On Thu, Aug 22, 2024 at 12:13:52AM +0300, Sergei Shtylyov wrote: > On 8/20/24 6:04 AM, Michael Ellerman wrote: > > > The overflow/underflow conditions in pata_macio_qc_prep() should never > > happen. But if they do there's no need to kill the system entirely, a > > WARN and failing the IO request should be sufficient and might allow the > > system to keep running. > > WARN*() can kill your system with panic_on_warn -- Android is particularly > fond of this kernel parameter but I guess it's not your case... :-) > Greg KH usually advices against using these macros. :-) And in this case he is simply totally wrong. The whole poing of WARN_ON is to have a standardized way to assert conditions.