net: ll_temac: Use GFP_KERNEL instead of GFP_ATOMIC when possible

XTE_MAX_JUMBO_FRAME_SIZE is over 9000 bytes and the default value for
'rx_bd_num' is RX_BD_NUM_DEFAULT	(i.e. 1024)

So this loop allocates more than 9 Mo of memory.

Previous memory allocations in this function already use GFP_KERNEL, so
use __netdev_alloc_skb_ip_align() and an explicit GFP_KERNEL instead of a
implicit GFP_ATOMIC.

This gives more opportunities of successful allocation.

Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Link: https://lore.kernel.org/r/694abd65418b2b3974106a82d758e3474c65ae8f.1645042560.git.christophe.jaillet@wanadoo.fr
Signed-off-by: Jakub Kicinski <kuba@kernel.org>

diff --git a/drivers/net/ethernet/xilinx/ll_temac_main.c b/drivers/net/ethernet/xilinx/ll_temac_main.c
index b900ab5..0547a3f 100644 (file)
--- a/drivers/net/ethernet/xilinx/ll_temac_main.c
+++ b/drivers/net/ethernet/xilinx/ll_temac_main.c
@@ -361,8 +361,9 @@ static int temac_dma_bd_init(struct net_device *ndev)
                lp->rx_bd_v[i].next = cpu_to_be32(lp->rx_bd_p
                        + sizeof(*lp->rx_bd_v) * ((i + 1) % lp->rx_bd_num));
 
-               skb = netdev_alloc_skb_ip_align(ndev,
-                                               XTE_MAX_JUMBO_FRAME_SIZE);
+               skb = __netdev_alloc_skb_ip_align(ndev,
+                                                 XTE_MAX_JUMBO_FRAME_SIZE,
+                                                 GFP_KERNEL);
                if (!skb)
                        goto out;