sgx_sigstruct
static int sgx_encl_init(struct sgx_encl *encl, struct sgx_sigstruct *sigstruct,
struct sgx_sigstruct *sigstruct;
if (WARN_ON_ONCE(!access_ok(sigstruct, sizeof(struct sgx_sigstruct)) ||
struct sgx_sigstruct sigstruct;
struct sgx_sigstruct *sigstruct = &encl->sigstruct;