From: Tobias Waldekranz tobias@waldekranz.com
[ Upstream commit 281140a0a2ce4febf2c0ce5d29d0e7d961a826b1 ]
In the unlikely event of the VTU being loaded to the brim with 4k entries, the last one was placed in the buffer, but the size reported to devlink was off-by-one. Make sure that the final entry is available to the caller.
Fixes: ca4d632aef03 ("net: dsa: mv88e6xxx: Export VTU as devlink region") Signed-off-by: Tobias Waldekranz tobias@waldekranz.com Reviewed-by: Andrew Lunn andrew@lunn.ch Signed-off-by: David S. Miller davem@davemloft.net Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/net/dsa/mv88e6xxx/devlink.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/net/dsa/mv88e6xxx/devlink.c b/drivers/net/dsa/mv88e6xxx/devlink.c index 21953d6d484c..ada7a38d4d31 100644 --- a/drivers/net/dsa/mv88e6xxx/devlink.c +++ b/drivers/net/dsa/mv88e6xxx/devlink.c @@ -678,7 +678,7 @@ static int mv88e6xxx_setup_devlink_regions_global(struct dsa_switch *ds, sizeof(struct mv88e6xxx_devlink_atu_entry); break; case MV88E6XXX_REGION_VTU: - size = mv88e6xxx_max_vid(chip) * + size = (mv88e6xxx_max_vid(chip) + 1) * sizeof(struct mv88e6xxx_devlink_vtu_entry); break; }