The nlmsg_free() ends up calling kfree_skb(), and kfree_skb() is not allowed to be called
from hardware interrupt context or with hardware interrupts being disabled. Replace the
mistaken usage of nlmsg_free() by dev_kfree_skb_irq(), which is safe in both cases.
Signed-off-by: EN-WEI WU <enweiwu@xxxxxxxxxxx>
---
drivers/net/wireless/virtual/mac80211_hwsim.c | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)
diff --git a/drivers/net/wireless/virtual/mac80211_hwsim.c b/drivers/net/wireless/virtual/mac80211_hwsim.c
index f446fd0e8cd0..678021cf4e57 100644
--- a/drivers/net/wireless/virtual/mac80211_hwsim.c
+++ b/drivers/net/wireless/virtual/mac80211_hwsim.c
@@ -6314,7 +6314,7 @@ static void hwsim_virtio_tx_done(struct virtqueue *vq)
spin_lock_irqsave(&hwsim_virtio_lock, flags);
while ((skb = virtqueue_get_buf(vq, &len)))
- nlmsg_free(skb);
+ dev_kfree_skb_irq(skb);
spin_unlock_irqrestore(&hwsim_virtio_lock, flags);
}
@@ -6383,14 +6383,14 @@ static void hwsim_virtio_rx_work(struct work_struct *work)
spin_lock_irqsave(&hwsim_virtio_lock, flags);
if (!hwsim_virtio_enabled) {
- nlmsg_free(skb);
+ dev_kfree_skb_irq(skb);
goto out_unlock;
}
vq = hwsim_vqs[HWSIM_VQ_RX];
sg_init_one(sg, skb->head, skb_end_offset(skb));
err = virtqueue_add_inbuf(vq, sg, 1, skb, GFP_ATOMIC);
if (WARN(err, "virtqueue_add_inbuf returned %d\n", err))
- nlmsg_free(skb);
+ dev_kfree_skb_irq(skb);
else
virtqueue_kick(vq);
schedule_work(&hwsim_virtio_rx);
--
2.37.1 (Apple Git-137.1)
