From 555ee46f58c12a0b48b1d0b6b62637f874f00f2d Mon Sep 17 00:00:00 2001
From: Bob Liu <lliubbo@gmail.com>
Date: Tue, 2 Apr 2013 10:47:42 +0800
Subject: [PATCH] drivers: staging: zcache: fix compile error
MIME-Version: 1.0
Content-Type: text/plain; charset=utf8
Content-Transfer-Encoding: 8bit

Because 'ramster_debugfs_init' is not defined if !CONFIG_DEBUG_FS, there is
compile error:

$ make drivers/staging/zcache/
staging/zcache/ramster/ramster.c: In function ‘ramster_init’:
staging/zcache/ramster/ramster.c:981:2: error: implicit declaration of
function ‘ramster_debugfs_init’ [-Werror=implicit-function-declaration]

This patch fix it and reduce some #ifdef CONFIG_DEBUG_FS in .c files the same
way.

Reported-by: Fengguang Wu <fengguang.wu@intel.com>
Signed-off-by: Bob Liu <bob.liu@oracle.com>
Reviewed-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/zcache/ramster/ramster.c | 5 +++++
 drivers/staging/zcache/zbud.c            | 7 +++++--
 drivers/staging/zcache/zcache-main.c     | 2 --
 3 files changed, 10 insertions(+), 4 deletions(-)

diff --git a/drivers/staging/zcache/ramster/ramster.c b/drivers/staging/zcache/ramster/ramster.c
index bf96a1cbf7c1..01fc672399fe 100644
--- a/drivers/staging/zcache/ramster/ramster.c
+++ b/drivers/staging/zcache/ramster/ramster.c
@@ -134,6 +134,11 @@ static int __init ramster_debugfs_init(void)
 }
 #undef	zdebugfs
 #undef	zdfs64
+#else
+static inline int ramster_debugfs_init(void)
+{
+	return 0;
+}
 #endif
 
 static LIST_HEAD(ramster_rem_op_list);
diff --git a/drivers/staging/zcache/zbud.c b/drivers/staging/zcache/zbud.c
index fdff5c6a0239..6cda4ed9ed31 100644
--- a/drivers/staging/zcache/zbud.c
+++ b/drivers/staging/zcache/zbud.c
@@ -342,6 +342,11 @@ static int zbud_debugfs_init(void)
 }
 #undef	zdfs
 #undef	zdfs64
+#else
+static inline int zbud_debugfs_init(void)
+{
+	return 0;
+}
 #endif
 
 /* protects the buddied list and all unbuddied lists */
@@ -1051,9 +1056,7 @@ void zbud_init(void)
 {
 	int i;
 
-#ifdef CONFIG_DEBUG_FS
 	zbud_debugfs_init();
-#endif
 	BUG_ON((sizeof(struct tmem_handle) * 2 > CHUNK_SIZE));
 	BUG_ON(sizeof(struct zbudpage) > sizeof(struct page));
 	for (i = 0; i < NCHUNKS; i++) {
diff --git a/drivers/staging/zcache/zcache-main.c b/drivers/staging/zcache/zcache-main.c
index 7a6dd966931b..cf3001c1f407 100644
--- a/drivers/staging/zcache/zcache-main.c
+++ b/drivers/staging/zcache/zcache-main.c
@@ -1733,9 +1733,7 @@ static int __init zcache_init(void)
 		namestr = "ramster";
 		ramster_register_pamops(&zcache_pamops);
 	}
-#ifdef CONFIG_DEBUG_FS
 	zcache_debugfs_init();
-#endif
 	if (zcache_enabled) {
 		unsigned int cpu;
 
-- 
2.20.1