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

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Message-Id: <1465472919-10499-1-git-send-email-joonas.lahtinen@linux.intel.com>
Date:	Thu,  9 Jun 2016 14:48:39 +0300
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>,
	Ingo Molnar <mingo@...nel.org>,
	Peter Zijlstra <peterz@...radead.org>,
	"Gautham R. Shenoy" <ego@...ux.vnet.ibm.com>,
	intel-gfx@...ts.freedesktop.org, trivial@...nel.org
Subject: [PATCH] kernel/cpu: Distinct 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: Ingo Molnar <mingo@...nel.org>
Cc: Peter Zijlstra <peterz@...radead.org>
Cc: Gautham R. Shenoy <ego@...ux.vnet.ibm.com>
Cc: intel-gfx@...ts.freedesktop.org
Cc: trivial@...nel.org
Acked-by: Gautham R. Shenoy <ego@...ux.vnet.ibm.com>
Signed-off-by: Joonas Lahtinen <joonas.lahtinen@...ux.intel.com>
---
This time CC'ing trivial@...nel.org too in the hopes of finally getting this in.
---
 kernel/cpu.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/kernel/cpu.c b/kernel/cpu.c
index d948e44..d74199d 100644
--- a/kernel/cpu.c
+++ b/kernel/cpu.c
@@ -155,7 +155,7 @@ 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
 };
 
-- 
2.5.5