[PATCH 3.16 159/212] net/mlx4_en: Use __skb_fill_page_desc()

From: Ben Hutchings
Date: Thu Jun 01 2017 - 12:16:47 EST


3.16.44-rc1 review patch. If anyone has any objections, please let me know.

------------------

From: Eric Dumazet <edumazet@xxxxxxxxxx>

commit 7f0137e2ef9f32143df623001a96f7aab61a9595 upstream.

Or we might miss the fact that a page was allocated from memory reserves.

Fixes: dceeab0e5258 ("mlx4: support __GFP_MEMALLOC for rx")
Signed-off-by: Eric Dumazet <edumazet@xxxxxxxxxx>
Signed-off-by: Tariq Toukan <tariqt@xxxxxxxxxxxx>
Signed-off-by: David S. Miller <davem@xxxxxxxxxxxxx>
Signed-off-by: Ben Hutchings <ben@xxxxxxxxxxxxxxx>
---
drivers/net/ethernet/mellanox/mlx4/en_rx.c | 8 ++++----
1 file changed, 4 insertions(+), 4 deletions(-)

--- a/drivers/net/ethernet/mellanox/mlx4/en_rx.c
+++ b/drivers/net/ethernet/mellanox/mlx4/en_rx.c
@@ -565,10 +565,10 @@ static int mlx4_en_complete_rx_desc(stru
dma_sync_single_for_cpu(priv->ddev, dma, frag_info->frag_size,
DMA_FROM_DEVICE);

- /* Save page reference in skb */
- __skb_frag_set_page(&skb_frags_rx[nr], frags[nr].page);
- skb_frag_size_set(&skb_frags_rx[nr], frag_info->frag_size);
- skb_frags_rx[nr].page_offset = frags[nr].page_offset;
+ __skb_fill_page_desc(skb, nr, frags[nr].page,
+ frags[nr].page_offset,
+ frag_info->frag_size);
+
skb->truesize += frag_info->frag_stride;
frags[nr].page = NULL;
}