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SubjectStupid lockdep question...
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I have a 3rd-party module, that throws this whinge:

[ 65.831296] INFO: trying to register non-static key.
[ 65.831301] the code is fine but needs lockdep annotation.
[ 65.831303] turning off the locking correctness validator.

I've identified that it's a call to down(*foo) where foo points to a kmalloc'ed
block of memory that's memset() to all-zeros. What's the initializer/annotation
I need to add to my code?

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