ALSA: add dummy function to support shared mmap in nommu Blackfin arch
Cc: Mike Frysinger <vapier.adi@gmail.com> Signed-off-by: Cliff Cai <cliff.cai@analog.com> Signed-off-by: Bryan Wu <cooloney@kernel.org> Signed-off-by: Takashi Iwai <tiwai@suse.de> Signed-off-by: Jaroslav Kysela <perex@perex.cz>
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@ -3385,6 +3385,17 @@ out:
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}
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#endif /* CONFIG_SND_SUPPORT_OLD_API */
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#ifndef CONFIG_MMU
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unsigned long dummy_get_unmapped_area(struct file *file, unsigned long addr,
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unsigned long len, unsigned long pgoff,
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unsigned long flags)
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{
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return 0;
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}
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#else
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# define dummy_get_unmapped_area NULL
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#endif
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/*
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* Register section
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*/
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@ -3401,6 +3412,7 @@ const struct file_operations snd_pcm_f_ops[2] = {
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.compat_ioctl = snd_pcm_ioctl_compat,
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.mmap = snd_pcm_mmap,
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.fasync = snd_pcm_fasync,
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.get_unmapped_area = dummy_get_unmapped_area,
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},
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{
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.owner = THIS_MODULE,
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@ -3413,5 +3425,6 @@ const struct file_operations snd_pcm_f_ops[2] = {
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.compat_ioctl = snd_pcm_ioctl_compat,
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.mmap = snd_pcm_mmap,
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.fasync = snd_pcm_fasync,
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.get_unmapped_area = dummy_get_unmapped_area,
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}
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};
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