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4ef77dd584
Reimplement libbpf_sha256() using some basic SHA-256 C code. This
eliminates the newly-added dependency on AF_ALG, which is a problematic
UAPI that is not supported by all kernels.
Make libbpf_sha256() return void, since it can no longer fail. This
simplifies some callers. Also drop the unnecessary 'sha_out_sz'
parameter. Finally, also fix the typo in "compute_sha_udpate_offsets".
Fixes: c297fe3e9f ("libbpf: Implement SHA256 internal helper")
Signed-off-by: Eric Biggers <ebiggers@kernel.org>
Link: https://lore.kernel.org/r/20250928003833.138407-1-ebiggers@kernel.org
Signed-off-by: Alexei Starovoitov <ast@kernel.org>