Re: [Intel-gfx] [PATCH 02/13] drm/i915/sdvo: Protect macro args

[Jani Nikula <jani.nikula@linux.intel.com>]

On Wed, 05 Jul 2023, Ville Syrjala <ville.syrjala@linux.intel.com> wrote:
> From: Ville Syrjälä <ville.syrjala@linux.intel.com>
>
> Put parens around macro argument evaluation for safety.
>
> Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>

Reviewed-by: Jani Nikula <jani.nikula@intel.com>

> ---
>  drivers/gpu/drm/i915/display/intel_sdvo.c | 13 ++++++-------
>  1 file changed, 6 insertions(+), 7 deletions(-)
>
> diff --git a/drivers/gpu/drm/i915/display/intel_sdvo.c b/drivers/gpu/drm/i915/display/intel_sdvo.c
> index 9ac4c0b6055b..ec94da6cb7bb 100644
> --- a/drivers/gpu/drm/i915/display/intel_sdvo.c
> +++ b/drivers/gpu/drm/i915/display/intel_sdvo.c
> @@ -57,14 +57,13 @@
>  #define SDVO_LVDS_MASK (SDVO_OUTPUT_LVDS0 | SDVO_OUTPUT_LVDS1)
>  #define SDVO_TV_MASK   (SDVO_OUTPUT_CVBS0 | SDVO_OUTPUT_SVID0 | SDVO_OUTPUT_YPRPB0)
>  
> -#define SDVO_OUTPUT_MASK (SDVO_TMDS_MASK | SDVO_RGB_MASK | SDVO_LVDS_MASK |\
> -			SDVO_TV_MASK)
> +#define SDVO_OUTPUT_MASK (SDVO_TMDS_MASK | SDVO_RGB_MASK | SDVO_LVDS_MASK | SDVO_TV_MASK)
>  
> -#define IS_TV(c)	(c->output_flag & SDVO_TV_MASK)
> -#define IS_TMDS(c)	(c->output_flag & SDVO_TMDS_MASK)
> -#define IS_LVDS(c)	(c->output_flag & SDVO_LVDS_MASK)
> -#define IS_TV_OR_LVDS(c) (c->output_flag & (SDVO_TV_MASK | SDVO_LVDS_MASK))
> -#define IS_DIGITAL(c) (c->output_flag & (SDVO_TMDS_MASK | SDVO_LVDS_MASK))
> +#define IS_TV(c)		((c)->output_flag & SDVO_TV_MASK)
> +#define IS_TMDS(c)		((c)->output_flag & SDVO_TMDS_MASK)
> +#define IS_LVDS(c)		((c)->output_flag & SDVO_LVDS_MASK)
> +#define IS_TV_OR_LVDS(c)	((c)->output_flag & (SDVO_TV_MASK | SDVO_LVDS_MASK))
> +#define IS_DIGITAL(c)		((c)->output_flag & (SDVO_TMDS_MASK | SDVO_LVDS_MASK))
>  
>  
>  static const char * const tv_format_names[] = {

-- 
Jani Nikula, Intel Open Source Graphics Center