On Fri, Aug 12, 2016 at 01:43:52PM +0100, Dave Gordon wrote:
> Alternatively (noting that almost the only use we make of this drm_info_node
> is to indirect multiple times to get dev_priv), we could change what is
> stored in (struct seq_file).private to make it more convenient and/or
> efficient. For example,
>
> struct i915_debugfs_node {
> struct drm_i915_private *dev_priv;
> struct drm_info_node drm_info; // if still required
> };
>
> thus eliminating several memory cycles per use for a cost of one word extra
> data per debugfs node.
v4 of the patch doesn't eliminate the need for the node_to_i915() macro
and its users, but all functions that don't use the
drm_debugfs_create_files() helper now receive drm_i915_private *dev_priv
instead of drm_device *dev. This at least kills off the cast_to_i915()
macro.
Regards, David
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