Re: [PATCH 1/2] memblock: add assertion for zero allocation size

From: Tejun Heo
Date: Thu Feb 21 2013 - 14:37:03 EST

On Fri, Feb 22, 2013 at 01:03:41AM +0530, Vineet Gupta wrote:
> Where - you mean if user passes 0, just make it 1. Nah - it's better to complain
> and get the call site fixed !
> > or BUG_ON(!align) instead?
> That could be done too but you would also need BUG_ON(!size) - to catch another
> API abuse.
> BUG_ON(!size) however catches both the cases.

How about "if (WARN_ON(!align)) align = __alignof__(long long);"?
Early BUG_ON()s can be painful to debug depending on setup.


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