b8871c6734
[ Upstream commit d95a56207c078e2019cf6659d890ec1e987e8420 ]
Commit 561d8352818f ("bridge: use ndo_siocdevprivate") changed the
source and destination arguments of copy_{to,from}_user in bridge's
old_deviceless() from args[1] to uarg breaking SIOC{G,S}IFBR ioctls.
Commit cbd7ad29a507 ("net: bridge: fix ioctl old_deviceless bridge
argument") fixed only BRCTL_{ADD,DEL}_BRIDGES commands leaving
BRCTL_GET_BRIDGES one untouched.
The fixes BRCTL_GET_BRIDGES as well and has been tested with busybox's
brctl.
Example of broken brctl:
$ brctl show
bridge name bridge id STP enabled interfaces
brctl: can't get bridge name for index 0: No such device or address
Example of fixed brctl:
$ brctl show
bridge name bridge id STP enabled interfaces
br0 8000.000000000000 no
Fixes: 561d8352818f ("bridge: use ndo_siocdevprivate")
Signed-off-by: Remi Pommarel <repk@triplefau.lt>
Reviewed-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Nikolay Aleksandrov <nikolay@nvidia.com>
Link: https://lore.kernel.org/all/20211223153139.7661-2-repk@triplefau.lt/
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
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.