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authorPaul Bolle <pebolle@tiscali.nl>2013-01-25 00:53:17 +0400
committerIngo Molnar <mingo@kernel.org>2013-02-19 11:42:41 +0400
commit5cd3f5affad2109fd1458aab3f6216f2181e26ea (patch)
tree5cea168ff323ed1c00c0e6db67d3963298a4c029 /include/linux/lockdep.h
parentc06b4f1947213cd0902610fafcabac02d49ad728 (diff)
downloadlinux-5cd3f5affad2109fd1458aab3f6216f2181e26ea.tar.xz
lockdep: Silence warning if CONFIG_LOCKDEP isn't set
Since commit c9a4962881929df7f1ef6e63e1b9da304faca4dd ("nfsd: make client_lock per net") compiling nfs4state.o without CONFIG_LOCKDEP set, triggers this GCC warning: fs/nfsd/nfs4state.c: In function ‘free_client’: fs/nfsd/nfs4state.c:1051:19: warning: unused variable ‘nn’ [-Wunused-variable] The cause of that warning is that lockdep_assert_held() compiles away if CONFIG_LOCKDEP is not set. Silence this warning by using the argument to lockdep_assert_held() as a nop if CONFIG_LOCKDEP is not set. Signed-off-by: Paul Bolle <pebolle@tiscali.nl> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stanislav Kinsbursky <skinsbursky@parallels.com> Cc: J. Bruce Fields <bfields@redhat.com> Link: http://lkml.kernel.org/r/1359060797.1325.33.camel@x61.thuisdomein Signed-off-by: Ingo Molnar <mingo@kernel.org> -- include/linux/lockdep.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
Diffstat (limited to 'include/linux/lockdep.h')
-rw-r--r--include/linux/lockdep.h2
1 files changed, 1 insertions, 1 deletions
diff --git a/include/linux/lockdep.h b/include/linux/lockdep.h
index 2bca44b0893c..f05631effc73 100644
--- a/include/linux/lockdep.h
+++ b/include/linux/lockdep.h
@@ -410,7 +410,7 @@ struct lock_class_key { };
#define lockdep_depth(tsk) (0)
-#define lockdep_assert_held(l) do { } while (0)
+#define lockdep_assert_held(l) do { (void)(l); } while (0)
#define lockdep_recursing(tsk) (0)