diff mbox series

[v2,resend,1/4] net: emaclite: don't call dev_kfree_skb() under spin_lock_irqsave()

Message ID 20221208032655.1024032-2-yangyingliang@huawei.com (mailing list archive)
State New, archived
Headers show
Series net: don't call dev_kfree_skb() under spin_lock_irqsave() | expand

Commit Message

Yang Yingliang Dec. 8, 2022, 3:26 a.m. UTC
It is not allowed to call consume_skb() from hardware interrupt context
or with interrupts being disabled. So replace dev_kfree_skb() with
dev_consume_skb_irq() under spin_lock_irqsave().

Fixes: bb81b2ddfa19 ("net: add Xilinx emac lite device driver")
Signed-off-by: Yang Yingliang <yangyingliang@huawei.com>
---
 drivers/net/ethernet/xilinx/xilinx_emaclite.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

Comments

Harini Katakam Dec. 8, 2022, 9:25 a.m. UTC | #1
On Thu, Dec 8, 2022 at 9:04 AM Yang Yingliang <yangyingliang@huawei.com> wrote:
>
> It is not allowed to call consume_skb() from hardware interrupt context
> or with interrupts being disabled. So replace dev_kfree_skb() with
> dev_consume_skb_irq() under spin_lock_irqsave().
>
> Fixes: bb81b2ddfa19 ("net: add Xilinx emac lite device driver")
> Signed-off-by: Yang Yingliang <yangyingliang@huawei.com>

Thanks for the patch Yang
Reviewed-by: Harini Katakam <harini.katakam@amd.com>

Regards,
Harini
diff mbox series

Patch

diff --git a/drivers/net/ethernet/xilinx/xilinx_emaclite.c b/drivers/net/ethernet/xilinx/xilinx_emaclite.c
index a3967f8de417..a1e1387ea84e 100644
--- a/drivers/net/ethernet/xilinx/xilinx_emaclite.c
+++ b/drivers/net/ethernet/xilinx/xilinx_emaclite.c
@@ -536,7 +536,7 @@  static void xemaclite_tx_timeout(struct net_device *dev, unsigned int txqueue)
 	xemaclite_enable_interrupts(lp);
 
 	if (lp->deferred_skb) {
-		dev_kfree_skb(lp->deferred_skb);
+		dev_consume_skb_irq(lp->deferred_skb);
 		lp->deferred_skb = NULL;
 		dev->stats.tx_errors++;
 	}