Re: [PATCH RFC 24/91] [media] em28xx-dvb: don't initialize drx-d non-used fields with zero

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On 27.12.2011 02:08, Mauro Carvalho Chehab wrote:
> There's no need to initialize unused fields with zero, as Kernel does
> it automatically. Don't do that, in order to save some space at the
> data segment.

No space is saved for members of a struct, unless the complete struct is
initialized to zero.

Anyway, it improves readability.

> This also allows the removal of the unused pll_set callback.
> 
> Signed-off-by: Mauro Carvalho Chehab <mchehab@xxxxxxxxxx>
> ---
>  drivers/media/video/em28xx/em28xx-dvb.c |   10 ++++++----
>  1 files changed, 6 insertions(+), 4 deletions(-)
> 
> diff --git a/drivers/media/video/em28xx/em28xx-dvb.c b/drivers/media/video/em28xx/em28xx-dvb.c
> index 3868c1e..28be043 100644
> --- a/drivers/media/video/em28xx/em28xx-dvb.c
> +++ b/drivers/media/video/em28xx/em28xx-dvb.c
> @@ -302,10 +302,12 @@ static struct zl10353_config em28xx_zl10353_xc3028_no_i2c_gate = {
>  };
>  
>  static struct drxd_config em28xx_drxd = {
> -	.index = 0, .demod_address = 0x70, .demod_revision = 0xa2,
> -	.demoda_address = 0x00, .pll_address = 0x00,
> -	.pll_type = DRXD_PLL_NONE, .clock = 12000, .insert_rs_byte = 1,
> -	.pll_set = NULL, .osc_deviation = NULL, .IF = 42800000,
> +	.demod_address = 0x70,
> +	.demod_revision = 0xa2,
> +	.pll_type = DRXD_PLL_NONE,
> +	.clock = 12000,
> +	.insert_rs_byte = 1,
> +	.IF = 42800000,
>  	.disable_i2c_gate_ctrl = 1,
>  };
>  

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