On Tue, Jan 15, 2013 at 1:52 PM, Rafael J. Wysocki <r...@sisk.pl> wrote: > On Tuesday, January 15, 2013 07:44:21 AM Yinghai Lu wrote: >> On Tue, Jan 15, 2013 at 3:21 AM, Rafael J. Wysocki <r...@sisk.pl> wrote: >> > On Monday, January 14, 2013 10:23:47 PM Yinghai Lu wrote: >> >> On Sat, Jan 12, 2013 at 1:37 PM, Rafael J. Wysocki <r...@sisk.pl> wrote: >> >> > On Friday, January 11, 2013 02:40:29 PM Yinghai Lu wrote: >> >> >> We can stop trying according to try number now and do not need to use >> >> >> root_bus checking as stop sign anymore. >> >> >> >> >> >> In extreme case we could need to reallocate resource for device just >> >> >> under root bus. >> >> > >> >> > Well, the above says that we _can_ do the change, but it doesn't >> >> > explain why it >> >> > is needed. So what's the reason why we need to do that? >> >> >> >> In extreme case we could need to reallocate resource for device just >> >> under root bus. >> >> >> >> otherwise, those devices just under root bus will not be assigned >> >> resources again. >> > >> > IOW, our current code will not cover the case when we hot plug a host >> > bridge >> > and need to reassign resources for devices integrated into it? >> >> yes. in extreme case if _CRS range is not big enough. > > It would be good to say that in the changelog too. It's a clear justification > for the change if we're going to support root bridge hotplug (which we are). >
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