The new debugfs registration fails to build when CONFIG_DEBUGFS is
disabled, because the drm_crtc structure is lacking a member in that
configuration:
drivers/gpu/drm/tegra/dc.c: In function 'tegra_dc_late_register':
drivers/gpu/drm/tegra/dc.c:1204:28: error: 'struct drm_crtc' has no member named 'debugfs_entry'
Without CONFIG_DEBUGFS, the rest of the function already degrades
into nothing, so we just avoid the one assignment.
Fixes: b95800eeef09 ("drm/tegra: dc: Register debugfs in ->late_register()")
Signed-off-by: Arnd Bergmann <arnd@xxxxxxxx>
---
drivers/gpu/drm/tegra/dc.c | 8 +++++++-
1 file changed, 7 insertions(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/tegra/dc.c b/drivers/gpu/drm/tegra/dc.c
index e963e40d8a25..e8a0cad5899c 100644
--- a/drivers/gpu/drm/tegra/dc.c
+++ b/drivers/gpu/drm/tegra/dc.c
@@ -1201,10 +1201,16 @@ static int tegra_dc_late_register(struct drm_crtc *crtc)
{
unsigned int i, count = ARRAY_SIZE(debugfs_files);
struct drm_minor *minor = crtc->dev->primary;
- struct dentry *root = crtc->debugfs_entry;
+ struct dentry *root;
struct tegra_dc *dc = to_tegra_dc(crtc);
int err;
+#ifdef CONFIG_DEBUG_FS
+ root = crtc->debugfs_entry;
+#else
+ root = NULL;
+#endif
+
dc->debugfs_files = kmemdup(debugfs_files, sizeof(debugfs_files),
GFP_KERNEL);
if (!dc->debugfs_files)
--
2.9.0
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