[PATCH v2 02/14] powerpc/64s/exceptions: Fix in_mce accounting in unrecoverable path

[Nicholas Piggin]

Acked-by: Mahesh Salgaonkar <mah...@linux.ibm.com>
Signed-off-by: Nicholas Piggin <npig...@gmail.com>
---
 arch/powerpc/kernel/exceptions-64s.S | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/arch/powerpc/kernel/exceptions-64s.S 
b/arch/powerpc/kernel/exceptions-64s.S
index bbf3109c5cba..3322000316ab 100644
--- a/arch/powerpc/kernel/exceptions-64s.S
+++ b/arch/powerpc/kernel/exceptions-64s.S
@@ -1267,6 +1267,10 @@ END_FTR_SECTION_IFSET(CPU_FTR_HVMODE)
        andc    r10,r10,r3
        mtmsrd  r10
 
+       lhz     r12,PACA_IN_MCE(r13)
+       subi    r12,r12,1
+       sth     r12,PACA_IN_MCE(r13)
+
        /* Invoke machine_check_exception to print MCE event and panic. */
        addi    r3,r1,STACK_FRAME_OVERHEAD
        bl      machine_check_exception
-- 
2.23.0