Re: [net PATCH 1/1] drivers: net: cpsw: discard dual emac default vlan configuration

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Hello.

On 1/20/2015 3:25 PM, Mugunthan V N wrote:

In Dual EMAC, the default vlans are used to segregate rx packets between

   VLANs. And RX.

the ports, so adding the same default vlan to the switch will affect the

   VLAN.

normal packet transfers. So returning error on addition of dual emac

   EMAC.

default vlans.

   VLANs.

Even if emac 0 default port vlan is added to emac 1, it will lead to

   EMAC. And VLAN

break

   Breaking.

dual EMAC port seperations.

   Separations.

Fixes: d9ba8f9 (driver: net: ethernet: cpsw: dual emac interface implementation)

   12 hex digits, please.

Cc: <stable@xxxxxxxxxxxxxxx> # v3.9+
Reported-by: Felipe Balbi <balbi@xxxxxx>
Signed-off-by: Mugunthan V N <mugunthanvnm@xxxxxx>
---
  drivers/net/ethernet/ti/cpsw.c | 22 ++++++++++++++++++++++
  1 file changed, 22 insertions(+)

diff --git a/drivers/net/ethernet/ti/cpsw.c b/drivers/net/ethernet/ti/cpsw.c
index e068d48..7c32815 100644
--- a/drivers/net/ethernet/ti/cpsw.c
+++ b/drivers/net/ethernet/ti/cpsw.c
@@ -1683,6 +1683,19 @@ static int cpsw_ndo_vlan_rx_add_vid(struct net_device *ndev,
  	if (vid == priv->data.default_vlan)
  		return 0;

+	if (priv->data.dual_emac) {
+		/* In dual EMAC, reserved VLAN id should not be used of

   s/of/for/, perhaps?

+		 * creating vlan interfaces as this can break the dual

   s/vlan/VLAN/. Be consistent, please.

+		 * EMAC port seperation

   Separation.

[...]

WBR, Sergei

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