linux-kernel - [PATCH] kernel/cpu: Distinctive name for cpu_hotplug.dep

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Date:	Wed,  3 Feb 2016 16:24:28 +0200
From:	Joonas Lahtinen <joonas.lahtinen@...ux.intel.com>
To:	Linux kernel development <linux-kernel@...r.kernel.org>
Cc:	Joonas Lahtinen <joonas.lahtinen@...ux.intel.com>,
	"Gautham R. Shenoy" <ego@...ux.vnet.ibm.com>,
	"Rafael J. Wysocki" <rafael.j.wysocki@...el.com>,
	Intel graphics driver community testing & development 
	<intel-gfx@...ts.freedesktop.org>
Subject: [PATCH] kernel/cpu: Distinctive name for cpu_hotplug.dep_map

Use distinctive name for cpu_hotplug.dep_map to avoid the actual
cpu_hotplug.lock appearing as cpu_hotplug.lock#2 in lockdep splats.

Cc: Gautham R. Shenoy <ego@...ux.vnet.ibm.com>
Cc: Rafael J. Wysocki <rafael.j.wysocki@...el.com>
Cc: Intel graphics driver community testing & development <intel-gfx@...ts.freedesktop.org>
Signed-off-by: Joonas Lahtinen <joonas.lahtinen@...ux.intel.com>
---
 kernel/cpu.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/kernel/cpu.c b/kernel/cpu.c
index 5b9d396..6a13f24 100644
--- a/kernel/cpu.c
+++ b/kernel/cpu.c
@@ -78,7 +78,7 @@ static struct {
 	.wq = __WAIT_QUEUE_HEAD_INITIALIZER(cpu_hotplug.wq),
 	.lock = __MUTEX_INITIALIZER(cpu_hotplug.lock),
 #ifdef CONFIG_DEBUG_LOCK_ALLOC
-	.dep_map = {.name = "cpu_hotplug.lock" },
+	.dep_map = STATIC_LOCKDEP_MAP_INIT("cpu_hotplug.dep_map", &cpu_hotplug.dep_map),
 #endif
 };
 
-- 
2.5.0