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Date:   Thu, 06 Oct 2022 14:24:17 +0200
From:   netdev@kapio-technology.com
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Subject: Re: [PATCH v6 net-next 8/9] net: dsa: mv88e6xxx: add blackhole ATU
 entries
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On 2022-09-28 17:02, Hans Schultz wrote:
> From: "Hans J. Schultz" <netdev@kapio-technology.com>
> 
> Blackhole FDB entries can now be added, deleted or replaced in the
> driver ATU.
> 
> Signed-off-by: Hans J. Schultz <netdev@kapio-technology.com>
> ---
>  drivers/net/dsa/mv88e6xxx/chip.c | 78 ++++++++++++++++++++++++++++++--
>  1 file changed, 74 insertions(+), 4 deletions(-)
> 
> diff --git a/drivers/net/dsa/mv88e6xxx/chip.c 
> b/drivers/net/dsa/mv88e6xxx/chip.c
> index 71843fe87f77..a17f30e5d4a6 100644
> --- a/drivers/net/dsa/mv88e6xxx/chip.c
> +++ b/drivers/net/dsa/mv88e6xxx/chip.c
> @@ -2735,6 +2735,72 @@ static int mv88e6xxx_vlan_msti_set(struct 
> dsa_switch *ds,
>  	return err;
>  }
> 
> +struct mv88e6xxx_vid_search_ctx {
> +	u16 vid_search;
> +	u16 fid_found;
> +};
> +
> +static int mv88e6xxx_find_fid_on_matching_vid(struct mv88e6xxx_chip 
> *chip,
> +					      const struct mv88e6xxx_vtu_entry *entry,
> +					      void *priv)
> +{
> +	struct mv88e6xxx_vid_search_ctx *ctx = priv;
> +

FYI: I have already made updates to this part to use mv88e6xxx_vtu_get() 
instead of the walk, which also fixes a problem when vid=0 in this 
implementation.