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Tristram Ha 7f0bc8f2c8 net: dsa: microchip: Do not execute PTP driver code for unsupported switches
[ Upstream commit 6ed3472173 ]

The PTP driver code only works for certain KSZ switches like KSZ9477,
KSZ9567, LAN937X and their varieties.  This code is enabled by kernel
configuration CONFIG_NET_DSA_MICROCHIP_KSZ_PTP.  As the DSA driver is
common to work with all KSZ switches this PTP code is not appropriate
for other unsupported switches.  The ptp_capable indication is added to
the chip data structure to signal whether to execute those code.

Signed-off-by: Tristram Ha <tristram.ha@microchip.com>
Link: https://patch.msgid.link/20241218020240.70601-1-Tristram.Ha@microchip.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Stable-dep-of: 0f80e21bf6 ("net: dsa: microchip: Free previously initialized ports on init failures")
Signed-off-by: Sasha Levin <sashal@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
History 2025-12-07 06:25:03 +09:00
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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.