ec_verify_ctx_callbacks_sanity_check
ATTRIBUTE_WARN_UNUSED_RET int ec_verify_ctx_callbacks_sanity_check(const struct ec_verify_context *verify_ctx);
ret = ec_verify_ctx_callbacks_sanity_check(ctx); EG(ret, err);
ret = ec_verify_ctx_callbacks_sanity_check(ctx); EG(ret, err);