Commit df7ccaff authored Feb 25, 2020 by Thomas Gleixner

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

parent 2bbc68f8

arch/x86/entry/entry_64.S

+0 −1

Original line number	Diff line number	Diff line
		@@ -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)

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