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net: Take common prefetch code structure into a function

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Many device drivers use the same prefetch code structure to
deal with small L1 cacheline size.
Take this code into a function and call it from the drivers.

Suggested-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: Tariq Toukan <tariqt@mellanox.com>
Reviewed-by: Saeed Mahameed <saeedm@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Tariq Toukan
2020-08-26 15:54:16 +03:00
committed by David S. Miller
parent 04e006b483
commit f468f21b7a
12 changed files with 39 additions and 72 deletions
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5
drivers/net/ethernet/intel/fm10k/fm10k_main.c
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@@ -310,10 +310,7 @@ static struct sk_buff *fm10k_fetch_rx_buffer(struct fm10k_ring *rx_ring,
rx_buffer->page_offset;
/* prefetch first cache line of first page */
prefetch(page_addr);
#if L1_CACHE_BYTES < 128
prefetch((void *)((u8 *)page_addr + L1_CACHE_BYTES));
#endif
net_prefetch(page_addr);
/* allocate a skb to store the frags */
skb = napi_alloc_skb(&rx_ring->q_vector->napi,