linux-kernel - [PATCH next] drm: of: fix build error without CONFIG

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Message-ID: <20191219105717.175829-1-chenzhou10@huawei.com>
Date:   Thu, 19 Dec 2019 18:57:17 +0800
From:   Chen Zhou <chenzhou10@...wei.com>
To:     <maarten.lankhorst@...ux.intel.com>, <mripard@...nel.org>,
        <airlied@...ux.ie>, <daniel@...ll.ch>
CC:     <dri-devel@...ts.freedesktop.org>, <linux-kernel@...r.kernel.org>,
        <chenzhou10@...wei.com>
Subject: [PATCH next] drm: of: fix build error without CONFIG_OF

Without CONFIG_OF, drm_of_lvds_get_dual_link_pixel_order should be
static inline, otherwise building fails:

drivers/gpu/drm/vc4/vc4_dsi.o: In function `drm_of_lvds_get_dual_link_pixel_order':
vc4_dsi.c:(.text+0xa30): multiple definition of `drm_of_lvds_get_dual_link_pixel_order'
drivers/gpu/drm/vc4/vc4_dpi.o:vc4_dpi.c:(.text+0x460): first defined here
make[4]: *** [drivers/gpu/drm/vc4/vc4.o] Error 1
make[3]: *** [drivers/gpu/drm/vc4] Error 2
make[3]: *** Waiting for unfinished jobs....
make[2]: *** [drivers/gpu/drm] Error 2
make[1]: *** [drivers/gpu] Error 2
make[1]: *** Waiting for unfinished jobs....
make: *** [drivers] Error 2

Fixes: 6529007522de (drm: of: Add drm_of_lvds_get_dual_link_pixel_order)
Reported-by: Hulk Robot <hulkci@...wei.com>
Signed-off-by: Chen Zhou <chenzhou10@...wei.com>
---
 include/drm/drm_of.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/include/drm/drm_of.h b/include/drm/drm_of.h
index 8ec7ca6..3398be9 100644
--- a/include/drm/drm_of.h
+++ b/include/drm/drm_of.h
@@ -92,7 +92,7 @@ static inline int drm_of_find_panel_or_bridge(const struct device_node *np,
 	return -EINVAL;
 }
 
-int drm_of_lvds_get_dual_link_pixel_order(const struct device_node *port1,
+static inline int drm_of_lvds_get_dual_link_pixel_order(const struct device_node *port1,
 					  const struct device_node *port2)
 {
 	return -EINVAL;
-- 
2.7.4