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r8152: use alloc_pages for rx buffer

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Replace kmalloc_node() with alloc_pages() for rx buffer.

Signed-off-by: Hayes Wang <hayeswang@realtek.com>
Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
This commit is contained in:
Hayes Wang 2019-08-13 11:42:07 +08:00 committed by Jakub Kicinski
parent 252df8b866
commit d55d70894c
1 changed files with 11 additions and 20 deletions
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31
drivers/net/usb/r8152.c
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@ -698,8 +698,8 @@ struct rx_agg {
struct list_head list, info_list;
struct urb *urb;
struct r8152 *context;
struct page *page;
void *buffer;
void *head;
};
struct tx_agg {
@ -1476,7 +1476,7 @@ static void free_rx_agg(struct r8152 *tp, struct rx_agg *agg)
list_del(&agg->info_list);
usb_free_urb(agg->urb);
kfree(agg->buffer);
__free_pages(agg->page, get_order(tp->rx_buf_sz));
kfree(agg);
atomic_dec(&tp->rx_count);
@ -1486,28 +1486,19 @@ static struct rx_agg *alloc_rx_agg(struct r8152 *tp, gfp_t mflags)
{
struct net_device *netdev = tp->netdev;
int node = netdev->dev.parent ? dev_to_node(netdev->dev.parent) : -1;
unsigned int order = get_order(tp->rx_buf_sz);
struct rx_agg *rx_agg;
unsigned long flags;
u8 *buf;
rx_agg = kmalloc_node(sizeof(*rx_agg), mflags, node);
if (!rx_agg)
return NULL;
buf = kmalloc_node(tp->rx_buf_sz, mflags, node);
if (!buf)
rx_agg->page = alloc_pages(mflags, order);
if (!rx_agg->page)
goto free_rx;
if (buf != rx_agg_align(buf)) {
kfree(buf);
buf = kmalloc_node(tp->rx_buf_sz + RX_ALIGN, mflags,
node);
if (!buf)
goto free_rx;
}
rx_agg->buffer = buf;
rx_agg->head = rx_agg_align(buf);
rx_agg->buffer = page_address(rx_agg->page);
rx_agg->urb = usb_alloc_urb(0, mflags);
if (!rx_agg->urb)
@ -1526,7 +1517,7 @@ static struct rx_agg *alloc_rx_agg(struct r8152 *tp, gfp_t mflags)
return rx_agg;
free_buf:
kfree(rx_agg->buffer);
__free_pages(rx_agg->page, order);
free_rx:
kfree(rx_agg);
return NULL;
@ -2003,8 +1994,8 @@ static int rx_bottom(struct r8152 *tp, int budget)
if (urb->actual_length < ETH_ZLEN)
goto submit;
rx_desc = agg->head;
rx_data = agg->head;
rx_desc = agg->buffer;
rx_data = agg->buffer;
len_used += sizeof(struct rx_desc);
while (urb->actual_length > len_used) {
@ -2051,7 +2042,7 @@ static int rx_bottom(struct r8152 *tp, int budget)
find_next_rx:
rx_data = rx_agg_align(rx_data + pkt_len + ETH_FCS_LEN);
rx_desc = (struct rx_desc *)rx_data;
len_used = (int)(rx_data - (u8 *)agg->head);
len_used = (int)(rx_data - (u8 *)agg->buffer);
len_used += sizeof(struct rx_desc);
}
@ -2162,7 +2153,7 @@ int r8152_submit_rx(struct r8152 *tp, struct rx_agg *agg, gfp_t mem_flags)
return 0;
usb_fill_bulk_urb(agg->urb, tp->udev, usb_rcvbulkpipe(tp->udev, 1),
agg->head, tp->rx_buf_sz,
agg->buffer, tp->rx_buf_sz,
(usb_complete_t)read_bulk_callback, agg);
ret = usb_submit_urb(agg->urb, mem_flags);