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Re: [PATCH 3/4] libertas: don't call kfree_skb() under spin_lock_irqsave() in lbs_stop_iface()

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On Tue, Dec 6, 2022 at 12:49 PM Yang Yingliang <yangyingliang@xxxxxxxxxx> wrote:
>
> It is not allowed to call kfree_skb() from hardware interrupt
> context or with interrupts being disabled. So replace kfree_skb()
> with dev_kfree_skb_irq() under spin_lock_irqsave().
>
> Fixes: d2e7b3425c47 ("libertas: disable functionality when interface is down")
> Signed-off-by: Yang Yingliang <yangyingliang@xxxxxxxxxx>
> ---
>  drivers/net/wireless/marvell/libertas/main.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/drivers/net/wireless/marvell/libertas/main.c b/drivers/net/wireless/marvell/libertas/main.c
> index 8f5220cee112..f42d28d99763 100644
> --- a/drivers/net/wireless/marvell/libertas/main.c
> +++ b/drivers/net/wireless/marvell/libertas/main.c
> @@ -216,7 +216,7 @@ int lbs_stop_iface(struct lbs_private *priv)
>
>         spin_lock_irqsave(&priv->driver_lock, flags);
>         priv->iface_running = false;
> -       kfree_skb(priv->currenttxskb);
> +       dev_kfree_skb_irq(priv->currenttxskb);
>         priv->currenttxskb = NULL;
>         priv->tx_pending_len = 0;
>         spin_unlock_irqrestore(&priv->driver_lock, flags);
> --
> 2.25.1
>
>
> _______________________________________________
> libertas-dev mailing list
> libertas-dev@xxxxxxxxxxxxxxxxxxx
> http://lists.infradead.org/mailman/listinfo/libertas-dev




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