linux-kernel - [PATCH] drm/armada: fix debugfs link error

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Date:   Fri, 28 Jun 2019 12:33:40 +0200
From:   Arnd Bergmann <arnd@...db.de>
To:     Russell King <linux@...linux.org.uk>,
        David Airlie <airlied@...ux.ie>,
        Daniel Vetter <daniel@...ll.ch>
Cc:     Arnd Bergmann <arnd@...db.de>,
        Russell King <rmk+kernel@...linux.org.uk>,
        Sam Ravnborg <sam@...nborg.org>,
        dri-devel@...ts.freedesktop.org, linux-kernel@...r.kernel.org
Subject: [PATCH] drm/armada: fix debugfs link error

Debugfs can be disabled at compile time, causing a link error
with the newly restructured code:

drivers/gpu/drm/armada/armada_crtc.o: In function `armada_drm_crtc_late_register':
armada_crtc.c:(.text+0x974): undefined reference to `armada_drm_crtc_debugfs_init'

Make the code into the debugfs init function conditional.

Fixes: 05ec8bd524ba ("drm/armada: redo CRTC debugfs files")
Signed-off-by: Arnd Bergmann <arnd@...db.de>
---
 drivers/gpu/drm/armada/armada_crtc.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/armada/armada_crtc.c b/drivers/gpu/drm/armada/armada_crtc.c
index e3a5964d8a65..03d3fd00fe00 100644
--- a/drivers/gpu/drm/armada/armada_crtc.c
+++ b/drivers/gpu/drm/armada/armada_crtc.c
@@ -773,7 +773,9 @@ static void armada_drm_crtc_destroy(struct drm_crtc *crtc)
 
 static int armada_drm_crtc_late_register(struct drm_crtc *crtc)
 {
-	armada_drm_crtc_debugfs_init(drm_to_armada_crtc(crtc));
+	if (IS_ENABLED(CONFIG_DEBUG_FS))
+		armada_drm_crtc_debugfs_init(drm_to_armada_crtc(crtc));
+
 	return 0;
 }
 
-- 
2.20.0