[PATCH v4 05/13] drivers: create binary sysfs for class

Greg Kroah-Hartman gregkh at linuxfoundation.org
Fri Apr 5 09:23:00 UTC 2019


On Fri, Apr 05, 2019 at 02:12:54PM +0530, Ramalingam C wrote:
> Functions to create and remove the binary sysfs for class are added.
> 
> These are getting introduced as DRM wants to create the common binary
> sysfs across the drm subsystem to handle hdcp srm.

Why do you need individual files?  That's almost always a sign that you
are going to race with userspace in a bad way.  Why not just use an
attribute group which provides automatic support for this?

thanks,

greg k-h


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