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powerpc/numa: Suppress "VPHN is not supported" messages

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[ Upstream commit 437ccdc8ce629470babdda1a7086e2f477048cbd ]

When VPHN function is not supported and during cpu hotplug event,
kernel prints message 'VPHN function not supported. Disabling
polling...'. Currently it prints on every hotplug event, it floods
dmesg when a KVM guest tries to hotplug huge number of vcpus, let's
just print once and suppress further kernel prints.

Signed-off-by: Satheesh Rajendran <sathnaga@linux.vnet.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Satheesh Rajendran 2018-11-08 10:47:56 +05:30 committed by Greg Kroah-Hartman
parent 281a4f41c6
commit 2a968a0241
1 changed files with 1 additions and 1 deletions
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2
arch/powerpc/mm/numa.c
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@ -1261,7 +1261,7 @@ static long vphn_get_associativity(unsigned long cpu,
switch (rc) {
case H_FUNCTION:
printk(KERN_INFO
printk_once(KERN_INFO
"VPHN is not supported. Disabling polling...\n");
stop_topology_update();
break;