Re: [PATCH v2 02/11] IB/core: Change port_attr.sm_lid from 16 to 32 bits

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On Tue, Nov 22, 2016 at 02:38:43PM -0500, Dasaratharaman Chandramouli wrote:
> +++ b/drivers/infiniband/core/sa_query.c
> @@ -958,7 +958,7 @@ static void update_sm_ah(struct work_struct *work)
>  		pr_err("Couldn't find index for default PKey\n");
>  
>  	memset(&ah_attr, 0, sizeof ah_attr);
> -	ah_attr.dlid     = port_attr.sm_lid;
> +	ah_attr.dlid     = (u16)port_attr.sm_lid;

Why are we dropping bits here?

> +++ b/drivers/infiniband/ulp/srpt/ib_srpt.c
> @@ -514,7 +514,7 @@ static int srpt_refresh_port(struct srpt_port *sport)
>  	if (ret)
>  		goto err_query_port;
>  
> -	sport->sm_lid = port_attr.sm_lid;
> +	sport->sm_lid = (u16)port_attr.sm_lid;
>  	sport->lid = port_attr.lid;

And here..

> +#if !defined(OPA_ADDR_H)
> +#define OPA_ADDR_H

I don't think we need a header file for this.

> +#define OPA_TO_IB_UCAST_LID(x)	(((x) >= be16_to_cpu(IB_MULTICAST_LID_BASE)) \
> +				 ? 0 : x)

static inline function please.

Jason
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