Messages in this thread | | | Date | Thu, 19 Mar 2015 11:29:57 -0400 | From | Tejun Heo <> | Subject | Re: [PATCH 3/3] EDAC: amd64_edac: decide if driver can load successfully early. |
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Hello, Borislav.
On Thu, Mar 19, 2015 at 10:40:54AM +0100, Borislav Petkov wrote: > This is why I did the drv_instances hack - I don't want it to load if > there's no ECC support on the system as it is confusing to people and > tools. > > It'd need to be able for the async probing to unload the driver if not a > single node instance loads successfully.
I don't really think this is the type of things we want to be doing in the specific drivers. It makes the driver behave differnetly from everything else. If a feature like this is actually necessary, please implement a proper abstraction at the driver layer (e.g. a flag to indicate that if the initial probe fails, there's no point in keeping the driver around) but frankly I don't think this matters enough to warrant such extra complexities.
This is a gloss layering violation. Please don't do things like this. I'm all for ripping out the hack even w/o considering the async probe issue.
Thanks.
-- tejun
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