diff options
Diffstat (limited to 'drivers/net/ixgbe/ixgbe.h')
| -rw-r--r-- | drivers/net/ixgbe/ixgbe.h | 10 |
1 files changed, 7 insertions, 3 deletions
diff --git a/drivers/net/ixgbe/ixgbe.h b/drivers/net/ixgbe/ixgbe.h index d6bfb2f6ba8..b1d4b02606a 100644 --- a/drivers/net/ixgbe/ixgbe.h +++ b/drivers/net/ixgbe/ixgbe.h @@ -306,9 +306,13 @@ struct ixgbe_q_vector { ((_eitr) ? (1000000000 / ((_eitr) * 256)) : 8) #define EITR_REG_TO_INTS_PER_SEC EITR_INTS_PER_SEC_TO_REG -#define IXGBE_DESC_UNUSED(R) \ - ((((R)->next_to_clean > (R)->next_to_use) ? 0 : (R)->count) + \ - (R)->next_to_clean - (R)->next_to_use - 1) +static inline u16 ixgbe_desc_unused(struct ixgbe_ring *ring) +{ + u16 ntc = ring->next_to_clean; + u16 ntu = ring->next_to_use; + + return ((ntc > ntu) ? 0 : ring->count) + ntc - ntu - 1; +} #define IXGBE_RX_DESC_ADV(R, i) \ (&(((union ixgbe_adv_rx_desc *)((R)->desc))[i])) |