提交 7003609b 编写于 作者: C Cliff Cai 提交者: Jaroslav Kysela

ALSA: add dummy function to support shared mmap in nommu Blackfin arch

Cc: Mike Frysinger <vapier.adi@gmail.com>
Signed-off-by: NCliff Cai <cliff.cai@analog.com>
Signed-off-by: NBryan Wu <cooloney@kernel.org>
Signed-off-by: NTakashi Iwai <tiwai@suse.de>
Signed-off-by: NJaroslav Kysela <perex@perex.cz>
上级 b7c9d852
......@@ -3385,6 +3385,17 @@ static int snd_pcm_hw_params_old_user(struct snd_pcm_substream *substream,
}
#endif /* CONFIG_SND_SUPPORT_OLD_API */
#ifndef CONFIG_MMU
unsigned long dummy_get_unmapped_area(struct file *file, unsigned long addr,
unsigned long len, unsigned long pgoff,
unsigned long flags)
{
return 0;
}
#else
# define dummy_get_unmapped_area NULL
#endif
/*
* Register section
*/
......@@ -3401,6 +3412,7 @@ const struct file_operations snd_pcm_f_ops[2] = {
.compat_ioctl = snd_pcm_ioctl_compat,
.mmap = snd_pcm_mmap,
.fasync = snd_pcm_fasync,
.get_unmapped_area = dummy_get_unmapped_area,
},
{
.owner = THIS_MODULE,
......@@ -3413,5 +3425,6 @@ const struct file_operations snd_pcm_f_ops[2] = {
.compat_ioctl = snd_pcm_ioctl_compat,
.mmap = snd_pcm_mmap,
.fasync = snd_pcm_fasync,
.get_unmapped_area = dummy_get_unmapped_area,
}
};
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