[PATCH] powerpc/64s: Minor fix for MCE TLB flush for radix

[Nicholas Piggin]

The TLB flush for radix first flushes TLB for radix configuration,
then flushes for hash configuration. The second flush is unnecessary
but does not affect correctness.

Fixes: 1a472c9dba6b9 ("powerpc/mm/radix: Add tlbflush routines")
Signed-off-by: Nicholas Piggin <npiggin at gmail.com>
---
 arch/powerpc/kernel/mce_power.c | 9 ++++++---
 1 file changed, 6 insertions(+), 3 deletions(-)

diff --git a/arch/powerpc/kernel/mce_power.c b/arch/powerpc/kernel/mce_power.c
index 763d6f58caa8..7b765aa9f2ff 100644
--- a/arch/powerpc/kernel/mce_power.c
+++ b/arch/powerpc/kernel/mce_power.c
@@ -72,10 +72,13 @@ void __flush_tlb_power8(unsigned int action)
 
 void __flush_tlb_power9(unsigned int action)
 {
-	if (radix_enabled())
-		flush_tlb_206(POWER9_TLB_SETS_RADIX, action);
+	unsigned int num_sets;
 
-	flush_tlb_206(POWER9_TLB_SETS_HASH, action);
+	if (radix_enabled())
+		num_sets = POWER9_TLB_SETS_RADIX;
+	else
+		num_sets = POWER9_TLB_SETS_HASH;
+	flush_tlb_206(num_sets, action);
 }
 
 
-- 
2.11.0