| From | Yury Norov <> | Subject | [PATCH 30/49] ixgbe: replace bitmap_weight with bitmap_weight_eq | Date | Thu, 10 Feb 2022 14:49:14 -0800 |
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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@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
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