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

From: Greg Kroah-Hartman
Date: Wed Sep 29 2021 - 03:03:54 EST


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?

thanks,

greg k-h