Messages in this thread | | | From | H Hartley Sweeten <> | Date | Thu, 10 May 2012 17:31:36 -0500 | Subject | RE: [PATCH v2] staging: comedi: refactor sysfs files in comedi_fops.c |
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On Wednesday, May 09, 2012 1:39 PM, Greg KH wrote: > On Wed, May 09, 2012 at 09:20:08AM -0700, H Hartley Sweeten wrote: >> Refactor the sysfs attributes and functions to remove >> the need for the forward declarations and use the >> DEVICE_ATTR macro to define them. >> >> Instead of individually creating sysfs device attribute >> files, wrap them in an attribute_group and use the >> sysfs_create_group function to create them. > > This is great, and needed to be done, but you need to take this one step > further. This attribute group needs to be registered by the driver > core, not the comedi core, so userspace doesn't get an add event before > the files are created. To do that, assign this attribute group to the > class and the core will handle it for you. > > I've taken this patch, but will you make a follow-on patch that makes > this change, which will remove this race? It should be a net removal of > code in the comedi core overall. > I think I worked this out. Compile testing it now and will post the patch shortly.
Regards, Hartley
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