Re: [alsa-devel] [PATCH 1/1] ALSA: add dummy function to support shared mmap in nommu Blackfin arch (v2)

On Tue, Sep 2, 2008 at 5:58 AM, Bryan Wu wrote:

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