On Fri, 17 Dec 2021 16:41:05 +0900 Hector Martin <marcan@xxxxxxxxx> wrote: > On 17/12/2021 09.31, Alex Henrie wrote: > > I am having a similar problem, but unfortunately this patch doesn't > > work for me (I get the error "BIOS uses SMBus unsafely"). Would it be > > acceptable to add a module parameter to allow access to the SMBus, even > > if the BIOS is using it? I realize that this is not a good idea in > > general, but I believe it is safe in my particular case, and I don't > > see any other way to solve my problem. > > How is this safe in your case? If the BIOS is using SMBus without > locking it, and may do so at any time, then there's no way to safely use > it from Linux. The BIOS appears to access the SMBus during the first few minutes after boot, and then it stops using it. So "safe" may not be the right word, but in my case, it seems to work OK to use the SMBus as long as the uptime is greater than a few minutes. -Alex
