From d77290507ab2ac691d50389e255ebd11a6cbc35a Mon Sep 17 00:00:00 2001 From: Thomas Gleixner Date: Tue, 25 Feb 2020 23:16:30 +0100 Subject: x86/entry/32: Convert IRET exception to IDTENTRY_SW Convert the IRET exception handler to IDTENTRY_SW. This is slightly different than the conversions of hardware exceptions as the IRET exception is invoked via an exception table when IRET faults. So it just uses the IDTENTRY_SW mechanism for consistency. It does not emit ASM code as it does not fit the other idtentry exceptions. - Implement the C entry point with DEFINE_IDTENTRY_SW() which maps to DEFINE_IDTENTRY() - Fixup the XEN/PV code - Remove the old prototypes - Remove the RCU warning as the new entry macro ensures correctness No functional change. Signed-off-by: Thomas Gleixner Reviewed-by: Alexandre Chartre Acked-by: Peter Zijlstra Acked-by: Andy Lutomirski Link: https://lkml.kernel.org/r/20200505134906.128769226@linutronix.de --- arch/x86/xen/xen-asm_32.S | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'arch/x86/xen') diff --git a/arch/x86/xen/xen-asm_32.S b/arch/x86/xen/xen-asm_32.S index 2712e9155306..812ff01e4e34 100644 --- a/arch/x86/xen/xen-asm_32.S +++ b/arch/x86/xen/xen-asm_32.S @@ -117,7 +117,7 @@ iret_restore_end: 1: iret xen_iret_end_crit: - _ASM_EXTABLE(1b, iret_exc) + _ASM_EXTABLE(1b, asm_iret_error) hyper_iret: /* put this out of line since its very rarely used */ -- cgit v1.2.3