[PATCH 07/10] powerpc/64e/interrupt: handle bad_page_fault in C

[Nicholas Piggin]

Excerpts from Christophe Leroy's message of March 16, 2021 12:07 am:
> 
> 
> Le 15/03/2021 à 04:17, Nicholas Piggin a écrit :
>> With non-volatile registers saved on interrupt, bad_page_fault
>> can now be called by do_page_fault.
>> 
>> Signed-off-by: Nicholas Piggin <npiggin at gmail.com>
>> ---
>>   arch/powerpc/kernel/exceptions-64e.S | 6 ------
>>   arch/powerpc/mm/fault.c              | 5 +----
>>   2 files changed, 1 insertion(+), 10 deletions(-)
>> 
>> diff --git a/arch/powerpc/kernel/exceptions-64e.S b/arch/powerpc/kernel/exceptions-64e.S
>> index a059ab3542c2..b08c84e0fa56 100644
>> --- a/arch/powerpc/kernel/exceptions-64e.S
>> +++ b/arch/powerpc/kernel/exceptions-64e.S
>> @@ -937,12 +937,6 @@ storage_fault_common:
>>   	ld	r14,PACA_EXGEN+EX_R14(r13)
>>   	ld	r15,PACA_EXGEN+EX_R15(r13)
>>   	bl	do_page_fault
>> -	cmpdi	r3,0
>> -	bne-	1f
>> -	b	interrupt_return
>> -	mr	r4,r3
>> -	addi	r3,r1,STACK_FRAME_OVERHEAD
>> -	bl	__bad_page_fault
> 
> Then __bad_page_fault() can be static now.

Good point, I'll change it.

Thanks,
Nick