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Tue, 21 Jul 2026 21:17:12 -0700 (PDT) From: Aravind Krishna To: netdev@vger.kernel.org Cc: kuba@kernel.org, pabeni@redhat.com, edumazet@google.com, horms@kernel.org, davem@davemloft.net, linux-kernel@vger.kernel.org, Aravind Krishna Subject: [PATCH] hsr: prp: honor master promisc mode for local delivery with macvlan Date: Wed, 22 Jul 2026 09:46:29 +0530 Message-Id: <20260722041629.657330-1-aravindkrishhna@gmail.com> X-Mailer: git-send-email 2.34.1 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" When running MACVLAN over PRP, packets can be expected to be delivered to the local stack when the PRP/HSR master is in promiscuous mode. Update local destination handling in check_local_dest() so that if the master device exists and has IFF_PROMISC set, the packet is marked PACKET_HOST and treated as local destination. This enables expected receive behavior for MACVLAN over PRP setups. Signed-off-by: Aravind-kris --- net/hsr/hsr_forward.c | 22 ++++++++++++++++++++-- 1 file changed, 20 insertions(+), 2 deletions(-) diff --git a/net/hsr/hsr_forward.c b/net/hsr/hsr_forward.c index 0774981a65c1..38ed6b09fc4a 100644 --- a/net/hsr/hsr_forward.c +++ b/net/hsr/hsr_forward.c @@ -589,6 +589,8 @@ static void hsr_forward_do(struct hsr_frame_info *frame) static void check_local_dest(struct hsr_priv *hsr, struct sk_buff *skb, struct hsr_frame_info *frame) { + struct hsr_port *master; + if (hsr_addr_is_self(hsr, eth_hdr(skb)->h_dest)) { frame->is_local_exclusive =3D true; skb->pkt_type =3D PACKET_HOST; @@ -600,8 +602,24 @@ static void check_local_dest(struct hsr_priv *hsr, str= uct sk_buff *skb, skb->pkt_type =3D=3D PACKET_MULTICAST || skb->pkt_type =3D=3D PACKET_BROADCAST) { frame->is_local_dest =3D true; - } else { - frame->is_local_dest =3D false; + } + else + { + master =3D hsr_port_get_hsr(hsr, HSR_PT_MASTER); + + if (!master || !master->dev) + { + frame->is_local_dest =3D false; + } + else if (master->dev->flags & IFF_PROMISC) + { + skb->pkt_type =3D PACKET_HOST; + frame->is_local_dest =3D true; + } + else + { + frame->is_local_dest =3D false; + } } } =20 --=20 2.34.1