_lro which assumes the caller holds the instance
lock. inetdev_init is called for blackhole device (which sw device and
doesn't grab instance lock) and from REGISTER/UNREGISTER notifiers.
We already hold the instance lock for REGISTER notifier during
netns change and we'll soon hold the lock during other paths.

Reviewed-by: Jakub Kicinski <kuba@kernel.org>
Reported-by: Cosmin Ratiu <cratiu@nvidia.com>
Fixes: ad7c7b2172 ("net: hold netdev instance lock during sysfs operations")
Signed-off-by: Stanislav Fomichev <sdf@fomichev.me>
Link: https://patch.msgid.link/20250401163452.622454-2-sdf@fomichev.me
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-04-03 15:32:08 -07:00
arch Driver core updates for 6.15-rc1 2025-04-01 11:02:03 -07:00
block for-6.15/block-20250322 2025-03-26 18:08:55 -07:00
certs sign-file,extract-cert: use pkcs11 provider for OPENSSL MAJOR >= 3 2024-09-20 19:52:48 +03:00
crypto This update includes the following changes: 2025-03-29 10:01:55 -07:00
Documentation iommufd 6.15 merge window pull 2025-04-01 18:03:46 -07:00
drivers net: airoha: Validate egress gdm port in airoha_ppe_foe_entry_prepare() 2025-04-03 15:18:16 -07:00
fs Driver core updates for 6.15-rc1 2025-04-01 11:02:03 -07:00
include Rather tiny PR, mostly so that we can get into our trees your fix 2025-04-01 20:00:51 -07:00
init [ Merge note: this pull request depends on you having merged 2025-03-24 22:06:11 -07:00
io_uring for-6.15/io_uring-reg-vec-20250327 2025-03-28 15:07:04 -07:00
ipc treewide: const qualify ctl_tables where applicable 2025-01-28 13:48:37 +01:00
kernel Driver core updates for 6.15-rc1 2025-04-01 11:02:03 -07:00
lib iommufd 6.15 merge window pull 2025-04-01 18:03:46 -07:00
LICENSES LICENSES: add 0BSD license text 2024-09-01 20:43:24 -07:00
mm VFIO updates for v6.15-rc1 2025-04-01 19:35:19 -07:00
net net: switch to netif_disable_lro in inetdev_init 2025-04-03 15:32:08 -07:00
rust Char/Misc/IIO driver updates for 6.15-rc1 2025-04-01 11:26:08 -07:00
samples Char/Misc/IIO driver updates for 6.15-rc1 2025-04-01 11:26:08 -07:00
scripts Char/Misc/IIO driver updates for 6.15-rc1 2025-04-01 11:26:08 -07:00
security Driver core updates for 6.15-rc1 2025-04-01 11:02:03 -07:00
sound virtio: features, fixes, cleanups 2025-04-01 18:52:54 -07:00
tools net/selftests: Add loopback link local route for self-connect 2025-04-03 15:08:31 -07:00
usr kbuild: hdrcheck: fix cross build with clang 2025-03-05 04:06:45 +09:00
virt ARM: 2025-03-25 14:22:07 -07:00
.clang-format clang-format: Update with v6.11-rc1's for_each macro list 2024-08-02 13:20:31 +02:00
.clippy.toml rust: give Clippy the minimum supported Rust version 2025-01-10 00:17:25 +01:00
.cocciconfig
.editorconfig .editorconfig: remove trim_trailing_whitespace option 2024-06-13 16:47:52 +02:00
.get_maintainer.ignore MAINTAINERS: Retire Ralf Baechle 2024-11-12 15:48:59 +01:00
.gitattributes .gitattributes: set diff driver for Rust source code files 2023-05-31 17:48:25 +02:00
.gitignore rust: use host dylib naming convention to support macOS 2025-01-10 01:01:24 +01:00
.mailmap - The 7 patch series "powerpc/crash: use generic crashkernel 2025-04-01 10:06:52 -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 MAINTAINERS: update Open vSwitch maintainers 2025-04-02 16:25:10 -07:00
Kbuild drm: ensure drm headers are self-contained and pass kernel-doc 2025-02-12 10:44:43 +02:00
Kconfig io_uring: Rename KConfig to Kconfig 2025-02-19 14:53:27 -07:00
MAINTAINERS MAINTAINERS: Update Loic Poulain's email address 2025-04-03 15:13:19 -07:00
Makefile [ Merge note: this pull request depends on you having merged 2025-03-24 22:06:11 -07:00
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.