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Linux kernel source tree
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Kuniyuki Iwashima says: ==================== dev: Hold per-netns RTNL in register_netdev(). Patch 1 adds rtnl_net_lock_killable() and Patch 2 uses it in register_netdev() and converts it and unregister_netdev() to per-netns RTNL. With this and the netdev notifier series [0], ASSERT_RTNL_NET() for NETDEV_REGISTER [1] wasn't fired on a simplest QEMU setup like e1000 + x86_64_defconfig + CONFIG_DEBUG_NET_SMALL_RTNL. [0]: https://lore.kernel.org/netdev/20250104063735.36945-1-kuniyu@amazon.com/ [1]: ---8<--- diff --git a/net/core/rtnl_net_debug.c b/net/core/rtnl_net_debug.c index f406045cbd0e..c0c30929002e 100644 --- a/net/core/rtnl_net_debug.c +++ b/net/core/rtnl_net_debug.c @@ -21,7 +21,6 @@ static int rtnl_net_debug_event(struct notifier_block *nb, case NETDEV_DOWN: case NETDEV_REBOOT: case NETDEV_CHANGE: - case NETDEV_REGISTER: case NETDEV_UNREGISTER: case NETDEV_CHANGEMTU: case NETDEV_CHANGEADDR: @@ -60,19 +59,10 @@ static int rtnl_net_debug_event(struct notifier_block *nb, ASSERT_RTNL(); break; - /* Once an event fully supports RTNL_NET, move it here - * and remove "if (0)" below. - * - * case NETDEV_XXX: - * ASSERT_RTNL_NET(net); - * break; - */ - } - - /* Just to avoid unused-variable error for dev and net. */ - if (0) + case NETDEV_REGISTER: ASSERT_RTNL_NET(net); + break; + } return NOTIFY_DONE; } ---8<--- ==================== Link: https://patch.msgid.link/20250104082149.48493-1-kuniyu@amazon.com Signed-off-by: Paolo Abeni <pabeni@redhat.com> |
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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.