diff mbox series

[5.10.y-cip,18/47] ravb: Use GFP_KERNEL instead of GFP_ATOMIC when possible

Message ID 20240529081039.639010-19-claudiu.beznea.uj@bp.renesas.com (mailing list archive)
State New
Headers show
Series Add Ethernet support for Renesas RZ/G3S SoC | expand

Commit Message

claudiu beznea May 29, 2024, 8:10 a.m. UTC 
From: Christophe JAILLET <christophe.jaillet@wanadoo.fr>

commit 91398a960edf50d27206d808182e3357f9f5c668 upstream.

'max_rx_len' can be up to GBETH_RX_BUFF_MAX (i.e. 8192) (see
'gbeth_hw_info').
The default value of 'num_rx_ring' can be BE_RX_RING_SIZE (i.e. 1024).

So this loop can allocate 8 Mo of memory.

Previous memory allocations in this function already use GFP_KERNEL, so
use __netdev_alloc_skb() 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>
Reviewed-by: Sergey Shtylyov <s.shtylyov@omp.ru>
Reviewed-by: Biju Das <biju.das.jz@bp.renesas.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Claudiu Beznea <claudiu.beznea.uj@bp.renesas.com>
---
 drivers/net/ethernet/renesas/ravb_main.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
diff mbox series

Patch

diff --git a/drivers/net/ethernet/renesas/ravb_main.c b/drivers/net/ethernet/renesas/ravb_main.c
index 0c803f697825..ed19026e0976 100644
--- a/drivers/net/ethernet/renesas/ravb_main.c
+++ b/drivers/net/ethernet/renesas/ravb_main.c
@@ -482,7 +482,7 @@  static int ravb_ring_init(struct net_device *ndev, int q)
 		goto error;
 
 	for (i = 0; i < priv->num_rx_ring[q]; i++) {
-		skb = netdev_alloc_skb(ndev, info->max_rx_len);
+		skb = __netdev_alloc_skb(ndev, info->max_rx_len, GFP_KERNEL);
 		if (!skb)
 			goto error;
 		ravb_set_buffer_align(skb);