Fix two annoying warnings in our UCX support.

ompi/mca/pml/ucx/pml_ucx_request.c

@@ -68,8 +68,9 @@ static void mca_pml_ucx_persistent_request_detach(mca_pml_ucx_persistent_request
     preq->tmp_req                 = NULL;
 }
 
-void mca_pml_ucx_persistent_request_complete(mca_pml_ucx_persistent_request_t *preq,
-                                             ompi_request_t *tmp_req)
+inline void
+mca_pml_ucx_persistent_request_complete(mca_pml_ucx_persistent_request_t *preq,
+                                        ompi_request_t *tmp_req)
 {
     preq->ompi.req_status = tmp_req->req_status;
     ompi_request_complete(&preq->ompi, true);

oshmem/mca/spml/ucx/spml_ucx.h

@@ -120,7 +120,7 @@ mca_spml_ucx_get_mkey(int pe, void *va, void **rva)
     return (spml_ucx_mkey_t *)(r_mkey->spml_context);
 }
 
-static inline ucx_status_to_oshmem(ucs_status_t status)
+static inline int ucx_status_to_oshmem(ucs_status_t status)
 {
     return OPAL_LIKELY(UCS_OK == status) ? OSHMEM_SUCCESS : OSHMEM_ERROR;
 }