vma->vm_end - vma->vm_start, vma->vm_page_prot);
 }
 
-struct snd_pcm_ops atmel_pcm_ops = {
+static struct snd_pcm_ops atmel_pcm_ops = {
        .open           = atmel_pcm_open,
        .close          = atmel_pcm_close,
        .ioctl          = snd_pcm_lib_ioctl,
 
        return 0;
 }
 
-struct snd_pcm_ops au1xpsc_pcm_ops = {
+static struct snd_pcm_ops au1xpsc_pcm_ops = {
        .open           = au1xpsc_pcm_open,
        .close          = au1xpsc_pcm_close,
        .ioctl          = snd_pcm_lib_ioctl,
 
 }
 #endif
 
-struct snd_pcm_ops bf5xx_pcm_ac97_ops = {
+static struct snd_pcm_ops bf5xx_pcm_ac97_ops = {
        .open           = bf5xx_pcm_open,
        .ioctl          = snd_pcm_lib_ioctl,
        .hw_params      = bf5xx_pcm_hw_params,
 
        return 0 ;
 }
 
-struct snd_pcm_ops bf5xx_pcm_i2s_ops = {
+static struct snd_pcm_ops bf5xx_pcm_i2s_ops = {
        .open           = bf5xx_pcm_open,
        .ioctl          = snd_pcm_lib_ioctl,
        .hw_params      = bf5xx_pcm_hw_params,
 
                                     runtime->dma_bytes);
 }
 
-struct snd_pcm_ops davinci_pcm_ops = {
+static struct snd_pcm_ops davinci_pcm_ops = {
        .open =         davinci_pcm_open,
        .close =        davinci_pcm_close,
        .ioctl =        snd_pcm_lib_ioctl,
 
                                     runtime->dma_bytes);
 }
 
-struct snd_pcm_ops omap_pcm_ops = {
+static struct snd_pcm_ops omap_pcm_ops = {
        .open           = omap_pcm_open,
        .close          = omap_pcm_close,
        .ioctl          = snd_pcm_lib_ioctl,