Re: [Outreachy kernel] [PATCH v3 4/4] staging: sm750fb: Remove typedefs

[Julia Lawall <julia.lawall@lip6.fr>]

On Tue, 14 Mar 2017, Arushi Singhal wrote:

> This patch removes typedefs from structures and renames them as per
> kernel coding standards.

Greg requested that typedef removing patches adjust only one patch at a
time.

The names of the types typically need to be adjusted as compared to what
is in the typedef.  In your cases, the type names begin with _ and end
with _t.  Beginning with _ means that something is sort of internal,
rarely used etc.  That made sense when there was a typedef, but since you
are removing that, the _ at the front should go too.  Likewise, _t is an
extension that indicates a typedef, but you don't have that any more, so
the _t should be dropped too.

Finally, the log message talks about structures, but the changes involve
one structure and one enum.  The log message should describe everything
that has changed.

julia

>
> Signed-off-by: Arushi Singhal <arushisinghal19971997@gmail.com>
> ---
>  drivers/staging/sm750fb/ddk750_mode.c |  6 +++---
>  drivers/staging/sm750fb/ddk750_mode.h | 20 +++++++++-----------
>  drivers/staging/sm750fb/sm750_hw.c    |  2 +-
>  3 files changed, 13 insertions(+), 15 deletions(-)
>
> diff --git a/drivers/staging/sm750fb/ddk750_mode.c b/drivers/staging/sm750fb/ddk750_mode.c
> index eea5aef2956f..25da678179f7 100644
> --- a/drivers/staging/sm750fb/ddk750_mode.c
> +++ b/drivers/staging/sm750fb/ddk750_mode.c
> @@ -12,7 +12,7 @@
>   * HW only supports 7 predefined pixel clocks, and clock select is
>   * in bit 29:27 of Display Control register.
>   */
> -static unsigned long displayControlAdjust_SM750LE(mode_parameter_t *pModeParam, unsigned long dispControl)
> +static unsigned long displayControlAdjust_SM750LE(struct _mode_parameter_t *pModeParam, unsigned long dispControl)
>  {
>  	unsigned long x, y;
>
> @@ -72,7 +72,7 @@ static unsigned long displayControlAdjust_SM750LE(mode_parameter_t *pModeParam,
>  }
>
>  /* only timing related registers will be  programed */
> -static int programModeRegisters(mode_parameter_t *pModeParam, struct pll_value *pll)
> +static int programModeRegisters(struct _mode_parameter_t *pModeParam, struct pll_value *pll)
>  {
>  	int ret = 0;
>  	int cnt = 0;
> @@ -198,7 +198,7 @@ static int programModeRegisters(mode_parameter_t *pModeParam, struct pll_value *
>  	return ret;
>  }
>
> -int ddk750_setModeTiming(mode_parameter_t *parm, clock_type_t clock)
> +int ddk750_setModeTiming(struct _mode_parameter_t *parm, clock_type_t clock)
>  {
>  	struct pll_value pll;
>  	unsigned int uiActualPixelClk;
> diff --git a/drivers/staging/sm750fb/ddk750_mode.h b/drivers/staging/sm750fb/ddk750_mode.h
> index 6d204b8b4a01..5f8347d87800 100644
> --- a/drivers/staging/sm750fb/ddk750_mode.h
> +++ b/drivers/staging/sm750fb/ddk750_mode.h
> @@ -3,37 +3,35 @@
>
>  #include "ddk750_chip.h"
>
> -typedef enum _spolarity_t {
> +enum _spolarity_t {
>  	POS = 0, /* positive */
>  	NEG, /* negative */
> -}
> -spolarity_t;
> +};
>
> -typedef struct _mode_parameter_t {
> +struct _mode_parameter_t {
>  	/* Horizontal timing. */
>  	unsigned long horizontal_total;
>  	unsigned long horizontal_display_end;
>  	unsigned long horizontal_sync_start;
>  	unsigned long horizontal_sync_width;
> -	spolarity_t horizontal_sync_polarity;
> +	enum _spolarity_t horizontal_sync_polarity;
>
>  	/* Vertical timing. */
>  	unsigned long vertical_total;
>  	unsigned long vertical_display_end;
>  	unsigned long vertical_sync_start;
>  	unsigned long vertical_sync_height;
> -	spolarity_t vertical_sync_polarity;
> +	enum _spolarity_t vertical_sync_polarity;
>
>  	/* Refresh timing. */
>  	unsigned long pixel_clock;
>  	unsigned long horizontal_frequency;
> -	unsigned long vertical_frequency;
> +	enum _spolarity_t vertical_frequency;
>
>  	/* Clock Phase. This clock phase only applies to Panel. */
> -	spolarity_t clock_phase_polarity;
> -}
> -mode_parameter_t;
> +	enum _spolarity_t clock_phase_polarity;
> +};
>
> -int ddk750_setModeTiming(mode_parameter_t *parm, clock_type_t clock);
> +int ddk750_setModeTiming(struct _mode_parameter_t *parm, clock_type_t clock);
>
>  #endif
> diff --git a/drivers/staging/sm750fb/sm750_hw.c b/drivers/staging/sm750fb/sm750_hw.c
> index fab3fc9c8330..4233e0bf12a7 100644
> --- a/drivers/staging/sm750fb/sm750_hw.c
> +++ b/drivers/staging/sm750fb/sm750_hw.c
> @@ -252,7 +252,7 @@ int hw_sm750_crtc_setMode(struct lynxfb_crtc *crtc,
>  {
>  	int ret, fmt;
>  	u32 reg;
> -	mode_parameter_t modparm;
> +	struct _mode_parameter_t modparm;
>  	clock_type_t clock;
>  	struct sm750_dev *sm750_dev;
>  	struct lynxfb_par *par;
> --
> 2.11.0
>
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