spi_chunk_q
SIMPLEQ_HEAD(,spi_chunk_q) ck_q;
struct spi_chunk_q *ce;
ce = kmem_alloc(sizeof(struct spi_chunk_q),KM_NOSLEEP);
kmem_free(ce, sizeof(struct spi_chunk_q));
SIMPLEQ_ENTRY(spi_chunk_q) chunk_q;