How to decode a kernel symbol

[Santhosh Kumar]

To debug a problem I added some debugs in the kernel code to print the
address at which a lock is taken, by calling __builtin_return_address(1).

How do I find the symbol (function name) corresponding to the address
printed ?

Apologies if this is an often repeated question here. In that case would
appreciate if someone can point a link covering this.
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