Re: [kbuild-all] [PATCH] OPTIONAL: cpufreq/intel_pstate: fix debugfs_simple_attr.cocci warnings

[Fabio Estevam]

Hi Julia,

On Thu, Mar 29, 2018 at 4:12 PM, Julia Lawall <julia.lawall@xxxxxxx> wrote:
>  Use DEFINE_DEBUGFS_ATTRIBUTE rather than DEFINE_SIMPLE_ATTRIBUTE
>  for debugfs files.
>
> Semantic patch information:
>  Rationale: DEFINE_SIMPLE_ATTRIBUTE + debugfs_create_file()
>  imposes some significant overhead as compared to
>  DEFINE_DEBUGFS_ATTRIBUTE + debugfs_create_file_unsafe().

Just curious: could you please expand on what "imposes some
significant overhead" means?

Thanks