Hello:
This patch was applied to netdev/net.git (master) by Paolo Abeni pabeni@redhat.com:
On Fri, 2 Dec 2022 11:43:10 -0800 you wrote:
After calling napi_complete_done(), the NAPIF_STATE_SCHED bit may be cleared, and another CPU can start napi thread and access per-CQ variable, cq->work_done. If the other thread (for example, from busy_poll) sets it to a value >= budget, this thread will continue to run when it should stop, and cause memory corruption and panic.
To fix this issue, save the per-CQ work_done variable in a local variable before napi_complete_done(), so it won't be corrupted by a possible concurrent thread after napi_complete_done().
[...]
Here is the summary with links: - [net] net: mana: Fix race on per-CQ variable napi work_done https://git.kernel.org/netdev/net/c/18010ff776fa
You are awesome, thank you!