On Wed, May 30, 2018 at 12:44:29AM -0700, okaya@xxxxxxxxxxxxxx wrote: > On 2018-05-30 00:37, Christoph Hellwig wrote: > > On Tue, May 29, 2018 at 09:41:33PM -0700, Sinan Kaya wrote: > > > Bjorn and I discussed the need for such a "safe" mode feature when you > > > want to bring up PCI for a platform. You want to turn off everything > > > as > > > a starter and just stick to bare minimum. > > > > Can we please make it a config option the instead of adding code > > to every kernel? Also maybe the bringup should be in the name > > to make this more clear? > > One other requirement was to have a runtime option rather than compile time > option. > > When someone reported a problem, we wanted to be able to say "use this > option and see if system boots" without doing any bisects or recompilation. > > This would be the first step in troubleshooting a system to see if > fundamental features are working. That makes sense, people can not rebuild their kernels for the most part. Putting it behind a config option would not make sense as it would always have to be enabled. > I don't mind changing the name Bjorn mentioned safe option. I made it > safemode. I am looking at Bjorn for suggestions at this moment. "minimal"? "basic"? "crippled"? "my_hardware_is_so_borked_it_needs_this_option"? :) Naming is hard... greg k-h
