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i40e: remove unnecessary cleaned_count updates 

For performance reasons, remove the redundant updates of the cleaned_count
variable, as its value can be computed based on the ring next-to-clean
variable, which is consistently updated.

Signed-off-by: Cristian Dumitrescu <cristian.dumitrescu@intel.com>
Tested-by: Kiran Bhandare <kiranx.bhandare@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
This commit is contained in:
Cristian Dumitrescu 2021-01-14 14:33:16 +00:00 committed by Tony Nguyen
parent c8a8ca3408
commit f12738b6ec
1 changed files with 1 additions and 3 deletions
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4
drivers/net/ethernet/intel/i40e/i40e_xsk.c
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@ -300,7 +300,6 @@ int i40e_clean_rx_irq_zc(struct i40e_ring *rx_ring, int budget)
bi = i40e_rx_bi(rx_ring, next_to_clean);
xsk_buff_free(*bi);
*bi = NULL;
cleaned_count++;
next_to_clean = (next_to_clean + 1) & count_mask;
continue;
}
@ -325,7 +324,6 @@ int i40e_clean_rx_irq_zc(struct i40e_ring *rx_ring, int budget)
total_rx_bytes += size;
total_rx_packets++;
cleaned_count++;
next_to_clean = (next_to_clean + 1) & count_mask;
continue;
}
@ -344,7 +342,6 @@ int i40e_clean_rx_irq_zc(struct i40e_ring *rx_ring, int budget)
}
*bi = NULL;
cleaned_count++;
next_to_clean = (next_to_clean + 1) & count_mask;
if (eth_skb_pad(skb))
@ -358,6 +355,7 @@ int i40e_clean_rx_irq_zc(struct i40e_ring *rx_ring, int budget)
}
rx_ring->next_to_clean = next_to_clean;
cleaned_count = (next_to_clean - rx_ring->next_to_use - 1) & count_mask;
if (cleaned_count >= I40E_RX_BUFFER_WRITE)
failure = !i40e_alloc_rx_buffers_zc(rx_ring, cleaned_count);