[PATCH 0/3] Driver core: Encourage use of const attributes

[Phil Carmody <ext-phil.2.carmody@nokia.com>]

I know now's probably a bad time to be mentioning const issues
but I recently a reviewed a patch where 'const' was being removed 
from a device_attribute structure, and I enquired why. The reason
was simply so that device_create_file() could be called, it taking
a non-const attribute pointer. Looking inside, all that function 
did was pass a pointer to sysfs_create_file, which itself took a
const pointer. Non-constness was not required at all.

So here I offer a small patchset which I hope will permit and 
encourage device and other attributes to be made const, and put 
in read-only sections.

These have been compile/sparse tested against arm and x86_64 targets, 
and through my usual suite of tests on the arm platform I use.

In addition to the changes in the prior RFC, I have updated the 
documentation appropriately.

Regards,
Phil