KCOV_BUF_MAX_ENTRIES
if (nent < 2 || nent > KCOV_BUF_MAX_ENTRIES)
error = kcov_allocbuf(kd, KCOV_BUF_MAX_ENTRIES);
if (size > KCOV_BUF_MAX_ENTRIES * KCOV_ENTRY_SIZE)
if (off > KCOV_BUF_MAX_ENTRIES * KCOV_ENTRY_SIZE)