netdev - Re: [PATCH net-next v3 2/5] vxlan: Expose helper vxlan_build_gbp

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Date:   Sun, 19 Feb 2023 21:32:27 +0100
From:   Simon Horman <simon.horman@...igine.com>
To:     Gavin Li <gavinl@...dia.com>
Cc:     davem@...emloft.net, edumazet@...gle.com, kuba@...nel.org,
        pabeni@...hat.com, roopa@...dia.com,
        eng.alaamohamedsoliman.am@...il.com, bigeasy@...utronix.de,
        netdev@...r.kernel.org, linux-kernel@...r.kernel.org,
        gavi@...dia.com, roid@...dia.com, maord@...dia.com,
        saeedm@...dia.com
Subject: Re: [PATCH net-next v3 2/5] vxlan: Expose helper vxlan_build_gbp_hdr

On Fri, Feb 17, 2023 at 05:39:22AM +0200, Gavin Li wrote:
> vxlan_build_gbp_hdr will be used by other modules to build gbp option in
> vxlan header according to gbp flags.
> 
> Signed-off-by: Gavin Li <gavinl@...dia.com>
> Reviewed-by: Gavi Teitz <gavi@...dia.com>
> Reviewed-by: Roi Dayan <roid@...dia.com>
> Reviewed-by: Maor Dickman <maord@...dia.com>
> Acked-by: Saeed Mahameed <saeedm@...dia.com>

I do wonder if this needs to be a static inline function.
But nonetheless,

Reviewed-by: Simon Horman <simon.horman@...igine.com>

> ---
>  drivers/net/vxlan/vxlan_core.c | 19 -------------------
>  include/net/vxlan.h            | 19 +++++++++++++++++++
>  2 files changed, 19 insertions(+), 19 deletions(-)
> 
> diff --git a/drivers/net/vxlan/vxlan_core.c b/drivers/net/vxlan/vxlan_core.c
> index 86967277ab97..13faab36b3e1 100644
> --- a/drivers/net/vxlan/vxlan_core.c
> +++ b/drivers/net/vxlan/vxlan_core.c
> @@ -2140,25 +2140,6 @@ static bool route_shortcircuit(struct net_device *dev, struct sk_buff *skb)
>  	return false;
>  }
>  
> -static void vxlan_build_gbp_hdr(struct vxlanhdr *vxh, struct vxlan_metadata *md)
> -{
> -	struct vxlanhdr_gbp *gbp;
> -
> -	if (!md->gbp)
> -		return;
> -
> -	gbp = (struct vxlanhdr_gbp *)vxh;
> -	vxh->vx_flags |= VXLAN_HF_GBP;
> -
> -	if (md->gbp & VXLAN_GBP_DONT_LEARN)
> -		gbp->dont_learn = 1;
> -
> -	if (md->gbp & VXLAN_GBP_POLICY_APPLIED)
> -		gbp->policy_applied = 1;
> -
> -	gbp->policy_id = htons(md->gbp & VXLAN_GBP_ID_MASK);
> -}
> -
>  static int vxlan_build_gpe_hdr(struct vxlanhdr *vxh, __be16 protocol)
>  {
>  	struct vxlanhdr_gpe *gpe = (struct vxlanhdr_gpe *)vxh;
> diff --git a/include/net/vxlan.h b/include/net/vxlan.h
> index bca5b01af247..b6d419fa7ab1 100644
> --- a/include/net/vxlan.h
> +++ b/include/net/vxlan.h
> @@ -566,4 +566,23 @@ static inline bool vxlan_fdb_nh_path_select(struct nexthop *nh,
>  	return true;
>  }
>  
> +static inline void vxlan_build_gbp_hdr(struct vxlanhdr *vxh, const struct vxlan_metadata *md)
> +{
> +	struct vxlanhdr_gbp *gbp;
> +
> +	if (!md->gbp)
> +		return;
> +
> +	gbp = (struct vxlanhdr_gbp *)vxh;
> +	vxh->vx_flags |= VXLAN_HF_GBP;
> +
> +	if (md->gbp & VXLAN_GBP_DONT_LEARN)
> +		gbp->dont_learn = 1;
> +
> +	if (md->gbp & VXLAN_GBP_POLICY_APPLIED)
> +		gbp->policy_applied = 1;
> +
> +	gbp->policy_id = htons(md->gbp & VXLAN_GBP_ID_MASK);
> +}
> +
>  #endif
> -- 
> 2.31.1
>