arm: oxnas: remove non-necessary flush_cache_all()
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Message ID 20180507154215.45a9348f@xhacker.debian
State New
Headers show

Commit Message

Jisheng Zhang May 7, 2018, 7:42 a.m. UTC
I believe the flush_cache_all() after scu_enable() is to "Ensure that
the data accessed by CPU0 before the SCU was initialised is visible
to the other CPUs." as commented in scu_enable(). So flush_cache_all()
here is a duplication of the one in scu_enable(), remove it.

Signed-off-by: Jisheng Zhang <Jisheng.Zhang@synaptics.com>
---
 arch/arm/mach-oxnas/platsmp.c | 1 -
 1 file changed, 1 deletion(-)

Patch
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diff --git a/arch/arm/mach-oxnas/platsmp.c b/arch/arm/mach-oxnas/platsmp.c
index 442cc8a2f7dc..1a8e1e9fc222 100644
--- a/arch/arm/mach-oxnas/platsmp.c
+++ b/arch/arm/mach-oxnas/platsmp.c
@@ -85,7 +85,6 @@  static void __init ox820_smp_prepare_cpus(unsigned int max_cpus)
 		goto unmap_scu;
 
 	scu_enable(scu_base);
-	flush_cache_all();
 
 unmap_scu:
 	iounmap(scu_base);