Two fixes for nullness elision. See commits for more details.

=== Changelog ===
Changes from v1:
* Reword commit message in patch 1
* Add tags

Daniel Xu (3):
  bpf: verifier: Do not extract constant map keys for irrelevant maps
  bpf: selftests: Test constant key extraction on irrelevant maps
  bpf: verifier: Disambiguate get_constant_map_key() errors

 kernel/bpf/verifier.c                         | 29 ++++++++++++++-----
 .../bpf/progs/verifier_array_access.c         | 15 ++++++++++
 2 files changed, 36 insertions(+), 8 deletions(-)

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2.47.1