[patch 09/10] x86/entry/entry_32: Route int3 through common_exception

Thomas Gleixner
2020-02-25T23:25:48Z

int3 is not using the common_exception path for purely historical reasons,
but there is no reason to keep it the only exception which is different.

Make it use common_exception so the upcoming changes to autogenerate the
entry stubs do not have to special case int3.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
arch/x86/entry/entry_32.S | 10 ++--------
1 file changed, 2 insertions(+), 8 deletions(-)

--- a/arch/x86/entry/entry_32.S
+++ b/arch/x86/entry/entry_32.S
@@ -1683,14 +1683,8 @@ SYM_CODE_END(nmi)
SYM_CODE_START(int3)
ASM_CLAC
pushl $0
-
- SAVE_ALL switch_stacks=1
- ENCODE_FRAME_POINTER
- TRACE_IRQS_OFF
- xorl %edx, %edx # zero error code
- movl %esp, %eax # pt_regs pointer
- call do_int3
- jmp ret_from_exception
+ pushl $do_int3
+ jmp common_exception
SYM_CODE_END(int3)

SYM_CODE_START(general_protection)