From f18e18e0ccf7d3cb08042ad77074e1cbd070555d Mon Sep 17 00:00:00 2001 From: Stephen Hemminger Date: Wed, 5 Dec 2018 14:02:30 -0800 Subject: [PATCH] bus/dpaa: do nothing if bus not present The DPAA bus support code put out messages like: dpaax: read_memory_node(): Unable to glob device-tree memory node: (/proc/device-tree/memory[@0-9]*/reg)(3) dpaax: PA->VA translation not available; dpaax: Expect performance impact. These are unnecessary and likely to confuse the end user. Fix this by doing nothing if bus is empty. Fixes: 5a7dbb934d75 ("dpaa: enable dpaax library") Cc: stable@dpdk.org Signed-off-by: Stephen Hemminger Acked-by: Shreyansh Jain --- drivers/bus/dpaa/dpaa_bus.c | 7 +++++-- 1 file changed, 5 insertions(+), 2 deletions(-) diff --git a/drivers/bus/dpaa/dpaa_bus.c b/drivers/bus/dpaa/dpaa_bus.c index 203f60dc18..204a50b1eb 100644 --- a/drivers/bus/dpaa/dpaa_bus.c +++ b/drivers/bus/dpaa/dpaa_bus.c @@ -542,6 +542,10 @@ rte_dpaa_bus_probe(void) unsigned int svr_ver; int probe_all = rte_dpaa_bus.bus.conf.scan_mode != RTE_BUS_SCAN_WHITELIST; + /* If DPAA bus is not present nothing needs to be done */ + if (TAILQ_EMPTY(&rte_dpaa_bus.device_list)) + return 0; + svr_file = fopen(DPAA_SOC_ID_FILE, "r"); if (svr_file) { if (fscanf(svr_file, "svr:%x", &svr_ver) > 0) @@ -586,8 +590,7 @@ rte_dpaa_bus_probe(void) /* Register DPAA mempool ops only if any DPAA device has * been detected. */ - if (!TAILQ_EMPTY(&rte_dpaa_bus.device_list)) - rte_mbuf_set_platform_mempool_ops(DPAA_MEMPOOL_OPS_NAME); + rte_mbuf_set_platform_mempool_ops(DPAA_MEMPOOL_OPS_NAME); return 0; } -- 2.20.1