Re: linux-next: build warning after merge of the nfsd tree

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> On May 10, 2018, at 11:24 AM, Bruce Fields <bfields@xxxxxxxxxxxx> wrote:
> 
> On Thu, May 10, 2018 at 10:21:05AM -0400, Chuck Lever wrote:
>> 
>> 
>>> On May 9, 2018, at 8:42 PM, Stephen Rothwell <sfr@xxxxxxxxxxxxxxxx> wrote:
>>> 
>>> Hi all,
>>> 
>>> After merging the nfsd tree, today's linux-next build (powerpc
>>> ppc64_defconfig) produced this warning:
>>> 
>>> net/sunrpc/xprtrdma/svc_rdma_transport.c: In function 'rdma_listen_handler':
>>> net/sunrpc/xprtrdma/svc_rdma_transport.c:299:23: warning: unused variable 'rdma' [-Wunused-variable]
>>> struct svcxprt_rdma *rdma = cma_id->context;
>>>                      ^~~~
>> 
>> Needs to be wrapped with "#if IS_ENABLED(CONFIG_SUNRPC_DEBUG)"
>> Would you like me to send a patch?
> 
> Any objection to saving the #if and just going back to writing out
> cma_id->context there?

LGTM

That's not really very useful information anyway, but I decided
to leave this stuff mostly as-is for now. I plan to do something
to fix races between disconnect and device removal at some point.


> I've done that in my tree.
> 
> --b.
> 
> diff --git a/net/sunrpc/xprtrdma/svc_rdma_transport.c b/net/sunrpc/xprtrdma/svc_rdma_transport.c
> index ca9001d73456..05edb18f8ca3 100644
> --- a/net/sunrpc/xprtrdma/svc_rdma_transport.c
> +++ b/net/sunrpc/xprtrdma/svc_rdma_transport.c
> @@ -544,7 +544,6 @@ static int rdma_listen_handler(struct rdma_cm_id *cma_id,
> 			       struct rdma_cm_event *event)
> {
> 	struct sockaddr *sap = (struct sockaddr *)&cma_id->route.addr.src_addr;
> -	struct svcxprt_rdma *rdma = cma_id->context;
> 	int ret = 0;
> 
> 	trace_svcrdma_cm_event(event, sap);
> @@ -552,7 +551,7 @@ static int rdma_listen_handler(struct rdma_cm_id *cma_id,
> 	switch (event->event) {
> 	case RDMA_CM_EVENT_CONNECT_REQUEST:
> 		dprintk("svcrdma: Connect request on cma_id=%p, xprt = %p, "
> -			"event = %s (%d)\n", cma_id, rdma,
> +			"event = %s (%d)\n", cma_id, cma_id->context,
> 			rdma_event_msg(event->event), event->event);
> 		handle_connect_req(cma_id, &event->param.conn);
> 		break;

--
Chuck Lever



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