[v1] i915: Re-use DEFINE_SHOW_ATTRIBUTE() macro

Commit Message

Andy Shevchenko Feb. 14, 2018, 3:41 p.m. UTC

...instead of open coding file operations followed by custom ->open()
callbacks per each attribute.

Signed-off-by: Andy Shevchenko <[e-mail]>
---
 drivers/gpu/drm/i915/gvt/debugfs.c  | 13 +------
 drivers/gpu/drm/i915/i915_debugfs.c | 76 ++++++-------------------------------
 2 files changed, 12 insertions(+), 77 deletions(-)

Patch

diff --git a/drivers/gpu/drm/i915/gvt/debugfs.c b/drivers/gpu/drm/i915/gvt/debugfs.c
index 32a66dfdf112..f7d0078eb61b 100644
--- a/drivers/gpu/drm/i915/gvt/debugfs.c
+++ b/drivers/gpu/drm/i915/gvt/debugfs.c
@@ -122,18 +122,7 @@  static int vgpu_mmio_diff_show(struct seq_file *s, void *unused)
 	seq_printf(s, "Total: %d, Diff: %d\n", param.total, param.diff);
 	return 0;
 }
-
-static int vgpu_mmio_diff_open(struct inode *inode, struct file *file)
-{
-	return single_open(file, vgpu_mmio_diff_show, inode->i_private);
-}
-
-static const struct file_operations vgpu_mmio_diff_fops = {
-	.open		= vgpu_mmio_diff_open,
-	.read		= seq_read,
-	.llseek		= seq_lseek,
-	.release	= single_release,
-};
+DEFINE_SHOW_ATTRIBUTE(vgpu_mmio_diff);
 
 /**
  * intel_gvt_debugfs_add_vgpu - register debugfs entries for a vGPU
diff --git a/drivers/gpu/drm/i915/i915_debugfs.c b/drivers/gpu/drm/i915/i915_debugfs.c
index 960302668649..3e44b2ddf592 100644
--- a/drivers/gpu/drm/i915/i915_debugfs.c
+++ b/drivers/gpu/drm/i915/i915_debugfs.c
@@ -3506,7 +3506,8 @@  static ssize_t i915_displayport_test_active_write(struct file *file,
 
 static int i915_displayport_test_active_show(struct seq_file *m, void *data)
 {
-	struct drm_device *dev = m->private;
+	struct drm_i915_private *dev_priv = m->private;
+	struct drm_device *dev = &dev_priv->drm;
 	struct drm_connector *connector;
 	struct drm_connector_list_iter conn_iter;
 	struct intel_dp *intel_dp;
@@ -3540,10 +3541,8 @@  static int i915_displayport_test_active_show(struct seq_file *m, void *data)
 static int i915_displayport_test_active_open(struct inode *inode,
 					     struct file *file)
 {
-	struct drm_i915_private *dev_priv = inode->i_private;
-
 	return single_open(file, i915_displayport_test_active_show,
-			   &dev_priv->drm);
+			   inode->i_private);
 }
 
 static const struct file_operations i915_displayport_test_active_fops = {
@@ -3557,7 +3556,8 @@  static const struct file_operations i915_displayport_test_active_fops = {
 
 static int i915_displayport_test_data_show(struct seq_file *m, void *data)
 {
-	struct drm_device *dev = m->private;
+	struct drm_i915_private *dev_priv = m->private;
+	struct drm_device *dev = &dev_priv->drm;
 	struct drm_connector *connector;
 	struct drm_connector_list_iter conn_iter;
 	struct intel_dp *intel_dp;
@@ -3596,26 +3596,12 @@  static int i915_displayport_test_data_show(struct seq_file *m, void *data)
 
 	return 0;
 }
-static int i915_displayport_test_data_open(struct inode *inode,
-					   struct file *file)
-{
-	struct drm_i915_private *dev_priv = inode->i_private;
-
-	return single_open(file, i915_displayport_test_data_show,
-			   &dev_priv->drm);
-}
-
-static const struct file_operations i915_displayport_test_data_fops = {
-	.owner = THIS_MODULE,
-	.open = i915_displayport_test_data_open,
-	.read = seq_read,
-	.llseek = seq_lseek,
-	.release = single_release
-};
+DEFINE_SHOW_ATTRIBUTE(i915_displayport_test_data);
 
 static int i915_displayport_test_type_show(struct seq_file *m, void *data)
 {
-	struct drm_device *dev = m->private;
+	struct drm_i915_private *dev_priv = m->private;
+	struct drm_device *dev = &dev_priv->drm;
 	struct drm_connector *connector;
 	struct drm_connector_list_iter conn_iter;
 	struct intel_dp *intel_dp;
@@ -3642,23 +3628,7 @@  static int i915_displayport_test_type_show(struct seq_file *m, void *data)
 
 	return 0;
 }
-
-static int i915_displayport_test_type_open(struct inode *inode,
-				       struct file *file)
-{
-	struct drm_i915_private *dev_priv = inode->i_private;
-
-	return single_open(file, i915_displayport_test_type_show,
-			   &dev_priv->drm);
-}
-
-static const struct file_operations i915_displayport_test_type_fops = {
-	.owner = THIS_MODULE,
-	.open = i915_displayport_test_type_open,
-	.read = seq_read,
-	.llseek = seq_lseek,
-	.release = single_release
-};
+DEFINE_SHOW_ATTRIBUTE(i915_displayport_test_type);
 
 static void wm_latency_show(struct seq_file *m, const uint16_t wm[8])
 {
@@ -4812,19 +4782,7 @@  static int i915_dpcd_show(struct seq_file *m, void *data)
 
 	return 0;
 }
-
-static int i915_dpcd_open(struct inode *inode, struct file *file)
-{
-	return single_open(file, i915_dpcd_show, inode->i_private);
-}
-
-static const struct file_operations i915_dpcd_fops = {
-	.owner = THIS_MODULE,
-	.open = i915_dpcd_open,
-	.read = seq_read,
-	.llseek = seq_lseek,
-	.release = single_release,
-};
+DEFINE_SHOW_ATTRIBUTE(i915_dpcd);
 
 static int i915_panel_show(struct seq_file *m, void *data)
 {
@@ -4846,19 +4804,7 @@  static int i915_panel_show(struct seq_file *m, void *data)
 
 	return 0;
 }
-
-static int i915_panel_open(struct inode *inode, struct file *file)
-{
-	return single_open(file, i915_panel_show, inode->i_private);
-}
-
-static const struct file_operations i915_panel_fops = {
-	.owner = THIS_MODULE,
-	.open = i915_panel_open,
-	.read = seq_read,
-	.llseek = seq_lseek,
-	.release = single_release,
-};
+DEFINE_SHOW_ATTRIBUTE(i915_panel);
 
 /**
  * i915_debugfs_connector_add - add i915 specific connector debugfs files