Re: [PATCH v14] x86, mce: Add memcpy_mcsafe()

[Tony Luck]

On Thu, Mar 10, 2016 at 11:37 AM, Luck, Tony <tony.luck@xxxxxxxxx> wrote:
>> But you return 0 == false for success and 1 == true for failure.
>
> Aaargh!  -ETOOMUCHSHELLSCRIPTPROGRAMMING
>
> -Tony

Options to fix this:
1) Just change the comments in the code.
     This seems like it would confuse people as I thing most people
     would expect the "true" return to mean the copy succeeded.
2) Reverse the return values.
     Better that option 1 - but doesn't leave scope to return a count
     if some future user does want to know where the copy failed.
3) Change the return type back from "bool" to "int"
     0 == success, non-zero == fail (with option to put the non-copied
byte count in later).
4) Something else

-Tony