From: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Date: Tue, 27 Jun 2017 15:18:26 +0200
Subject: posixtimer: init timer only with CONFIG_POSIX_TIMERS enabled
Git-repo: git://git.kernel.org/pub/scm/linux/kernel/git/rt/linux-rt-devel.git
Git-commit: 7c39c88a1fb6450813d906c1f3d8f4af5dfa4f67
Patch-mainline: Queued in subsystem maintainer repository
References: SLE Realtime Extension

In v4.11 it is possible to disable the posix timers and so we must not
attempt to initialize the task_struct on RT with !POSIX_TIMERS.
This patch does so.

Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Signed-off-by: Mike Galbraith <mgalbraith@suse.de>
---
 include/linux/init_task.h |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/include/linux/init_task.h
+++ b/include/linux/init_task.h
@@ -168,7 +168,7 @@ extern struct cred init_cred;
 # define INIT_PERF_EVENTS(tsk)
 #endif
 
-#ifdef CONFIG_PREEMPT_RT_BASE
+#if defined(CONFIG_POSIX_TIMERS) && defined(CONFIG_PREEMPT_RT_BASE)
 # define INIT_TIMER_LIST		.posix_timer_list = NULL,
 #else
 # define INIT_TIMER_LIST