Re: [Blackfin removal] [PATCH 11/28] misc: Remove Blackfin DSP echo support

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Yes can confirm - I've recently been contacted be end-users of the module. It provides effective software based echo cancellation for users of the Asterisk IP-PBX.

Thanks,

David

On 16/03/18 02:55, gregkh wrote:
On Thu, Mar 15, 2018 at 04:54:11PM +0100, Arnd Bergmann wrote:
On Thu, Mar 15, 2018 at 11:50 AM, Aaron Wu <aaron.wu@xxxxxxxxxx> wrote:
Signed-off-by: Aaron Wu <aaron.wu@xxxxxxxxxx>

Remove Blackfin DSP echo support
---
  drivers/misc/echo/echo.c | 73 ------------------------------------------------
  drivers/misc/echo/fir.h  | 50 ---------------------------------
  2 files changed, 123 deletions(-)

I had picked up this patch at first, but now took a closer look and found no
users of this module. It sounds to me like we should remove the entire
directory rather than just the blackfin portion.

Adding the original authors to Cc for clarification.

The echo "driver" is used by Asterix systems.  It seems to be the only
driver that ended up getting merged upstream from that huge mess.  So
there are users of it, or at least there were, I don't know how popular
Asterix is these days.

thanks,

greg k-h




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