Re: [PATCH v2 01/12] powerpc/64s/exceptions: Fix in_mce accounting in unrecoverable path

2020-03-26 Thread Mahesh J Salgaonkar 
On 2020-03-25 20:33:59 Wed, Nicholas Piggin wrote:
> Signed-off-by: Nicholas Piggin 
> ---
>  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 6a936c9199d6..67cbcb2d0c7f 100644
> --- a/arch/powerpc/kernel/exceptions-64s.S
> +++ b/arch/powerpc/kernel/exceptions-64s.S
> @@ -1335,6 +1335,10 @@ END_FTR_SECTION_IFSET(CPU_FTR_HVMODE)
>   andcr10,r10,r3
>   mtmsrd  r10
> 
> + lhz r12,PACA_IN_MCE(r13)
> + subir12,r12,1
> + sth r12,PACA_IN_MCE(r13)
> +

Acked-by: Mahesh Salgaonkar 

Thanks,
-Mahesh.

[PATCH v2 01/12] powerpc/64s/exceptions: Fix in_mce accounting in unrecoverable path

2020-03-25 Thread Nicholas Piggin 
Signed-off-by: Nicholas Piggin 
---
 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 6a936c9199d6..67cbcb2d0c7f 100644
--- a/arch/powerpc/kernel/exceptions-64s.S
+++ b/arch/powerpc/kernel/exceptions-64s.S
@@ -1335,6 +1335,10 @@ END_FTR_SECTION_IFSET(CPU_FTR_HVMODE)
andcr10,r10,r3
mtmsrd  r10
 
+   lhz r12,PACA_IN_MCE(r13)
+   subir12,r12,1
+   sth r12,PACA_IN_MCE(r13)
+
/* Invoke machine_check_exception to print MCE event and panic. */
addir3,r1,STACK_FRAME_OVERHEAD
bl  machine_check_exception
-- 
2.23.0