Re: [PATCH] drivers: base: add cpu_device_create to support per-cpu devices
From: Greg Kroah-Hartman
Date: Tue Sep 02 2014 - 13:26:38 EST
On Tue, Sep 02, 2014 at 06:22:07PM +0100, Sudeep Holla wrote:
> Hi Greg,
> On 22/08/14 12:29, Sudeep Holla wrote:
> >From: Sudeep Holla <sudeep.holla@xxxxxxx>
> >This patch adds a new function to create per-cpu devices.
> >This helps in:
> >1. reusing the device infrastructure to create any cpu related
> > attributes and corresponding sysfs instead of creating and
> > dealing with raw kobjects directly
> >2. retaining the legacy path(/sys/devices/system/cpu/..) to support
> > existing sysfs ABI
> >3. avoiding to create links in the bus directory pointing to the
> > device as there would be per-cpu instance of these devices with
> > the same name since dev->bus is not populated to cpu_sysbus on
> > purpose
> >Signed-off-by: Sudeep Holla <sudeep.holla@xxxxxxx>
> >Cc: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
> > drivers/base/cpu.c | 54 +++++++++++++++++++++++++++++++++++++++++++++++++++++
> > include/linux/cpu.h | 4 ++++
> > 2 files changed, 58 insertions(+)
> >Hi Greg,
> >Here is the alternate solution I could come up with instead of
> >creating cpu class. cpu_device_create is very similar to
> >device_create_groups_vargs w/o class support, but I could not
> >reuse anything else to avoid creating similar function.
> >Let me know your thoughts/suggestions on this.
> Any feedback on this ? If ok, I will respin cacheinfo series removing
> cpu class creation with this patch.
Please address the issues others have already raised.
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