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authorCliff Cai <cliff.cai@analog.com>2008-09-03 10:54:36 +0200
committerJaroslav Kysela <perex@perex.cz>2008-09-04 11:06:34 +0200
commit7003609b3bdf0336c742974bd1ad2d82ffb3b043 (patch)
tree4741a0e689db87b97176b62876af43b8e044542e /sound/core
parentb7c9d8520564eca89da8733e5248c7ce8ee8e1b0 (diff)
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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>
Diffstat (limited to 'sound/core')
-rw-r--r--sound/core/pcm_native.c13
1 files changed, 13 insertions, 0 deletions
diff --git a/sound/core/pcm_native.c b/sound/core/pcm_native.c
index df2299a..e61e125 100644
--- a/sound/core/pcm_native.c
+++ b/sound/core/pcm_native.c
@@ -3385,6 +3385,17 @@ out:
}
#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,
}
};