[tip:smp/hotplug] hexagon: Use generic idle thread allocation

From: tip-bot for Thomas Gleixner
Date: Sat Apr 28 2012 - 05:11:13 EST


Commit-ID: 3b0132ce4fff68b30abdfcb74cffc283af711076
Gitweb: http://git.kernel.org/tip/3b0132ce4fff68b30abdfcb74cffc283af711076
Author: Thomas Gleixner <tglx@xxxxxxxxxxxxx>
AuthorDate: Fri, 20 Apr 2012 13:05:51 +0000
Committer: Thomas Gleixner <tglx@xxxxxxxxxxxxx>
CommitDate: Thu, 26 Apr 2012 12:06:11 +0200

hexagon: Use generic idle thread allocation

Signed-off-by: Thomas Gleixner <tglx@xxxxxxxxxxxxx>
Cc: Peter Zijlstra <peterz@xxxxxxxxxxxxx>
Cc: Rusty Russell <rusty@xxxxxxxxxxxxxxx>
Cc: Paul E. McKenney <paulmck@xxxxxxxxxxxxxxxxxx>
Cc: Srivatsa S. Bhat <srivatsa.bhat@xxxxxxxxxxxxxxxxxx>
Acked-and-tested-by: Richard Kuo <rkuo@xxxxxxxxxxxxxx>
Link: http://lkml.kernel.org/r/20120420124557.581762105@xxxxxxxxxxxxx
---
arch/hexagon/Kconfig | 1 +
arch/hexagon/kernel/smp.c | 11 ++---------
2 files changed, 3 insertions(+), 9 deletions(-)

diff --git a/arch/hexagon/Kconfig b/arch/hexagon/Kconfig
index 9059e39..d2e4a33 100644
--- a/arch/hexagon/Kconfig
+++ b/arch/hexagon/Kconfig
@@ -27,6 +27,7 @@ config HEXAGON
select HAVE_ARCH_TRACEHOOK
select NO_IOPORT
select GENERIC_IOMAP
+ select GENERIC_SMP_IDLE_THREAD
# mostly generic routines, with some accelerated ones
---help---
Qualcomm Hexagon is a processor architecture designed for high
diff --git a/arch/hexagon/kernel/smp.c b/arch/hexagon/kernel/smp.c
index 93e77e2..f726462 100644
--- a/arch/hexagon/kernel/smp.c
+++ b/arch/hexagon/kernel/smp.c
@@ -196,18 +196,11 @@ void __cpuinit start_secondary(void)
* maintains control until "cpu_online(cpu)" is set.
*/

-int __cpuinit __cpu_up(unsigned int cpu, struct task_struct *tidle)
+int __cpuinit __cpu_up(unsigned int cpu, struct task_struct *idle)
{
- struct task_struct *idle;
- struct thread_info *thread;
+ struct thread_info *thread = (struct thread_info *)idle->stack;
void *stack_start;

- /* Create new init task for the CPU */
- idle = fork_idle(cpu);
- if (IS_ERR(idle))
- panic(KERN_ERR "fork_idle failed\n");
-
- thread = (struct thread_info *)idle->stack;
thread->cpu = cpu;

/* Boot to the head. */
--
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