From 298cf86ab17867492e9131a772f40da47b50f14d Mon Sep 17 00:00:00 2001
From: Carl Pearson <cwpears@sandia.gov>
Date: Fri, 5 Apr 2024 10:53:55 -0600
Subject: [PATCH] Remove unused packing traits

---
 cmake/Config.cmake.in     | 10 +++++++++-
 src/KokkosComm_traits.hpp | 12 ------------
 2 files changed, 9 insertions(+), 13 deletions(-)

diff --git a/cmake/Config.cmake.in b/cmake/Config.cmake.in
index 877f3e24..33a42e6a 100644
--- a/cmake/Config.cmake.in
+++ b/cmake/Config.cmake.in
@@ -1,10 +1,18 @@
 @PACKAGE_INIT@
 
+set(KOKKOSCOMM_ENABLE_MDSPAN "@KOKKOSCOMM_ENABLE_MDSPAN@")
+set(KOKKOSCOMM_USE_KOKKOS_MDSPAN "@KOKKOSCOMM_USE_KOKKOS_MDSPAN@")
+
+include(CMakeFindDependencyMacro)
+if(KOKKOSCOMM_ENABLE_MDSPAN AND KOKKOSCOMM_USE_KOKKOS_MDSPAN)
+  find_dependency(mdspan)
+endif()
+
 GET_FILENAME_COMPONENT(KokkosComm_CMAKE_DIR "${CMAKE_CURRENT_LIST_FILE}" PATH)
 INCLUDE("${KokkosComm_CMAKE_DIR}/KokkosCommTargets.cmake")
 UNSET(KokkosComm_CMAKE_DIR)
 
-include(CMakeFindDependencyMacro)
+
 find_dependency(MPI)
 find_dependency(Kokkos)
 
diff --git a/src/KokkosComm_traits.hpp b/src/KokkosComm_traits.hpp
index 96d232d6..1d5b860a 100644
--- a/src/KokkosComm_traits.hpp
+++ b/src/KokkosComm_traits.hpp
@@ -49,18 +49,6 @@ struct Traits<View> {
   static size_t extent(const View &v, const int i) { return v.extent(i); }
   static size_t stride(const View &v, const int i) { return v.stride(i); }
 
-  template <typename ExecSpace>
-  static void pack(const ExecSpace &space,
-                   const non_const_packed_view_type &dst, const View &src) {
-    Kokkos::deep_copy(space, dst, src);
-  }
-
-  template <typename ExecSpace>
-  static void unpack(const ExecSpace &space, const View &dst,
-                     const non_const_packed_view_type &src) {
-    Kokkos::deep_copy(space, dst, src);
-  }
-
   static constexpr bool is_reference_counted() { return true; }
 
   static constexpr size_t rank() { return View::rank; }