On 18/09/2023 22:41, Markus Armbruster wrote: > These guards are all redundant now. > > Signed-off-by: Markus Armbruster <arm...@redhat.com>
Reviewed-by: Li Zhijian <lizhij...@fujitsu.com> > --- > migration/rdma.c | 164 +++++++++++++++-------------------------------- > 1 file changed, 51 insertions(+), 113 deletions(-) > > diff --git a/migration/rdma.c b/migration/rdma.c > index d29affe410..c88cd1f468 100644 > --- a/migration/rdma.c > +++ b/migration/rdma.c > @@ -852,10 +852,8 @@ static int qemu_rdma_broken_ipv6_kernel(struct > ibv_context *verbs, Error **errp) > > if (ibv_query_port(verbs, 1, &port_attr)) { > ibv_close_device(verbs); > - if (errp && !*errp) { > - error_setg(errp, > - "RDMA ERROR: Could not query initial IB > port"); > - } > + error_setg(errp, > + "RDMA ERROR: Could not query initial IB port"); > return -1; > } > > @@ -878,12 +876,10 @@ static int qemu_rdma_broken_ipv6_kernel(struct > ibv_context *verbs, Error **errp) > " migrate over the IB fabric until the > kernel " > " fixes the bug.\n"); > } else { > - if (errp && !*errp) { > - error_setg(errp, "RDMA ERROR: " > - "You only have RoCE / iWARP devices in your > systems" > - " and your management software has specified > '[::]'" > - ", but IPv6 over RoCE / iWARP is not > supported in Linux."); > - } > + error_setg(errp, "RDMA ERROR: " > + "You only have RoCE / iWARP devices in your > systems" > + " and your management software has specified > '[::]'" > + ", but IPv6 over RoCE / iWARP is not supported in > Linux."); > return -1; > } > } > @@ -899,18 +895,14 @@ static int qemu_rdma_broken_ipv6_kernel(struct > ibv_context *verbs, Error **errp) > > /* IB ports start with 1, not 0 */ > if (ibv_query_port(verbs, 1, &port_attr)) { > - if (errp && !*errp) { > - error_setg(errp, "RDMA ERROR: Could not query initial IB port"); > - } > + error_setg(errp, "RDMA ERROR: Could not query initial IB port"); > return -1; > } > > if (port_attr.link_layer == IBV_LINK_LAYER_ETHERNET) { > - if (errp && !*errp) { > - error_setg(errp, "RDMA ERROR: " > - "Linux kernel's RoCE / iWARP does not support IPv6 " > - "(but patches on linux-rdma in progress)"); > - } > + error_setg(errp, "RDMA ERROR: " > + "Linux kernel's RoCE / iWARP does not support IPv6 " > + "(but patches on linux-rdma in progress)"); > return -1; > } > > @@ -935,27 +927,21 @@ static int qemu_rdma_resolve_host(RDMAContext *rdma, > Error **errp) > struct rdma_addrinfo *e; > > if (rdma->host == NULL || !strcmp(rdma->host, "")) { > - if (errp && !*errp) { > - error_setg(errp, "RDMA ERROR: RDMA hostname has not been set"); > - } > + error_setg(errp, "RDMA ERROR: RDMA hostname has not been set"); > return -1; > } > > /* create CM channel */ > rdma->channel = rdma_create_event_channel(); > if (!rdma->channel) { > - if (errp && !*errp) { > - error_setg(errp, "RDMA ERROR: could not create CM channel"); > - } > + error_setg(errp, "RDMA ERROR: could not create CM channel"); > return -1; > } > > /* create CM id */ > ret = rdma_create_id(rdma->channel, &rdma->cm_id, NULL, RDMA_PS_TCP); > if (ret < 0) { > - if (errp && !*errp) { > - error_setg(errp, "RDMA ERROR: could not create channel id"); > - } > + error_setg(errp, "RDMA ERROR: could not create channel id"); > goto err_resolve_create_id; > } > > @@ -964,10 +950,8 @@ static int qemu_rdma_resolve_host(RDMAContext *rdma, > Error **errp) > > ret = rdma_getaddrinfo(rdma->host, port_str, NULL, &res); > if (ret) { > - if (errp && !*errp) { > - error_setg(errp, "RDMA ERROR: could not rdma_getaddrinfo address > %s", > - rdma->host); > - } > + error_setg(errp, "RDMA ERROR: could not rdma_getaddrinfo address %s", > + rdma->host); > goto err_resolve_get_addr; > } > > @@ -1009,18 +993,14 @@ route: > > ret = rdma_get_cm_event(rdma->channel, &cm_event); > if (ret < 0) { > - if (errp && !*errp) { > - error_setg(errp, "RDMA ERROR: could not perform > event_addr_resolved"); > - } > + error_setg(errp, "RDMA ERROR: could not perform > event_addr_resolved"); > goto err_resolve_get_addr; > } > > if (cm_event->event != RDMA_CM_EVENT_ADDR_RESOLVED) { > - if (errp && !*errp) { > - error_setg(errp, > - "RDMA ERROR: result not equal to event_addr_resolved > %s", > - rdma_event_str(cm_event->event)); > - } > + error_setg(errp, > + "RDMA ERROR: result not equal to event_addr_resolved %s", > + rdma_event_str(cm_event->event)); > error_report("rdma_resolve_addr"); > rdma_ack_cm_event(cm_event); > goto err_resolve_get_addr; > @@ -1030,25 +1010,19 @@ route: > /* resolve route */ > ret = rdma_resolve_route(rdma->cm_id, RDMA_RESOLVE_TIMEOUT_MS); > if (ret < 0) { > - if (errp && !*errp) { > - error_setg(errp, "RDMA ERROR: could not resolve rdma route"); > - } > + error_setg(errp, "RDMA ERROR: could not resolve rdma route"); > goto err_resolve_get_addr; > } > > ret = rdma_get_cm_event(rdma->channel, &cm_event); > if (ret < 0) { > - if (errp && !*errp) { > - error_setg(errp, "RDMA ERROR: could not perform > event_route_resolved"); > - } > + error_setg(errp, "RDMA ERROR: could not perform > event_route_resolved"); > goto err_resolve_get_addr; > } > if (cm_event->event != RDMA_CM_EVENT_ROUTE_RESOLVED) { > - if (errp && !*errp) { > - error_setg(errp, "RDMA ERROR: " > - "result not equal to event_route_resolved: %s", > - rdma_event_str(cm_event->event)); > - } > + error_setg(errp, "RDMA ERROR: " > + "result not equal to event_route_resolved: %s", > + rdma_event_str(cm_event->event)); > rdma_ack_cm_event(cm_event); > goto err_resolve_get_addr; > } > @@ -2479,20 +2453,16 @@ static int qemu_rdma_source_init(RDMAContext *rdma, > bool pin_all, Error **errp) > > ret = qemu_rdma_alloc_pd_cq(rdma); > if (ret < 0) { > - if (errp && !*errp) { > - error_setg(errp, "RDMA ERROR: " > - "rdma migration: error allocating pd and cq! Your > mlock()" > - " limits may be too low. Please check $ ulimit -a # > and " > - "search for 'ulimit -l' in the output"); > - } > + error_setg(errp, "RDMA ERROR: " > + "rdma migration: error allocating pd and cq! Your mlock()" > + " limits may be too low. Please check $ ulimit -a # and " > + "search for 'ulimit -l' in the output"); > goto err_rdma_source_init; > } > > ret = qemu_rdma_alloc_qp(rdma); > if (ret < 0) { > - if (errp && !*errp) { > - error_setg(errp, "RDMA ERROR: rdma migration: error allocating > qp!"); > - } > + error_setg(errp, "RDMA ERROR: rdma migration: error allocating qp!"); > goto err_rdma_source_init; > } > > @@ -2509,11 +2479,9 @@ static int qemu_rdma_source_init(RDMAContext *rdma, > bool pin_all, Error **errp) > for (idx = 0; idx < RDMA_WRID_MAX; idx++) { > ret = qemu_rdma_reg_control(rdma, idx); > if (ret < 0) { > - if (errp && !*errp) { > - error_setg(errp, > - "RDMA ERROR: rdma migration: error registering %d > control!", > - idx); > - } > + error_setg(errp, > + "RDMA ERROR: rdma migration: error registering %d > control!", > + idx); > goto err_rdma_source_init; > } > } > @@ -2541,29 +2509,21 @@ static int qemu_get_cm_event_timeout(RDMAContext > *rdma, > } while (ret < 0 && errno == EINTR); > > if (ret == 0) { > - if (errp && !*errp) { > - error_setg(errp, "RDMA ERROR: poll cm event timeout"); > - } > + error_setg(errp, "RDMA ERROR: poll cm event timeout"); > return -1; > } else if (ret < 0) { > - if (errp && !*errp) { > - error_setg(errp, "RDMA ERROR: failed to poll cm event, errno=%i", > - errno); > - } > + error_setg(errp, "RDMA ERROR: failed to poll cm event, errno=%i", > + errno); > return -1; > } else if (poll_fd.revents & POLLIN) { > if (rdma_get_cm_event(rdma->channel, cm_event) < 0) { > - if (errp && !*errp) { > - error_setg(errp, "RDMA ERROR: failed to get cm event"); > - } > + error_setg(errp, "RDMA ERROR: failed to get cm event"); > return -1; > } > return 0; > } else { > - if (errp && !*errp) { > - error_setg(errp, "RDMA ERROR: no POLLIN event, revent=%x", > - poll_fd.revents); > - } > + error_setg(errp, "RDMA ERROR: no POLLIN event, revent=%x", > + poll_fd.revents); > return -1; > } > } > @@ -2596,18 +2556,14 @@ static int qemu_rdma_connect(RDMAContext *rdma, bool > return_path, > > ret = qemu_rdma_post_recv_control(rdma, RDMA_WRID_READY); > if (ret < 0) { > - if (errp && !*errp) { > - error_setg(errp, "RDMA ERROR: posting second control recv"); > - } > + error_setg(errp, "RDMA ERROR: posting second control recv"); > goto err_rdma_source_connect; > } > > ret = rdma_connect(rdma->cm_id, &conn_param); > if (ret < 0) { > perror("rdma_connect"); > - if (errp && !*errp) { > - error_setg(errp, "RDMA ERROR: connecting to destination!"); > - } > + error_setg(errp, "RDMA ERROR: connecting to destination!"); > goto err_rdma_source_connect; > } > > @@ -2616,9 +2572,7 @@ static int qemu_rdma_connect(RDMAContext *rdma, bool > return_path, > } else { > ret = rdma_get_cm_event(rdma->channel, &cm_event); > if (ret < 0) { > - if (errp && !*errp) { > - error_setg(errp, "RDMA ERROR: failed to get cm event"); > - } > + error_setg(errp, "RDMA ERROR: failed to get cm event"); > } > } > if (ret < 0) { > @@ -2628,9 +2582,7 @@ static int qemu_rdma_connect(RDMAContext *rdma, bool > return_path, > > if (cm_event->event != RDMA_CM_EVENT_ESTABLISHED) { > error_report("rdma_get_cm_event != EVENT_ESTABLISHED after > rdma_connect"); > - if (errp && !*errp) { > - error_setg(errp, "RDMA ERROR: connecting to destination!"); > - } > + error_setg(errp, "RDMA ERROR: connecting to destination!"); > rdma_ack_cm_event(cm_event); > goto err_rdma_source_connect; > } > @@ -2678,18 +2630,14 @@ static int qemu_rdma_dest_init(RDMAContext *rdma, > Error **errp) > } > > if (!rdma->host || !rdma->host[0]) { > - if (errp && !*errp) { > - error_setg(errp, "RDMA ERROR: RDMA host is not set!"); > - } > + error_setg(errp, "RDMA ERROR: RDMA host is not set!"); > rdma->errored = true; > return -1; > } > /* create CM channel */ > rdma->channel = rdma_create_event_channel(); > if (!rdma->channel) { > - if (errp && !*errp) { > - error_setg(errp, "RDMA ERROR: could not create rdma event > channel"); > - } > + error_setg(errp, "RDMA ERROR: could not create rdma event channel"); > rdma->errored = true; > return -1; > } > @@ -2697,9 +2645,7 @@ static int qemu_rdma_dest_init(RDMAContext *rdma, Error > **errp) > /* create CM id */ > ret = rdma_create_id(rdma->channel, &listen_id, NULL, RDMA_PS_TCP); > if (ret < 0) { > - if (errp && !*errp) { > - error_setg(errp, "RDMA ERROR: could not create cm_id!"); > - } > + error_setg(errp, "RDMA ERROR: could not create cm_id!"); > goto err_dest_init_create_listen_id; > } > > @@ -2708,19 +2654,15 @@ static int qemu_rdma_dest_init(RDMAContext *rdma, > Error **errp) > > ret = rdma_getaddrinfo(rdma->host, port_str, NULL, &res); > if (ret) { > - if (errp && !*errp) { > - error_setg(errp, "RDMA ERROR: could not rdma_getaddrinfo address > %s", > - rdma->host); > - } > + error_setg(errp, "RDMA ERROR: could not rdma_getaddrinfo address %s", > + rdma->host); > goto err_dest_init_bind_addr; > } > > ret = rdma_set_option(listen_id, RDMA_OPTION_ID, > RDMA_OPTION_ID_REUSEADDR, > &reuse, sizeof reuse); > if (ret < 0) { > - if (errp && !*errp) { > - error_setg(errp, "RDMA ERROR: Error: could not set REUSEADDR > option"); > - } > + error_setg(errp, "RDMA ERROR: Error: could not set REUSEADDR > option"); > goto err_dest_init_bind_addr; > } > > @@ -2804,10 +2746,8 @@ static RDMAContext *qemu_rdma_data_init(const char > *host_port, Error **errp) > rdma->host = g_strdup(addr->host); > rdma->host_port = g_strdup(host_port); > } else { > - if (errp && !*errp) { > - error_setg(errp, "RDMA ERROR: bad RDMA migration address '%s'", > - host_port); > - } > + error_setg(errp, "RDMA ERROR: bad RDMA migration address '%s'", > + host_port); > g_free(rdma); > rdma = NULL; > } > @@ -4193,9 +4133,7 @@ void rdma_start_incoming_migration(const char > *host_port, Error **errp) > ret = rdma_listen(rdma->listen_id, 5); > > if (ret < 0) { > - if (errp && !*errp) { > - error_setg(errp, "RDMA ERROR: listening on socket!"); > - } > + error_setg(errp, "RDMA ERROR: listening on socket!"); > goto cleanup_rdma; > } >