On Tue, Sep 2, 2008 at 5:58 AM, Bryan Wu wrote:
quoted text
> From: Cliff Cai <cliff.cai@analog.com>
>
> v1-v2:
>  - only adding this dummy function in nommu arch
>
> Signed-off-by: Cliff Cai <cliff.cai@analog.com>
> Signed-off-by: Bryan Wu <cooloney@kernel.org>
> ---
>  sound/core/pcm_native.c |   14 ++++++++++++++
>  1 files changed, 14 insertions(+), 0 deletions(-)
>
> diff --git a/sound/core/pcm_native.c b/sound/core/pcm_native.c
> index c49b9d9..1e88cde 100644
> --- a/sound/core/pcm_native.c
> +++ b/sound/core/pcm_native.c
> @@ -3391,6 +3391,14 @@ 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;
> +}
> +#endif

if you had:
#else
# define dummy_get_unmapped_area NULL
#endif
then you could avoid #ifdef in the rest of the file ...
-mike
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