Re: [PATCH v2 9/9] drm/print: rename drm_debug to __drm_debug to discourage use

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On Tue, Sep 24, 2019 at 9:00 AM Jani Nikula <jani.nikula@xxxxxxxxx> wrote:
>
> drm_debug_enabled() is the way to check. __drm_debug is now reserved for
> drm print code only. No functional changes.
>
> v2: Rebase on move unlikely() to drm_debug_enabled()
>
> Signed-off-by: Jani Nikula <jani.nikula@xxxxxxxxx>

Acked-by: Alex Deucher <alexander.deucher@xxxxxxx>

> ---
>  drivers/gpu/drm/drm_print.c | 8 ++++----
>  include/drm/drm_print.h     | 5 +++--
>  2 files changed, 7 insertions(+), 6 deletions(-)
>
> diff --git a/drivers/gpu/drm/drm_print.c b/drivers/gpu/drm/drm_print.c
> index a7c89ec5ff26..ca3c56b026f0 100644
> --- a/drivers/gpu/drm/drm_print.c
> +++ b/drivers/gpu/drm/drm_print.c
> @@ -37,11 +37,11 @@
>  #include <drm/drm_print.h>
>
>  /*
> - * drm_debug: Enable debug output.
> + * __drm_debug: Enable debug output.
>   * Bitmask of DRM_UT_x. See include/drm/drm_print.h for details.
>   */
> -unsigned int drm_debug;
> -EXPORT_SYMBOL(drm_debug);
> +unsigned int __drm_debug;
> +EXPORT_SYMBOL(__drm_debug);
>
>  MODULE_PARM_DESC(debug, "Enable debug output, where each bit enables a debug category.\n"
>  "\t\tBit 0 (0x01)  will enable CORE messages (drm core code)\n"
> @@ -52,7 +52,7 @@ MODULE_PARM_DESC(debug, "Enable debug output, where each bit enables a debug cat
>  "\t\tBit 5 (0x20)  will enable VBL messages (vblank code)\n"
>  "\t\tBit 7 (0x80)  will enable LEASE messages (leasing code)\n"
>  "\t\tBit 8 (0x100) will enable DP messages (displayport code)");
> -module_param_named(debug, drm_debug, int, 0600);
> +module_param_named(debug, __drm_debug, int, 0600);
>
>  void __drm_puts_coredump(struct drm_printer *p, const char *str)
>  {
> diff --git a/include/drm/drm_print.h b/include/drm/drm_print.h
> index 4618e90cd124..cde54900d593 100644
> --- a/include/drm/drm_print.h
> +++ b/include/drm/drm_print.h
> @@ -34,7 +34,8 @@
>
>  #include <drm/drm.h>
>
> -extern unsigned int drm_debug;
> +/* Do *not* use outside of drm_print.[ch]! */
> +extern unsigned int __drm_debug;
>
>  /**
>   * DOC: print
> @@ -296,7 +297,7 @@ static inline struct drm_printer drm_err_printer(const char *prefix)
>
>  static inline bool drm_debug_enabled(unsigned int category)
>  {
> -       return unlikely(drm_debug & category);
> +       return unlikely(__drm_debug & category);
>  }
>
>  __printf(3, 4)
> --
> 2.20.1
>
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