commit cc68516bd25741ff3f3c10cf6b513689b02c7538
author Shawn Willden <swillden@google.com> Thu Apr 22 13:28:19 2021 -0600
committer Shawn Willden <swillden@google.com> Mon May 03 09:08:12 2021 -0600
tree 95717a09dfd613fe53ab30368e13f830f96aa54f
parent c46f9da49f91c503959af7f2ba210b97d4d0e920

Make keymaster optional.

Keymaster is now optional because KeyMint can be used instead.  This
CL makes this change retroactively back to compatibility matrix v3,
per discussion with the Treble team.

Test: Replace Keymaster with KeyMint & build
Change-Id: Id26d5bac326c494e1810516582fdd56a42c04e0d

compatibility_matrices/compatibility_matrix.current.xml

diff --git a/compatibility_matrices/compatibility_matrix.current.xml b/compatibility_matrices/compatibility_matrix.current.xml
index 30af25f..039ea84 100644
--- a/compatibility_matrices/compatibility_matrix.current.xml
+++ b/compatibility_matrices/compatibility_matrix.current.xml
@@ -297,7 +297,7 @@
             <instance>default</instance>
         </interface>
     </hal>
-    <hal format="hidl" optional="false">
+    <hal format="hidl" optional="true">
         <name>android.hardware.keymaster</name>
         <version>3.0</version>
         <version>4.0-1</version>