drm/i915: convert debugfs creation/destruction to table

At least for the common cases where we only need special file
operations. The forcewake file is still rather more special.

v2: Fix up the debugfs unregister code.

v3: Actually squash in the right fixup.

Acked-by: Ben Widawsky <ben@bwidawsk.net>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>

1 files changed, 30 insertions, 64 deletions

diff --git a/drivers/gpu/drm/i915/i915_debugfs.c b/drivers/gpu/drm/i915/i915_debugfs.c
index 396387ed207a..d4138124d993 100644
--- a/drivers/gpu/drm/i915/i915_debugfs.c
+++ b/drivers/gpu/drm/i915/i915_debugfs.c
@@ -2375,61 +2375,35 @@ static struct drm_info_list i915_debugfs_list[] = {
 };
 #define I915_DEBUGFS_ENTRIES ARRAY_SIZE(i915_debugfs_list)
 
+struct i915_debugfs_files {
+        const char *name;
+        const struct file_operations *fops;
+} i915_debugfs_files[] = {
+        {"i915_wedged", &i915_wedged_fops},
+        {"i915_max_freq", &i915_max_freq_fops},
+        {"i915_min_freq", &i915_min_freq_fops},
+        {"i915_cache_sharing", &i915_cache_sharing_fops},
+        {"i915_ring_stop", &i915_ring_stop_fops},
+        {"i915_gem_drop_caches", &i915_drop_caches_fops},
+        {"i915_error_state", &i915_error_state_fops},
+        {"i915_next_seqno", &i915_next_seqno_fops},
+};
+
 int i915_debugfs_init(struct drm_minor *minor)
 {
-        int ret;
-
-        ret = i915_debugfs_create(minor->debugfs_root, minor,
-                                  "i915_wedged",
-                                  &i915_wedged_fops);
-        if (ret)
-                return ret;
+        int ret, i;
 
         ret = i915_forcewake_create(minor->debugfs_root, minor);
         if (ret)
                 return ret;
 
-        ret = i915_debugfs_create(minor->debugfs_root, minor,
-                                  "i915_max_freq",
-                                  &i915_max_freq_fops);
-        if (ret)
-                return ret;
-
-        ret = i915_debugfs_create(minor->debugfs_root, minor,
-                                  "i915_min_freq",
-                                  &i915_min_freq_fops);
-        if (ret)
-                return ret;
-
-        ret = i915_debugfs_create(minor->debugfs_root, minor,
-                                  "i915_cache_sharing",
-                                  &i915_cache_sharing_fops);
-        if (ret)
-                return ret;
-
-        ret = i915_debugfs_create(minor->debugfs_root, minor,
-                                  "i915_ring_stop",
-                                  &i915_ring_stop_fops);
-        if (ret)
-                return ret;
-
-        ret = i915_debugfs_create(minor->debugfs_root, minor,
-                                  "i915_gem_drop_caches",
-                                  &i915_drop_caches_fops);
-        if (ret)
-                return ret;
-
-        ret = i915_debugfs_create(minor->debugfs_root, minor,
-                                  "i915_error_state",
-                                  &i915_error_state_fops);
-        if (ret)
-                return ret;
-
-        ret = i915_debugfs_create(minor->debugfs_root, minor,
-                                 "i915_next_seqno",
-                                 &i915_next_seqno_fops);
-        if (ret)
-                return ret;
+        for (i = 0; i < ARRAY_SIZE(i915_debugfs_files); i++) {
+                ret = i915_debugfs_create(minor->debugfs_root, minor,
+                                          i915_debugfs_files[i].name,
+                                          i915_debugfs_files[i].fops);
+                if (ret)
+                        return ret;
+        }
 
         return drm_debugfs_create_files(i915_debugfs_list,
                                         I915_DEBUGFS_ENTRIES,
@@ -2438,26 +2412,18 @@ int i915_debugfs_init(struct drm_minor *minor)
 
 void i915_debugfs_cleanup(struct drm_minor *minor)
 {
+        int i;
+
         drm_debugfs_remove_files(i915_debugfs_list,
                                  I915_DEBUGFS_ENTRIES, minor);
         drm_debugfs_remove_files((struct drm_info_list *) &i915_forcewake_fops,
                                  1, minor);
-        drm_debugfs_remove_files((struct drm_info_list *) &i915_wedged_fops,
-                                 1, minor);
-        drm_debugfs_remove_files((struct drm_info_list *) &i915_max_freq_fops,
-                                 1, minor);
-        drm_debugfs_remove_files((struct drm_info_list *) &i915_min_freq_fops,
-                                 1, minor);
-        drm_debugfs_remove_files((struct drm_info_list *) &i915_cache_sharing_fops,
-                                 1, minor);
-        drm_debugfs_remove_files((struct drm_info_list *) &i915_drop_caches_fops,
-                                 1, minor);
-        drm_debugfs_remove_files((struct drm_info_list *) &i915_ring_stop_fops,
-                                 1, minor);
-        drm_debugfs_remove_files((struct drm_info_list *) &i915_error_state_fops,
-                                 1, minor);
-        drm_debugfs_remove_files((struct drm_info_list *) &i915_next_seqno_fops,
-                                 1, minor);
+        for (i = 0; i < ARRAY_SIZE(i915_debugfs_files); i++) {
+                struct drm_info_list *info_list =
+                        (struct drm_info_list *) i915_debugfs_files[i].fops;
+
+                drm_debugfs_remove_files(info_list, 1, minor);
+        }
 }
 
 #endif /* CONFIG_DEBUG_FS */