powerpc/book3s: Don't clear MSR_RI in hmi handler.

In HMI interrupt handler we don't touch SRR0/SRR1, instead we touch
HSRR0/HSRR1. Hence we don't need to clear MSR_RI bit.

Signed-off-by: Mahesh Salgaonkar <mahesh@linux.vnet.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>

diff --git a/arch/powerpc/kernel/exceptions-64s.S b/arch/powerpc/kernel/exceptions-64s.S
index 050f79a..72e783e 100644 (file)
--- a/arch/powerpc/kernel/exceptions-64s.S
+++ b/arch/powerpc/kernel/exceptions-64s.S
@@ -1270,11 +1270,6 @@ hmi_exception_early:
        addi    r3,r1,STACK_FRAME_OVERHEAD
        bl      hmi_exception_realmode
        /* Windup the stack. */
-       /* Clear MSR_RI before setting SRR0 and SRR1. */
-       li      r0,MSR_RI
-       mfmsr   r9                      /* get MSR value */
-       andc    r9,r9,r0
-       mtmsrd  r9,1                    /* Clear MSR_RI */
        /* Move original HSRR0 and HSRR1 into the respective regs */
        ld      r9,_MSR(r1)
        mtspr   SPRN_HSRR1,r9