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Message-ID: <3f874bb8638258d131fcb764714b12b5a4c9eb39.camel@redhat.com>
Date: Thu, 16 Feb 2023 12:57:11 +0100
From: Paolo Abeni <pabeni@...hat.com>
To: Gavin Li <gavinl@...dia.com>, davem@...emloft.net,
edumazet@...gle.com, kuba@...nel.org, roopa@...dia.com,
eng.alaamohamedsoliman.am@...il.com, bigeasy@...utronix.de
Cc: netdev@...r.kernel.org, linux-kernel@...r.kernel.org,
Gavi Teitz <gavi@...dia.com>, Roi Dayan <roid@...dia.com>,
Maor Dickman <maord@...dia.com>,
Saeed Mahameed <saeedm@...dia.com>
Subject: Re: [PATCH net-next v2 1/3] vxlan: Expose helper vxlan_build_gbp_hdr
On Wed, 2023-02-15 at 11:41 +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>
> ---
> drivers/net/vxlan/vxlan_core.c | 20 --------------------
> include/net/vxlan.h | 20 ++++++++++++++++++++
> 2 files changed, 20 insertions(+), 20 deletions(-)
>
> diff --git a/drivers/net/vxlan/vxlan_core.c b/drivers/net/vxlan/vxlan_core.c
> index b1b179effe2a..bd44467a5a39 100644
> --- a/drivers/net/vxlan/vxlan_core.c
> +++ b/drivers/net/vxlan/vxlan_core.c
> @@ -2140,26 +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, u32 vxflags,
> - 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, u32 vxflags,
> __be16 protocol)
> {
> diff --git a/include/net/vxlan.h b/include/net/vxlan.h
> index bca5b01af247..02b01a6034a2 100644
> --- a/include/net/vxlan.h
> +++ b/include/net/vxlan.h
> @@ -566,4 +566,24 @@ static inline bool vxlan_fdb_nh_path_select(struct nexthop *nh,
> return true;
> }
>
> +static inline void vxlan_build_gbp_hdr(struct vxlanhdr *vxh, u32 vxflags,
> + const struct vxlan_metadata *md)
Calling this helper causes a warning on patch 3 due to different types
for the 2nd argument. The warning could be addressed there with an
explicit cast but it looks like 'vxflags' is not used at all here.
I suggest to add a preparation patch dropping such argument (and the
same for vxlan_build_gpe_hdr(), still in the same patch), should be
cleaner.
Thanks,
Paolo
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