Re: [PATCH 16/17] ABI: sysfs-driver-ufs: Add another What for platform drivers

From: Greg Kroah-Hartman
Date: Wed Sep 29 2021 - 03:39:47 EST


On Wed, Sep 29, 2021 at 07:23:32AM +0000, Avri Altman wrote:
> > On Wed, Sep 29, 2021 at 06:32:40AM +0000, Avri Altman wrote:
> > > > The current what expressions:
> > > > What: /sys/bus/platform/drivers/ufshcd/*/...
> > > >
> > > > Doesn't actually match what (some?) platform drivers actually
> > > > export. For instance, drivers/scsi/ufs/ufs-hisi.c actually creates
> > > > the sysfs struct for ufshcd inside this directory:
> > > >
> > > > /sys/devices/platform/soc/ff3c0000.ufs
> > > >
> > > > Which has those aliases:
> > > >
> > > > /sys/devices/virtual/devlink/platform:fff35000.crg_ctrl--
> > > > platform:ff3c0000.ufs/consumer/
> > > > /sys/bus/platform/drivers/ufshcd-hisi/ff3c0000.ufs/
> > > > /sys/bus/platform/devices/soc/ff3c0000.ufs/
> > > > /sys/bus/platform/devices/ff3c0000.ufs/
> > > >
> > > > So, add another What: for such files that will match the device ufs
> > > > entries, e. g.:
> > > >
> > > > What: /sys/bus/platform/devices/*.ufs/
> > > On some platforms the suffix is .ufshc So Maybe use:
> > > /sys/bus/platform/devices/*.ufs*/
> >
> > That's confusing. How about describing why "ufshc" is used in another
> > entry? You all must have picked the new name for some reason to
> > differentiate, right?
> It's a platform thing. Better let the platform guys answer that.

What plaform people?