linux-kernel - [PATCH AUTOSEL 4.4 17/30] fbdev/via: fix defined but not used warning

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Message-ID: <20180907003853.57942-17-alexander.levin@microsoft.com>
Date:   Fri, 7 Sep 2018 00:39:09 +0000
From:   Sasha Levin <Alexander.Levin@...rosoft.com>
To:     "stable@...r.kernel.org" <stable@...r.kernel.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
CC:     Randy Dunlap <rdunlap@...radead.org>,
        Florian Tobias Schandinat <FlorianSchandinat@....de>,
        Bartlomiej Zolnierkiewicz <b.zolnierkie@...sung.com>,
        Sasha Levin <Alexander.Levin@...rosoft.com>
Subject: [PATCH AUTOSEL 4.4 17/30] fbdev/via: fix defined but not used warning

From: Randy Dunlap <rdunlap@...radead.org>

[ Upstream commit b6566b47a67e07fdca44cf51abb14e2fbe17d3eb ]

Fix a build warning in viafbdev.c when CONFIG_PROC_FS is not enabled
by marking the unused function as __maybe_unused.

../drivers/video/fbdev/via/viafbdev.c:1471:12: warning: 'viafb_sup_odev_proc_show' defined but not used [-Wunused-function]

Signed-off-by: Randy Dunlap <rdunlap@...radead.org>
Cc: Florian Tobias Schandinat <FlorianSchandinat@....de>
Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@...sung.com>
Signed-off-by: Sasha Levin <alexander.levin@...rosoft.com>
---
 drivers/video/fbdev/via/viafbdev.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/video/fbdev/via/viafbdev.c b/drivers/video/fbdev/via/viafbdev.c
index badee04ef496..71b5dca95bdb 100644
--- a/drivers/video/fbdev/via/viafbdev.c
+++ b/drivers/video/fbdev/via/viafbdev.c
@@ -19,6 +19,7 @@
  * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
  */
 
+#include <linux/compiler.h>
 #include <linux/module.h>
 #include <linux/seq_file.h>
 #include <linux/slab.h>
@@ -1468,7 +1469,7 @@ static const struct file_operations viafb_vt1636_proc_fops = {
 
 #endif /* CONFIG_FB_VIA_DIRECT_PROCFS */
 
-static int viafb_sup_odev_proc_show(struct seq_file *m, void *v)
+static int __maybe_unused viafb_sup_odev_proc_show(struct seq_file *m, void *v)
 {
 	via_odev_to_seq(m, supported_odev_map[
 		viaparinfo->shared->chip_info.gfx_chip_name]);
-- 
2.17.1