In both sja1105_rcv() and sja1110_rcv(), we may have precise source port information coming from parallel hardware mechanisms, in addition to the tag_8021q header. Only sja1105_rcv() has extra logic to not overwrite that precise info with what's present in the VLAN tag. This is because sja1110_rcv() gets by, by having a reversed set of checks when assigning skb->dev. When the source port is imprecise (vbid >=1), source_port and switch_id will be set to zeroes by dsa_8021q_rcv(), which might be problematic. But by checking for vbid >= 1 first, sja1110_rcv() fends that off. We would like to make more code common between sja1105_rcv() and sja1110_rcv(), and for that, we need to make sure that sja1110_rcv() also goes through the precise source port preservation logic. Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com> Signed-off-by: Pawel Dembicki <paweldembicki@gmail.com> Reviewed-by: Vladimir Oltean <olteanv@gmail.com> Tested-by: Vladimir Oltean <olteanv@gmail.com> Link: https://patch.msgid.link/20240713211620.1125910-4-paweldembicki@gmail.com Signed-off-by: Jakub Kicinski <kuba@kernel.org> |
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|---|---|---|
| Documentation | ||
| LICENSES | ||
| arch | ||
| block | ||
| certs | ||
| crypto | ||
| drivers | ||
| fs | ||
| include | ||
| init | ||
| io_uring | ||
| ipc | ||
| kernel | ||
| lib | ||
| mm | ||
| net | ||
| rust | ||
| samples | ||
| scripts | ||
| security | ||
| sound | ||
| tools | ||
| usr | ||
| virt | ||
| .clang-format | ||
| .cocciconfig | ||
| .editorconfig | ||
| .get_maintainer.ignore | ||
| .gitattributes | ||
| .gitignore | ||
| .mailmap | ||
| .rustfmt.toml | ||
| COPYING | ||
| CREDITS | ||
| Kbuild | ||
| Kconfig | ||
| MAINTAINERS | ||
| Makefile | ||
| README | ||
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 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.