Guenter Roeck <linux@xxxxxxxxxxxx> 于2023年3月9日周四 13:30写道： > > On 3/8/23 19:58, Zheng Hacker wrote: > > Hi, > > > > Thanks for your reply. I think you're right. I don't know if there is > > other method to stop new work from enqueing. Could you please give me > > some advice about the fix? > > > > Top-posting is discouraged. > Sorry I forgot that. Thanks for the kind reminder. > Anyway - > I don't know the code well enough to suggest a solution. > It all depends on the driver architecture. The maintainers might > have a better idea. > Yes, some related developers have reached out to me and discussed fixes with me. > A worse problem appears to be that the worker is also canceled > from mtk_jpeg_enc_irq() and mtk_jpeg_dec_irq(). Those are non-threaded > interrupt handlers which, as far as I know, must not sleep and thus > can not call cancel_delayed_work_sync(). I have no idea how to solve > that problem either. > I'd be glad to pass along your thoughts and recommendations to the relevant parties. Best regards, Zheng
