linux-kernel - [PATCH v2 2/4] lockdep: make MAX_LOCKDEP

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Date:   Fri, 16 Sep 2016 18:02:43 +0200
From:   Bartosz Golaszewski <bgolaszewski@...libre.com>
To:     Linus Walleij <linus.walleij@...aro.org>,
        Alexandre Courbot <gnurou@...il.com>,
        Andy Shevchenko <andriy.shevchenko@...ux.intel.com>,
        Vignesh R <vigneshr@...com>, Yong Li <yong.b.li@...el.com>,
        Geert Uytterhoeven <geert+renesas@...der.be>,
        Peter Zijlstra <peterz@...radead.org>,
        Ingo Molnar <mingo@...hat.com>,
        Wolfram Sang <wsa@...-dreams.de>, Peter Rosin <peda@...ntia.se>
Cc:     linux-i2c <linux-i2c@...r.kernel.org>,
        linux-gpio <linux-gpio@...r.kernel.org>,
        LKML <linux-kernel@...r.kernel.org>,
        Bartosz Golaszewski <bgolaszewski@...libre.com>
Subject: [PATCH v2 2/4] lockdep: make MAX_LOCKDEP_SUBCLASSES unconditionally visible

This define is needed by i2c_adapter_depth() to detect if we don't
exceed the maximum number of lock subclasses. Make it visible even
if lockdep is disabled.

Signed-off-by: Bartosz Golaszewski <bgolaszewski@...libre.com>
---
 include/linux/lockdep.h | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/include/linux/lockdep.h b/include/linux/lockdep.h
index eabe013..c1458fe 100644
--- a/include/linux/lockdep.h
+++ b/include/linux/lockdep.h
@@ -16,6 +16,8 @@ struct lockdep_map;
 extern int prove_locking;
 extern int lock_stat;
 
+#define MAX_LOCKDEP_SUBCLASSES		8UL
+
 #ifdef CONFIG_LOCKDEP
 
 #include <linux/linkage.h>
@@ -29,8 +31,6 @@ extern int lock_stat;
  */
 #define XXX_LOCK_USAGE_STATES		(1+3*4)
 
-#define MAX_LOCKDEP_SUBCLASSES		8UL
-
 /*
  * NR_LOCKDEP_CACHING_CLASSES ... Number of classes
  * cached in the instance of lockdep_map
-- 
2.7.4