Re: [PATCH net v1 4/6] net: dsa: microchip: ksz8: ksz8_fdb_dump: avoid extracting ghost entry from empty dynamic MAC table.

[Arun.Ramadoss]

Hi Oleksij,

On Wed, 2023-03-22 at 15:31 +0100, Oleksij Rempel wrote:
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> 
> If the dynamic MAC table is empty, we will still extract one outdated
> entry. Fix it by using correct bit offset.
> 
> Fixes: d23a5e18606c ("net: dsa: microchip: move ksz8->masks to
> ksz_common")
> Signed-off-by: Oleksij Rempel <o.rempel@xxxxxxxxxxxxxx>
> ---
>  drivers/net/dsa/microchip/ksz_common.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/drivers/net/dsa/microchip/ksz_common.c
> b/drivers/net/dsa/microchip/ksz_common.c
> index c914449645ca..4929fb29ed06 100644
> --- a/drivers/net/dsa/microchip/ksz_common.c
> +++ b/drivers/net/dsa/microchip/ksz_common.c
> @@ -408,7 +408,7 @@ static const u32 ksz8863_masks[] = {
>         [STATIC_MAC_TABLE_OVERRIDE]     = BIT(20),
>         [STATIC_MAC_TABLE_FWD_PORTS]    = GENMASK(18, 16),
>         [DYNAMIC_MAC_TABLE_ENTRIES_H]   = GENMASK(1, 0),
> -       [DYNAMIC_MAC_TABLE_MAC_EMPTY]   = BIT(7),
> +       [DYNAMIC_MAC_TABLE_MAC_EMPTY]   = BIT(2),

Cross verified the bit mask with datasheet.
Patch Looks good to me.

Acked-by: Arun Ramadoss <arun.ramadoss@xxxxxxxxxxxxx>

>         [DYNAMIC_MAC_TABLE_NOT_READY]   = BIT(7),
>         [DYNAMIC_MAC_TABLE_ENTRIES]     = GENMASK(31, 24),
>         [DYNAMIC_MAC_TABLE_FID]         = GENMASK(19, 16),
> --
> 2.30.2
>