Re: [PATCH v4 20/22] driver core: Allow deferring probes until late init

From: Mark Brown
Date: Fri Sep 11 2015 - 08:18:17 EST


On Mon, Sep 07, 2015 at 02:23:45PM +0200, Tomeu Vizoso wrote:
> Add a field to struct device that instructs the device-driver core to
> defer the probe of this device until the late_initcall level.
>
> By letting all built-in drivers to register before starting to probe, we
> can avoid any deferred probes by probing dependencies on demand.

Is this not going to resut in massive churn as we go through and set
this flag for a massive proportion of drivers? Could we mitigate this
by having a first pass at setting this per subsystem or something so
that we get a good proportion of drivers with changes in core code?

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