Re: [PATCH] mm: initialize variable for mem_cgroup_end_page_stat

[Sasha Levin]

On 10/30/2014 11:06 AM, Johannes Weiner wrote:
>> You're using that value as soon as you are passing it to a function, it
>> > doesn't matter what happens inside that function.
> It's copied as part of the pass-by-value protocol, but we really don't
> do anything with it.  So why does it matter?

Because it's undefined behaviour, which gives your compiler a license to
do whatever it wants?


Thanks,
Sasha

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