[Intel-wired-lan] [PATCH 30/49] ixgbe: replace bitmap_weight with bitmap_weight_eq
Yury Norov
yury.norov at gmail.com
Thu Feb 10 22:49:14 UTC 2022
ixgbe_disable_sriov calls bitmap_weight() to compare the weight of bitmap
with a given number. We can do it more efficiently with bitmap_weight_eq
because conditional bitmap_weight may stop traversing the bitmap earlier,
as soon as condition is (or can't be) met.
Signed-off-by: Yury Norov <yury.norov at gmail.com>
---
drivers/net/ethernet/intel/ixgbe/ixgbe_sriov.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe_sriov.c b/drivers/net/ethernet/intel/ixgbe/ixgbe_sriov.c
index 214a38de3f41..35297d8a488b 100644
--- a/drivers/net/ethernet/intel/ixgbe/ixgbe_sriov.c
+++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_sriov.c
@@ -246,7 +246,7 @@ int ixgbe_disable_sriov(struct ixgbe_adapter *adapter)
#endif
/* Disable VMDq flag so device will be set in VM mode */
- if (bitmap_weight(adapter->fwd_bitmask, adapter->num_rx_pools) == 1) {
+ if (bitmap_weight_eq(adapter->fwd_bitmask, adapter->num_rx_pools, 1)) {
adapter->flags &= ~IXGBE_FLAG_VMDQ_ENABLED;
adapter->flags &= ~IXGBE_FLAG_SRIOV_ENABLED;
rss = min_t(int, ixgbe_max_rss_indices(adapter),
--
2.32.0
More information about the Intel-wired-lan
mailing list