workqueue: remove unused WORK_CPU_END

WORK_CPU_END is totally unused since 4e8b22bd1a37 ("workqueue: fix
pool ID allocation leakage and remove BUILD_BUG_ON() in
init_workqueues"). It should be removed.

After it is removed, the comment "special cpu IDs" is not precise due to
there is only one special CPU ID (WORK_CPU_UNBOUND) left, so we also
change this comment to the description for WORK_CPU_UNBOUND.

tj: Minor description and comment tweaks.

Signed-off-by: Lai Jiangshan <laijs@cn.fujitsu.com>
Signed-off-by: Tejun Heo <tj@kernel.org>

diff --git a/include/linux/workqueue.h b/include/linux/workqueue.h
index b263b29..b8aee94 100644 (file)
--- a/include/linux/workqueue.h
+++ b/include/linux/workqueue.h
@@ -56,9 +56,8 @@ enum {
        WORK_NR_COLORS          = (1 << WORK_STRUCT_COLOR_BITS) - 1,
        WORK_NO_COLOR           = WORK_NR_COLORS,
 
-       /* special cpu IDs */
+       /* not bound to any CPU, prefer the local CPU */
        WORK_CPU_UNBOUND        = NR_CPUS,
-       WORK_CPU_END            = NR_CPUS + 1,
 
        /*
         * Reserve 7 bits off of pwq pointer w/ debugobjects turned off.