mainlining shenanigans
fe95784fb1
&cpu_db->fdbs and &cpu_db->mdbs may be uninitialized lists during some
call paths of felix_set_tag_protocol().
There was an attempt to avoid calling dsa_port_walk_fdbs() during setup
by using a "bool change" in the felix driver, but this doesn't work when
the tagging protocol is defined in the device tree, and a change is
triggered by DSA at pseudo-runtime:
dsa_tree_setup_switches
-> dsa_switch_setup
-> dsa_switch_setup_tag_protocol
-> ds->ops->change_tag_protocol
dsa_tree_setup_ports
-> dsa_port_setup
-> &dp->fdbs and &db->mdbs only get initialized here
So it seems like the only way to fix this is to move the initialization
of these lists earlier.
dsa_port_touch() is called from dsa_switch_touch_ports() which is called
from dsa_switch_parse_of(), and this runs completely before
dsa_tree_setup(). Similarly, dsa_switch_release_ports() runs after
dsa_tree_teardown().
Fixes:
|
||
|---|---|---|
| arch | ||
| block | ||
| certs | ||
| crypto | ||
| Documentation | ||
| drivers | ||
| fs | ||
| include | ||
| init | ||
| ipc | ||
| kernel | ||
| lib | ||
| LICENSES | ||
| mm | ||
| net | ||
| samples | ||
| scripts | ||
| security | ||
| sound | ||
| tools | ||
| usr | ||
| virt | ||
| .clang-format | ||
| .cocciconfig | ||
| .get_maintainer.ignore | ||
| .gitattributes | ||
| .gitignore | ||
| .mailmap | ||
| COPYING | ||
| CREDITS | ||
| Kbuild | ||
| Kconfig | ||
| MAINTAINERS | ||
| Makefile | ||
| README | ||
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.