[PATCH RESEND 1/4] drm/sysfs: add a helper for extracting connector type from kobject

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This reduces duplication in the patches to follow. No functional
changes.

Signed-off-by: Jani Nikula <jani.nikula@xxxxxxxxx>
---
 drivers/gpu/drm/drm_sysfs.c | 12 +++++++++---
 1 file changed, 9 insertions(+), 3 deletions(-)

diff --git a/drivers/gpu/drm/drm_sysfs.c b/drivers/gpu/drm/drm_sysfs.c
index ffc305fc2076..33466999b59a 100644
--- a/drivers/gpu/drm/drm_sysfs.c
+++ b/drivers/gpu/drm/drm_sysfs.c
@@ -407,17 +407,23 @@ static struct attribute *connector_opt_dev_attrs[] = {
 	NULL
 };
 
-static umode_t connector_opt_dev_is_visible(struct kobject *kobj,
-					    struct attribute *attr, int idx)
+/* Connector type related helpers */
+static int kobj_connector_type(struct kobject *kobj)
 {
 	struct device *dev = kobj_to_dev(kobj);
 	struct drm_connector *connector = to_drm_connector(dev);
 
+	return connector->connector_type;
+}
+
+static umode_t connector_opt_dev_is_visible(struct kobject *kobj,
+					    struct attribute *attr, int idx)
+{
 	/*
 	 * In the long run it maybe a good idea to make one set of
 	 * optionals per connector type.
 	 */
-	switch (connector->connector_type) {
+	switch (kobj_connector_type(kobj)) {
 	case DRM_MODE_CONNECTOR_DVII:
 	case DRM_MODE_CONNECTOR_Composite:
 	case DRM_MODE_CONNECTOR_SVIDEO:
-- 
2.1.4

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