net: dsa: mv88e6xxx: protect FID registers access

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Only switch families with 4096 address databases have dedicated FID
registers for ATU and VTU operations.

Factorize the access to the GLOBAL_ATU_FID register and introduce a
mv88e6xxx_has_fid_reg() helper function to protect the access to
GLOBAL_ATU_FID and GLOBAL_VTU_FID.

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

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Vivien Didelot 2016-03-31 16:53:42 -04:00 • committed by David S. Miller

parent 2e7bd5ef98

commit b426e5f7fe

1 changed files with 23 additions and 19 deletions

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drivers/net/dsa/mv88e6xxx.c

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