x86/hotplug: Remove incorrect comment about mwait_play_dead()

The comment that says mwait_play_dead() returns only on failure is a bit
misleading because mwait_play_dead() could actually return for valid
reasons (such as mwait not being supported by the platform) that do not
indicate a failure of the CPU offline operation. So, remove the comment.

Suggested-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Srivatsa S. Bhat (VMware) <srivatsa@csail.mit.edu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Link: https://lore.kernel.org/r/20230128003751.141317-1-srivatsa@csail.mit.edu

diff --git a/arch/x86/kernel/smpboot.c b/arch/x86/kernel/smpboot.c
index 55cad72715d991bd18bf0dfb7aa3bd757f4474f7..9013bb28255a13da21afdf291d4f5f04c0a5f923 100644 (file)
--- a/arch/x86/kernel/smpboot.c
+++ b/arch/x86/kernel/smpboot.c
@@ -1833,7 +1833,7 @@ void native_play_dead(void)
        play_dead_common();
        tboot_shutdown(TB_SHUTDOWN_WFS);
 
-       mwait_play_dead();      /* Only returns on failure */
+       mwait_play_dead();
        if (cpuidle_play_dead())
                hlt_play_dead();
 }