[tip: x86/entry] x86/traps: Mark sync_regs() noinstr

tip-bot2 for Thomas Gleixner
2020-05-19T20:00:54Z

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@linutronix.de>
AuthorDate: Wed, 25 Mar 2020 23:47:51 +01:00
Committer: Thomas Gleixner <tglx@linutronix.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@linutronix.de>
Reviewed-by: Alexandre Chartre <alexandre.chartre@oracle.com>
Reviewed-by: Masami Hiramatsu <mhiramat@kernel.org>
Acked-by: Peter Zijlstra <peterz@infradead.org>
Acked-by: Andy Lutomirski <luto@kernel.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;