On Sat,  3 Oct 2015 15:32:36 +0200 Christoph Hellwig [off-list ref] wrote:

This series consolidates the code to implement configfs attributes
by providing the ->show and ->store method in common code and using
container_of in the methods to access the containing structure.

This reduces source and binary size of configfs consumers a lot.

There's a version of this patch series (I assume V1) in linux-next via
Nicholas's tree so my hands are tied.  I trust that Nicholas will
update things.

Or maybe it was a slipup - modifying usb, ocfs2 etc from the iscsi tree
is innovative ;)