net: dsa: add dsa_to_port helper

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The dsa_port structure is part of DSA core data and must only be updated
by the later. It is OK and sometimes necessary for the DSA drivers to
access this data, but this has to be read only.

For that purpose, add a dsa_to_port() helper which returns a const
pointer to a dsa_port structure which must be used by DSA drivers from
now on instead of digging into ds->ports[] themselves.

Signed-off-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

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Vivien Didelot 2017-10-16 11:12:19 -04:00 • committed by David S. Miller

parent f8b8b1cd5a

commit c8652c83bc

7 changed files with 17 additions and 12 deletions

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include/net/dsa.h

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