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net: dsa: mv88e6xxx: Add missing mask of ATU occupancy register

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Only the bottom 12 bits contain the ATU bin occupancy statistics. The
upper bits need masking off.

Fixes: e0c69ca7df ("net: dsa: mv88e6xxx: Add ATU occupancy via devlink resources")
Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Andrew Lunn 2020-03-11 21:02:31 +01:00 committed by David S. Miller
parent 06669ea346
commit 012fc74517
1 changed files with 2 additions and 0 deletions
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2
drivers/net/dsa/mv88e6xxx/chip.c
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@ -2769,6 +2769,8 @@ static u64 mv88e6xxx_devlink_atu_bin_get(struct mv88e6xxx_chip *chip,
goto unlock;
}
occupancy &= MV88E6XXX_G2_ATU_STATS_MASK;
unlock:
mv88e6xxx_reg_unlock(chip);