[PATCH] workqueue: Fix build on PowerPC

[Anton Blanchard]

Fix the following compile error on PowerPC:

include/linux/workqueue.h:66: error: âNR_CPUSâ undeclared here (not in a function)

Signed-off-by: Anton Blanchard <anton@xxxxxxxxx>
---

diff --git a/include/linux/workqueue.h b/include/linux/workqueue.h
index 66573b8..5d1d9be 100644
--- a/include/linux/workqueue.h
+++ b/include/linux/workqueue.h
@@ -9,6 +9,7 @@
 #include <linux/linkage.h>
 #include <linux/bitops.h>
 #include <linux/lockdep.h>
+#include <linux/threads.h>
 #include <asm/atomic.h>
 
 struct workqueue_struct;
--
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