From: Aaron Conole <aconole@redhat.com>
Date: Wed, 22 Mar 2017 20:19:39 +0000 (-0400)
Subject: eal: do not panic on bus probe/scan failure
X-Git-Tag: spdx-start~4402
X-Git-Url: http://git.droids-corp.org/?a=commitdiff_plain;h=1908008f5d0cb6fea21849bcad506a8794a02d82;p=dpdk.git

eal: do not panic on bus probe/scan failure

For now, exit the init.  It's likely that even aborting the initialization
is premature in this case, as it may be possible to proceed even if one
bus or another is not available.

Signed-off-by: Aaron Conole <aconole@redhat.com>
Acked-by: Bruce Richardson <bruce.richardson@intel.com>
---

diff --git a/lib/librte_eal/bsdapp/eal/eal.c b/lib/librte_eal/bsdapp/eal/eal.c
index debecaa847..4ee9c66fee 100644
--- a/lib/librte_eal/bsdapp/eal/eal.c
+++ b/lib/librte_eal/bsdapp/eal/eal.c
@@ -624,8 +624,11 @@ rte_eal_init(int argc, char **argv)
 		rte_config.master_lcore, thread_id, cpuset,
 		ret == 0 ? "" : "...");
 
-	if (rte_bus_scan())
-		rte_panic("Cannot scan the buses for devices\n");
+	if (rte_bus_scan()) {
+		rte_eal_init_alert("Cannot scan the buses for devices\n");
+		rte_errno = ENODEV;
+		return -1;
+	}
 
 	RTE_LCORE_FOREACH_SLAVE(i) {
 
@@ -660,8 +663,11 @@ rte_eal_init(int argc, char **argv)
 	rte_eal_mp_wait_lcore();
 
 	/* Probe all the buses and devices/drivers on them */
-	if (rte_bus_probe())
-		rte_panic("Cannot probe devices\n");
+	if (rte_bus_probe()) {
+		rte_eal_init_alert("Cannot probe devices\n");
+		rte_errno = ENOTSUP;
+		return -1;
+	}
 
 	/* Probe & Initialize PCI devices */
 	if (rte_eal_pci_probe()) {
diff --git a/lib/librte_eal/linuxapp/eal/eal.c b/lib/librte_eal/linuxapp/eal/eal.c
index 8abc1c6b55..f0ded185b5 100644
--- a/lib/librte_eal/linuxapp/eal/eal.c
+++ b/lib/librte_eal/linuxapp/eal/eal.c
@@ -899,8 +899,11 @@ rte_eal_init(int argc, char **argv)
 		return -1;
 	}
 
-	if (rte_bus_scan())
-		rte_panic("Cannot scan the buses for devices\n");
+	if (rte_bus_scan()) {
+		rte_eal_init_alert("Cannot scan the buses for devices\n");
+		rte_errno = ENODEV;
+		return -1;
+	}
 
 	RTE_LCORE_FOREACH_SLAVE(i) {
 
@@ -939,8 +942,11 @@ rte_eal_init(int argc, char **argv)
 	rte_eal_mp_wait_lcore();
 
 	/* Probe all the buses and devices/drivers on them */
-	if (rte_bus_probe())
-		rte_panic("Cannot probe devices\n");
+	if (rte_bus_probe()) {
+		rte_eal_init_alert("Cannot probe devices\n");
+		rte_errno = ENOTSUP;
+		return -1;
+	}
 
 	/* Probe & Initialize PCI devices */
 	if (rte_eal_pci_probe()) {