From c6593510e0f83d3835e8f71616b64d5f46455993 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: ebc5a0e6caad ("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(-) diff --git a/drivers/net/dsa/mv88e6xxx/devlink.c b/drivers/net/dsa/mv88e6xxx/devlink.c index 21953d6d484c5..ada7a38d4d313 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; } -- 2.39.5