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SubjectRe: [PATCH 1/1] clk: Fix build warnings
On Mon, Jun 30, 2014 at 11:40:54AM +0200, Sachin Kamat wrote:
> ‘all_lists’ and ‘orphan_list’ is accessed only when DEBUG_FS is defined.
> Thus, make their compilation conditional to fix the below warnings introduced
> by commit 27b8d5f723 ("clk: flatten clk tree in debugfs"):
> drivers/clk/clk.c:40:27: warning: ‘all_lists’ defined but not used [-Wunused-variable]
> drivers/clk/clk.c:46:27: warning: ‘orphan_list’ defined but not used [-Wunused-variable]
>

Maybe just move them inside the existing #ifdef CONFIG_DEBUG_FS / #endif?

Like:

diff --git a/drivers/clk/clk.c b/drivers/clk/clk.c
index 7dfb2f3..3b735de 100644
--- a/drivers/clk/clk.c
+++ b/drivers/clk/clk.c
@@ -36,17 +36,6 @@ static HLIST_HEAD(clk_root_list);
static HLIST_HEAD(clk_orphan_list);
static LIST_HEAD(clk_notifier_list);

-static struct hlist_head *all_lists[] = {
- &clk_root_list,
- &clk_orphan_list,
- NULL,
-};
-
-static struct hlist_head *orphan_list[] = {
- &clk_orphan_list,
- NULL,
-};
-
/*** locking ***/
static void clk_prepare_lock(void)
{
@@ -108,6 +97,17 @@ static void clk_enable_unlock(unsigned long flags)
#ifdef CONFIG_DEBUG_FS
#include <linux/debugfs.h>

+static struct hlist_head *all_lists[] = {
+ &clk_root_list,
+ &clk_orphan_list,
+ NULL,
+};
+
+static struct hlist_head *orphan_list[] = {
+ &clk_orphan_list,
+ NULL,
+};
+
static struct dentry *rootdir;
static int inited = 0;

Thanks for finding this.
Cheers,

Peter.
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