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authorknakahara <knakahara@NetBSD.org>2021-12-21 04:09:32 +0000
committerknakahara <knakahara@NetBSD.org>2021-12-21 04:09:32 +0000
commitcf22dfa87e4bfe1b5f4096dd0c3e2f35c1812d4e (patch)
treebce6d1e7bcffd4a9908e9593fe1bd9d83448322f /sys/net/pktqueue.c
parent2e990d65c8156426001d4dd7fd21d4e64e36d619 (diff)
Fix net.*.rps_hash=toeplitz-othercpus on one CPU systems.
Diffstat (limited to 'sys/net/pktqueue.c')
-rw-r--r--sys/net/pktqueue.c7
1 files changed, 5 insertions, 2 deletions
diff --git a/sys/net/pktqueue.c b/sys/net/pktqueue.c
index 124ab3110dc..ad7c567f6b2 100644
--- a/sys/net/pktqueue.c
+++ b/sys/net/pktqueue.c
@@ -1,4 +1,4 @@
-/* $NetBSD: pktqueue.c,v 1.15 2021/12/15 07:47:22 knakahara Exp $ */
+/* $NetBSD: pktqueue.c,v 1.16 2021/12/21 04:09:32 knakahara Exp $ */
/*-
* Copyright (c) 2014 The NetBSD Foundation, Inc.
@@ -36,7 +36,7 @@
*/
#include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: pktqueue.c,v 1.15 2021/12/15 07:47:22 knakahara Exp $");
+__KERNEL_RCSID(0, "$NetBSD: pktqueue.c,v 1.16 2021/12/21 04:09:32 knakahara Exp $");
#ifdef _KERNEL_OPT
#include "opt_net_mpsafe.h"
@@ -284,6 +284,9 @@ pktq_rps_hash_toeplitz_othercpus(const struct mbuf *m)
{
uint32_t hash;
+ if (ncpu == 1)
+ return 0;
+
hash = pktq_rps_hash_toeplitz(m);
hash %= ncpu - 1;
if (hash >= cpu_index(curcpu()))