[dpdk-dev] [PATCH 1/1] doc: add deprecation notice for CPU build flags

[Bruce Richardson <bruce.richardson@intel.com>]

The RTE_MACHINE_CPUFLAGS_* macros in DPDK build just duplicate info from
the compiler macros, so we can remove them and just use the compiler
versions directly.

Signed-off-by: Bruce Richardson <bruce.richardson@intel.com>
---
 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 ea4cfa7a4..68a63f345 100644
--- a/doc/guides/rel_notes/deprecation.rst
+++ b/doc/guides/rel_notes/deprecation.rst
@@ -17,6 +17,11 @@ Deprecation Notices
   can be got using the ``pip``, or ``pip3``, tool for downloading python
   packages.
 
+* build macros: The macros defining RTE_MACHINE_CPUFLAG_* will be removed
+  from the build. The information provided by these macros is available
+  through standard compiler macros. For example, RTE_MACHINE_CPUFLAG_SSE3
+  duplicates the compiler-provided macro __SSE3__.
+
 * kvargs: The function ``rte_kvargs_process`` will get a new parameter
   for returning key match count. It will ease handling of no-match case.
 
-- 
2.25.1