Messages in this thread Patch in this message | | | From | Sudip Mukherjee <> | Subject | [PATCH] Revert "kernel/stop_machine.c: remove CONFIG_SMP dependencies" | Date | Fri, 18 Dec 2015 15:35:55 +0530 |
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This reverts commit 64dab25b058c12f935794cb239089303bda7dbc1.
CONFIG_SMP dependency is needed for some arch like tile, tilegx and m32r. They use stop_machine() but they donot have HOTPLUG_CPU and as a result their builds are failing with "undefined symbol 'stop_machine'".
Cc: Chris Wilson <chris@chris-wilson.co.uk> Cc: Ingo Molnar <mingo@kernel.org> Signed-off-by: Sudip Mukherjee <sudip@vectorindia.org> ---
tile build at: https://travis-ci.org/sudipm-mukherjee/parport/jobs/97618549
tilegx build at: https://travis-ci.org/sudipm-mukherjee/parport/jobs/97618550
m32r build at: https://travis-ci.org/sudipm-mukherjee/parport/jobs/97618542
kernel/stop_machine.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/kernel/stop_machine.c b/kernel/stop_machine.c index b07adef..edb6de4 100644 --- a/kernel/stop_machine.c +++ b/kernel/stop_machine.c @@ -529,7 +529,7 @@ static int __init cpu_stop_init(void) } early_initcall(cpu_stop_init); -#ifdef CONFIG_HOTPLUG_CPU +#if defined(CONFIG_SMP) || defined(CONFIG_HOTPLUG_CPU) static int __stop_machine(cpu_stop_fn_t fn, void *data, const struct cpumask *cpus) { @@ -629,4 +629,4 @@ int stop_machine_from_inactive_cpu(cpu_stop_fn_t fn, void *data, return ret ?: done.ret; } -#endif /* CONFIG_HOTPLUG_CPU */ +#endif /* CONFIG_SMP || CONFIG_HOTPLUG_CPU */ -- 1.9.1
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