[PATCH 5.10 365/717] powerpc/pseries/hibernation: remove redundant cacheinfo update

From: Greg Kroah-Hartman
Date: Mon Dec 28 2020 - 09:17:13 EST


From: Nathan Lynch <nathanl@xxxxxxxxxxxxx>

[ Upstream commit b866459489fe8ef0e92cde3cbd6bbb1af6c4e99b ]

Partitions with cache nodes in the device tree can encounter the
following warning on resume:

CPU 0 already accounted in PowerPC,POWER9@0(Data)
WARNING: CPU: 0 PID: 3177 at arch/powerpc/kernel/cacheinfo.c:197 cacheinfo_cpu_online+0x640/0x820

These calls to cacheinfo_cpu_offline/online have been redundant since
commit e610a466d16a ("powerpc/pseries/mobility: rebuild cacheinfo
hierarchy post-migration").

Fixes: e610a466d16a ("powerpc/pseries/mobility: rebuild cacheinfo hierarchy post-migration")
Signed-off-by: Nathan Lynch <nathanl@xxxxxxxxxxxxx>
Signed-off-by: Michael Ellerman <mpe@xxxxxxxxxxxxxx>
Link: https://lore.kernel.org/r/20201207215200.1785968-25-nathanl@xxxxxxxxxxxxx
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
---
arch/powerpc/platforms/pseries/suspend.c | 3 ---
1 file changed, 3 deletions(-)

diff --git a/arch/powerpc/platforms/pseries/suspend.c b/arch/powerpc/platforms/pseries/suspend.c
index 3eaa9d59dc7ab..64b36a93c33a6 100644
--- a/arch/powerpc/platforms/pseries/suspend.c
+++ b/arch/powerpc/platforms/pseries/suspend.c
@@ -13,7 +13,6 @@
#include <asm/mmu.h>
#include <asm/rtas.h>
#include <asm/topology.h>
-#include "../../kernel/cacheinfo.h"

static u64 stream_id;
static struct device suspend_dev;
@@ -78,9 +77,7 @@ static void pseries_suspend_enable_irqs(void)
* Update configuration which can be modified based on device tree
* changes during resume.
*/
- cacheinfo_cpu_offline(smp_processor_id());
post_mobility_fixup();
- cacheinfo_cpu_online(smp_processor_id());
}

/**
--
2.27.0