netdev - Re: [PATCH 06/11] IB/cma: Refactor RDMA IP CM private-data parsing code

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Date:	Tue, 16 Jun 2015 16:02:23 +0300
From:	Haggai Eran <haggaie@...lanox.com>
To:	"Hefty, Sean" <sean.hefty@...el.com>,
	Doug Ledford <dledford@...hat.com>
CC:	"linux-rdma@...r.kernel.org" <linux-rdma@...r.kernel.org>,
	"netdev@...r.kernel.org" <netdev@...r.kernel.org>,
	Liran Liss <liranl@...lanox.com>,
	Guy Shapiro <guysh@...lanox.com>,
	Shachar Raindel <raindel@...lanox.com>,
	Yotam Kenneth <yotamke@...lanox.com>,
	Jason Gunthorpe <jgunthorpe@...idianresearch.com>
Subject: Re: [PATCH 06/11] IB/cma: Refactor RDMA IP CM private-data parsing
 code

On 16/06/2015 01:33, Hefty, Sean wrote:
>> -static int cma_save_net_info(struct rdma_cm_id *id, struct rdma_cm_id
>> *listen_id,
>> -			     struct ib_cm_event *ib_event)
>> +static u16 cma_port_from_service_id(__be64 service_id)
>>  {
>> -	struct cma_hdr *hdr;
>> +	return be64_to_cpu(service_id);
>> +}
> 
> Nit - Does the compiler not complain about the cast from u64 to u16?
> 

Apparently it does, but only with W=3 (-Wconversion is included there).
W=3 produces about 6k warnings when compiling cma.c, so I don't usually
enable it.

I'll add a cast there to prevent the warning.

Haggai
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