x86/entry/64: Remove error code clearing from #DB and #MCE ASM stub

The C entry points do not expect an error code.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Alexandre Chartre <alexandre.chartre@oracle.com>
Acked-by: Peter Zijlstra <peterz@infradead.org>
Acked-by: Andy Lutomirski <luto@kernel.org>
Link: https://lkml.kernel.org/r/20200505135314.992621707@linutronix.de

diff --git a/arch/x86/entry/entry_64.S b/arch/x86/entry/entry_64.S
index f47629a..eeb4285 100644 (file)
--- a/arch/x86/entry/entry_64.S
+++ b/arch/x86/entry/entry_64.S
@@ -642,7 +642,6 @@ SYM_CODE_START(\asmsym)
        .endif
 
        movq    %rsp, %rdi              /* pt_regs pointer */
-       xorl    %esi, %esi              /* Clear the error code */
 
        .if \vector == X86_TRAP_DB
                subq    $DB_STACK_OFFSET, CPU_TSS_IST(IST_INDEX_DB)