fix getBpfSupportLevel() cache wrt. multi-threading

In case it happens to get called twice in parallel on
startup.  It's never a mistake to do extra calls to the
uncached version.

Test: build, atest
Signed-off-by: Maciej Żenczykowski <maze@google.com>
Change-Id: I2605ed2ebc4ee331b2ca6c9fa915203d70415d7f
1 file changed
tree: cba488801a8469df9aea3ea8d441d468ac0bb034
  1. bpfloader/
  2. libbpf_android/
  3. progs/
  4. Android.bp
  5. MODULE_LICENSE_APACHE2
  6. NOTICE
  7. OWNERS
  8. PREUPLOAD.cfg