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net: dsa: microchip: split ksz_get_tag_protocol()

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All the switch families use a common function to implement
.get_tag_protocol(). This function then returns the relevant protocol
depending on the chip ID.

Make the protocol to dsa_switch_ops association a little bit more
obvious by having separate implementations.

Change made by manually checking which chip id has which dsa_switch_ops
assigned to it, then filtering the common ksz_get_tag_protocol() for
just those chip IDs pertaining to it.

As an important benefit, we no longer have that weird-looking
DSA_TAG_PROTO_NONE fallback which was never actually returned.

Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Signed-off-by: Bastien Curutchet (Schneider Electric) <bastien.curutchet@bootlin.com>
Link: https://patch.msgid.link/20260505-clean-ksz-driver-v1-8-05d70fa42461@bootlin.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
This commit is contained in:
Vladimir Oltean 2026-05-05 16:25:08 +02:00 • committed by Jakub Kicinski
commit af96c2f08d
5 changed files with 52 additions and 39 deletions
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