diff options
Diffstat (limited to 'include/hw/xen/interface/io/ring.h')
| -rw-r--r-- | include/hw/xen/interface/io/ring.h | 9 |
1 files changed, 0 insertions, 9 deletions
diff --git a/include/hw/xen/interface/io/ring.h b/include/hw/xen/interface/io/ring.h index 5d048b335c..115705f3f4 100644 --- a/include/hw/xen/interface/io/ring.h +++ b/include/hw/xen/interface/io/ring.h @@ -206,21 +206,12 @@ typedef struct __name##_back_ring __name##_back_ring_t #define RING_HAS_UNCONSUMED_RESPONSES(_r) \ ((_r)->sring->rsp_prod - (_r)->rsp_cons) -#ifdef __GNUC__ #define RING_HAS_UNCONSUMED_REQUESTS(_r) ({ \ unsigned int req = (_r)->sring->req_prod - (_r)->req_cons; \ unsigned int rsp = RING_SIZE(_r) - \ ((_r)->req_cons - (_r)->rsp_prod_pvt); \ req < rsp ? req : rsp; \ }) -#else -/* Same as above, but without the nice GCC ({ ... }) syntax. */ -#define RING_HAS_UNCONSUMED_REQUESTS(_r) \ - ((((_r)->sring->req_prod - (_r)->req_cons) < \ - (RING_SIZE(_r) - ((_r)->req_cons - (_r)->rsp_prod_pvt))) ? \ - ((_r)->sring->req_prod - (_r)->req_cons) : \ - (RING_SIZE(_r) - ((_r)->req_cons - (_r)->rsp_prod_pvt))) -#endif /* Direct access to individual ring elements, by index. */ #define RING_GET_REQUEST(_r, _idx) \ |