fault_inject: silence a warning

lib/fault-inject.c:168: warning: 'debugfs_create_ul_MAX_STACK_TRACE_DEPTH' defined but not used

Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
Cc: Akinobu Mita <akinobu.mita@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

diff --git a/lib/fault-inject.c b/lib/fault-inject.c
index b18fc2ff9ffea5df3d3377fc092bb8306d556fd2..23985a278bbb08d919ab9bc92dd7869d3aba8f0a 100644 (file)
--- a/lib/fault-inject.c
+++ b/lib/fault-inject.c
@@ -139,12 +139,14 @@ static void debugfs_ul_set(void *data, u64 val)
        *(unsigned long *)data = val;
 }
 
+#ifdef CONFIG_FAULT_INJECTION_STACKTRACE_FILTER
 static void debugfs_ul_set_MAX_STACK_TRACE_DEPTH(void *data, u64 val)
 {
        *(unsigned long *)data =
                val < MAX_STACK_TRACE_DEPTH ?
                val : MAX_STACK_TRACE_DEPTH;
 }
+#endif /* CONFIG_FAULT_INJECTION_STACKTRACE_FILTER */
 
 static u64 debugfs_ul_get(void *data)
 {
@@ -159,6 +161,7 @@ static struct dentry *debugfs_create_ul(const char *name, mode_t mode,
        return debugfs_create_file(name, mode, parent, value, &fops_ul);
 }
 
+#ifdef CONFIG_FAULT_INJECTION_STACKTRACE_FILTER
 DEFINE_SIMPLE_ATTRIBUTE(fops_ul_MAX_STACK_TRACE_DEPTH, debugfs_ul_get,
                        debugfs_ul_set_MAX_STACK_TRACE_DEPTH, "%llu\n");
 
@@ -169,6 +172,7 @@ static struct dentry *debugfs_create_ul_MAX_STACK_TRACE_DEPTH(
        return debugfs_create_file(name, mode, parent, value,
                                   &fops_ul_MAX_STACK_TRACE_DEPTH);
 }
+#endif /* CONFIG_FAULT_INJECTION_STACKTRACE_FILTER */
 
 static void debugfs_atomic_t_set(void *data, u64 val)
 {