kni: remove panic exits from library

This also helps to remove stack backtrace when kernel module is not
inserted.

Signed-off-by: Ferruh Yigit <ferruh.yigit@intel.com>

diff --git a/lib/librte_kni/rte_kni.c b/lib/librte_kni/rte_kni.c
index f48b72b..d88a70d 100644 (file)
--- a/lib/librte_kni/rte_kni.c
+++ b/lib/librte_kni/rte_kni.c
@@ -210,14 +210,18 @@ rte_kni_init(unsigned int max_kni_ifaces)
        if (max_kni_ifaces == 0) {
                RTE_LOG(ERR, KNI, "Invalid number of max_kni_ifaces %d\n",
                                                        max_kni_ifaces);
-               rte_panic("Unable to initialize KNI\n");
+               RTE_LOG(ERR, KNI, "Unable to initialize KNI\n");
+               return;
        }
 
        /* Check FD and open */
        if (kni_fd < 0) {
                kni_fd = open("/dev/" KNI_DEVICE, O_RDWR);
-               if (kni_fd < 0)
-                       rte_panic("Can not open /dev/%s\n", KNI_DEVICE);
+               if (kni_fd < 0) {
+                       RTE_LOG(ERR, KNI,
+                               "Can not open /dev/%s\n", KNI_DEVICE);
+                       return;
+               }
        }
 
        /* Allocate slot objects */
@@ -307,8 +311,8 @@ rte_kni_init(unsigned int max_kni_ifaces)
        return;
 
 kni_fail:
-       rte_panic("Unable to allocate memory for max_kni_ifaces:%d. Increase the amount of hugepages memory\n",
-                        max_kni_ifaces);
+       RTE_LOG(ERR, KNI, "Unable to allocate memory for max_kni_ifaces:%d."
+               "Increase the amount of hugepages memory\n", max_kni_ifaces);
 }
 
 
@@ -483,8 +487,9 @@ rte_kni_release(struct rte_kni *kni)
 
        /* Release memzone */
        if (slot_id > kni_memzone_pool.max_ifaces) {
-               rte_panic("KNI pool: corrupted slot ID: %d, max: %d\n",
+               RTE_LOG(ERR, KNI, "KNI pool: corrupted slot ID: %d, max: %d\n",
                        slot_id, kni_memzone_pool.max_ifaces);
+               return -1;
        }
        kni_memzone_pool_release(&kni_memzone_pool.slots[slot_id]);
 
@@ -506,7 +511,8 @@ rte_kni_handle_request(struct rte_kni *kni)
                return 0; /* It is OK of can not getting the request mbuf */
 
        if (req != kni->sync_addr) {
-               rte_panic("Wrong req pointer %p\n", req);
+               RTE_LOG(ERR, KNI, "Wrong req pointer %p\n", req);
+               return -1;
        }
 
        /* Analyze the request and call the relevant actions for it */