linux-kernel - [PATCH] arch/x86/kernel/cpu/common.c

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Date:   Thu, 08 Aug 2019 14:18:55 -0400
From:   "Valdis Klētnieks" <valdis.kletnieks@...edu>
To:     Thomas Gleixner <tglx@...utronix.de>,
        Ingo Molnar <mingo@...hat.com>
cc:     linux-kernel@...r.kernel.org, x86@...nel.org
Subject: [PATCH] arch/x86/kernel/cpu/common.c - add proper prototypes

When building withW=1, we get a warning..

  CC      arch/x86/kernel/cpu/common.o
arch/x86/kernel/cpu/common.c:1952:6: warning: no previous prototype for 'arch_smt_update' [-Wmissing-prototypes]
 1952 | void arch_smt_update(void)
      |      ^~~~~~~~~~~~~~~

Provide the proper #include so the prototype is found.

Signed-off-by: Valdis Kletnieks <valdis.kletnieks@...edu>

diff --git a/arch/x86/kernel/cpu/common.c b/arch/x86/kernel/cpu/common.c
index e0489d2860d3..b8ed6d8e55df 100644
--- a/arch/x86/kernel/cpu/common.c
+++ b/arch/x86/kernel/cpu/common.c
@@ -14,6 +14,7 @@
 #include <linux/sched/mm.h>
 #include <linux/sched/clock.h>
 #include <linux/sched/task.h>
+#include <linux/sched/smt.h>
 #include <linux/init.h>
 #include <linux/kprobes.h>
 #include <linux/kgdb.h>