| Date | Tue, 09 Mar 2021 09:42:14 +0100 | From | Thomas Gleixner <> | Subject | [patch 11/14] atm: eni: Use tasklet_disable_in_atomic() in the send() callback |
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From: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
The atmdev_ops::send callback which calls tasklet_disable() is invoked with bottom halfs disabled from net_device_ops::ndo_start_xmit(). All other invocations of tasklet_disable() in this driver happen in preemptible context.
Change the send() call to use tasklet_disable_in_atomic() which allows tasklet_disable() to be made sleepable once the remaining atomic context usage sites are cleaned up.
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Cc: Chas Williams <3chas3@gmail.com> Cc: linux-atm-general@lists.sourceforge.net Cc: netdev@vger.kernel.org --- drivers/atm/eni.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
--- a/drivers/atm/eni.c +++ b/drivers/atm/eni.c @@ -2054,7 +2054,7 @@ static int eni_send(struct atm_vcc *vcc, } submitted++; ATM_SKB(skb)->vcc = vcc; - tasklet_disable(&ENI_DEV(vcc->dev)->task); + tasklet_disable_in_atomic(&ENI_DEV(vcc->dev)->task); res = do_tx(skb); tasklet_enable(&ENI_DEV(vcc->dev)->task); if (res == enq_ok) return 0;
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