At Wed, 27 Aug 2008 17:39:28 +0800, Bryan Wu wrote:
From: Cliff Cai cliff.cai@analog.com
Signed-off-by: Cliff Cai cliff.cai@analog.com Signed-off-by: Bryan Wu cooloney@kernel.org
sound/core/pcm_native.c | 8 ++++++++ 1 files changed, 8 insertions(+), 0 deletions(-)
diff --git a/sound/core/pcm_native.c b/sound/core/pcm_native.c index c49b9d9..cb202a1 100644 --- a/sound/core/pcm_native.c +++ b/sound/core/pcm_native.c @@ -3391,6 +3391,12 @@ out: } #endif /* CONFIG_SND_SUPPORT_OLD_API */
+unsigned long dummy_get_unmapped_area(struct file *file, unsigned long addr,
unsigned long len, unsigned long pgoff, unsigned long flags)+{
- return 0;
+}
Always zero is confirmed to work for other architectures, too?
/*
- Register section
*/ @@ -3407,6 +3413,7 @@ 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,@@ -3419,5 +3426,6 @@ 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,};
I don't think adding this dummy get_unmapped_area unconditionally for every driver is good. This overrides the default mm->get_unmaped_area.
Takashi