9653e613e0
Antoine Tenart says: ==================== net: introduce a function to check if a netdev name is in use This was initially part of an RFC series[1] but has value on its own; hence the standalone report. (It will also help in not having a series too large). From patch 1: """ __dev_get_by_name is currently used to either retrieve a net device reference using its name or to check if a name is already used by a registered net device (per ns). In the later case there is no need to return a reference to a net device. Introduce a new helper, netdev_name_in_use, to check if a name is currently used by a registered net device without leaking a reference the corresponding net device. This helper uses netdev_name_node_lookup instead of __dev_get_by_name as we don't need the extra logic retrieving a reference to the corresponding net device. """ Two uses[2] of __dev_get_by_name weren't converted to this new function, as they are really looking for a net device, not only checking if a net device name is in use. While checking one or the other currently has the same result, that might change if the initial RFC series moves forward. I'll convert them later depending on the outcome of the initial series. Thanks, Antoine [1] https://lore.kernel.org/all/20210928125500.167943-1-atenart@kernel.org/ [2] drivers/net/Space.c:130 & drivers/nvme/host/tcp.c:2550 ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
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 Restructured Text 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.