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    SubjectRe: [PATCH] driver core: Early dev_name() support.
    On Tue, Mar 09, 2010 at 06:37:27PM -0800, Greg KH wrote:
    > On Tue, Mar 09, 2010 at 03:57:53PM +0900, Paul Mundt wrote:
    > > Presently early platform devices suffer from the fact they are unable to
    > > use dev_xxx() calls early on due to dev_name() and others being
    > > unavailable at the time ->probe() is called.
    > >
    > > This implements early init_name construction from the matched name/id
    > > pair following the semantics of the late device/driver match. As a
    > > result, matched IDs (inclusive of requested ones) are preserved when the
    > > handoff from the early platform code happens at kobject initialization
    > > time.
    > >
    > > Since we still require kmalloc slabs to be available at this point, using
    > > kstrdup() for establishing the init_name works fine. This subsequently
    > > needs to be tested from dev_name() prior to the init_name being cleared
    > > by the driver core. We don't kfree() since others will already have a
    > > handle on the string long before the kobject initialization takes place.
    > >
    > > This is also needed to permit drivers to use the clock framework early,
    > > without having to manually construct their own device IDs from the match
    > > id/name pair locally (needed by the early console and timer code on sh
    > > and arm).
    > Is this change something that we need for .34? Or can it wait for .35?
    If it went in for .34 we would get properly dev_name() resolution in the
    error paths for the existing early platform drivers, but that's obviously
    not critical.

    I have a bunch of work I plan to do on top of it for 2.6.35, so I was
    planning on carrying it in a topic branch once I got your Acked-by.

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