[PATCH] doc: announce deprecation of cmdline_poll

[Stephen Hemminger]

Function was added by commit 067855e651d6 ("cmdline: add polling mode")
but never tested or used by DPDK applications. Mark it for
future removal.

Signed-off-by: Stephen Hemminger <stephen at networkplumber.org>
---
 doc/guides/rel_notes/deprecation.rst | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/doc/guides/rel_notes/deprecation.rst b/doc/guides/rel_notes/deprecation.rst
index 872847e938ed..28c458591a68 100644
--- a/doc/guides/rel_notes/deprecation.rst
+++ b/doc/guides/rel_notes/deprecation.rst
@@ -135,3 +135,8 @@ Deprecation Notices
   Its removal has been postponed to let potential users report interest
   in maintaining it.
   In the absence of such interest, this library will be removed in DPDK 23.11.
+
+* cmdline: The function ``cmdline_poll`` does not work correctly on either
+  Linux or Windows and is unused by any part of DPDK.
+  It will be marked deprecated
+  starting in the 23.07 relead and removed in DPDK 23.11.
-- 
2.39.2