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428d720c7f
This should help debug mv88e6xxx issues Signed-off-by: Etienne Champetier <champetier.etienne@gmail.com>
31 lines
1.1 KiB
Diff
31 lines
1.1 KiB
Diff
From 281140a0a2ce4febf2c0ce5d29d0e7d961a826b1 Mon Sep 17 00:00:00 2001
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From: Tobias Waldekranz <tobias@waldekranz.com>
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Date: Wed, 21 Apr 2021 14:04:53 +0200
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Subject: [PATCH] net: dsa: mv88e6xxx: Fix off-by-one in VTU devlink region
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size
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In the unlikely event of the VTU being loaded to the brim with 4k
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entries, the last one was placed in the buffer, but the size reported
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to devlink was off-by-one. Make sure that the final entry is available
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to the caller.
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Fixes: ca4d632aef03 ("net: dsa: mv88e6xxx: Export VTU as devlink region")
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Signed-off-by: Tobias Waldekranz <tobias@waldekranz.com>
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Reviewed-by: Andrew Lunn <andrew@lunn.ch>
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Signed-off-by: David S. Miller <davem@davemloft.net>
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---
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drivers/net/dsa/mv88e6xxx/devlink.c | 2 +-
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1 file changed, 1 insertion(+), 1 deletion(-)
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--- a/drivers/net/dsa/mv88e6xxx/devlink.c
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+++ b/drivers/net/dsa/mv88e6xxx/devlink.c
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@@ -678,7 +678,7 @@ static int mv88e6xxx_setup_devlink_regio
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sizeof(struct mv88e6xxx_devlink_atu_entry);
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break;
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case MV88E6XXX_REGION_VTU:
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- size = mv88e6xxx_max_vid(chip) *
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+ size = (mv88e6xxx_max_vid(chip) + 1) *
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sizeof(struct mv88e6xxx_devlink_vtu_entry);
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break;
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}
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