LU-9859 libcfs: replace cfs_srand() calls with add_device_randomness().

[fs/lustre-release.git] / lnet / lnet / router.c

diff --git a/lnet/lnet/router.c b/lnet/lnet/router.c
index c66f5a5..ddc9261 100644 (file)
--- a/lnet/lnet/router.c
+++ b/lnet/lnet/router.c
@@ -21,6 +21,8 @@
  */
 
 #define DEBUG_SUBSYSTEM S_LNET
+
+#include <linux/random.h>
 #include <lnet/lib-lnet.h>
 
 #define LNET_NRB_TINY_MIN      512     /* min value for each CPT */
@@ -261,27 +263,17 @@ lnet_find_rnet_locked(__u32 net)
 static void lnet_shuffle_seed(void)
 {
        static int seeded;
-       __u32 lnd_type;
-       __u32 seed[2];
-       struct timespec64 ts;
        struct lnet_ni *ni = NULL;
 
        if (seeded)
                return;
 
-       cfs_get_random_bytes(seed, sizeof(seed));
-
        /* Nodes with small feet have little entropy
-        * the NID for this node gives the most entropy in the low bits */
-       while ((ni = lnet_get_next_ni_locked(NULL, ni))) {
-               lnd_type = LNET_NETTYP(LNET_NIDNET(ni->ni_nid));
-
-               if (lnd_type != LOLND)
-                       seed[0] ^= (LNET_NIDADDR(ni->ni_nid) | lnd_type);
-       }
+        * the NID for this node gives the most entropy in the low bits
+        */
+       while ((ni = lnet_get_next_ni_locked(NULL, ni)))
+               add_device_randomness(&ni->ni_nid, sizeof(ni->ni_nid));
 
-       ktime_get_ts64(&ts);
-       cfs_srand(ts.tv_sec ^ seed[0], ts.tv_nsec ^ seed[1]);
        seeded = 1;
        return;
 }