Since commit ffe1f0df5862 ("rpcrdma: Merge svcrdma and xprtrdma modules into one"), the forward and backchannel components are part of the same kernel module. A separate try_module_get() call in the backchannel code is no longer necessary.
Reviewed-by: Sagi Grimberg <sagi@xxxxxxxxxxx> Would it make sense to promote this to xprt.c and remove it from the transports altogether?