[dpdk-dev] [PATCH] eal: fix whitelists for hot plug devices

[Tomasz Kulasek]

Currently white/blacklists doesn't work for hotplugged devices.

This patch checks if device is on the blacklist before attempting
to attach it.

Fixes: a3ee360f4440 ("eal: add hotplug add/remove device")
Cc: jblu...@infradead.org

Signed-off-by: Tomasz Kulasek <tomaszx.kula...@intel.com>
---
 lib/librte_eal/common/eal_common_dev.c | 24 ++++++++++++++++++++++++
 1 file changed, 24 insertions(+)

diff --git a/lib/librte_eal/common/eal_common_dev.c 
b/lib/librte_eal/common/eal_common_dev.c
index 678dbca..5f4b600 100644
--- a/lib/librte_eal/common/eal_common_dev.c
+++ b/lib/librte_eal/common/eal_common_dev.c
@@ -147,6 +147,30 @@ int __rte_experimental rte_eal_hotplug_add(const char 
*busname, const char *devn
                return -ENOTSUP;
        }
 
+       /* Check if device is blacklisted */
+       if (bus->conf.scan_mode == RTE_BUS_SCAN_WHITELIST)
+               ret = -EINVAL;
+       else
+               ret = 0;
+
+       da = NULL;
+       do {
+               da = rte_devargs_next(busname, da);
+               if (da != NULL && strcmp(da->name, devname) == 0) {
+                       if (da->policy == RTE_DEV_BLACKLISTED)
+                               ret = -EINVAL;
+                       else
+                               ret = 0;
+                       break;
+               }
+       } while (da != NULL);
+
+       if (ret) {
+               RTE_LOG(INFO, EAL, "  Device is blacklisted (%s)\n",
+                               devname);
+               return ret;
+       }
+
        da = calloc(1, sizeof(*da));
        if (da == NULL)
                return -ENOMEM;
-- 
2.7.4