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powerpc/64s/exceptions: Fix in_mce accounting in unrecoverable path 

Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Acked-by: Mahesh Salgaonkar <mahesh@linux.ibm.com>
Link: https://lore.kernel.org/r/20200508043408.886394-3-npiggin@gmail.com
This commit is contained in:
Nicholas Piggin 2020-05-08 14:33:54 +10:00 committed by Michael Ellerman
parent 8a5054d8cb
commit ac2a2a1417
1 changed files with 4 additions and 0 deletions
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arch/powerpc/kernel/exceptions-64s.S
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@ -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