blob: 29faa788d6a6f4fded044af953f726a2fc2afddb (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
|
From 041b4c87ac61a11ebe5fbd5b2fa00a341e9b4297 Mon Sep 17 00:00:00 2001
From: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Date: Tue, 9 Mar 2021 09:42:14 +0100
Subject: [PATCH 142/323] atm: eni: Use tasklet_disable_in_atomic() in the
send() callback
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/5.10/older/patches-5.10.215-rt107.tar.xz
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
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
---
drivers/atm/eni.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/atm/eni.c b/drivers/atm/eni.c
index 9fcc49be499f1..a31ffe16e626f 100644
--- a/drivers/atm/eni.c
+++ b/drivers/atm/eni.c
@@ -2056,7 +2056,7 @@ static int eni_send(struct atm_vcc *vcc,struct sk_buff *skb)
}
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;
--
2.44.0
|
