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From: Thomas Gleixner <tglx@linutronix.de>
To: LKML <linux-kernel@vger.kernel.org>
Cc: x86@kernel.org, Steven Rostedt <rostedt@goodmis.org>,
	Brian Gerst <brgerst@gmail.com>, Juergen Gross <jgross@suse.com>,
	Paolo Bonzini <pbonzini@redhat.com>,
	Arnd Bergmann <arnd@arndb.de>
Subject: [patch 12/16] x86/entry/64: Simplify idtentry_body
Date: Tue, 25 Feb 2020 23:33:33 +0100	[thread overview]
Message-ID: <20200225224145.339201840@linutronix.de> (raw)
In-Reply-To: 20200225223321.231477305@linutronix.de

All C functions which do not have an error code have been converted to the
new IDTENTRY interface which does not expect an error code in the
arguments. Spare the XORL.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/entry/entry_64.S |    2 --
 1 file changed, 2 deletions(-)

--- a/arch/x86/entry/entry_64.S
+++ b/arch/x86/entry/entry_64.S
@@ -525,8 +525,6 @@ SYM_CODE_END(spurious_entries_start)
 	.if \has_error_code == 1
 		movq	ORIG_RAX(%rsp), %rsi	/* get error code into 2nd argument*/
 		movq	$-1, ORIG_RAX(%rsp)	/* no syscall to restart */
-	.else
-		xorl	%esi, %esi		/* Clear the error code */
 	.endif
 
 	.if \vector == X86_TRAP_PF


  parent reply	other threads:[~2020-02-25 23:26 UTC|newest]

Thread overview: 31+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-02-25 22:33 [patch 00/16] x86/entry: Consolidation - Part IV Thomas Gleixner
2020-02-25 22:33 ` [patch 01/16] x86/entry: Provide IDTENTRY_IST Thomas Gleixner
2020-02-25 22:33 ` [patch 02/16] x86/entry: Convert Machine Check to IDTENTRY_IST Thomas Gleixner
2020-02-25 22:33 ` [patch 03/16] x86/idtentry: Provide IDTENTRY_XEN for XEN/PV Thomas Gleixner
2020-02-25 22:33 ` [patch 04/16] x86/entry: Convert NMI to IDTENTRY_NMI Thomas Gleixner
2020-02-25 22:33 ` [patch 05/16] x86/entry: Convert Debug exception to IDTENTRY_DB Thomas Gleixner
2020-02-25 22:33 ` [patch 06/16] x86/entry/64: Remove error code clearing from #DB and #MCE ASM stub Thomas Gleixner
2020-02-25 22:33 ` [patch 07/16] x86/entry: Provide IDTRENTRY_NOIST variants for #DB and #MC Thomas Gleixner
2020-02-25 22:33 ` [patch 08/16] x86/entry: Implement user mode C entry points for #DB and #MCE Thomas Gleixner
2020-02-25 22:33 ` [patch 09/16] x86/entry: Provide IDTENTRY_DF Thomas Gleixner
2020-02-25 22:33 ` [patch 10/16] x86/entry: Convert double fault exception to IDTENTRY_DF Thomas Gleixner
2020-02-25 22:33 ` [patch 11/16] x86/entry: Switch XEN/PV hypercall entry to IDTENTRY Thomas Gleixner
2020-02-25 22:33 ` Thomas Gleixner [this message]
2020-02-25 22:33 ` [patch 13/16] x86/entry: Move irqflags and context tracking to C for simple idtentries Thomas Gleixner
2020-02-26  8:05   ` Peter Zijlstra
2020-02-26  9:20     ` Peter Zijlstra
2020-02-26 15:11       ` Andy Lutomirski
2020-02-26 16:28         ` Peter Zijlstra
2020-02-26 19:15           ` Andy Lutomirski
2020-02-26 20:25             ` Thomas Gleixner
2020-02-26 17:05     ` Frederic Weisbecker
2020-02-26 17:09       ` Andy Lutomirski
2020-02-26 17:17         ` Frederic Weisbecker
2020-02-25 22:33 ` [patch 14/16] x86/entry: Provide IDTENTRY_CR2 Thomas Gleixner
2020-02-25 22:33 ` [patch 15/16] x86/entry: Switch page fault exceptions to idtentry_simple Thomas Gleixner
2020-03-05 21:51   ` Andy Lutomirski
2020-03-05 23:02     ` Thomas Gleixner
2020-02-25 22:33 ` [patch 16/16] x86/entry: Disable interrupts in IDTENTRY Thomas Gleixner
2020-02-26  9:23   ` Peter Zijlstra
2020-02-26 20:21     ` Thomas Gleixner
2020-02-27  8:41       ` Peter Zijlstra

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