Searched refs:CIRC_CNT (Results 1 – 2 of 2) sorted by relevance
16 #define CIRC_CNT(head,tail,size) (((head) - (tail)) & ((size)-1)) macro21 #define CIRC_SPACE(head,tail,size) CIRC_CNT((tail),((head)+1),(size))
457 (CIRC_CNT((circ)->head, (circ)->tail, UART_XMIT_SIZE))