Module Name: src
Committed By: ozaki-r
Date: Tue Feb 25 03:26:18 UTC 2020
Modified Files:
src/sys/rump/net/lib/libshmif: if_shmem.c
Log Message:
shmif: reduce the number of calls of cprng(9)
To generate a diff of this commit:
cvs rdiff -u -r1.80 -r1.81 src/sys/rump/net/lib/libshmif/if_shmem.c
Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.
Modified files:
Index: src/sys/rump/net/lib/libshmif/if_shmem.c
diff -u src/sys/rump/net/lib/libshmif/if_shmem.c:1.80 src/sys/rump/net/lib/libshmif/if_shmem.c:1.81
--- src/sys/rump/net/lib/libshmif/if_shmem.c:1.80 Tue Feb 25 03:25:36 2020
+++ src/sys/rump/net/lib/libshmif/if_shmem.c Tue Feb 25 03:26:18 2020
@@ -1,4 +1,4 @@
-/* $NetBSD: if_shmem.c,v 1.80 2020/02/25 03:25:36 ozaki-r Exp $ */
+/* $NetBSD: if_shmem.c,v 1.81 2020/02/25 03:26:18 ozaki-r Exp $ */
/*
* Copyright (c) 2009, 2010 Antti Kantee. All Rights Reserved.
@@ -28,7 +28,7 @@
*/
#include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: if_shmem.c,v 1.80 2020/02/25 03:25:36 ozaki-r Exp $");
+__KERNEL_RCSID(0, "$NetBSD: if_shmem.c,v 1.81 2020/02/25 03:26:18 ozaki-r Exp $");
#include <sys/param.h>
#include <sys/atomic.h>
@@ -163,16 +163,16 @@ allocif(int unit, struct shmif_sc **scp)
uint8_t enaddr[ETHER_ADDR_LEN] = { 0xb2, 0xa0, 0x00, 0x00, 0x00, 0x00 };
struct shmif_sc *sc;
struct ifnet *ifp;
- uint32_t randnum;
+ uint64_t randnum;
int error;
- randnum = cprng_strong32();
- memcpy(&enaddr[2], &randnum, sizeof(randnum));
+ randnum = cprng_strong64();
+ memcpy(&enaddr[2], &randnum, 4);
sc = kmem_zalloc(sizeof(*sc), KM_SLEEP);
sc->sc_memfd = -1;
sc->sc_unit = unit;
- sc->sc_uid = cprng_strong64();
+ sc->sc_uid = randnum;
ifp = &sc->sc_ec.ec_if;
