linux-kernel - [tip: x86/entry] x86/traps: Mark sync

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Date:   Tue, 19 May 2020 19:58:40 -0000
From:   "tip-bot2 for Thomas Gleixner" <tip-bot2@...utronix.de>
To:     linux-tip-commits@...r.kernel.org
Cc:     Thomas Gleixner <tglx@...utronix.de>,
        Alexandre Chartre <alexandre.chartre@...cle.com>,
        Masami Hiramatsu <mhiramat@...nel.org>,
        Peter Zijlstra <peterz@...radead.org>,
        Andy Lutomirski <luto@...nel.org>, x86 <x86@...nel.org>,
        LKML <linux-kernel@...r.kernel.org>
Subject: [tip: x86/entry] x86/traps: Mark sync_regs() noinstr

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

Commit-ID:     2c14e64ca887fe55ba958376ef1e2d08e810b5e3
Gitweb:        https://git.kernel.org/tip/2c14e64ca887fe55ba958376ef1e2d08e810b5e3
Author:        Thomas Gleixner <tglx@...utronix.de>
AuthorDate:    Wed, 25 Mar 2020 23:47:51 +01:00
Committer:     Thomas Gleixner <tglx@...utronix.de>
CommitterDate: Tue, 19 May 2020 16:03:53 +02:00

x86/traps: Mark sync_regs() noinstr

Replace the notrace and NOKPROBE annotations with noinstr.

Signed-off-by: Thomas Gleixner <tglx@...utronix.de>
Reviewed-by: Alexandre Chartre <alexandre.chartre@...cle.com>
Reviewed-by: Masami Hiramatsu <mhiramat@...nel.org>
Acked-by: Peter Zijlstra <peterz@...radead.org>
Acked-by: Andy Lutomirski <luto@...nel.org>
Link: https://lkml.kernel.org/r/20200505134903.439765290@linutronix.de


---
 arch/x86/kernel/traps.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/arch/x86/kernel/traps.c b/arch/x86/kernel/traps.c
index b2b3656..adcc623 100644
--- a/arch/x86/kernel/traps.c
+++ b/arch/x86/kernel/traps.c
@@ -564,14 +564,13 @@ NOKPROBE_SYMBOL(do_int3);
  * to switch to the normal thread stack if the interrupted code was in
  * user mode. The actual stack switch is done in entry_64.S
  */
-asmlinkage __visible notrace struct pt_regs *sync_regs(struct pt_regs *eregs)
+asmlinkage __visible noinstr struct pt_regs *sync_regs(struct pt_regs *eregs)
 {
 	struct pt_regs *regs = (struct pt_regs *)this_cpu_read(cpu_current_top_of_stack) - 1;
 	if (regs != eregs)
 		*regs = *eregs;
 	return regs;
 }
-NOKPROBE_SYMBOL(sync_regs);
 
 struct bad_iret_stack {
 	void *error_entry_ret;