Re: [rdma-next 09/22] RDMA/core: Refactor get link layer wrapper

[Yuval Shaia <yuval.shaia-QHcLZuEGTsvQT0dZR+AlfA@public.gmane.org>]

On Fri, Aug 11, 2017 at 01:49:50PM +0300, Leon Romanovsky wrote:
> From: Leon Romanovsky <leonro-VPRAkNaXOzVWk0Htik3J/w@public.gmane.org>
> 
> The return values from rdma_node_get_transport() are strict
> and IB_LINK_LAYER_UNSPECIFIED is unreachable in this flow.
> 
> Signed-off-by: Leon Romanovsky <leonro-VPRAkNaXOzVWk0Htik3J/w@public.gmane.org>
> Reviewed-by: Dennis Dalessandro <dennis.dalessandro-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org>
> ---
>  drivers/infiniband/core/verbs.c | 13 +++++--------
>  1 file changed, 5 insertions(+), 8 deletions(-)
> 
> diff --git a/drivers/infiniband/core/verbs.c b/drivers/infiniband/core/verbs.c
> index 0d359a482b13..e3aa9c60bcc5 100644
> --- a/drivers/infiniband/core/verbs.c
> +++ b/drivers/infiniband/core/verbs.c
> @@ -192,18 +192,15 @@ EXPORT_SYMBOL(rdma_node_get_transport);
>  
>  enum rdma_link_layer rdma_port_get_link_layer(struct ib_device *device, u8 port_num)
>  {
> +	enum rdma_transport_type lt;
>  	if (device->get_link_layer)
>  		return device->get_link_layer(device, port_num);
>  
> -	switch (rdma_node_get_transport(device->node_type)) {
> -	case RDMA_TRANSPORT_IB:
> +	lt = rdma_node_get_transport(device->node_type);
> +	if (lt == RDMA_TRANSPORT_IB)
>  		return IB_LINK_LAYER_INFINIBAND;
> -	case RDMA_TRANSPORT_IWARP:
> -	case RDMA_TRANSPORT_USNIC_UDP:
> -		return IB_LINK_LAYER_ETHERNET;
> -	default:
> -		return IB_LINK_LAYER_UNSPECIFIED;
> -	}
> +
> +	return IB_LINK_LAYER_ETHERNET;
>  }
>  EXPORT_SYMBOL(rdma_port_get_link_layer);
>  

Reviewed-by: Yuval Shaia <yuval.shaia-QHcLZuEGTsvQT0dZR+AlfA@public.gmane.org>

> -- 
> 2.14.0
> 
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