net: remove netdev_alloc_page and use __GFP_COLD

Given we dont use anymore the struct net_device *dev argument, and this
interface brings litle benefit, remove netdev_{alloc|free}_page(), to
debloat include/linux/skbuff.h a bit.

(Some drivers used a mix of these interfaces and alloc_pages())

When allocating a page given to device for DMA transfer (device to
memory), it makes sense to use a cold one (__GFP_COLD)

Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
CC: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
CC: Dimitris Michailidis <dm@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 0 insertions, 32 deletions

diff --git a/include/linux/skbuff.h b/include/linux/skbuff.h
index 09b7ea566d66..cec0657d0d32 100644
--- a/include/linux/skbuff.h
+++ b/include/linux/skbuff.h
@@ -1669,38 +1669,6 @@ static inline struct sk_buff *netdev_alloc_skb_ip_align(struct net_device *dev,
 }
 
 /**
- *      __netdev_alloc_page - allocate a page for ps-rx on a specific device
- *      @dev: network device to receive on
- *      @gfp_mask: alloc_pages_node mask
- *
- *      Allocate a new page. dev currently unused.
- *
- *      %NULL is returned if there is no free memory.
- */
-static inline struct page *__netdev_alloc_page(struct net_device *dev, gfp_t gfp_mask)
-{
-        return alloc_pages_node(NUMA_NO_NODE, gfp_mask, 0);
-}
-
-/**
- *      netdev_alloc_page - allocate a page for ps-rx on a specific device
- *      @dev: network device to receive on
- *
- *      Allocate a new page. dev currently unused.
- *
- *      %NULL is returned if there is no free memory.
- */
-static inline struct page *netdev_alloc_page(struct net_device *dev)
-{
-        return __netdev_alloc_page(dev, GFP_ATOMIC);
-}
-
-static inline void netdev_free_page(struct net_device *dev, struct page *page)
-{
-        __free_page(page);
-}
-
-/**
  * skb_frag_page - retrieve the page refered to by a paged fragment
  * @frag: the paged fragment
  *