[patch -next] 9pnet_rdma build error

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Richard Holden wrote:
> Stephen Rothwell wrote:
>> Hi all,
>>
>> News:  I will be on leave next week, so there will probably be no
>> linux-next release until Feb 2.
> 
> Error in net/9p caused by CONFIG_NET_9P =y and CONFIG_NET_9P_RDMA=m:
> CONFIG_NET_9P_RDMA is tristate, depending on infiniband which is a module.
> 
> Config and log attached.
> ERROR: "rdma_destroy_id" [net/9p/9pnet_rdma.ko] undefined!
> ERROR: "rdma_connect" [net/9p/9pnet_rdma.ko] undefined!
> ERROR: "rdma_create_id" [net/9p/9pnet_rdma.ko] undefined!
> ERROR: "rdma_create_qp" [net/9p/9pnet_rdma.ko] undefined!
> ERROR: "rdma_resolve_route" [net/9p/9pnet_rdma.ko] undefined!
> ERROR: "rdma_disconnect" [net/9p/9pnet_rdma.ko] undefined!
> ERROR: "rdma_resolve_addr" [net/9p/9pnet_rdma.ko] undefined!

Here is one possible patch for this.


From: Randy Dunlap <randy.dunlap@xxxxxxxxxx>

SUNRPC_XPRT_RDMA uses Infiniband RDMA support, so make it depend on
that kconfig symbol for clean builds.

net/built-in.o: In function `rpcrdma_ep_disconnect':
(.text+0x9c2a8): undefined reference to `rdma_disconnect'
net/built-in.o: In function `rpcrdma_create_id':
verbs.c:(.text+0x9c39f): undefined reference to `rdma_create_id'
verbs.c:(.text+0x9c3e3): undefined reference to `rdma_resolve_addr'
verbs.c:(.text+0x9c439): undefined reference to `rdma_resolve_route'
verbs.c:(.text+0x9c482): undefined reference to `rdma_destroy_id'
net/built-in.o: In function `rpcrdma_ep_destroy':
(.text+0x9c84d): undefined reference to `rdma_destroy_qp'
net/built-in.o: In function `rpcrdma_ia_close':
(.text+0x9cb44): undefined reference to `rdma_destroy_qp'
net/built-in.o: In function `rpcrdma_ia_close':
(.text+0x9cb4b): undefined reference to `rdma_destroy_id'
net/built-in.o: In function `rpcrdma_ia_open':
(.text+0x9cdb4): undefined reference to `rdma_destroy_id'
net/built-in.o: In function `rpcrdma_ep_connect':
(.text+0x9d2dd): undefined reference to `rdma_destroy_id'
net/built-in.o: In function `rpcrdma_ep_connect':
(.text+0x9d2eb): undefined reference to `rdma_destroy_qp'
net/built-in.o: In function `rpcrdma_ep_connect':
(.text+0x9d2f8): undefined reference to `rdma_destroy_id'
net/built-in.o: In function `rpcrdma_ep_connect':
(.text+0x9d319): undefined reference to `rdma_create_qp'
net/built-in.o: In function `rpcrdma_ep_connect':
(.text+0x9d3e0): undefined reference to `rdma_connect'
net/built-in.o: In function `svc_rdma_detach':
svc_rdma_transport.c:(.text+0x9ddbb): undefined reference to `rdma_disconnect'
net/built-in.o: In function `__svc_rdma_free':
svc_rdma_transport.c:(.text+0x9f041): undefined reference to `rdma_destroy_id'
net/built-in.o: In function `svc_rdma_accept':
svc_rdma_transport.c:(.text+0x9f362): undefined reference to `rdma_create_qp'
svc_rdma_transport.c:(.text+0x9f388): undefined reference to `rdma_create_qp'
svc_rdma_transport.c:(.text+0x9f553): undefined reference to `rdma_accept'
svc_rdma_transport.c:(.text+0x9f682): undefined reference to `rdma_destroy_id'
net/built-in.o: In function `svc_rdma_create':
svc_rdma_transport.c:(.text+0x9f70e): undefined reference to `rdma_create_id'
svc_rdma_transport.c:(.text+0x9f739): undefined reference to `rdma_bind_addr'
svc_rdma_transport.c:(.text+0x9f762): undefined reference to `rdma_listen'
svc_rdma_transport.c:(.text+0x9f79e): undefined reference to `rdma_destroy_id'

Signed-off-by: Randy Dunlap <randy.dunlap@xxxxxxxxxx>
cc:      J. Bruce Fields <bfields@xxxxxxxxxxxx>
cc:      Trond Myklebust <Trond.Myklebust@xxxxxxxxxx>
cc:      Roland Dreier <rolandd@xxxxxxxxx>
---
 fs/Kconfig |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- linux-next-20090121.orig/fs/Kconfig
+++ linux-next-20090121/fs/Kconfig
@@ -1405,7 +1405,7 @@ config SUNRPC_GSS
 
 config SUNRPC_XPRT_RDMA
 	tristate
-	depends on SUNRPC && INFINIBAND && EXPERIMENTAL
+	depends on SUNRPC && INFINIBAND && INFINIBAND_ADDR_TRANS && EXPERIMENTAL
 	default SUNRPC && INFINIBAND
 	help
 	  This option allows the NFS client and server to support

-- 
~Randy
--
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