linux-kernel - [tip: x86/entry] x86/entry: Remove the TRACE

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Date:   Wed, 27 May 2020 08:11:43 -0000
From:   "tip-bot2 for Thomas Gleixner" <tip-bot2@...utronix.de>
To:     linux-tip-commits@...r.kernel.org
Cc:     Thomas Gleixner <tglx@...utronix.de>,
        Ingo Molnar <mingo@...nel.org>,
        Andy Lutomirski <luto@...nel.org>, x86 <x86@...nel.org>,
        LKML <linux-kernel@...r.kernel.org>
Subject: [tip: x86/entry] x86/entry: Remove the TRACE_IRQS cruft

The following commit has been merged into the x86/entry branch of tip:

Commit-ID:     5a7462b1f9c19312da0e489b859184cc88229bad
Gitweb:        https://git.kernel.org/tip/5a7462b1f9c19312da0e489b859184cc88229bad
Author:        Thomas Gleixner <tglx@...utronix.de>
AuthorDate:    Thu, 21 May 2020 22:05:52 +02:00
Committer:     Ingo Molnar <mingo@...nel.org>
CommitterDate: Tue, 26 May 2020 19:06:29 +02:00

x86/entry: Remove the TRACE_IRQS cruft

No more users.

Signed-off-by: Thomas Gleixner <tglx@...utronix.de>
Signed-off-by: Ingo Molnar <mingo@...nel.org>
Acked-by: Andy Lutomirski <luto@...nel.org>
Link: https://lore.kernel.org/r/20200521202120.523289762@linutronix.de
---
 arch/x86/entry/entry_64.S       | 13 -------------
 arch/x86/entry/thunk_64.S       |  9 +--------
 arch/x86/include/asm/irqflags.h | 10 ----------
 3 files changed, 1 insertion(+), 31 deletions(-)

diff --git a/arch/x86/entry/entry_64.S b/arch/x86/entry/entry_64.S
index 2566554..265ff97 100644
--- a/arch/x86/entry/entry_64.S
+++ b/arch/x86/entry/entry_64.S
@@ -53,19 +53,6 @@ SYM_CODE_START(native_usergs_sysret64)
 SYM_CODE_END(native_usergs_sysret64)
 #endif /* CONFIG_PARAVIRT */
 
-.macro TRACE_IRQS_FLAGS flags:req
-#ifdef CONFIG_TRACE_IRQFLAGS
-	btl	$9, \flags		/* interrupts off? */
-	jnc	1f
-	TRACE_IRQS_ON
-1:
-#endif
-.endm
-
-.macro TRACE_IRQS_IRETQ
-	TRACE_IRQS_FLAGS EFLAGS(%rsp)
-.endm
-
 /*
  * 64-bit SYSCALL instruction entry. Up to 6 arguments in registers.
  *
diff --git a/arch/x86/entry/thunk_64.S b/arch/x86/entry/thunk_64.S
index 34f980c..ccd3287 100644
--- a/arch/x86/entry/thunk_64.S
+++ b/arch/x86/entry/thunk_64.S
@@ -3,7 +3,6 @@
  * Save registers before calling assembly functions. This avoids
  * disturbance of register allocation in some inline assembly constructs.
  * Copyright 2001,2002 by Andi Kleen, SuSE Labs.
- * Added trace_hardirqs callers - Copyright 2007 Steven Rostedt, Red Hat, Inc.
  */
 #include <linux/linkage.h>
 #include "calling.h"
@@ -37,11 +36,6 @@ SYM_FUNC_END(\name)
 	_ASM_NOKPROBE(\name)
 	.endm
 
-#ifdef CONFIG_TRACE_IRQFLAGS
-	THUNK trace_hardirqs_on_thunk,trace_hardirqs_on_caller,1
-	THUNK trace_hardirqs_off_thunk,trace_hardirqs_off_caller,1
-#endif
-
 #ifdef CONFIG_PREEMPTION
 	THUNK preempt_schedule_thunk, preempt_schedule
 	THUNK preempt_schedule_notrace_thunk, preempt_schedule_notrace
@@ -49,8 +43,7 @@ SYM_FUNC_END(\name)
 	EXPORT_SYMBOL(preempt_schedule_notrace_thunk)
 #endif
 
-#if defined(CONFIG_TRACE_IRQFLAGS) \
- || defined(CONFIG_PREEMPTION)
+#ifdef CONFIG_PREEMPTION
 SYM_CODE_START_LOCAL_NOALIGN(.L_restore)
 	popq %r11
 	popq %r10
diff --git a/arch/x86/include/asm/irqflags.h b/arch/x86/include/asm/irqflags.h
index e00f064..8ddff8d 100644
--- a/arch/x86/include/asm/irqflags.h
+++ b/arch/x86/include/asm/irqflags.h
@@ -172,14 +172,4 @@ static inline int arch_irqs_disabled(void)
 }
 #endif /* !__ASSEMBLY__ */
 
-#ifdef __ASSEMBLY__
-#ifdef CONFIG_TRACE_IRQFLAGS
-#  define TRACE_IRQS_ON		call trace_hardirqs_on_thunk;
-#  define TRACE_IRQS_OFF	call trace_hardirqs_off_thunk;
-#else
-#  define TRACE_IRQS_ON
-#  define TRACE_IRQS_OFF
-#endif
-#endif /* __ASSEMBLY__ */
-
 #endif