Re: [PATCH 6/9 v2] drm: use c99 initializers in structures

[Daniel Vetter <daniel@ffwll.ch>]

On Sat, Aug 23, 2014 at 06:09:56PM +0200, Julia Lawall wrote:
> From: Julia Lawall <Julia.Lawall@lip6.fr>
> 
> Use c99 initializers for structures.
> 
> Drop 0 initializers in drivers/gpu/drm/sti/sti_vtac.c.  A 0x0 initializer
> is left in vtac_mode_aux in drivers/gpu/drm/sti/sti_vtac.c to highlight the
> relation to vtac_mode_main.
> 
> A simplified version of the semantic match that finds the first problem is
> as follows: (http://coccinelle.lip6.fr/)
> 
> // <smpl>
> @decl@
> identifier i1,fld;
> type T;
> field list[n] fs;
> @@
> 
> struct i1 {
>  fs
>  T fld;
>  ...};
> 
> @bad@
> identifier decl.i1,i2;
> expression e;
> initializer list[decl.n] is;
> @@
> 
> struct i1 i2 = { is,
> + .fld = e
> - e
>  ,...};
> // </smpl>
> 
> Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr>
> 
> ---
> The patches in this series do not depend on each other.
> 
> v2: Drop 0 initializers and add trailing commas at the suggestions of Josh
> Triplett.

Slurped into my drm topic branch for 3.18 to make sure it doesn't get lost.
-Daniel

> 
>  drivers/gpu/drm/drm_edid.c     |   21 ++++++++++++---------
>  drivers/gpu/drm/sti/sti_vtac.c |   12 ++++++++++--
>  2 files changed, 22 insertions(+), 11 deletions(-)
> 
> diff --git a/drivers/gpu/drm/sti/sti_vtac.c b/drivers/gpu/drm/sti/sti_vtac.c
> index 82a51d4..4576536 100644
> --- a/drivers/gpu/drm/sti/sti_vtac.c
> +++ b/drivers/gpu/drm/sti/sti_vtac.c
> @@ -56,8 +56,16 @@ struct sti_vtac_mode {
>  	u32 phyts_per_pixel;
>  };
>  
> -static const struct sti_vtac_mode vtac_mode_main = {0x2, 0x2, VTAC_5_PPP};
> -static const struct sti_vtac_mode vtac_mode_aux = {0x1, 0x0, VTAC_17_PPP};
> +static const struct sti_vtac_mode vtac_mode_main = {
> +	.vid_in_width = 0x2,
> +	.phyts_width = 0x2,
> +	.phyts_per_pixel = VTAC_5_PPP,
> +};
> +static const struct sti_vtac_mode vtac_mode_aux = {
> +	.vid_in_width = 0x1,
> +	.phyts_width = 0x0,
> +	.phyts_per_pixel = VTAC_17_PPP,
> +};
>  
>  /**
>   * VTAC structure
> diff --git a/drivers/gpu/drm/drm_edid.c b/drivers/gpu/drm/drm_edid.c
> index 1dbf3bc..859ae1c 100644
> --- a/drivers/gpu/drm/drm_edid.c
> +++ b/drivers/gpu/drm/drm_edid.c
> @@ -2103,7 +2103,8 @@ static int
>  add_inferred_modes(struct drm_connector *connector, struct edid *edid)
>  {
>  	struct detailed_mode_closure closure = {
> -		connector, edid, 0, 0, 0
> +		.connector = connector,
> +		.edid = edid,
>  	};
>  
>  	if (version_greater(edid, 1, 0))
> @@ -2169,7 +2170,8 @@ add_established_modes(struct drm_connector *connector, struct edid *edid)
>  		((edid->established_timings.mfg_rsvd & 0x80) << 9);
>  	int i, modes = 0;
>  	struct detailed_mode_closure closure = {
> -		connector, edid, 0, 0, 0
> +		.connector = connector,
> +		.edid = edid,
>  	};
>  
>  	for (i = 0; i <= EDID_EST_TIMINGS; i++) {
> @@ -2227,7 +2229,8 @@ add_standard_modes(struct drm_connector *connector, struct edid *edid)
>  {
>  	int i, modes = 0;
>  	struct detailed_mode_closure closure = {
> -		connector, edid, 0, 0, 0
> +		.connector = connector,
> +		.edid = edid,
>  	};
>  
>  	for (i = 0; i < EDID_STD_TIMINGS; i++) {
> @@ -2313,7 +2316,8 @@ static int
>  add_cvt_modes(struct drm_connector *connector, struct edid *edid)
>  {	
>  	struct detailed_mode_closure closure = {
> -		connector, edid, 0, 0, 0
> +		.connector = connector,
> +		.edid = edid,
>  	};
>  
>  	if (version_greater(edid, 1, 2))
> @@ -2357,11 +2361,10 @@ add_detailed_modes(struct drm_connector *connector, struct edid *edid,
>  		   u32 quirks)
>  {
>  	struct detailed_mode_closure closure = {
> -		connector,
> -		edid,
> -		1,
> -		quirks,
> -		0
> +		.connector = connector,
> +		.edid = edid,
> +		.preferred = 1,
> +		.quirks = quirks,
>  	};
>  
>  	if (closure.preferred && !version_greater(edid, 1, 3))
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-- 
Daniel Vetter
Software Engineer, Intel Corporation
+41 (0) 79 365 57 48 - http://blog.ffwll.ch