[PATCH v2 17/44] powerpc/64s/exception: Fix DAR load for handle_page_fault error case
From: Nicholas Piggin <npiggin@gmail.com>
Date: 2019-08-02 11:39:27
Subsystem:
linux for powerpc (32-bit and 64-bit), the rest · Maintainers:
Madhavan Srinivasan, Michael Ellerman, Linus Torvalds
This buglet goes back to before the 64/32 arch merge, but it does not seem to have had practical consequences because bad_page_fault does not use the 2nd argument, but rather regs->dar/nip. Signed-off-by: Nicholas Piggin <npiggin@gmail.com> --- arch/powerpc/kernel/exceptions-64s.S | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/arch/powerpc/kernel/exceptions-64s.S b/arch/powerpc/kernel/exceptions-64s.S
index 6b409d62d36c..f79f811ee131 100644
--- a/arch/powerpc/kernel/exceptions-64s.S
+++ b/arch/powerpc/kernel/exceptions-64s.S@@ -2336,7 +2336,7 @@ handle_page_fault: bl save_nvgprs mr r5,r3 addi r3,r1,STACK_FRAME_OVERHEAD - lwz r4,_DAR(r1) + ld r4,_DAR(r1) bl bad_page_fault b ret_from_except
--
2.22.0