> -----Original Message-----
> From: Aditya Garg <[email protected]>
> Sent: Monday, January 12, 2026 5:02 AM
> To: KY Srinivasan <[email protected]>; Haiyang Zhang
> <[email protected]>; [email protected]; Dexuan Cui
> <[email protected]>; Long Li <[email protected]>;
> [email protected]; [email protected]; [email protected];
> [email protected]; [email protected]; [email protected]; linux-
> [email protected]; [email protected]; linux-
> [email protected]; [email protected];
> [email protected]; [email protected];
> [email protected]; Aditya Garg <[email protected]>;
> [email protected]
> Subject: [PATCH net-next] net: hv_netvsc: reject RSS hash key programming
> without RX indirection table
>
> RSS configuration requires a valid RX indirection table. When the device
> reports a single receive queue, rndis_filter_device_add() does not
> allocate an indirection table, accepting RSS hash key updates in this
> state leads to a hang.
>
> Fix this by gating netvsc_set_rxfh() on ndc->rx_table_sz and return
> -EOPNOTSUPP when the table is absent. This aligns set_rxfh with the device
> capabilities and prevents incorrect behavior.
>
> Fixes: 962f3fee83a4 ("netvsc: add ethtool ops to get/set RSS key")
> Signed-off-by: Aditya Garg <[email protected]>
> Reviewed-by: Dipayaan Roy <[email protected]>
Reviewed-by: Haiyang Zhang <[email protected]>
