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>
diff --git a/drivers/usb/gadget/f_phonet.c b/drivers/usb/gadget/f_phonet.c
index 16a509a..7cdcb63 100644
--- a/drivers/usb/gadget/f_phonet.c
+++ b/drivers/usb/gadget/f_phonet.c
@@ -298,11 +298,10 @@
static int
pn_rx_submit(struct f_phonet *fp, struct usb_request *req, gfp_t gfp_flags)
{
- struct net_device *dev = fp->dev;
struct page *page;
int err;
- page = __netdev_alloc_page(dev, gfp_flags);
+ page = alloc_page(gfp_flags);
if (!page)
return -ENOMEM;
@@ -312,7 +311,7 @@
err = usb_ep_queue(fp->out_ep, req, gfp_flags);
if (unlikely(err))
- netdev_free_page(dev, page);
+ put_page(page);
return err;
}
@@ -374,9 +373,9 @@
}
if (page)
- netdev_free_page(dev, page);
+ put_page(page);
if (req)
- pn_rx_submit(fp, req, GFP_ATOMIC);
+ pn_rx_submit(fp, req, GFP_ATOMIC | __GFP_COLD);
}
/*-------------------------------------------------------------------------*/
@@ -436,7 +435,7 @@
netif_carrier_on(dev);
for (i = 0; i < phonet_rxq_size; i++)
- pn_rx_submit(fp, fp->out_reqv[i], GFP_ATOMIC);
+ pn_rx_submit(fp, fp->out_reqv[i], GFP_ATOMIC | __GFP_COLD);
}
spin_unlock(&port->lock);
return 0;