Fwd: kobject_init and the zeroed-out-memory requirement

From: Jason Noakes
Date: Sun Oct 05 2014 - 16:06:20 EST


I noticed that kobject_init() requres the kobject passed in to be
zeroed out fully first.

Many other *_init kernel routines (cdev_init, kref_init, mutex_init,
spin_lock_init, etc) do not have the same requirement - they work on
fully uninitialized memory.

Documentation/kobject.txt does not mention the requirement that the
memory be zero-initialized before it is passed to kobject_init.

I would like to submit a patch - which solution is preferred?

(a) Update Documentation/kobject.txt and explicitly add the requirement
(b) Modify kobject_init to zero out the memory itself like other
*_init routines
(It already initializes most of its members - just not all of them)
(c) Something else?

Your preference?

(Please CC: me on replies).

--
~~ Jason J. Noakes
~~ jjnoakes@xxxxxxxxx
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