From 281140a0a2ce4febf2c0ce5d29d0e7d961a826b1 Mon Sep 17 00:00:00 2001 From: Tobias Waldekranz Date: Wed, 21 Apr 2021 14:04:53 +0200 Subject: [PATCH] net: dsa: mv88e6xxx: Fix off-by-one in VTU devlink region size 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 Reviewed-by: Andrew Lunn Signed-off-by: David S. Miller --- drivers/net/dsa/mv88e6xxx/devlink.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) --- a/drivers/net/dsa/mv88e6xxx/devlink.c +++ b/drivers/net/dsa/mv88e6xxx/devlink.c @@ -678,7 +678,7 @@ static int mv88e6xxx_setup_devlink_regio 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; }