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Commit f07639ad authored by Pekka Enberg's avatar Pekka Enberg Committed by Greg Kroah-Hartman
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Staging: echo: remove dead code 



This patch removes dead code that is wrapped in #ifndef __KERNEL__.

Cc: David Rowe <david@rowetel.com>
Cc: Steve Underwood <steveu@coppice.org>
Signed-off-by: default avatarPekka Enberg <penberg@cs.helsinki.fi>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@suse.de>
parent db2af149

drivers/staging/echo/fir.h

+0 −45
Original line number Diff line number Diff line
@@ -312,51 +312,6 @@ static __inline__ int16_t fir32(fir32_state_t *fir, int16_t sample) 
}

/*- End of function --------------------------------------------------------*/



#ifndef __KERNEL__

static __inline__ const float *fir_float_create(fir_float_state_t *fir,

                                                const float *coeffs,

    	    	    	                        int taps)

{

    fir->taps = taps;

    fir->curr_pos = taps - 1;

    fir->coeffs = coeffs;

    fir->history = (float *) malloc(taps*sizeof(float));

    if (fir->history)

        memset(fir->history, '\0', taps*sizeof(float));

    return fir->history;

}

/*- End of function --------------------------------------------------------*/



static __inline__ void fir_float_free(fir_float_state_t *fir)

{

    free(fir->history);

}

/*- End of function --------------------------------------------------------*/



static __inline__ int16_t fir_float(fir_float_state_t *fir, int16_t sample)

{

    int i;

    float y;

    int offset1;

    int offset2;



    fir->history[fir->curr_pos] = sample;



    offset2 = fir->curr_pos;

    offset1 = fir->taps - offset2;

    y = 0;

    for (i = fir->taps - 1;  i >= offset1;  i--)

        y += fir->coeffs[i]*fir->history[i - offset1];

    for (  ;  i >= 0;  i--)

        y += fir->coeffs[i]*fir->history[i + offset2];

    if (fir->curr_pos <= 0)

    	fir->curr_pos = fir->taps;

    fir->curr_pos--;

    return  (int16_t) y;

}

/*- End of function --------------------------------------------------------*/

#endif



#ifdef __cplusplus

}

#endif