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| author | Yang Yingliang <yangyingliang@huawei.com> | 2022-12-08 17:21:46 +0300 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2022-12-12 12:56:17 +0300 |
| commit | 3727f742915f04f6fc550b80cf406999bd4e90d0 (patch) | |
| tree | 5c727f096288466efaa44e8a893f2a4cb006b92c /tools/perf/scripts/python/stackcollapse.py | |
| parent | f07fadcbee2a5e84caa67c7c445424200bffb60b (diff) | |
| download | linux-3727f742915f04f6fc550b80cf406999bd4e90d0.tar.xz | |
hamradio: don't call dev_kfree_skb() under spin_lock_irqsave()
It is not allowed to call kfree_skb() or consume_skb() from hardware
interrupt context or with hardware interrupts being disabled.
It should use dev_kfree_skb_irq() or dev_consume_skb_irq() instead.
The difference between them is free reason, dev_kfree_skb_irq() means
the SKB is dropped in error and dev_consume_skb_irq() means the SKB
is consumed in normal.
In scc_discard_buffers(), dev_kfree_skb() is called to discard the SKBs,
so replace it with dev_kfree_skb_irq().
In scc_net_tx(), dev_kfree_skb() is called to drop the SKB that exceed
queue length, so replace it with dev_kfree_skb_irq().
Fixes: 1da177e4c3f4 ("Linux-2.6.12-rc2")
Signed-off-by: Yang Yingliang <yangyingliang@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'tools/perf/scripts/python/stackcollapse.py')
0 files changed, 0 insertions, 0 deletions